Merge pull request #1552 from crazy-max/moby-buildkit-version
driver: resolve BuildKit version for docker driverpull/1707/head
CrazyMax
2 years ago
committed by
GitHub
commit
33388d6ede
@ -0,0 +1,186 @@
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package docker
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import (
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"github.com/Masterminds/semver/v3"
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)
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type mobyBuildkitVersion struct {
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MobyVersionConstraint string
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BuildkitVersion string
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}
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// https://gist.github.com/crazy-max/780cb6878c37cb79ec3f7699706cf83f
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// constraint syntax: https://github.com/Masterminds/semver#checking-version-constraints
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var mobyBuildkitVersions = []mobyBuildkitVersion{
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{
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MobyVersionConstraint: ">= 18.06.0-0, < 18.06.1-0",
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BuildkitVersion: "v0.0.0+9acf51e",
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},
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{
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MobyVersionConstraint: ">= 18.06.1-0, < 18.09.0-0",
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BuildkitVersion: "v0.0.0+98f1604",
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},
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{
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MobyVersionConstraint: ">= 18.09.0-0, < 18.09.1-0",
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BuildkitVersion: "v0.0.0+c7bb575",
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},
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{
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MobyVersionConstraint: "~18.09.1-0",
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BuildkitVersion: "v0.3.3",
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},
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{
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MobyVersionConstraint: "> 18.09.1-0, < 18.09.6-0",
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BuildkitVersion: "v0.3.3+d9f7592",
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},
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{
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MobyVersionConstraint: ">= 18.09.6-0, < 18.09.7-0",
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BuildkitVersion: "v0.4.0+ed4da8b",
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},
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{
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MobyVersionConstraint: ">= 18.09.7-0, < 19.03.0-0",
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BuildkitVersion: "v0.4.0+05766c5",
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},
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{
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MobyVersionConstraint: "<= 19.03.0-beta2",
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BuildkitVersion: "v0.4.0+b302896",
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},
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{
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MobyVersionConstraint: "<= 19.03.0-beta3",
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BuildkitVersion: "v0.4.0+8818c67",
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},
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{
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MobyVersionConstraint: "<= 19.03.0-beta5",
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BuildkitVersion: "v0.5.1+f238f1e",
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},
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{
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MobyVersionConstraint: "< 19.03.2-0",
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BuildkitVersion: "v0.5.1+1f89ec1",
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},
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{
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MobyVersionConstraint: "<= 19.03.2-beta1",
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BuildkitVersion: "v0.6.1",
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},
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{
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MobyVersionConstraint: ">= 19.03.2-0, < 19.03.3-0",
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BuildkitVersion: "v0.6.1+588c73e",
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},
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{
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MobyVersionConstraint: ">= 19.03.3-0, < 19.03.5-beta2",
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BuildkitVersion: "v0.6.2",
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},
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{
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MobyVersionConstraint: "<= 19.03.5-rc1",
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BuildkitVersion: "v0.6.2+ff93519",
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},
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{
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MobyVersionConstraint: "<= 19.03.5",
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BuildkitVersion: "v0.6.3+928f3b4",
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},
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{
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MobyVersionConstraint: "<= 19.03.6-rc1",
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BuildkitVersion: "v0.6.3+926935b",
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},
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{
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MobyVersionConstraint: ">= 19.03.6-rc2, < 19.03.7-0",
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BuildkitVersion: "v0.6.3+57e8ad5",
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},
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{
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MobyVersionConstraint: ">= 19.03.7-0, < 19.03.9-0",
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BuildkitVersion: "v0.6.4",
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},
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{
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MobyVersionConstraint: ">= 19.03.9-0, < 19.03.13-0",
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BuildkitVersion: "v0.6.4+a7d7b7f",
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},
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{
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MobyVersionConstraint: "<= 19.03.13-beta2",
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BuildkitVersion: "v0.6.4+da1f4bf",
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},
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{
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MobyVersionConstraint: "<= 19.03.14",
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BuildkitVersion: "v0.6.4+df89d4d",
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},
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{
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MobyVersionConstraint: "< 20.10.0",
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BuildkitVersion: "v0.6.4+396bfe2",
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},
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{
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MobyVersionConstraint: "20.10.0-0 - 20.10.2-0",
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BuildkitVersion: "v0.8.1",
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},
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{
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MobyVersionConstraint: ">= 20.10.3-0, < 20.10.4-0",
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BuildkitVersion: "v0.8.1+68bb095",
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},
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{
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MobyVersionConstraint: "20.10.4-0 - 20.10.6",
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BuildkitVersion: "v0.8.2",
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},
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{
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MobyVersionConstraint: "20.10.7-0 - 20.10.10-0",
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BuildkitVersion: "v0.8.2+244e8cde",
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},
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{
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MobyVersionConstraint: "20.10.11-0 - 20.10.18-0",
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BuildkitVersion: "v0.8.2+bc07b2b8",
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},
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{
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MobyVersionConstraint: ">= 20.10.19-0, < 20.10.20-0",
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BuildkitVersion: "v0.8.2+3a1eeca5",
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},
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{
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MobyVersionConstraint: ">= 20.10.20-0, < 20.10.21-0",
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BuildkitVersion: "v0.8.2+c0149372",
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},
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{
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MobyVersionConstraint: ">= 20.10.21-0, <= 20.10.23",
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BuildkitVersion: "v0.8.2+eeb7b65",
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},
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{
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MobyVersionConstraint: "~20.10-0",
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BuildkitVersion: "v0.8+unknown",
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},
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{
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MobyVersionConstraint: "~22.06-0",
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BuildkitVersion: "v0.10.3",
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},
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{
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MobyVersionConstraint: ">= 23.0.0-0, < 23.0.1-0",
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BuildkitVersion: "v0.10.6",
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},
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{
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MobyVersionConstraint: "23.0.1",
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BuildkitVersion: "v0.10.6+4f0ee09",
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},
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{
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MobyVersionConstraint: "23.0.2",
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BuildkitVersion: "v0.10.6+70f2ad5",
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},
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{
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MobyVersionConstraint: "~23-0",
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BuildkitVersion: "v0.10+unknown",
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},
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}
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func resolveBuildKitVersion(ver string) (string, error) {
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mobyVersion, err := semver.NewVersion(ver)
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if err != nil {
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return "", err
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}
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for _, m := range mobyBuildkitVersions {
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c, err := semver.NewConstraint(m.MobyVersionConstraint)
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if err != nil {
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return "", err
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}
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//if _, errs := c.Validate(mobyVersion); len(errs) > 0 {
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// for _, err := range errs {
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// fmt.Printf("%s: %v\n", m.MobyVersionConstraint, err)
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// }
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//}
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if !c.Check(mobyVersion) {
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continue
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}
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return m.BuildkitVersion, nil
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}
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return "", nil
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}
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@ -0,0 +1,127 @@
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package docker
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import (
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"testing"
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"github.com/Masterminds/semver/v3"
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"github.com/stretchr/testify/require"
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)
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func TestConstraint(t *testing.T) {
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for _, tt := range mobyBuildkitVersions {
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tt := tt
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t.Run(tt.MobyVersionConstraint, func(t *testing.T) {
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_, err := semver.NewConstraint(tt.MobyVersionConstraint)
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require.NoError(t, err)
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})
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}
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}
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func TestResolveBuildKitVersion(t *testing.T) {
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cases := []struct {
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mobyVersion string
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expected string
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err bool
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}{
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{
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mobyVersion: "18.06.1-ce",
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expected: "v0.0.0+98f1604",
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},
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{
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mobyVersion: "18.09.1-beta1",
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expected: "v0.3.3",
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},
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{
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mobyVersion: "19.03.0-beta1",
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expected: "v0.4.0+b302896",
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},
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{
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mobyVersion: "19.03.5-beta2",
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expected: "v0.6.2+ff93519",
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},
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{
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mobyVersion: "19.03.13-beta1",
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expected: "v0.6.4+da1f4bf",
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},
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{
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mobyVersion: "19.03.13-beta2",
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expected: "v0.6.4+da1f4bf",
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},
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{
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mobyVersion: "19.03.13",
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expected: "v0.6.4+df89d4d",
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},
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{
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mobyVersion: "20.10.3-rc.1",
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expected: "v0.8.1+68bb095",
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},
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{
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mobyVersion: "20.10.3",
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expected: "v0.8.1+68bb095",
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},
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{
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mobyVersion: "20.10.4",
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expected: "v0.8.2",
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},
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{
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mobyVersion: "20.10.16",
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expected: "v0.8.2+bc07b2b8",
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},
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{
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mobyVersion: "20.10.19",
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expected: "v0.8.2+3a1eeca5",
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},
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{
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mobyVersion: "20.10.23",
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expected: "v0.8.2+eeb7b65",
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},
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{
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mobyVersion: "20.10.24",
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expected: "v0.8+unknown",
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},
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{
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mobyVersion: "20.10.50",
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expected: "v0.8+unknown",
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},
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{
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mobyVersion: "22.06.0-beta.0",
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expected: "v0.10.3",
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},
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{
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mobyVersion: "22.06.0",
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expected: "v0.10.3",
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},
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{
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mobyVersion: "23.0.0-rc.4",
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expected: "v0.10.6",
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},
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{
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mobyVersion: "23.0.0",
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expected: "v0.10.6",
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},
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{
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mobyVersion: "23.0.1",
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expected: "v0.10.6+4f0ee09",
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},
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{
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mobyVersion: "23.0.2-rc.1",
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expected: "v0.10+unknown",
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},
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{
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mobyVersion: "23.0.4",
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expected: "v0.10+unknown",
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},
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}
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for _, tt := range cases {
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tt := tt
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t.Run(tt.mobyVersion, func(t *testing.T) {
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bkVersion, err := resolveBuildKitVersion(tt.mobyVersion)
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if tt.err {
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require.Error(t, err)
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return
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}
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require.NoError(t, err)
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require.Equal(t, tt.expected, bkVersion)
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})
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}
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}
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@ -0,0 +1 @@
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_fuzz/
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@ -0,0 +1,30 @@
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run:
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deadline: 2m
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linters:
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disable-all: true
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enable:
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- misspell
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- structcheck
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- govet
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- staticcheck
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- deadcode
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- errcheck
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- varcheck
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- unparam
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- ineffassign
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- nakedret
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- gocyclo
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- dupl
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- goimports
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- revive
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- gosec
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- gosimple
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- typecheck
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- unused
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linters-settings:
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gofmt:
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simplify: true
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dupl:
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threshold: 600
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@ -0,0 +1,214 @@
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# Changelog
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## 3.2.0 (2022-11-28)
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### Added
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- #190: Added text marshaling and unmarshaling
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- #167: Added JSON marshalling for constraints (thanks @SimonTheLeg)
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- #173: Implement encoding.TextMarshaler and encoding.TextUnmarshaler on Version (thanks @MarkRosemaker)
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- #179: Added New() version constructor (thanks @kazhuravlev)
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### Changed
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- #182/#183: Updated CI testing setup
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### Fixed
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- #186: Fixing issue where validation of constraint section gave false positives
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- #176: Fix constraints check with *-0 (thanks @mtt0)
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- #181: Fixed Caret operator (^) gives unexpected results when the minor version in constraint is 0 (thanks @arshchimni)
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- #161: Fixed godoc (thanks @afirth)
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## 3.1.1 (2020-11-23)
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### Fixed
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- #158: Fixed issue with generated regex operation order that could cause problem
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## 3.1.0 (2020-04-15)
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### Added
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- #131: Add support for serializing/deserializing SQL (thanks @ryancurrah)
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### Changed
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- #148: More accurate validation messages on constraints
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## 3.0.3 (2019-12-13)
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### Fixed
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- #141: Fixed issue with <= comparison
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## 3.0.2 (2019-11-14)
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### Fixed
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- #134: Fixed broken constraint checking with ^0.0 (thanks @krmichelos)
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## 3.0.1 (2019-09-13)
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### Fixed
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- #125: Fixes issue with module path for v3
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## 3.0.0 (2019-09-12)
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This is a major release of the semver package which includes API changes. The Go
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API is compatible with ^1. The Go API was not changed because many people are using
|
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`go get` without Go modules for their applications and API breaking changes cause
|
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errors which we have or would need to support.
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The changes in this release are the handling based on the data passed into the
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functions. These are described in the added and changed sections below.
|
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### Added
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- StrictNewVersion function. This is similar to NewVersion but will return an
|
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error if the version passed in is not a strict semantic version. For example,
|
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1.2.3 would pass but v1.2.3 or 1.2 would fail because they are not strictly
|
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speaking semantic versions. This function is faster, performs fewer operations,
|
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and uses fewer allocations than NewVersion.
|
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- Fuzzing has been performed on NewVersion, StrictNewVersion, and NewConstraint.
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The Makefile contains the operations used. For more information on you can start
|
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on Wikipedia at https://en.wikipedia.org/wiki/Fuzzing
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- Now using Go modules
|
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|
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### Changed
|
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|
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- NewVersion has proper prerelease and metadata validation with error messages
|
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to signal an issue with either of them
|
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- ^ now operates using a similar set of rules to npm/js and Rust/Cargo. If the
|
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version is >=1 the ^ ranges works the same as v1. For major versions of 0 the
|
||||
rules have changed. The minor version is treated as the stable version unless
|
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a patch is specified and then it is equivalent to =. One difference from npm/js
|
||||
is that prereleases there are only to a specific version (e.g. 1.2.3).
|
||||
Prereleases here look over multiple versions and follow semantic version
|
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ordering rules. This pattern now follows along with the expected and requested
|
||||
handling of this packaged by numerous users.
|
||||
|
||||
## 1.5.0 (2019-09-11)
|
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|
||||
### Added
|
||||
|
||||
- #103: Add basic fuzzing for `NewVersion()` (thanks @jesse-c)
|
||||
|
||||
### Changed
|
||||
|
||||
- #82: Clarify wildcard meaning in range constraints and update tests for it (thanks @greysteil)
|
||||
- #83: Clarify caret operator range for pre-1.0.0 dependencies (thanks @greysteil)
|
||||
- #72: Adding docs comment pointing to vert for a cli
|
||||
- #71: Update the docs on pre-release comparator handling
|
||||
- #89: Test with new go versions (thanks @thedevsaddam)
|
||||
- #87: Added $ to ValidPrerelease for better validation (thanks @jeremycarroll)
|
||||
|
||||
### Fixed
|
||||
|
||||
- #78: Fix unchecked error in example code (thanks @ravron)
|
||||
- #70: Fix the handling of pre-releases and the 0.0.0 release edge case
|
||||
- #97: Fixed copyright file for proper display on GitHub
|
||||
- #107: Fix handling prerelease when sorting alphanum and num
|
||||
- #109: Fixed where Validate sometimes returns wrong message on error
|
||||
|
||||
## 1.4.2 (2018-04-10)
|
||||
|
||||
### Changed
|
||||
|
||||
- #72: Updated the docs to point to vert for a console appliaction
|
||||
- #71: Update the docs on pre-release comparator handling
|
||||
|
||||
### Fixed
|
||||
|
||||
- #70: Fix the handling of pre-releases and the 0.0.0 release edge case
|
||||
|
||||
## 1.4.1 (2018-04-02)
|
||||
|
||||
### Fixed
|
||||
|
||||
- Fixed #64: Fix pre-release precedence issue (thanks @uudashr)
|
||||
|
||||
## 1.4.0 (2017-10-04)
|
||||
|
||||
### Changed
|
||||
|
||||
- #61: Update NewVersion to parse ints with a 64bit int size (thanks @zknill)
|
||||
|
||||
## 1.3.1 (2017-07-10)
|
||||
|
||||
### Fixed
|
||||
|
||||
- Fixed #57: number comparisons in prerelease sometimes inaccurate
|
||||
|
||||
## 1.3.0 (2017-05-02)
|
||||
|
||||
### Added
|
||||
|
||||
- #45: Added json (un)marshaling support (thanks @mh-cbon)
|
||||
- Stability marker. See https://masterminds.github.io/stability/
|
||||
|
||||
### Fixed
|
||||
|
||||
- #51: Fix handling of single digit tilde constraint (thanks @dgodd)
|
||||
|
||||
### Changed
|
||||
|
||||
- #55: The godoc icon moved from png to svg
|
||||
|
||||
## 1.2.3 (2017-04-03)
|
||||
|
||||
### Fixed
|
||||
|
||||
- #46: Fixed 0.x.x and 0.0.x in constraints being treated as *
|
||||
|
||||
## Release 1.2.2 (2016-12-13)
|
||||
|
||||
### Fixed
|
||||
|
||||
- #34: Fixed issue where hyphen range was not working with pre-release parsing.
|
||||
|
||||
## Release 1.2.1 (2016-11-28)
|
||||
|
||||
### Fixed
|
||||
|
||||
- #24: Fixed edge case issue where constraint "> 0" does not handle "0.0.1-alpha"
|
||||
properly.
|
||||
|
||||
## Release 1.2.0 (2016-11-04)
|
||||
|
||||
### Added
|
||||
|
||||
- #20: Added MustParse function for versions (thanks @adamreese)
|
||||
- #15: Added increment methods on versions (thanks @mh-cbon)
|
||||
|
||||
### Fixed
|
||||
|
||||
- Issue #21: Per the SemVer spec (section 9) a pre-release is unstable and
|
||||
might not satisfy the intended compatibility. The change here ignores pre-releases
|
||||
on constraint checks (e.g., ~ or ^) when a pre-release is not part of the
|
||||
constraint. For example, `^1.2.3` will ignore pre-releases while
|
||||
`^1.2.3-alpha` will include them.
|
||||
|
||||
## Release 1.1.1 (2016-06-30)
|
||||
|
||||
### Changed
|
||||
|
||||
- Issue #9: Speed up version comparison performance (thanks @sdboyer)
|
||||
- Issue #8: Added benchmarks (thanks @sdboyer)
|
||||
- Updated Go Report Card URL to new location
|
||||
- Updated Readme to add code snippet formatting (thanks @mh-cbon)
|
||||
- Updating tagging to v[SemVer] structure for compatibility with other tools.
|
||||
|
||||
## Release 1.1.0 (2016-03-11)
|
||||
|
||||
- Issue #2: Implemented validation to provide reasons a versions failed a
|
||||
constraint.
|
||||
|
||||
## Release 1.0.1 (2015-12-31)
|
||||
|
||||
- Fixed #1: * constraint failing on valid versions.
|
||||
|
||||
## Release 1.0.0 (2015-10-20)
|
||||
|
||||
- Initial release
|
||||
@ -0,0 +1,19 @@
|
||||
Copyright (C) 2014-2019, Matt Butcher and Matt Farina
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
of this software and associated documentation files (the "Software"), to deal
|
||||
in the Software without restriction, including without limitation the rights
|
||||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
copies of the Software, and to permit persons to whom the Software is
|
||||
furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in
|
||||
all copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
THE SOFTWARE.
|
||||
@ -0,0 +1,37 @@
|
||||
GOPATH=$(shell go env GOPATH)
|
||||
GOLANGCI_LINT=$(GOPATH)/bin/golangci-lint
|
||||
GOFUZZBUILD = $(GOPATH)/bin/go-fuzz-build
|
||||
GOFUZZ = $(GOPATH)/bin/go-fuzz
|
||||
|
||||
.PHONY: lint
|
||||
lint: $(GOLANGCI_LINT)
|
||||
@echo "==> Linting codebase"
|
||||
@$(GOLANGCI_LINT) run
|
||||
|
||||
.PHONY: test
|
||||
test:
|
||||
@echo "==> Running tests"
|
||||
GO111MODULE=on go test -v
|
||||
|
||||
.PHONY: test-cover
|
||||
test-cover:
|
||||
@echo "==> Running Tests with coverage"
|
||||
GO111MODULE=on go test -cover .
|
||||
|
||||
.PHONY: fuzz
|
||||
fuzz: $(GOFUZZBUILD) $(GOFUZZ)
|
||||
@echo "==> Fuzz testing"
|
||||
$(GOFUZZBUILD)
|
||||
$(GOFUZZ) -workdir=_fuzz
|
||||
|
||||
$(GOLANGCI_LINT):
|
||||
# Install golangci-lint. The configuration for it is in the .golangci.yml
|
||||
# file in the root of the repository
|
||||
echo ${GOPATH}
|
||||
curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh -s -- -b $(GOPATH)/bin v1.17.1
|
||||
|
||||
$(GOFUZZBUILD):
|
||||
cd / && go get -u github.com/dvyukov/go-fuzz/go-fuzz-build
|
||||
|
||||
$(GOFUZZ):
|
||||
cd / && go get -u github.com/dvyukov/go-fuzz/go-fuzz github.com/dvyukov/go-fuzz/go-fuzz-dep
|
||||
@ -0,0 +1,244 @@
|
||||
# SemVer
|
||||
|
||||
The `semver` package provides the ability to work with [Semantic Versions](http://semver.org) in Go. Specifically it provides the ability to:
|
||||
|
||||
* Parse semantic versions
|
||||
* Sort semantic versions
|
||||
* Check if a semantic version fits within a set of constraints
|
||||
* Optionally work with a `v` prefix
|
||||
|
||||
[](https://masterminds.github.io/stability/active.html)
|
||||
[](https://github.com/Masterminds/semver/actions)
|
||||
[](https://pkg.go.dev/github.com/Masterminds/semver/v3)
|
||||
[](https://goreportcard.com/report/github.com/Masterminds/semver)
|
||||
|
||||
If you are looking for a command line tool for version comparisons please see
|
||||
[vert](https://github.com/Masterminds/vert) which uses this library.
|
||||
|
||||
## Package Versions
|
||||
|
||||
There are three major versions fo the `semver` package.
|
||||
|
||||
* 3.x.x is the new stable and active version. This version is focused on constraint
|
||||
compatibility for range handling in other tools from other languages. It has
|
||||
a similar API to the v1 releases. The development of this version is on the master
|
||||
branch. The documentation for this version is below.
|
||||
* 2.x was developed primarily for [dep](https://github.com/golang/dep). There are
|
||||
no tagged releases and the development was performed by [@sdboyer](https://github.com/sdboyer).
|
||||
There are API breaking changes from v1. This version lives on the [2.x branch](https://github.com/Masterminds/semver/tree/2.x).
|
||||
* 1.x.x is the most widely used version with numerous tagged releases. This is the
|
||||
previous stable and is still maintained for bug fixes. The development, to fix
|
||||
bugs, occurs on the release-1 branch. You can read the documentation [here](https://github.com/Masterminds/semver/blob/release-1/README.md).
|
||||
|
||||
## Parsing Semantic Versions
|
||||
|
||||
There are two functions that can parse semantic versions. The `StrictNewVersion`
|
||||
function only parses valid version 2 semantic versions as outlined in the
|
||||
specification. The `NewVersion` function attempts to coerce a version into a
|
||||
semantic version and parse it. For example, if there is a leading v or a version
|
||||
listed without all 3 parts (e.g. `v1.2`) it will attempt to coerce it into a valid
|
||||
semantic version (e.g., 1.2.0). In both cases a `Version` object is returned
|
||||
that can be sorted, compared, and used in constraints.
|
||||
|
||||
When parsing a version an error is returned if there is an issue parsing the
|
||||
version. For example,
|
||||
|
||||
v, err := semver.NewVersion("1.2.3-beta.1+build345")
|
||||
|
||||
The version object has methods to get the parts of the version, compare it to
|
||||
other versions, convert the version back into a string, and get the original
|
||||
string. Getting the original string is useful if the semantic version was coerced
|
||||
into a valid form.
|
||||
|
||||
## Sorting Semantic Versions
|
||||
|
||||
A set of versions can be sorted using the `sort` package from the standard library.
|
||||
For example,
|
||||
|
||||
```go
|
||||
raw := []string{"1.2.3", "1.0", "1.3", "2", "0.4.2",}
|
||||
vs := make([]*semver.Version, len(raw))
|
||||
for i, r := range raw {
|
||||
v, err := semver.NewVersion(r)
|
||||
if err != nil {
|
||||
t.Errorf("Error parsing version: %s", err)
|
||||
}
|
||||
|
||||
vs[i] = v
|
||||
}
|
||||
|
||||
sort.Sort(semver.Collection(vs))
|
||||
```
|
||||
|
||||
## Checking Version Constraints
|
||||
|
||||
There are two methods for comparing versions. One uses comparison methods on
|
||||
`Version` instances and the other uses `Constraints`. There are some important
|
||||
differences to notes between these two methods of comparison.
|
||||
|
||||
1. When two versions are compared using functions such as `Compare`, `LessThan`,
|
||||
and others it will follow the specification and always include prereleases
|
||||
within the comparison. It will provide an answer that is valid with the
|
||||
comparison section of the spec at https://semver.org/#spec-item-11
|
||||
2. When constraint checking is used for checks or validation it will follow a
|
||||
different set of rules that are common for ranges with tools like npm/js
|
||||
and Rust/Cargo. This includes considering prereleases to be invalid if the
|
||||
ranges does not include one. If you want to have it include pre-releases a
|
||||
simple solution is to include `-0` in your range.
|
||||
3. Constraint ranges can have some complex rules including the shorthand use of
|
||||
~ and ^. For more details on those see the options below.
|
||||
|
||||
There are differences between the two methods or checking versions because the
|
||||
comparison methods on `Version` follow the specification while comparison ranges
|
||||
are not part of the specification. Different packages and tools have taken it
|
||||
upon themselves to come up with range rules. This has resulted in differences.
|
||||
For example, npm/js and Cargo/Rust follow similar patterns while PHP has a
|
||||
different pattern for ^. The comparison features in this package follow the
|
||||
npm/js and Cargo/Rust lead because applications using it have followed similar
|
||||
patters with their versions.
|
||||
|
||||
Checking a version against version constraints is one of the most featureful
|
||||
parts of the package.
|
||||
|
||||
```go
|
||||
c, err := semver.NewConstraint(">= 1.2.3")
|
||||
if err != nil {
|
||||
// Handle constraint not being parsable.
|
||||
}
|
||||
|
||||
v, err := semver.NewVersion("1.3")
|
||||
if err != nil {
|
||||
// Handle version not being parsable.
|
||||
}
|
||||
// Check if the version meets the constraints. The a variable will be true.
|
||||
a := c.Check(v)
|
||||
```
|
||||
|
||||
### Basic Comparisons
|
||||
|
||||
There are two elements to the comparisons. First, a comparison string is a list
|
||||
of space or comma separated AND comparisons. These are then separated by || (OR)
|
||||
comparisons. For example, `">= 1.2 < 3.0.0 || >= 4.2.3"` is looking for a
|
||||
comparison that's greater than or equal to 1.2 and less than 3.0.0 or is
|
||||
greater than or equal to 4.2.3.
|
||||
|
||||
The basic comparisons are:
|
||||
|
||||
* `=`: equal (aliased to no operator)
|
||||
* `!=`: not equal
|
||||
* `>`: greater than
|
||||
* `<`: less than
|
||||
* `>=`: greater than or equal to
|
||||
* `<=`: less than or equal to
|
||||
|
||||
### Working With Prerelease Versions
|
||||
|
||||
Pre-releases, for those not familiar with them, are used for software releases
|
||||
prior to stable or generally available releases. Examples of prereleases include
|
||||
development, alpha, beta, and release candidate releases. A prerelease may be
|
||||
a version such as `1.2.3-beta.1` while the stable release would be `1.2.3`. In the
|
||||
order of precedence, prereleases come before their associated releases. In this
|
||||
example `1.2.3-beta.1 < 1.2.3`.
|
||||
|
||||
According to the Semantic Version specification prereleases may not be
|
||||
API compliant with their release counterpart. It says,
|
||||
|
||||
> A pre-release version indicates that the version is unstable and might not satisfy the intended compatibility requirements as denoted by its associated normal version.
|
||||
|
||||
SemVer comparisons using constraints without a prerelease comparator will skip
|
||||
prerelease versions. For example, `>=1.2.3` will skip prereleases when looking
|
||||
at a list of releases while `>=1.2.3-0` will evaluate and find prereleases.
|
||||
|
||||
The reason for the `0` as a pre-release version in the example comparison is
|
||||
because pre-releases can only contain ASCII alphanumerics and hyphens (along with
|
||||
`.` separators), per the spec. Sorting happens in ASCII sort order, again per the
|
||||
spec. The lowest character is a `0` in ASCII sort order
|
||||
(see an [ASCII Table](http://www.asciitable.com/))
|
||||
|
||||
Understanding ASCII sort ordering is important because A-Z comes before a-z. That
|
||||
means `>=1.2.3-BETA` will return `1.2.3-alpha`. What you might expect from case
|
||||
sensitivity doesn't apply here. This is due to ASCII sort ordering which is what
|
||||
the spec specifies.
|
||||
|
||||
### Hyphen Range Comparisons
|
||||
|
||||
There are multiple methods to handle ranges and the first is hyphens ranges.
|
||||
These look like:
|
||||
|
||||
* `1.2 - 1.4.5` which is equivalent to `>= 1.2 <= 1.4.5`
|
||||
* `2.3.4 - 4.5` which is equivalent to `>= 2.3.4 <= 4.5`
|
||||
|
||||
### Wildcards In Comparisons
|
||||
|
||||
The `x`, `X`, and `*` characters can be used as a wildcard character. This works
|
||||
for all comparison operators. When used on the `=` operator it falls
|
||||
back to the patch level comparison (see tilde below). For example,
|
||||
|
||||
* `1.2.x` is equivalent to `>= 1.2.0, < 1.3.0`
|
||||
* `>= 1.2.x` is equivalent to `>= 1.2.0`
|
||||
* `<= 2.x` is equivalent to `< 3`
|
||||
* `*` is equivalent to `>= 0.0.0`
|
||||
|
||||
### Tilde Range Comparisons (Patch)
|
||||
|
||||
The tilde (`~`) comparison operator is for patch level ranges when a minor
|
||||
version is specified and major level changes when the minor number is missing.
|
||||
For example,
|
||||
|
||||
* `~1.2.3` is equivalent to `>= 1.2.3, < 1.3.0`
|
||||
* `~1` is equivalent to `>= 1, < 2`
|
||||
* `~2.3` is equivalent to `>= 2.3, < 2.4`
|
||||
* `~1.2.x` is equivalent to `>= 1.2.0, < 1.3.0`
|
||||
* `~1.x` is equivalent to `>= 1, < 2`
|
||||
|
||||
### Caret Range Comparisons (Major)
|
||||
|
||||
The caret (`^`) comparison operator is for major level changes once a stable
|
||||
(1.0.0) release has occurred. Prior to a 1.0.0 release the minor versions acts
|
||||
as the API stability level. This is useful when comparisons of API versions as a
|
||||
major change is API breaking. For example,
|
||||
|
||||
* `^1.2.3` is equivalent to `>= 1.2.3, < 2.0.0`
|
||||
* `^1.2.x` is equivalent to `>= 1.2.0, < 2.0.0`
|
||||
* `^2.3` is equivalent to `>= 2.3, < 3`
|
||||
* `^2.x` is equivalent to `>= 2.0.0, < 3`
|
||||
* `^0.2.3` is equivalent to `>=0.2.3 <0.3.0`
|
||||
* `^0.2` is equivalent to `>=0.2.0 <0.3.0`
|
||||
* `^0.0.3` is equivalent to `>=0.0.3 <0.0.4`
|
||||
* `^0.0` is equivalent to `>=0.0.0 <0.1.0`
|
||||
* `^0` is equivalent to `>=0.0.0 <1.0.0`
|
||||
|
||||
## Validation
|
||||
|
||||
In addition to testing a version against a constraint, a version can be validated
|
||||
against a constraint. When validation fails a slice of errors containing why a
|
||||
version didn't meet the constraint is returned. For example,
|
||||
|
||||
```go
|
||||
c, err := semver.NewConstraint("<= 1.2.3, >= 1.4")
|
||||
if err != nil {
|
||||
// Handle constraint not being parseable.
|
||||
}
|
||||
|
||||
v, err := semver.NewVersion("1.3")
|
||||
if err != nil {
|
||||
// Handle version not being parseable.
|
||||
}
|
||||
|
||||
// Validate a version against a constraint.
|
||||
a, msgs := c.Validate(v)
|
||||
// a is false
|
||||
for _, m := range msgs {
|
||||
fmt.Println(m)
|
||||
|
||||
// Loops over the errors which would read
|
||||
// "1.3 is greater than 1.2.3"
|
||||
// "1.3 is less than 1.4"
|
||||
}
|
||||
```
|
||||
|
||||
## Contribute
|
||||
|
||||
If you find an issue or want to contribute please file an [issue](https://github.com/Masterminds/semver/issues)
|
||||
or [create a pull request](https://github.com/Masterminds/semver/pulls).
|
||||
@ -0,0 +1,24 @@
|
||||
package semver
|
||||
|
||||
// Collection is a collection of Version instances and implements the sort
|
||||
// interface. See the sort package for more details.
|
||||
// https://golang.org/pkg/sort/
|
||||
type Collection []*Version
|
||||
|
||||
// Len returns the length of a collection. The number of Version instances
|
||||
// on the slice.
|
||||
func (c Collection) Len() int {
|
||||
return len(c)
|
||||
}
|
||||
|
||||
// Less is needed for the sort interface to compare two Version objects on the
|
||||
// slice. If checks if one is less than the other.
|
||||
func (c Collection) Less(i, j int) bool {
|
||||
return c[i].LessThan(c[j])
|
||||
}
|
||||
|
||||
// Swap is needed for the sort interface to replace the Version objects
|
||||
// at two different positions in the slice.
|
||||
func (c Collection) Swap(i, j int) {
|
||||
c[i], c[j] = c[j], c[i]
|
||||
}
|
||||
@ -0,0 +1,594 @@
|
||||
package semver
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"errors"
|
||||
"fmt"
|
||||
"regexp"
|
||||
"strings"
|
||||
)
|
||||
|
||||
// Constraints is one or more constraint that a semantic version can be
|
||||
// checked against.
|
||||
type Constraints struct {
|
||||
constraints [][]*constraint
|
||||
}
|
||||
|
||||
// NewConstraint returns a Constraints instance that a Version instance can
|
||||
// be checked against. If there is a parse error it will be returned.
|
||||
func NewConstraint(c string) (*Constraints, error) {
|
||||
|
||||
// Rewrite - ranges into a comparison operation.
|
||||
c = rewriteRange(c)
|
||||
|
||||
ors := strings.Split(c, "||")
|
||||
or := make([][]*constraint, len(ors))
|
||||
for k, v := range ors {
|
||||
|
||||
// TODO: Find a way to validate and fetch all the constraints in a simpler form
|
||||
|
||||
// Validate the segment
|
||||
if !validConstraintRegex.MatchString(v) {
|
||||
return nil, fmt.Errorf("improper constraint: %s", v)
|
||||
}
|
||||
|
||||
cs := findConstraintRegex.FindAllString(v, -1)
|
||||
if cs == nil {
|
||||
cs = append(cs, v)
|
||||
}
|
||||
result := make([]*constraint, len(cs))
|
||||
for i, s := range cs {
|
||||
pc, err := parseConstraint(s)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
result[i] = pc
|
||||
}
|
||||
or[k] = result
|
||||
}
|
||||
|
||||
o := &Constraints{constraints: or}
|
||||
return o, nil
|
||||
}
|
||||
|
||||
// Check tests if a version satisfies the constraints.
|
||||
func (cs Constraints) Check(v *Version) bool {
|
||||
// TODO(mattfarina): For v4 of this library consolidate the Check and Validate
|
||||
// functions as the underlying functions make that possible now.
|
||||
// loop over the ORs and check the inner ANDs
|
||||
for _, o := range cs.constraints {
|
||||
joy := true
|
||||
for _, c := range o {
|
||||
if check, _ := c.check(v); !check {
|
||||
joy = false
|
||||
break
|
||||
}
|
||||
}
|
||||
|
||||
if joy {
|
||||
return true
|
||||
}
|
||||
}
|
||||
|
||||
return false
|
||||
}
|
||||
|
||||
// Validate checks if a version satisfies a constraint. If not a slice of
|
||||
// reasons for the failure are returned in addition to a bool.
|
||||
func (cs Constraints) Validate(v *Version) (bool, []error) {
|
||||
// loop over the ORs and check the inner ANDs
|
||||
var e []error
|
||||
|
||||
// Capture the prerelease message only once. When it happens the first time
|
||||
// this var is marked
|
||||
var prerelesase bool
|
||||
for _, o := range cs.constraints {
|
||||
joy := true
|
||||
for _, c := range o {
|
||||
// Before running the check handle the case there the version is
|
||||
// a prerelease and the check is not searching for prereleases.
|
||||
if c.con.pre == "" && v.pre != "" {
|
||||
if !prerelesase {
|
||||
em := fmt.Errorf("%s is a prerelease version and the constraint is only looking for release versions", v)
|
||||
e = append(e, em)
|
||||
prerelesase = true
|
||||
}
|
||||
joy = false
|
||||
|
||||
} else {
|
||||
|
||||
if _, err := c.check(v); err != nil {
|
||||
e = append(e, err)
|
||||
joy = false
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if joy {
|
||||
return true, []error{}
|
||||
}
|
||||
}
|
||||
|
||||
return false, e
|
||||
}
|
||||
|
||||
func (cs Constraints) String() string {
|
||||
buf := make([]string, len(cs.constraints))
|
||||
var tmp bytes.Buffer
|
||||
|
||||
for k, v := range cs.constraints {
|
||||
tmp.Reset()
|
||||
vlen := len(v)
|
||||
for kk, c := range v {
|
||||
tmp.WriteString(c.string())
|
||||
|
||||
// Space separate the AND conditions
|
||||
if vlen > 1 && kk < vlen-1 {
|
||||
tmp.WriteString(" ")
|
||||
}
|
||||
}
|
||||
buf[k] = tmp.String()
|
||||
}
|
||||
|
||||
return strings.Join(buf, " || ")
|
||||
}
|
||||
|
||||
// UnmarshalText implements the encoding.TextUnmarshaler interface.
|
||||
func (cs *Constraints) UnmarshalText(text []byte) error {
|
||||
temp, err := NewConstraint(string(text))
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
*cs = *temp
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// MarshalText implements the encoding.TextMarshaler interface.
|
||||
func (cs Constraints) MarshalText() ([]byte, error) {
|
||||
return []byte(cs.String()), nil
|
||||
}
|
||||
|
||||
var constraintOps map[string]cfunc
|
||||
var constraintRegex *regexp.Regexp
|
||||
var constraintRangeRegex *regexp.Regexp
|
||||
|
||||
// Used to find individual constraints within a multi-constraint string
|
||||
var findConstraintRegex *regexp.Regexp
|
||||
|
||||
// Used to validate an segment of ANDs is valid
|
||||
var validConstraintRegex *regexp.Regexp
|
||||
|
||||
const cvRegex string = `v?([0-9|x|X|\*]+)(\.[0-9|x|X|\*]+)?(\.[0-9|x|X|\*]+)?` +
|
||||
`(-([0-9A-Za-z\-]+(\.[0-9A-Za-z\-]+)*))?` +
|
||||
`(\+([0-9A-Za-z\-]+(\.[0-9A-Za-z\-]+)*))?`
|
||||
|
||||
func init() {
|
||||
constraintOps = map[string]cfunc{
|
||||
"": constraintTildeOrEqual,
|
||||
"=": constraintTildeOrEqual,
|
||||
"!=": constraintNotEqual,
|
||||
">": constraintGreaterThan,
|
||||
"<": constraintLessThan,
|
||||
">=": constraintGreaterThanEqual,
|
||||
"=>": constraintGreaterThanEqual,
|
||||
"<=": constraintLessThanEqual,
|
||||
"=<": constraintLessThanEqual,
|
||||
"~": constraintTilde,
|
||||
"~>": constraintTilde,
|
||||
"^": constraintCaret,
|
||||
}
|
||||
|
||||
ops := `=||!=|>|<|>=|=>|<=|=<|~|~>|\^`
|
||||
|
||||
constraintRegex = regexp.MustCompile(fmt.Sprintf(
|
||||
`^\s*(%s)\s*(%s)\s*$`,
|
||||
ops,
|
||||
cvRegex))
|
||||
|
||||
constraintRangeRegex = regexp.MustCompile(fmt.Sprintf(
|
||||
`\s*(%s)\s+-\s+(%s)\s*`,
|
||||
cvRegex, cvRegex))
|
||||
|
||||
findConstraintRegex = regexp.MustCompile(fmt.Sprintf(
|
||||
`(%s)\s*(%s)`,
|
||||
ops,
|
||||
cvRegex))
|
||||
|
||||
// The first time a constraint shows up will look slightly different from
|
||||
// future times it shows up due to a leading space or comma in a given
|
||||
// string.
|
||||
validConstraintRegex = regexp.MustCompile(fmt.Sprintf(
|
||||
`^(\s*(%s)\s*(%s)\s*)((?:\s+|,\s*)(%s)\s*(%s)\s*)*$`,
|
||||
ops,
|
||||
cvRegex,
|
||||
ops,
|
||||
cvRegex))
|
||||
}
|
||||
|
||||
// An individual constraint
|
||||
type constraint struct {
|
||||
// The version used in the constraint check. For example, if a constraint
|
||||
// is '<= 2.0.0' the con a version instance representing 2.0.0.
|
||||
con *Version
|
||||
|
||||
// The original parsed version (e.g., 4.x from != 4.x)
|
||||
orig string
|
||||
|
||||
// The original operator for the constraint
|
||||
origfunc string
|
||||
|
||||
// When an x is used as part of the version (e.g., 1.x)
|
||||
minorDirty bool
|
||||
dirty bool
|
||||
patchDirty bool
|
||||
}
|
||||
|
||||
// Check if a version meets the constraint
|
||||
func (c *constraint) check(v *Version) (bool, error) {
|
||||
return constraintOps[c.origfunc](v, c)
|
||||
}
|
||||
|
||||
// String prints an individual constraint into a string
|
||||
func (c *constraint) string() string {
|
||||
return c.origfunc + c.orig
|
||||
}
|
||||
|
||||
type cfunc func(v *Version, c *constraint) (bool, error)
|
||||
|
||||
func parseConstraint(c string) (*constraint, error) {
|
||||
if len(c) > 0 {
|
||||
m := constraintRegex.FindStringSubmatch(c)
|
||||
if m == nil {
|
||||
return nil, fmt.Errorf("improper constraint: %s", c)
|
||||
}
|
||||
|
||||
cs := &constraint{
|
||||
orig: m[2],
|
||||
origfunc: m[1],
|
||||
}
|
||||
|
||||
ver := m[2]
|
||||
minorDirty := false
|
||||
patchDirty := false
|
||||
dirty := false
|
||||
if isX(m[3]) || m[3] == "" {
|
||||
ver = fmt.Sprintf("0.0.0%s", m[6])
|
||||
dirty = true
|
||||
} else if isX(strings.TrimPrefix(m[4], ".")) || m[4] == "" {
|
||||
minorDirty = true
|
||||
dirty = true
|
||||
ver = fmt.Sprintf("%s.0.0%s", m[3], m[6])
|
||||
} else if isX(strings.TrimPrefix(m[5], ".")) || m[5] == "" {
|
||||
dirty = true
|
||||
patchDirty = true
|
||||
ver = fmt.Sprintf("%s%s.0%s", m[3], m[4], m[6])
|
||||
}
|
||||
|
||||
con, err := NewVersion(ver)
|
||||
if err != nil {
|
||||
|
||||
// The constraintRegex should catch any regex parsing errors. So,
|
||||
// we should never get here.
|
||||
return nil, errors.New("constraint Parser Error")
|
||||
}
|
||||
|
||||
cs.con = con
|
||||
cs.minorDirty = minorDirty
|
||||
cs.patchDirty = patchDirty
|
||||
cs.dirty = dirty
|
||||
|
||||
return cs, nil
|
||||
}
|
||||
|
||||
// The rest is the special case where an empty string was passed in which
|
||||
// is equivalent to * or >=0.0.0
|
||||
con, err := StrictNewVersion("0.0.0")
|
||||
if err != nil {
|
||||
|
||||
// The constraintRegex should catch any regex parsing errors. So,
|
||||
// we should never get here.
|
||||
return nil, errors.New("constraint Parser Error")
|
||||
}
|
||||
|
||||
cs := &constraint{
|
||||
con: con,
|
||||
orig: c,
|
||||
origfunc: "",
|
||||
minorDirty: false,
|
||||
patchDirty: false,
|
||||
dirty: true,
|
||||
}
|
||||
return cs, nil
|
||||
}
|
||||
|
||||
// Constraint functions
|
||||
func constraintNotEqual(v *Version, c *constraint) (bool, error) {
|
||||
if c.dirty {
|
||||
|
||||
// If there is a pre-release on the version but the constraint isn't looking
|
||||
// for them assume that pre-releases are not compatible. See issue 21 for
|
||||
// more details.
|
||||
if v.Prerelease() != "" && c.con.Prerelease() == "" {
|
||||
return false, fmt.Errorf("%s is a prerelease version and the constraint is only looking for release versions", v)
|
||||
}
|
||||
|
||||
if c.con.Major() != v.Major() {
|
||||
return true, nil
|
||||
}
|
||||
if c.con.Minor() != v.Minor() && !c.minorDirty {
|
||||
return true, nil
|
||||
} else if c.minorDirty {
|
||||
return false, fmt.Errorf("%s is equal to %s", v, c.orig)
|
||||
} else if c.con.Patch() != v.Patch() && !c.patchDirty {
|
||||
return true, nil
|
||||
} else if c.patchDirty {
|
||||
// Need to handle prereleases if present
|
||||
if v.Prerelease() != "" || c.con.Prerelease() != "" {
|
||||
eq := comparePrerelease(v.Prerelease(), c.con.Prerelease()) != 0
|
||||
if eq {
|
||||
return true, nil
|
||||
}
|
||||
return false, fmt.Errorf("%s is equal to %s", v, c.orig)
|
||||
}
|
||||
return false, fmt.Errorf("%s is equal to %s", v, c.orig)
|
||||
}
|
||||
}
|
||||
|
||||
eq := v.Equal(c.con)
|
||||
if eq {
|
||||
return false, fmt.Errorf("%s is equal to %s", v, c.orig)
|
||||
}
|
||||
|
||||
return true, nil
|
||||
}
|
||||
|
||||
func constraintGreaterThan(v *Version, c *constraint) (bool, error) {
|
||||
|
||||
// If there is a pre-release on the version but the constraint isn't looking
|
||||
// for them assume that pre-releases are not compatible. See issue 21 for
|
||||
// more details.
|
||||
if v.Prerelease() != "" && c.con.Prerelease() == "" {
|
||||
return false, fmt.Errorf("%s is a prerelease version and the constraint is only looking for release versions", v)
|
||||
}
|
||||
|
||||
var eq bool
|
||||
|
||||
if !c.dirty {
|
||||
eq = v.Compare(c.con) == 1
|
||||
if eq {
|
||||
return true, nil
|
||||
}
|
||||
return false, fmt.Errorf("%s is less than or equal to %s", v, c.orig)
|
||||
}
|
||||
|
||||
if v.Major() > c.con.Major() {
|
||||
return true, nil
|
||||
} else if v.Major() < c.con.Major() {
|
||||
return false, fmt.Errorf("%s is less than or equal to %s", v, c.orig)
|
||||
} else if c.minorDirty {
|
||||
// This is a range case such as >11. When the version is something like
|
||||
// 11.1.0 is it not > 11. For that we would need 12 or higher
|
||||
return false, fmt.Errorf("%s is less than or equal to %s", v, c.orig)
|
||||
} else if c.patchDirty {
|
||||
// This is for ranges such as >11.1. A version of 11.1.1 is not greater
|
||||
// which one of 11.2.1 is greater
|
||||
eq = v.Minor() > c.con.Minor()
|
||||
if eq {
|
||||
return true, nil
|
||||
}
|
||||
return false, fmt.Errorf("%s is less than or equal to %s", v, c.orig)
|
||||
}
|
||||
|
||||
// If we have gotten here we are not comparing pre-preleases and can use the
|
||||
// Compare function to accomplish that.
|
||||
eq = v.Compare(c.con) == 1
|
||||
if eq {
|
||||
return true, nil
|
||||
}
|
||||
return false, fmt.Errorf("%s is less than or equal to %s", v, c.orig)
|
||||
}
|
||||
|
||||
func constraintLessThan(v *Version, c *constraint) (bool, error) {
|
||||
// If there is a pre-release on the version but the constraint isn't looking
|
||||
// for them assume that pre-releases are not compatible. See issue 21 for
|
||||
// more details.
|
||||
if v.Prerelease() != "" && c.con.Prerelease() == "" {
|
||||
return false, fmt.Errorf("%s is a prerelease version and the constraint is only looking for release versions", v)
|
||||
}
|
||||
|
||||
eq := v.Compare(c.con) < 0
|
||||
if eq {
|
||||
return true, nil
|
||||
}
|
||||
return false, fmt.Errorf("%s is greater than or equal to %s", v, c.orig)
|
||||
}
|
||||
|
||||
func constraintGreaterThanEqual(v *Version, c *constraint) (bool, error) {
|
||||
|
||||
// If there is a pre-release on the version but the constraint isn't looking
|
||||
// for them assume that pre-releases are not compatible. See issue 21 for
|
||||
// more details.
|
||||
if v.Prerelease() != "" && c.con.Prerelease() == "" {
|
||||
return false, fmt.Errorf("%s is a prerelease version and the constraint is only looking for release versions", v)
|
||||
}
|
||||
|
||||
eq := v.Compare(c.con) >= 0
|
||||
if eq {
|
||||
return true, nil
|
||||
}
|
||||
return false, fmt.Errorf("%s is less than %s", v, c.orig)
|
||||
}
|
||||
|
||||
func constraintLessThanEqual(v *Version, c *constraint) (bool, error) {
|
||||
// If there is a pre-release on the version but the constraint isn't looking
|
||||
// for them assume that pre-releases are not compatible. See issue 21 for
|
||||
// more details.
|
||||
if v.Prerelease() != "" && c.con.Prerelease() == "" {
|
||||
return false, fmt.Errorf("%s is a prerelease version and the constraint is only looking for release versions", v)
|
||||
}
|
||||
|
||||
var eq bool
|
||||
|
||||
if !c.dirty {
|
||||
eq = v.Compare(c.con) <= 0
|
||||
if eq {
|
||||
return true, nil
|
||||
}
|
||||
return false, fmt.Errorf("%s is greater than %s", v, c.orig)
|
||||
}
|
||||
|
||||
if v.Major() > c.con.Major() {
|
||||
return false, fmt.Errorf("%s is greater than %s", v, c.orig)
|
||||
} else if v.Major() == c.con.Major() && v.Minor() > c.con.Minor() && !c.minorDirty {
|
||||
return false, fmt.Errorf("%s is greater than %s", v, c.orig)
|
||||
}
|
||||
|
||||
return true, nil
|
||||
}
|
||||
|
||||
// ~*, ~>* --> >= 0.0.0 (any)
|
||||
// ~2, ~2.x, ~2.x.x, ~>2, ~>2.x ~>2.x.x --> >=2.0.0, <3.0.0
|
||||
// ~2.0, ~2.0.x, ~>2.0, ~>2.0.x --> >=2.0.0, <2.1.0
|
||||
// ~1.2, ~1.2.x, ~>1.2, ~>1.2.x --> >=1.2.0, <1.3.0
|
||||
// ~1.2.3, ~>1.2.3 --> >=1.2.3, <1.3.0
|
||||
// ~1.2.0, ~>1.2.0 --> >=1.2.0, <1.3.0
|
||||
func constraintTilde(v *Version, c *constraint) (bool, error) {
|
||||
// If there is a pre-release on the version but the constraint isn't looking
|
||||
// for them assume that pre-releases are not compatible. See issue 21 for
|
||||
// more details.
|
||||
if v.Prerelease() != "" && c.con.Prerelease() == "" {
|
||||
return false, fmt.Errorf("%s is a prerelease version and the constraint is only looking for release versions", v)
|
||||
}
|
||||
|
||||
if v.LessThan(c.con) {
|
||||
return false, fmt.Errorf("%s is less than %s", v, c.orig)
|
||||
}
|
||||
|
||||
// ~0.0.0 is a special case where all constraints are accepted. It's
|
||||
// equivalent to >= 0.0.0.
|
||||
if c.con.Major() == 0 && c.con.Minor() == 0 && c.con.Patch() == 0 &&
|
||||
!c.minorDirty && !c.patchDirty {
|
||||
return true, nil
|
||||
}
|
||||
|
||||
if v.Major() != c.con.Major() {
|
||||
return false, fmt.Errorf("%s does not have same major version as %s", v, c.orig)
|
||||
}
|
||||
|
||||
if v.Minor() != c.con.Minor() && !c.minorDirty {
|
||||
return false, fmt.Errorf("%s does not have same major and minor version as %s", v, c.orig)
|
||||
}
|
||||
|
||||
return true, nil
|
||||
}
|
||||
|
||||
// When there is a .x (dirty) status it automatically opts in to ~. Otherwise
|
||||
// it's a straight =
|
||||
func constraintTildeOrEqual(v *Version, c *constraint) (bool, error) {
|
||||
// If there is a pre-release on the version but the constraint isn't looking
|
||||
// for them assume that pre-releases are not compatible. See issue 21 for
|
||||
// more details.
|
||||
if v.Prerelease() != "" && c.con.Prerelease() == "" {
|
||||
return false, fmt.Errorf("%s is a prerelease version and the constraint is only looking for release versions", v)
|
||||
}
|
||||
|
||||
if c.dirty {
|
||||
return constraintTilde(v, c)
|
||||
}
|
||||
|
||||
eq := v.Equal(c.con)
|
||||
if eq {
|
||||
return true, nil
|
||||
}
|
||||
|
||||
return false, fmt.Errorf("%s is not equal to %s", v, c.orig)
|
||||
}
|
||||
|
||||
// ^* --> (any)
|
||||
// ^1.2.3 --> >=1.2.3 <2.0.0
|
||||
// ^1.2 --> >=1.2.0 <2.0.0
|
||||
// ^1 --> >=1.0.0 <2.0.0
|
||||
// ^0.2.3 --> >=0.2.3 <0.3.0
|
||||
// ^0.2 --> >=0.2.0 <0.3.0
|
||||
// ^0.0.3 --> >=0.0.3 <0.0.4
|
||||
// ^0.0 --> >=0.0.0 <0.1.0
|
||||
// ^0 --> >=0.0.0 <1.0.0
|
||||
func constraintCaret(v *Version, c *constraint) (bool, error) {
|
||||
// If there is a pre-release on the version but the constraint isn't looking
|
||||
// for them assume that pre-releases are not compatible. See issue 21 for
|
||||
// more details.
|
||||
if v.Prerelease() != "" && c.con.Prerelease() == "" {
|
||||
return false, fmt.Errorf("%s is a prerelease version and the constraint is only looking for release versions", v)
|
||||
}
|
||||
|
||||
// This less than handles prereleases
|
||||
if v.LessThan(c.con) {
|
||||
return false, fmt.Errorf("%s is less than %s", v, c.orig)
|
||||
}
|
||||
|
||||
var eq bool
|
||||
|
||||
// ^ when the major > 0 is >=x.y.z < x+1
|
||||
if c.con.Major() > 0 || c.minorDirty {
|
||||
|
||||
// ^ has to be within a major range for > 0. Everything less than was
|
||||
// filtered out with the LessThan call above. This filters out those
|
||||
// that greater but not within the same major range.
|
||||
eq = v.Major() == c.con.Major()
|
||||
if eq {
|
||||
return true, nil
|
||||
}
|
||||
return false, fmt.Errorf("%s does not have same major version as %s", v, c.orig)
|
||||
}
|
||||
|
||||
// ^ when the major is 0 and minor > 0 is >=0.y.z < 0.y+1
|
||||
if c.con.Major() == 0 && v.Major() > 0 {
|
||||
return false, fmt.Errorf("%s does not have same major version as %s", v, c.orig)
|
||||
}
|
||||
// If the con Minor is > 0 it is not dirty
|
||||
if c.con.Minor() > 0 || c.patchDirty {
|
||||
eq = v.Minor() == c.con.Minor()
|
||||
if eq {
|
||||
return true, nil
|
||||
}
|
||||
return false, fmt.Errorf("%s does not have same minor version as %s. Expected minor versions to match when constraint major version is 0", v, c.orig)
|
||||
}
|
||||
// ^ when the minor is 0 and minor > 0 is =0.0.z
|
||||
if c.con.Minor() == 0 && v.Minor() > 0 {
|
||||
return false, fmt.Errorf("%s does not have same minor version as %s", v, c.orig)
|
||||
}
|
||||
|
||||
// At this point the major is 0 and the minor is 0 and not dirty. The patch
|
||||
// is not dirty so we need to check if they are equal. If they are not equal
|
||||
eq = c.con.Patch() == v.Patch()
|
||||
if eq {
|
||||
return true, nil
|
||||
}
|
||||
return false, fmt.Errorf("%s does not equal %s. Expect version and constraint to equal when major and minor versions are 0", v, c.orig)
|
||||
}
|
||||
|
||||
func isX(x string) bool {
|
||||
switch x {
|
||||
case "x", "*", "X":
|
||||
return true
|
||||
default:
|
||||
return false
|
||||
}
|
||||
}
|
||||
|
||||
func rewriteRange(i string) string {
|
||||
m := constraintRangeRegex.FindAllStringSubmatch(i, -1)
|
||||
if m == nil {
|
||||
return i
|
||||
}
|
||||
o := i
|
||||
for _, v := range m {
|
||||
t := fmt.Sprintf(">= %s, <= %s", v[1], v[11])
|
||||
o = strings.Replace(o, v[0], t, 1)
|
||||
}
|
||||
|
||||
return o
|
||||
}
|
||||
@ -0,0 +1,184 @@
|
||||
/*
|
||||
Package semver provides the ability to work with Semantic Versions (http://semver.org) in Go.
|
||||
|
||||
Specifically it provides the ability to:
|
||||
|
||||
- Parse semantic versions
|
||||
- Sort semantic versions
|
||||
- Check if a semantic version fits within a set of constraints
|
||||
- Optionally work with a `v` prefix
|
||||
|
||||
# Parsing Semantic Versions
|
||||
|
||||
There are two functions that can parse semantic versions. The `StrictNewVersion`
|
||||
function only parses valid version 2 semantic versions as outlined in the
|
||||
specification. The `NewVersion` function attempts to coerce a version into a
|
||||
semantic version and parse it. For example, if there is a leading v or a version
|
||||
listed without all 3 parts (e.g. 1.2) it will attempt to coerce it into a valid
|
||||
semantic version (e.g., 1.2.0). In both cases a `Version` object is returned
|
||||
that can be sorted, compared, and used in constraints.
|
||||
|
||||
When parsing a version an optional error can be returned if there is an issue
|
||||
parsing the version. For example,
|
||||
|
||||
v, err := semver.NewVersion("1.2.3-beta.1+b345")
|
||||
|
||||
The version object has methods to get the parts of the version, compare it to
|
||||
other versions, convert the version back into a string, and get the original
|
||||
string. For more details please see the documentation
|
||||
at https://godoc.org/github.com/Masterminds/semver.
|
||||
|
||||
# Sorting Semantic Versions
|
||||
|
||||
A set of versions can be sorted using the `sort` package from the standard library.
|
||||
For example,
|
||||
|
||||
raw := []string{"1.2.3", "1.0", "1.3", "2", "0.4.2",}
|
||||
vs := make([]*semver.Version, len(raw))
|
||||
for i, r := range raw {
|
||||
v, err := semver.NewVersion(r)
|
||||
if err != nil {
|
||||
t.Errorf("Error parsing version: %s", err)
|
||||
}
|
||||
|
||||
vs[i] = v
|
||||
}
|
||||
|
||||
sort.Sort(semver.Collection(vs))
|
||||
|
||||
# Checking Version Constraints and Comparing Versions
|
||||
|
||||
There are two methods for comparing versions. One uses comparison methods on
|
||||
`Version` instances and the other is using Constraints. There are some important
|
||||
differences to notes between these two methods of comparison.
|
||||
|
||||
1. When two versions are compared using functions such as `Compare`, `LessThan`,
|
||||
and others it will follow the specification and always include prereleases
|
||||
within the comparison. It will provide an answer valid with the comparison
|
||||
spec section at https://semver.org/#spec-item-11
|
||||
2. When constraint checking is used for checks or validation it will follow a
|
||||
different set of rules that are common for ranges with tools like npm/js
|
||||
and Rust/Cargo. This includes considering prereleases to be invalid if the
|
||||
ranges does not include on. If you want to have it include pre-releases a
|
||||
simple solution is to include `-0` in your range.
|
||||
3. Constraint ranges can have some complex rules including the shorthard use of
|
||||
~ and ^. For more details on those see the options below.
|
||||
|
||||
There are differences between the two methods or checking versions because the
|
||||
comparison methods on `Version` follow the specification while comparison ranges
|
||||
are not part of the specification. Different packages and tools have taken it
|
||||
upon themselves to come up with range rules. This has resulted in differences.
|
||||
For example, npm/js and Cargo/Rust follow similar patterns which PHP has a
|
||||
different pattern for ^. The comparison features in this package follow the
|
||||
npm/js and Cargo/Rust lead because applications using it have followed similar
|
||||
patters with their versions.
|
||||
|
||||
Checking a version against version constraints is one of the most featureful
|
||||
parts of the package.
|
||||
|
||||
c, err := semver.NewConstraint(">= 1.2.3")
|
||||
if err != nil {
|
||||
// Handle constraint not being parsable.
|
||||
}
|
||||
|
||||
v, err := semver.NewVersion("1.3")
|
||||
if err != nil {
|
||||
// Handle version not being parsable.
|
||||
}
|
||||
// Check if the version meets the constraints. The a variable will be true.
|
||||
a := c.Check(v)
|
||||
|
||||
# Basic Comparisons
|
||||
|
||||
There are two elements to the comparisons. First, a comparison string is a list
|
||||
of comma or space separated AND comparisons. These are then separated by || (OR)
|
||||
comparisons. For example, `">= 1.2 < 3.0.0 || >= 4.2.3"` is looking for a
|
||||
comparison that's greater than or equal to 1.2 and less than 3.0.0 or is
|
||||
greater than or equal to 4.2.3. This can also be written as
|
||||
`">= 1.2, < 3.0.0 || >= 4.2.3"`
|
||||
|
||||
The basic comparisons are:
|
||||
|
||||
- `=`: equal (aliased to no operator)
|
||||
- `!=`: not equal
|
||||
- `>`: greater than
|
||||
- `<`: less than
|
||||
- `>=`: greater than or equal to
|
||||
- `<=`: less than or equal to
|
||||
|
||||
# Hyphen Range Comparisons
|
||||
|
||||
There are multiple methods to handle ranges and the first is hyphens ranges.
|
||||
These look like:
|
||||
|
||||
- `1.2 - 1.4.5` which is equivalent to `>= 1.2, <= 1.4.5`
|
||||
- `2.3.4 - 4.5` which is equivalent to `>= 2.3.4 <= 4.5`
|
||||
|
||||
# Wildcards In Comparisons
|
||||
|
||||
The `x`, `X`, and `*` characters can be used as a wildcard character. This works
|
||||
for all comparison operators. When used on the `=` operator it falls
|
||||
back to the tilde operation. For example,
|
||||
|
||||
- `1.2.x` is equivalent to `>= 1.2.0 < 1.3.0`
|
||||
- `>= 1.2.x` is equivalent to `>= 1.2.0`
|
||||
- `<= 2.x` is equivalent to `<= 3`
|
||||
- `*` is equivalent to `>= 0.0.0`
|
||||
|
||||
Tilde Range Comparisons (Patch)
|
||||
|
||||
The tilde (`~`) comparison operator is for patch level ranges when a minor
|
||||
version is specified and major level changes when the minor number is missing.
|
||||
For example,
|
||||
|
||||
- `~1.2.3` is equivalent to `>= 1.2.3 < 1.3.0`
|
||||
- `~1` is equivalent to `>= 1, < 2`
|
||||
- `~2.3` is equivalent to `>= 2.3 < 2.4`
|
||||
- `~1.2.x` is equivalent to `>= 1.2.0 < 1.3.0`
|
||||
- `~1.x` is equivalent to `>= 1 < 2`
|
||||
|
||||
Caret Range Comparisons (Major)
|
||||
|
||||
The caret (`^`) comparison operator is for major level changes once a stable
|
||||
(1.0.0) release has occurred. Prior to a 1.0.0 release the minor versions acts
|
||||
as the API stability level. This is useful when comparisons of API versions as a
|
||||
major change is API breaking. For example,
|
||||
|
||||
- `^1.2.3` is equivalent to `>= 1.2.3, < 2.0.0`
|
||||
- `^1.2.x` is equivalent to `>= 1.2.0, < 2.0.0`
|
||||
- `^2.3` is equivalent to `>= 2.3, < 3`
|
||||
- `^2.x` is equivalent to `>= 2.0.0, < 3`
|
||||
- `^0.2.3` is equivalent to `>=0.2.3 <0.3.0`
|
||||
- `^0.2` is equivalent to `>=0.2.0 <0.3.0`
|
||||
- `^0.0.3` is equivalent to `>=0.0.3 <0.0.4`
|
||||
- `^0.0` is equivalent to `>=0.0.0 <0.1.0`
|
||||
- `^0` is equivalent to `>=0.0.0 <1.0.0`
|
||||
|
||||
# Validation
|
||||
|
||||
In addition to testing a version against a constraint, a version can be validated
|
||||
against a constraint. When validation fails a slice of errors containing why a
|
||||
version didn't meet the constraint is returned. For example,
|
||||
|
||||
c, err := semver.NewConstraint("<= 1.2.3, >= 1.4")
|
||||
if err != nil {
|
||||
// Handle constraint not being parseable.
|
||||
}
|
||||
|
||||
v, _ := semver.NewVersion("1.3")
|
||||
if err != nil {
|
||||
// Handle version not being parseable.
|
||||
}
|
||||
|
||||
// Validate a version against a constraint.
|
||||
a, msgs := c.Validate(v)
|
||||
// a is false
|
||||
for _, m := range msgs {
|
||||
fmt.Println(m)
|
||||
|
||||
// Loops over the errors which would read
|
||||
// "1.3 is greater than 1.2.3"
|
||||
// "1.3 is less than 1.4"
|
||||
}
|
||||
*/
|
||||
package semver
|
||||
@ -0,0 +1,22 @@
|
||||
// +build gofuzz
|
||||
|
||||
package semver
|
||||
|
||||
func Fuzz(data []byte) int {
|
||||
d := string(data)
|
||||
|
||||
// Test NewVersion
|
||||
_, _ = NewVersion(d)
|
||||
|
||||
// Test StrictNewVersion
|
||||
_, _ = StrictNewVersion(d)
|
||||
|
||||
// Test NewConstraint
|
||||
_, _ = NewConstraint(d)
|
||||
|
||||
// The return value should be 0 normally, 1 if the priority in future tests
|
||||
// should be increased, and -1 if future tests should skip passing in that
|
||||
// data. We do not have a reason to change priority so 0 is always returned.
|
||||
// There are example tests that do this.
|
||||
return 0
|
||||
}
|
||||
@ -0,0 +1,639 @@
|
||||
package semver
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"database/sql/driver"
|
||||
"encoding/json"
|
||||
"errors"
|
||||
"fmt"
|
||||
"regexp"
|
||||
"strconv"
|
||||
"strings"
|
||||
)
|
||||
|
||||
// The compiled version of the regex created at init() is cached here so it
|
||||
// only needs to be created once.
|
||||
var versionRegex *regexp.Regexp
|
||||
|
||||
var (
|
||||
// ErrInvalidSemVer is returned a version is found to be invalid when
|
||||
// being parsed.
|
||||
ErrInvalidSemVer = errors.New("Invalid Semantic Version")
|
||||
|
||||
// ErrEmptyString is returned when an empty string is passed in for parsing.
|
||||
ErrEmptyString = errors.New("Version string empty")
|
||||
|
||||
// ErrInvalidCharacters is returned when invalid characters are found as
|
||||
// part of a version
|
||||
ErrInvalidCharacters = errors.New("Invalid characters in version")
|
||||
|
||||
// ErrSegmentStartsZero is returned when a version segment starts with 0.
|
||||
// This is invalid in SemVer.
|
||||
ErrSegmentStartsZero = errors.New("Version segment starts with 0")
|
||||
|
||||
// ErrInvalidMetadata is returned when the metadata is an invalid format
|
||||
ErrInvalidMetadata = errors.New("Invalid Metadata string")
|
||||
|
||||
// ErrInvalidPrerelease is returned when the pre-release is an invalid format
|
||||
ErrInvalidPrerelease = errors.New("Invalid Prerelease string")
|
||||
)
|
||||
|
||||
// semVerRegex is the regular expression used to parse a semantic version.
|
||||
const semVerRegex string = `v?([0-9]+)(\.[0-9]+)?(\.[0-9]+)?` +
|
||||
`(-([0-9A-Za-z\-]+(\.[0-9A-Za-z\-]+)*))?` +
|
||||
`(\+([0-9A-Za-z\-]+(\.[0-9A-Za-z\-]+)*))?`
|
||||
|
||||
// Version represents a single semantic version.
|
||||
type Version struct {
|
||||
major, minor, patch uint64
|
||||
pre string
|
||||
metadata string
|
||||
original string
|
||||
}
|
||||
|
||||
func init() {
|
||||
versionRegex = regexp.MustCompile("^" + semVerRegex + "$")
|
||||
}
|
||||
|
||||
const (
|
||||
num string = "0123456789"
|
||||
allowed string = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-" + num
|
||||
)
|
||||
|
||||
// StrictNewVersion parses a given version and returns an instance of Version or
|
||||
// an error if unable to parse the version. Only parses valid semantic versions.
|
||||
// Performs checking that can find errors within the version.
|
||||
// If you want to coerce a version such as 1 or 1.2 and parse it as the 1.x
|
||||
// releases of semver did, use the NewVersion() function.
|
||||
func StrictNewVersion(v string) (*Version, error) {
|
||||
// Parsing here does not use RegEx in order to increase performance and reduce
|
||||
// allocations.
|
||||
|
||||
if len(v) == 0 {
|
||||
return nil, ErrEmptyString
|
||||
}
|
||||
|
||||
// Split the parts into [0]major, [1]minor, and [2]patch,prerelease,build
|
||||
parts := strings.SplitN(v, ".", 3)
|
||||
if len(parts) != 3 {
|
||||
return nil, ErrInvalidSemVer
|
||||
}
|
||||
|
||||
sv := &Version{
|
||||
original: v,
|
||||
}
|
||||
|
||||
// check for prerelease or build metadata
|
||||
var extra []string
|
||||
if strings.ContainsAny(parts[2], "-+") {
|
||||
// Start with the build metadata first as it needs to be on the right
|
||||
extra = strings.SplitN(parts[2], "+", 2)
|
||||
if len(extra) > 1 {
|
||||
// build metadata found
|
||||
sv.metadata = extra[1]
|
||||
parts[2] = extra[0]
|
||||
}
|
||||
|
||||
extra = strings.SplitN(parts[2], "-", 2)
|
||||
if len(extra) > 1 {
|
||||
// prerelease found
|
||||
sv.pre = extra[1]
|
||||
parts[2] = extra[0]
|
||||
}
|
||||
}
|
||||
|
||||
// Validate the number segments are valid. This includes only having positive
|
||||
// numbers and no leading 0's.
|
||||
for _, p := range parts {
|
||||
if !containsOnly(p, num) {
|
||||
return nil, ErrInvalidCharacters
|
||||
}
|
||||
|
||||
if len(p) > 1 && p[0] == '0' {
|
||||
return nil, ErrSegmentStartsZero
|
||||
}
|
||||
}
|
||||
|
||||
// Extract the major, minor, and patch elements onto the returned Version
|
||||
var err error
|
||||
sv.major, err = strconv.ParseUint(parts[0], 10, 64)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
sv.minor, err = strconv.ParseUint(parts[1], 10, 64)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
sv.patch, err = strconv.ParseUint(parts[2], 10, 64)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
// No prerelease or build metadata found so returning now as a fastpath.
|
||||
if sv.pre == "" && sv.metadata == "" {
|
||||
return sv, nil
|
||||
}
|
||||
|
||||
if sv.pre != "" {
|
||||
if err = validatePrerelease(sv.pre); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
|
||||
if sv.metadata != "" {
|
||||
if err = validateMetadata(sv.metadata); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
|
||||
return sv, nil
|
||||
}
|
||||
|
||||
// NewVersion parses a given version and returns an instance of Version or
|
||||
// an error if unable to parse the version. If the version is SemVer-ish it
|
||||
// attempts to convert it to SemVer. If you want to validate it was a strict
|
||||
// semantic version at parse time see StrictNewVersion().
|
||||
func NewVersion(v string) (*Version, error) {
|
||||
m := versionRegex.FindStringSubmatch(v)
|
||||
if m == nil {
|
||||
return nil, ErrInvalidSemVer
|
||||
}
|
||||
|
||||
sv := &Version{
|
||||
metadata: m[8],
|
||||
pre: m[5],
|
||||
original: v,
|
||||
}
|
||||
|
||||
var err error
|
||||
sv.major, err = strconv.ParseUint(m[1], 10, 64)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("Error parsing version segment: %s", err)
|
||||
}
|
||||
|
||||
if m[2] != "" {
|
||||
sv.minor, err = strconv.ParseUint(strings.TrimPrefix(m[2], "."), 10, 64)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("Error parsing version segment: %s", err)
|
||||
}
|
||||
} else {
|
||||
sv.minor = 0
|
||||
}
|
||||
|
||||
if m[3] != "" {
|
||||
sv.patch, err = strconv.ParseUint(strings.TrimPrefix(m[3], "."), 10, 64)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("Error parsing version segment: %s", err)
|
||||
}
|
||||
} else {
|
||||
sv.patch = 0
|
||||
}
|
||||
|
||||
// Perform some basic due diligence on the extra parts to ensure they are
|
||||
// valid.
|
||||
|
||||
if sv.pre != "" {
|
||||
if err = validatePrerelease(sv.pre); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
|
||||
if sv.metadata != "" {
|
||||
if err = validateMetadata(sv.metadata); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
|
||||
return sv, nil
|
||||
}
|
||||
|
||||
// New creates a new instance of Version with each of the parts passed in as
|
||||
// arguments instead of parsing a version string.
|
||||
func New(major, minor, patch uint64, pre, metadata string) *Version {
|
||||
v := Version{
|
||||
major: major,
|
||||
minor: minor,
|
||||
patch: patch,
|
||||
pre: pre,
|
||||
metadata: metadata,
|
||||
original: "",
|
||||
}
|
||||
|
||||
v.original = v.String()
|
||||
|
||||
return &v
|
||||
}
|
||||
|
||||
// MustParse parses a given version and panics on error.
|
||||
func MustParse(v string) *Version {
|
||||
sv, err := NewVersion(v)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return sv
|
||||
}
|
||||
|
||||
// String converts a Version object to a string.
|
||||
// Note, if the original version contained a leading v this version will not.
|
||||
// See the Original() method to retrieve the original value. Semantic Versions
|
||||
// don't contain a leading v per the spec. Instead it's optional on
|
||||
// implementation.
|
||||
func (v Version) String() string {
|
||||
var buf bytes.Buffer
|
||||
|
||||
fmt.Fprintf(&buf, "%d.%d.%d", v.major, v.minor, v.patch)
|
||||
if v.pre != "" {
|
||||
fmt.Fprintf(&buf, "-%s", v.pre)
|
||||
}
|
||||
if v.metadata != "" {
|
||||
fmt.Fprintf(&buf, "+%s", v.metadata)
|
||||
}
|
||||
|
||||
return buf.String()
|
||||
}
|
||||
|
||||
// Original returns the original value passed in to be parsed.
|
||||
func (v *Version) Original() string {
|
||||
return v.original
|
||||
}
|
||||
|
||||
// Major returns the major version.
|
||||
func (v Version) Major() uint64 {
|
||||
return v.major
|
||||
}
|
||||
|
||||
// Minor returns the minor version.
|
||||
func (v Version) Minor() uint64 {
|
||||
return v.minor
|
||||
}
|
||||
|
||||
// Patch returns the patch version.
|
||||
func (v Version) Patch() uint64 {
|
||||
return v.patch
|
||||
}
|
||||
|
||||
// Prerelease returns the pre-release version.
|
||||
func (v Version) Prerelease() string {
|
||||
return v.pre
|
||||
}
|
||||
|
||||
// Metadata returns the metadata on the version.
|
||||
func (v Version) Metadata() string {
|
||||
return v.metadata
|
||||
}
|
||||
|
||||
// originalVPrefix returns the original 'v' prefix if any.
|
||||
func (v Version) originalVPrefix() string {
|
||||
// Note, only lowercase v is supported as a prefix by the parser.
|
||||
if v.original != "" && v.original[:1] == "v" {
|
||||
return v.original[:1]
|
||||
}
|
||||
return ""
|
||||
}
|
||||
|
||||
// IncPatch produces the next patch version.
|
||||
// If the current version does not have prerelease/metadata information,
|
||||
// it unsets metadata and prerelease values, increments patch number.
|
||||
// If the current version has any of prerelease or metadata information,
|
||||
// it unsets both values and keeps current patch value
|
||||
func (v Version) IncPatch() Version {
|
||||
vNext := v
|
||||
// according to http://semver.org/#spec-item-9
|
||||
// Pre-release versions have a lower precedence than the associated normal version.
|
||||
// according to http://semver.org/#spec-item-10
|
||||
// Build metadata SHOULD be ignored when determining version precedence.
|
||||
if v.pre != "" {
|
||||
vNext.metadata = ""
|
||||
vNext.pre = ""
|
||||
} else {
|
||||
vNext.metadata = ""
|
||||
vNext.pre = ""
|
||||
vNext.patch = v.patch + 1
|
||||
}
|
||||
vNext.original = v.originalVPrefix() + "" + vNext.String()
|
||||
return vNext
|
||||
}
|
||||
|
||||
// IncMinor produces the next minor version.
|
||||
// Sets patch to 0.
|
||||
// Increments minor number.
|
||||
// Unsets metadata.
|
||||
// Unsets prerelease status.
|
||||
func (v Version) IncMinor() Version {
|
||||
vNext := v
|
||||
vNext.metadata = ""
|
||||
vNext.pre = ""
|
||||
vNext.patch = 0
|
||||
vNext.minor = v.minor + 1
|
||||
vNext.original = v.originalVPrefix() + "" + vNext.String()
|
||||
return vNext
|
||||
}
|
||||
|
||||
// IncMajor produces the next major version.
|
||||
// Sets patch to 0.
|
||||
// Sets minor to 0.
|
||||
// Increments major number.
|
||||
// Unsets metadata.
|
||||
// Unsets prerelease status.
|
||||
func (v Version) IncMajor() Version {
|
||||
vNext := v
|
||||
vNext.metadata = ""
|
||||
vNext.pre = ""
|
||||
vNext.patch = 0
|
||||
vNext.minor = 0
|
||||
vNext.major = v.major + 1
|
||||
vNext.original = v.originalVPrefix() + "" + vNext.String()
|
||||
return vNext
|
||||
}
|
||||
|
||||
// SetPrerelease defines the prerelease value.
|
||||
// Value must not include the required 'hyphen' prefix.
|
||||
func (v Version) SetPrerelease(prerelease string) (Version, error) {
|
||||
vNext := v
|
||||
if len(prerelease) > 0 {
|
||||
if err := validatePrerelease(prerelease); err != nil {
|
||||
return vNext, err
|
||||
}
|
||||
}
|
||||
vNext.pre = prerelease
|
||||
vNext.original = v.originalVPrefix() + "" + vNext.String()
|
||||
return vNext, nil
|
||||
}
|
||||
|
||||
// SetMetadata defines metadata value.
|
||||
// Value must not include the required 'plus' prefix.
|
||||
func (v Version) SetMetadata(metadata string) (Version, error) {
|
||||
vNext := v
|
||||
if len(metadata) > 0 {
|
||||
if err := validateMetadata(metadata); err != nil {
|
||||
return vNext, err
|
||||
}
|
||||
}
|
||||
vNext.metadata = metadata
|
||||
vNext.original = v.originalVPrefix() + "" + vNext.String()
|
||||
return vNext, nil
|
||||
}
|
||||
|
||||
// LessThan tests if one version is less than another one.
|
||||
func (v *Version) LessThan(o *Version) bool {
|
||||
return v.Compare(o) < 0
|
||||
}
|
||||
|
||||
// GreaterThan tests if one version is greater than another one.
|
||||
func (v *Version) GreaterThan(o *Version) bool {
|
||||
return v.Compare(o) > 0
|
||||
}
|
||||
|
||||
// Equal tests if two versions are equal to each other.
|
||||
// Note, versions can be equal with different metadata since metadata
|
||||
// is not considered part of the comparable version.
|
||||
func (v *Version) Equal(o *Version) bool {
|
||||
return v.Compare(o) == 0
|
||||
}
|
||||
|
||||
// Compare compares this version to another one. It returns -1, 0, or 1 if
|
||||
// the version smaller, equal, or larger than the other version.
|
||||
//
|
||||
// Versions are compared by X.Y.Z. Build metadata is ignored. Prerelease is
|
||||
// lower than the version without a prerelease. Compare always takes into account
|
||||
// prereleases. If you want to work with ranges using typical range syntaxes that
|
||||
// skip prereleases if the range is not looking for them use constraints.
|
||||
func (v *Version) Compare(o *Version) int {
|
||||
// Compare the major, minor, and patch version for differences. If a
|
||||
// difference is found return the comparison.
|
||||
if d := compareSegment(v.Major(), o.Major()); d != 0 {
|
||||
return d
|
||||
}
|
||||
if d := compareSegment(v.Minor(), o.Minor()); d != 0 {
|
||||
return d
|
||||
}
|
||||
if d := compareSegment(v.Patch(), o.Patch()); d != 0 {
|
||||
return d
|
||||
}
|
||||
|
||||
// At this point the major, minor, and patch versions are the same.
|
||||
ps := v.pre
|
||||
po := o.Prerelease()
|
||||
|
||||
if ps == "" && po == "" {
|
||||
return 0
|
||||
}
|
||||
if ps == "" {
|
||||
return 1
|
||||
}
|
||||
if po == "" {
|
||||
return -1
|
||||
}
|
||||
|
||||
return comparePrerelease(ps, po)
|
||||
}
|
||||
|
||||
// UnmarshalJSON implements JSON.Unmarshaler interface.
|
||||
func (v *Version) UnmarshalJSON(b []byte) error {
|
||||
var s string
|
||||
if err := json.Unmarshal(b, &s); err != nil {
|
||||
return err
|
||||
}
|
||||
temp, err := NewVersion(s)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
v.major = temp.major
|
||||
v.minor = temp.minor
|
||||
v.patch = temp.patch
|
||||
v.pre = temp.pre
|
||||
v.metadata = temp.metadata
|
||||
v.original = temp.original
|
||||
return nil
|
||||
}
|
||||
|
||||
// MarshalJSON implements JSON.Marshaler interface.
|
||||
func (v Version) MarshalJSON() ([]byte, error) {
|
||||
return json.Marshal(v.String())
|
||||
}
|
||||
|
||||
// UnmarshalText implements the encoding.TextUnmarshaler interface.
|
||||
func (v *Version) UnmarshalText(text []byte) error {
|
||||
temp, err := NewVersion(string(text))
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
*v = *temp
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// MarshalText implements the encoding.TextMarshaler interface.
|
||||
func (v Version) MarshalText() ([]byte, error) {
|
||||
return []byte(v.String()), nil
|
||||
}
|
||||
|
||||
// Scan implements the SQL.Scanner interface.
|
||||
func (v *Version) Scan(value interface{}) error {
|
||||
var s string
|
||||
s, _ = value.(string)
|
||||
temp, err := NewVersion(s)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
v.major = temp.major
|
||||
v.minor = temp.minor
|
||||
v.patch = temp.patch
|
||||
v.pre = temp.pre
|
||||
v.metadata = temp.metadata
|
||||
v.original = temp.original
|
||||
return nil
|
||||
}
|
||||
|
||||
// Value implements the Driver.Valuer interface.
|
||||
func (v Version) Value() (driver.Value, error) {
|
||||
return v.String(), nil
|
||||
}
|
||||
|
||||
func compareSegment(v, o uint64) int {
|
||||
if v < o {
|
||||
return -1
|
||||
}
|
||||
if v > o {
|
||||
return 1
|
||||
}
|
||||
|
||||
return 0
|
||||
}
|
||||
|
||||
func comparePrerelease(v, o string) int {
|
||||
// split the prelease versions by their part. The separator, per the spec,
|
||||
// is a .
|
||||
sparts := strings.Split(v, ".")
|
||||
oparts := strings.Split(o, ".")
|
||||
|
||||
// Find the longer length of the parts to know how many loop iterations to
|
||||
// go through.
|
||||
slen := len(sparts)
|
||||
olen := len(oparts)
|
||||
|
||||
l := slen
|
||||
if olen > slen {
|
||||
l = olen
|
||||
}
|
||||
|
||||
// Iterate over each part of the prereleases to compare the differences.
|
||||
for i := 0; i < l; i++ {
|
||||
// Since the lentgh of the parts can be different we need to create
|
||||
// a placeholder. This is to avoid out of bounds issues.
|
||||
stemp := ""
|
||||
if i < slen {
|
||||
stemp = sparts[i]
|
||||
}
|
||||
|
||||
otemp := ""
|
||||
if i < olen {
|
||||
otemp = oparts[i]
|
||||
}
|
||||
|
||||
d := comparePrePart(stemp, otemp)
|
||||
if d != 0 {
|
||||
return d
|
||||
}
|
||||
}
|
||||
|
||||
// Reaching here means two versions are of equal value but have different
|
||||
// metadata (the part following a +). They are not identical in string form
|
||||
// but the version comparison finds them to be equal.
|
||||
return 0
|
||||
}
|
||||
|
||||
func comparePrePart(s, o string) int {
|
||||
// Fastpath if they are equal
|
||||
if s == o {
|
||||
return 0
|
||||
}
|
||||
|
||||
// When s or o are empty we can use the other in an attempt to determine
|
||||
// the response.
|
||||
if s == "" {
|
||||
if o != "" {
|
||||
return -1
|
||||
}
|
||||
return 1
|
||||
}
|
||||
|
||||
if o == "" {
|
||||
if s != "" {
|
||||
return 1
|
||||
}
|
||||
return -1
|
||||
}
|
||||
|
||||
// When comparing strings "99" is greater than "103". To handle
|
||||
// cases like this we need to detect numbers and compare them. According
|
||||
// to the semver spec, numbers are always positive. If there is a - at the
|
||||
// start like -99 this is to be evaluated as an alphanum. numbers always
|
||||
// have precedence over alphanum. Parsing as Uints because negative numbers
|
||||
// are ignored.
|
||||
|
||||
oi, n1 := strconv.ParseUint(o, 10, 64)
|
||||
si, n2 := strconv.ParseUint(s, 10, 64)
|
||||
|
||||
// The case where both are strings compare the strings
|
||||
if n1 != nil && n2 != nil {
|
||||
if s > o {
|
||||
return 1
|
||||
}
|
||||
return -1
|
||||
} else if n1 != nil {
|
||||
// o is a string and s is a number
|
||||
return -1
|
||||
} else if n2 != nil {
|
||||
// s is a string and o is a number
|
||||
return 1
|
||||
}
|
||||
// Both are numbers
|
||||
if si > oi {
|
||||
return 1
|
||||
}
|
||||
return -1
|
||||
}
|
||||
|
||||
// Like strings.ContainsAny but does an only instead of any.
|
||||
func containsOnly(s string, comp string) bool {
|
||||
return strings.IndexFunc(s, func(r rune) bool {
|
||||
return !strings.ContainsRune(comp, r)
|
||||
}) == -1
|
||||
}
|
||||
|
||||
// From the spec, "Identifiers MUST comprise only
|
||||
// ASCII alphanumerics and hyphen [0-9A-Za-z-]. Identifiers MUST NOT be empty.
|
||||
// Numeric identifiers MUST NOT include leading zeroes.". These segments can
|
||||
// be dot separated.
|
||||
func validatePrerelease(p string) error {
|
||||
eparts := strings.Split(p, ".")
|
||||
for _, p := range eparts {
|
||||
if containsOnly(p, num) {
|
||||
if len(p) > 1 && p[0] == '0' {
|
||||
return ErrSegmentStartsZero
|
||||
}
|
||||
} else if !containsOnly(p, allowed) {
|
||||
return ErrInvalidPrerelease
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// From the spec, "Build metadata MAY be denoted by
|
||||
// appending a plus sign and a series of dot separated identifiers immediately
|
||||
// following the patch or pre-release version. Identifiers MUST comprise only
|
||||
// ASCII alphanumerics and hyphen [0-9A-Za-z-]. Identifiers MUST NOT be empty."
|
||||
func validateMetadata(m string) error {
|
||||
eparts := strings.Split(m, ".")
|
||||
for _, p := range eparts {
|
||||
if !containsOnly(p, allowed) {
|
||||
return ErrInvalidMetadata
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
Loading…
Reference in New Issue