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136 lines
3.7 KiB
Go
136 lines
3.7 KiB
Go
/*
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Copyright 2020 The Compose Specification Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package loader
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import (
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"os"
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"path/filepath"
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"strings"
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"github.com/compose-spec/compose-go/types"
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)
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// ResolveRelativePaths resolves relative paths based on project WorkingDirectory
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func ResolveRelativePaths(project *types.Project) error {
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absWorkingDir, err := filepath.Abs(project.WorkingDir)
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if err != nil {
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return err
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}
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project.WorkingDir = absWorkingDir
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absComposeFiles, err := absComposeFiles(project.ComposeFiles)
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if err != nil {
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return err
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}
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project.ComposeFiles = absComposeFiles
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for i, s := range project.Services {
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ResolveServiceRelativePaths(project.WorkingDir, &s)
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project.Services[i] = s
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}
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for i, obj := range project.Configs {
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if obj.File != "" {
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obj.File = absPath(project.WorkingDir, obj.File)
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project.Configs[i] = obj
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}
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}
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for i, obj := range project.Secrets {
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if obj.File != "" {
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obj.File = resolveMaybeUnixPath(project.WorkingDir, obj.File)
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project.Secrets[i] = obj
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}
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}
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for name, config := range project.Volumes {
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if config.Driver == "local" && config.DriverOpts["o"] == "bind" {
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// This is actually a bind mount
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config.DriverOpts["device"] = resolveMaybeUnixPath(project.WorkingDir, config.DriverOpts["device"])
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project.Volumes[name] = config
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}
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}
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return nil
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}
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func ResolveServiceRelativePaths(workingDir string, s *types.ServiceConfig) {
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if s.Build != nil {
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if !isRemoteContext(s.Build.Context) {
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s.Build.Context = absPath(workingDir, s.Build.Context)
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}
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for name, path := range s.Build.AdditionalContexts {
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if strings.Contains(path, "://") { // `docker-image://` or any builder specific context type
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continue
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}
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if isRemoteContext(path) {
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continue
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}
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s.Build.AdditionalContexts[name] = absPath(workingDir, path)
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}
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}
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for j, f := range s.EnvFile {
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s.EnvFile[j] = absPath(workingDir, f)
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}
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if s.Extends != nil && s.Extends.File != "" {
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s.Extends.File = absPath(workingDir, s.Extends.File)
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}
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for i, vol := range s.Volumes {
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if vol.Type != types.VolumeTypeBind {
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continue
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}
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s.Volumes[i].Source = resolveMaybeUnixPath(workingDir, vol.Source)
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}
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}
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func absPath(workingDir string, filePath string) string {
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if strings.HasPrefix(filePath, "~") {
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home, _ := os.UserHomeDir()
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return filepath.Join(home, filePath[1:])
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}
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if filepath.IsAbs(filePath) {
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return filePath
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}
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return filepath.Join(workingDir, filePath)
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}
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func absComposeFiles(composeFiles []string) ([]string, error) {
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for i, composeFile := range composeFiles {
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absComposefile, err := filepath.Abs(composeFile)
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if err != nil {
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return nil, err
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}
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composeFiles[i] = absComposefile
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}
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return composeFiles, nil
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}
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// isRemoteContext returns true if the value is a Git reference or HTTP(S) URL.
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//
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// Any other value is assumed to be a local filesystem path and returns false.
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//
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// See: https://github.com/moby/buildkit/blob/18fc875d9bfd6e065cd8211abc639434ba65aa56/frontend/dockerui/context.go#L76-L79
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func isRemoteContext(maybeURL string) bool {
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for _, prefix := range []string{"https://", "http://", "git://", "ssh://", "github.com/", "git@"} {
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if strings.HasPrefix(maybeURL, prefix) {
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return true
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}
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}
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return false
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}
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