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Configure Git to use bearer token auth mechanism
Tekton prepares the creds to be used through basic auth, which fails when the Bitbucket server has basic auth disabled. Fixes #683
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,92 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "fmt" | ||
| "os" | ||
| "path/filepath" | ||
| "strings" | ||
|
|
||
| "github.com/opendevstack/pipeline/internal/command" | ||
| "github.com/opendevstack/pipeline/pkg/logging" | ||
| ) | ||
|
|
||
| // gitCheckoutParams holds the parameters configuring the checkout. | ||
| type gitCheckoutParams struct { | ||
| repoURL string | ||
| bitbucketAccessToken string | ||
| recurseSubmodules string | ||
| depth string | ||
| gitFullRef string | ||
| } | ||
|
|
||
| // gitCheckout encapsulates the steps required to perform a Git checkout | ||
| func gitCheckout(p gitCheckoutParams) (err error) { | ||
| steps := [][]string{ | ||
| {"init"}, | ||
| // Even though Tekton prepares credentials to be used for each task, | ||
| // we set the auth explicitly here. The motivation is that Tekton uses | ||
| // basic auth to pass the username/token, which fails in environments | ||
| // that have basic auth disabled for Bitbucket. | ||
| {"config", | ||
| fmt.Sprintf("http.%s.extraHeader", p.repoURL), | ||
| fmt.Sprintf("Authorization: Bearer %s", p.bitbucketAccessToken), | ||
| }, | ||
| {"config", | ||
| fmt.Sprintf("http.%s/info/lfs.extraHeader", p.repoURL), | ||
| fmt.Sprintf("Authorization: Bearer %s", p.bitbucketAccessToken), | ||
| }, | ||
| {"remote", "add", "origin", p.repoURL}, | ||
| {"fetch", | ||
| fmt.Sprintf("--recurse-submodules=%s", p.recurseSubmodules), fmt.Sprintf("--depth=%s", p.depth), | ||
| "origin", "--update-head-ok", "--force", p.gitFullRef, | ||
| }, | ||
| {"checkout", "-f", "FETCH_HEAD"}, | ||
| } | ||
| for _, args := range steps { | ||
| if err == nil { | ||
| err = runGitCmd(args...) | ||
| } | ||
| } | ||
| return | ||
| } | ||
|
|
||
| // runGitCmd executes git with given args. | ||
| func runGitCmd(args ...string) error { | ||
| var output bytes.Buffer | ||
| err := command.Run("git", args, []string{}, &output, &output) | ||
| if err != nil { | ||
| return fmt.Errorf("git %v: %w\n%s", args, err, output.String()) | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func getCommitSHA(dir string) (string, error) { | ||
| content, err := os.ReadFile(filepath.Join(dir, ".git/HEAD")) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
| return strings.TrimSpace(string(content)), nil | ||
| } | ||
|
|
||
| func gitLfsInUse(logger logging.LeveledLoggerInterface, dir string) (lfs bool, err error) { | ||
| stdout, stderr, err := command.RunBufferedInDir("git", []string{"lfs", "ls-files", "--all"}, dir) | ||
| if err != nil { | ||
| return false, fmt.Errorf("cannot list git lfs files: %s (%w)", stderr, err) | ||
| } | ||
| return strings.TrimSpace(string(stdout)) != "", err | ||
| } | ||
|
|
||
| func gitLfsEnableAndPullFiles(logger logging.LeveledLoggerInterface, dir string) (err error) { | ||
| stdout, stderr, err := command.RunBufferedInDir("git", []string{"lfs", "install"}, dir) | ||
| if err != nil { | ||
| return fmt.Errorf("lfs install: %s (%w)", stderr, err) | ||
| } | ||
| logger.Infof(string(stdout)) | ||
| stdout, stderr, err = command.RunBufferedInDir("git", []string{"lfs", "pull"}, dir) | ||
| if err != nil { | ||
| return fmt.Errorf("lfs pull: %s (%w)", stderr, err) | ||
| } | ||
| logger.Infof(string(stdout)) | ||
| return err | ||
| } |
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