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build: avoid possible panic when reading git info #2663

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merged 1 commit into from
Aug 23, 2024
Merged

build: avoid possible panic when reading git info #2663

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16 changes: 11 additions & 5 deletions build/git.go
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Original file line number Diff line number Diff line change
Expand Up @@ -21,9 +21,15 @@ type gitAttrsAppendFunc func(so *client.SolveOpt)

func gitAppendNoneFunc(_ *client.SolveOpt) {}

func getGitAttributes(ctx context.Context, contextPath, dockerfilePath string) (gitAttrsAppendFunc, error) {
func getGitAttributes(ctx context.Context, contextPath, dockerfilePath string) (f gitAttrsAppendFunc, err error) {
defer func() {
if f == nil {
f = gitAppendNoneFunc
}
}()

if contextPath == "" {
return gitAppendNoneFunc, nil
return nil, nil
}

setGitLabels := false
Expand All @@ -42,7 +48,7 @@ func getGitAttributes(ctx context.Context, contextPath, dockerfilePath string) (
}

if !setGitLabels && !setGitInfo {
return gitAppendNoneFunc, nil
return nil, nil
}

// figure out in which directory the git command needs to run in
Expand All @@ -59,14 +65,14 @@ func getGitAttributes(ctx context.Context, contextPath, dockerfilePath string) (
if st, err1 := os.Stat(path.Join(wd, ".git")); err1 == nil && st.IsDir() {
return nil, errors.Wrap(err, "git was not found in the system")
}
return gitAppendNoneFunc, nil
return nil, nil
}

if !gitc.IsInsideWorkTree() {
if st, err := os.Stat(path.Join(wd, ".git")); err == nil && st.IsDir() {
return nil, errors.New("failed to read current commit information with git rev-parse --is-inside-work-tree")
}
return gitAppendNoneFunc, nil
return nil, nil
}

root, err := gitc.RootDir()
Expand Down