Carlos Florêncio
45 lines
1.3 KiB
Go
45 lines
1.3 KiB
Go
package process
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import (
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"context"
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"fmt"
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"strings"
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)
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// prepareBaseBranchTarget chooses the ref used by Merge and Rebase. An
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// origin remote keeps the existing fetch-first behavior; without origin, the
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// operation must use a verified local branch instead.
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func (g *GitOperator) prepareBaseBranchTarget(
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ctx context.Context,
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baseBranch string,
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) (output string, target string, err error) {
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remotesOutput, err := g.runGitCommand(ctx, "remote")
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if err != nil {
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return remotesOutput, "", fmt.Errorf("failed to list git remotes: %w", err)
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}
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if hasGitRemote(remotesOutput, "origin") {
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fetchOutput, fetchErr := g.runGitCommand(ctx, "fetch", "origin", baseBranch)
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if fetchErr != nil {
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return fetchOutput, "", fmt.Errorf("failed to fetch base branch: %w", fetchErr)
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}
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return fetchOutput, "origin/" + baseBranch, nil
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}
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localTarget := "refs/heads/" + baseBranch
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verifyOutput, verifyErr := g.runGitCommand(ctx, "rev-parse", "--verify", localTarget)
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if verifyErr != nil {
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return verifyOutput, "", fmt.Errorf("base branch %q does not exist locally: %w", baseBranch, verifyErr)
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}
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return "", localTarget, nil
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}
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func hasGitRemote(remotesOutput, wanted string) bool {
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for _, remote := range strings.Split(remotesOutput, "\n") {
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if strings.TrimSpace(remote) == wanted {
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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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