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package run
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import (
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"context"
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"os/exec"
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"strings"
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"testing"
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"github.com/barerepo/server/internal/gitx"
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func repoWithCommit(t *testing.T) (dir, sha string) {
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t.Helper()
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if _, err := gitx.Version(context.Background()); err != nil {
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t.Skip("git is not installed")
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dir = t.TempDir()
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run := func(args ...string) string {
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t.Helper()
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cmd := exec.Command(gitx.Bin, args...)
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cmd.Dir = dir
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cmd.Env = append(cmd.Environ(),
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"GIT_AUTHOR_NAME=m", "GIT_AUTHOR_EMAIL=m@x",
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"GIT_COMMITTER_NAME=m", "GIT_COMMITTER_EMAIL=m@x")
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out, err := cmd.CombinedOutput()
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if err != nil {
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t.Fatalf("git %v: %v\n%s", args, err, out)
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return strings.TrimSpace(string(out))
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run("init", "-q", "-b", "master")
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run("commit", "-q", "--allow-empty", "-m", "first")
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return dir, run("rev-parse", "HEAD")
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func TestAppendAndRead(t *testing.T) {
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ctx := context.Background()
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dir, sha := repoWithCommit(t)
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rec := Record{Runner: "uproar.local", Labels: []string{"build", "test"},
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Started: 1787074650, Duration: 18, Exit: 0}
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if err := Append(ctx, dir, sha, rec, "$ make ci\nok\n"); err != nil {
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t.Fatal(err)
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got, err := For(ctx, dir, sha)
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if err != nil || len(got) != 1 {
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t.Fatalf("For = %v, %v", got, err)
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if got[0].Runner != "uproar.local" || got[0].Exit != 0 || got[0].Duration != 18 {
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t.Errorf("record lost fields: %+v", got[0])
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if log, _ := Log(ctx, dir, got[0]); log != "$ make ci\nok\n" {
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t.Errorf("log = %q", log)
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// A commit can be built more than once, and both runs survive.
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if err := Append(ctx, dir, sha, Record{Runner: "lisa-mbp", Started: 1787074999, Exit: 2}, "boom"); err != nil {
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t.Fatal(err)
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got, _ = For(ctx, dir, sha)
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if len(got) != 2 {
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t.Fatalf("got %d runs, want 2", len(got))
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if got[0].Runner != "lisa-mbp" {
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t.Errorf("runs are not newest first: %+v", got)
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if !got[0].Failed() {
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t.Error("exit 2 is not reported as failed")
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// Chapter 16 claims build history is readable with git alone, and this is that claim tested.
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func TestGitCanReadTheRuns(t *testing.T) {
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ctx := context.Background()
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dir, sha := repoWithCommit(t)
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if err := Append(ctx, dir, sha,
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Record{Runner: "uproar.local", Started: 1, Exit: 0}, "ok"); err != nil {
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t.Fatal(err)
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out, err := gitx.Run(ctx, dir, "log", "--show-notes=runs", "--max-count=1")
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if err != nil {
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t.Fatal(err)
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if !strings.Contains(out, "Notes (runs)") || !strings.Contains(out, "uproar.local") {
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t.Errorf("git log --show-notes=runs did not print the run:\n%s", out)
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// A long log goes to a blob so that reading the notes ref stays cheap.
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func TestLargeLogGoesToABlob(t *testing.T) {
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ctx := context.Background()
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dir, sha := repoWithCommit(t)
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big := strings.Repeat("x", inlineLimit+1)
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if err := Append(ctx, dir, sha, Record{Runner: "r", Started: 1}, big); err != nil {
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t.Fatal(err)
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got, _ := For(ctx, dir, sha)
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if got[0].Output != "" {
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t.Error("a large log was inlined")
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}
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if got[0].Log == "" {
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t.Fatal("a large log has no blob")
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}
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log, err := Log(ctx, dir, got[0])
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if err != nil || len(log) != len(big) {
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t.Errorf("blob log came back as %d bytes, want %d (%v)", len(log), len(big), err)
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}