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Fix squash error handling and exit codes

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Skip unnecessary rollback when reset never happened, show fallback
notice when AI commit message generation fails, and exit non-zero
when squash produces no changes.
This commit is contained in:
Chris Wanstrath 2026-04-10 08:44:18 -07:00
parent f1825c65da
commit 106ff20de7
1 changed files with 14 additions and 5 deletions
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19
src/commands/squash.ts
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@ -22,9 +22,11 @@ export async function action(branch: string) {
const originalHead = await git.headRef(worktree)
const spin = spinner("Squashing", branch)
let didReset = false
try {
await git.resetSoft(base, worktree)
didReset = true
spin.text = "Starting container"
await vm.ensure((msg) => { spin.text = msg })
@ -35,7 +37,7 @@ export async function action(branch: string) {
if (!diff.trim()) {
await git.resetSoft(originalHead, worktree)
spin.fail("No changes after squash")
return
process.exit(1)
}
const gen = await vm.claudePipe(
@ -43,16 +45,23 @@ export async function action(branch: string) {
"Write a commit message summarizing all changes. Subject line: imperative mood, max 72 characters, no period. Add a blank line then a concise body with the key changes as bullet points. Output only the raw commit message, no quotes or markdown.",
)
if (gen.exitCode !== 0 || !gen.stdout.trim()) {
spin.text = "AI commit message failed, using fallback"
}
const msg = (gen.exitCode === 0 && gen.stdout.trim()) || `squash ${branch}`
await git.commit(msg, worktree)
spin.succeed(`Squashed ${branch} into a single commit`)
} catch (err) {
const restored = await git.resetSoft(originalHead, worktree).then(() => true).catch(() => false)
const message = err instanceof Error ? err.message : String(err)
spin.fail(restored
? `Squash failed, changes restored: ${message}`
: `Squash failed and rollback failed — check "git reflog" in the worktree: ${message}`)
if (!didReset) {
spin.fail(`Squash failed: ${message}`)
} else {
const restored = await git.resetSoft(originalHead, worktree).then(() => true).catch(() => false)
spin.fail(restored
? `Squash failed, changes restored: ${message}`
: `Squash failed and rollback failed — check "git reflog" in the worktree: ${message}`)
}
process.exit(1)
}
}