Chris Wanstrath
f1825c65da
Hoist mainBranch lookup before the new-commits check to avoid a duplicate call, and report clearly when rollback itself fails so the user knows to consult git reflog.
59 lines
2.0 KiB
TypeScript
59 lines
2.0 KiB
TypeScript
import * as git from "../git.ts"
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import * as vm from "../vm.ts"
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import { spinner } from "../spinner.ts"
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import { die } from "../fmt.ts"
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import { requireSession } from "./helpers.ts"
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export async function action(branch: string) {
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const { session } = await requireSession(branch)
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const worktree = session.worktree
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if (await git.isDirty(worktree)) {
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die(`Branch "${branch}" has unsaved changes. Run "sandlot save ${branch}" first.`)
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}
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const main = await git.mainBranch(worktree)
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if (!await git.hasNewCommits(worktree)) {
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die(`Branch "${branch}" has no commits beyond ${main}.`)
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}
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const base = await git.mergeBase(main, "HEAD", worktree)
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const originalHead = await git.headRef(worktree)
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const spin = spinner("Squashing", branch)
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try {
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await git.resetSoft(base, worktree)
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spin.text = "Starting container"
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await vm.ensure((msg) => { spin.text = msg })
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spin.text = "Generating commit message"
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const diff = await git.diffStaged(worktree)
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if (!diff.trim()) {
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await git.resetSoft(originalHead, worktree)
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spin.fail("No changes after squash")
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return
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}
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const gen = await vm.claudePipe(
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diff,
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"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.",
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)
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const msg = (gen.exitCode === 0 && gen.stdout.trim()) || `squash ${branch}`
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await git.commit(msg, worktree)
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spin.succeed(`Squashed ${branch} into a single commit`)
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} catch (err) {
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const restored = await git.resetSoft(originalHead, worktree).then(() => true).catch(() => false)
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const message = err instanceof Error ? err.message : String(err)
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spin.fail(restored
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? `Squash failed, changes restored: ${message}`
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: `Squash failed and rollback failed — check "git reflog" in the worktree: ${message}`)
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process.exit(1)
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}
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}
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