feat(deploy): diff a deployment against the previous deploy of its target

gmackie commented

2026-07-12 16:19:00 +00:00

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Implements the Deploy Diff roadmap item (TODOS.md P3). The existing View-diff button showed the changeset's own cached diff; it now shows what actually changed in this deploy: previous deploy SHA → current deploy SHA via the git server compare endpoint, with graceful fallbacks (first deploy, redeploy, cross-repo, git-server error) and honest labeling.

🤖 Generated with Claude Code

Implements the Deploy Diff roadmap item (TODOS.md P3). The existing View-diff button showed the changeset's own cached diff; it now shows what actually changed in this deploy: previous deploy SHA → current deploy SHA via the git server compare endpoint, with graceful fallbacks (first deploy, redeploy, cross-repo, git-server error) and honest labeling. 🤖 Generated with [Claude Code](https://claude.com/claude-code)

gmackie added 1 commit

2026-07-12 16:19:00 +00:00

feat(deploy): diff a deployment against the previous deploy of its target

CI / ci (pull_request) Successful in 5m15s

Details

f4c81b4200

deployment.diffByDeployment previously returned the changeset's own cached
diff — not what changed in this deploy. It now finds the previous deployment
of the same (app, stage, target, service) that reached a node and compares
prev.headSha...current.headSha through the git server's compare endpoint,
reusing parseUnifiedDiff for rendering.

- Extracted the git API client from repo-content into lib/git-server.ts
  (shared gitApiFetch + typed compareRefs).
- Fallback ladder: first deploy / missing SHA / cross-repo / git-server
  error all degrade to the cached changeset diff with a machine-readable
  fallbackReason; same-SHA redeploys short-circuit without a git call.
- UI: compare header (baseSha…headSha vs previous deploy), honest
  'changeset diff' label on fallback, first-deploy/redeploy empty states,
  truncated-file placeholder; diff button no longer requires a changeset.
- 7 new tests cover compare, redeploy short-circuit, first-deploy, failed
  deploys excluded from base selection, git-error fallback, truncated
  files, and authz.

Typecheck 9/9, api 605 tests, web 435 tests.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

gmackie merged commit e70cbc523d into main

2026-07-12 16:25:00 +00:00

gmackie deleted branch feat/deploy-diff

2026-07-12 16:25:00 +00:00

gmackie referenced this pull request from a commit

2026-07-12 16:25:01 +00:00

feat(deploy): diff a deployment against the previous deploy of its target (#83)

gmackie referenced this pull request from a commit

2026-07-12 17:07:50 +00:00

docs: bring TODOS.md and env examples up to reality

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feat(deploy): diff a deployment against the previous deploy of its target #83