feat(scripts): fail a branch that deletes files main still ships (#3150)

* feat(scripts): fail a branch that deletes files main still ships Written after a scare that turned out to be a measurement error, and the error is the reason it exists. Comparing tip to tip on a branch a month behind reports every file main has added since the merge base as a deletion: 1,284 of them, an entire skills tree among them, none of it real. A merge keeps mains side and a pull request shows the three-dot diff, which reported zero. So the gate uses the three-dot form and reports renames separately, because in a name-only diff a rename is indistinguishable from a deletion and treating them alike would either mask real loss or block every legitimate move. * ci: enforce the no-deletions guard
2026-09-01 19:42:03 +00:00 · 2026-08-09 22:24:42 -07:00
parent 79dff20516
commit f28bc80a1d
4 changed files with 139 additions and 1 deletions
@@ -44,6 +44,9 @@ jobs:
      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
        with:
          fetch-depth: 0
+      - name: Reject accidental file deletions
+        if: github.event_name == 'pull_request'
+        run: node scripts/check-no-main-deletions.mjs --base origin/main
      - uses: dorny/paths-filter@fbd0ab8f3e69293af611ebaee6363fc25e6d187d # v4
        id: filter
        with: