Adds the branch-based publishing model: the editor writes to a long-lived
`atheos-writer` branch, and merging into `master` stays in Gitea.
Six macros installed into Atheos's macro store (a copy is kept in
files/macros.db.php so a rebuild reproduces them), invoked by right-clicking
the `blog` folder:
1. Start/Join Writer Branch idempotent create-or-switch + push -u
2. Commit + Push Writer Branch identity guard -> add -A -> commit (only
if something is staged) -> push
3. DESTRUCTIVE: Reset Writer to Master fetch -> reset --hard origin/master ->
push --force-with-lease
4. Status + Recent Log read-only
5. Refresh Master (ff-only) pull master down, return to writer
6. Merge Master Into Writer Branch when master has moved ahead
Atheos has no terminal and codegit exposes no branch-switching, so macros are
the only way to run arbitrary git from the UI. Verified: codegit's `checkout`
action takes a FILE argument - it is per-file revert, not branch switching.
Identity handling: the commit macros deliberately do NOT hardcode an identity.
php-fpm runs with HOME=/home/atheos (verified), the same global gitconfig the
operator edits over SSH, so hardcoding `git -c user.name=...` would OVERRIDE the
operator's own identity. Instead macro 2 guards on an identity existing and fails
with an actionable message - which is what design decision D1 intends.
Verified by exercising each command through the web server as the php-fpm user:
- macro 1, 4, 5 return rc=0 with correct output
- macro 2's identity guard fires with the exact RUNBOOK STEP 1 message
- macro 3 was tested with real divergence: committed on the writer branch,
reset --hard to master, force-pushed; origin/atheos-writer then matched
origin/master exactly (0 ahead, 0 behind)
Security note recorded in the docs and README: this model only holds if branch
protection is enabled on armistace/blog's master. It is currently NOT enabled,
so the deploy key could force-push master directly - the operator needs to turn
it on (repo-owner action).
Also documents two hazards found while testing:
- macro 2's `git add -A` stages everything, and a subsequent `reset --hard`
deletes any untracked file that was staged. Keep scratch files outside
workspace/blog/.
- recovery procedure for a file lost that way (git fsck --lost-found ->
ls-tree -> cat-file), which was used to restore a file during testing.
