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Cutover. sign-extension no longer reads the version out of the repo — it
runs packaging.sh version and stamps the result into manifest.json and
package.json in the working tree before web-ext sees them. Never
committed back: the commit carrying the bump would itself be a change to
the extension and would move the version again.
Shadow mode ends here, in both build.yml and ci.yml. It had one job —
validate the formula at zero cost before a real AMO version was burned —
and CI confirmed it on 239b1ed: shadow: manual=1.0.11 derived=1.0.3499884.
build-web re-derives rather than being handed the value, so it gains
fetch-depth: 0. It was the outstanding landmine: a depth-1 clone derives a
WRONG, too-low version rather than failing, and would then 404 fetching a
release that exists under its real name. sign-extension and
extension-version already had full history.
New guard, and it stays permanently: refuse to sign when the derived
version is strictly OLDER than the highest ext-* release already signed.
Firefox rejects a downgrade and AMO never releases a burned version, so
backwards is unrecoverable — it strands every install that took the higher
one. Strictly older, not older-or-equal: equality is the ordinary case,
an unchanged extension deriving the same version it did last build, which
is exactly what makes the ext-<version> cache hit and holds AMO to one
call per extension CHANGE rather than per push. The release list is
paginated because ext-* shares it with the v* tags, and the bound fails
rather than calling the highest it happened to see the highest there is.
First derived value is 1.0.3499884 against a highest-signed ext-1.0.10, so
the backfill direction is right by six orders of magnitude. 1.0.11 sits in
the repo and was never signed; nothing is stranded by skipping past it.
Still main-only. Step 6 ungates sign-extension to dev, which is what
actually puts an XPI on :dev.
Note for step 5: ci.yml's manual-bump guard is now false. It still demands
a hand bump when a packaged file changes, and that bump no longer decides
anything — the derived value overwrites it at build time. Harmless but
pointless, and it should be retired before the next extension change.