A second review pass found the PKGBUILD rewriting could still go wrong in ways
the pattern matching did not anticipate: an array element carrying a ")" in a
comment left the tail of the old array behind, and jq's "$" also matches before
a trailing newline, so a pkgver of "1.0\n" passed validation and then broke sed
after the checksum arrays had already been written.
Rather than chase each shape, prove the result. Every edit now lands on a
scratch copy that is parsed with bash -n and read back to confirm it holds the
version and checksums we meant to write, and only then replaces the PKGBUILD in
a single rename. Corruption that slips past the matching fails loudly with the
original untouched instead of landing in a pull request.
The validation anchors are \A and \z accordingly, empty checksum lists are
rejected rather than written as '', and the hook picks the newest stanza with
vercmp so it agrees with the comparator the updater uses.
Also stop the launcher probing /.config when HOME and XDG_CONFIG_HOME are both
unset, and require a regular file, so a directory at that path is skipped
instead of crashing the app on startup.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
