`chezmoi apply` on Linux printed "could not regenerate kitty theme
files" every run. GNU stat reads -f as --file-system, so
`stat -f '%Lp' file` prints a block of filesystem info to stdout and
exits non-zero. The `|| stat -c '%a'` fallback then appended the real
answer to that block, and chmod rejected the result, failing the script
under set -e.
Replace the chain with a file_mode() helper in both scripts: try the GNU
form first, since BSD rejects -c cleanly without printing anything, and
accept the answer only if it is octal. Covered by a new case in
tests/test_theme_mode.sh using a stat stub that reproduces GNU's
behaviour; it fails against the old chain.
theme-mode is a per-machine preference, and the three *-theme.auto.conf
files are generated from it plus themes/, so tracking any of them made
every machine flag the others' choice. Drop all four from the source
state and ignore them.
That leaves a freshly applied machine with no theme files for kitty to
read, so add run_after_kitty-theme-mode.sh to regenerate them from the
canonical themes. It defaults to `auto`, so a new machine follows its OS
until told otherwise, and it exits quietly where this kitty config isn't
applied rather than failing the run.
Since that script now runs on every apply, including on Linux, make the
permission lookup in both shell scripts fall back from BSD `stat -f` to
GNU `stat -c` and then to 600.
kitty gives *-theme.auto.conf priority over everything -- includes and
even --override -- and has no option to stop following the OS. So the
only way to start in a chosen mode is to control what those files
contain. Make them generated:
themes/{light,dark,no-preference}.conf canonical, the real themes
theme-mode auto | light | dark
apply-theme-mode.sh writes the three .auto.conf
Under `auto` each appearance keeps its own theme, so kitty follows the
OS as before. Pinned, all three get the pinned theme, so kitty starts in
it whatever the OS says and a config reload no longer resets it.
`theme` now records the mode and reloads instead of calling set-colors,
which is why the setting survives restarts. A bare `theme` records
`auto` rather than pinning when the toggle lands on the macOS
appearance, so nothing is pinned unless it actually differs.
The kitten shim hashes the automatic theme files before running `kitten
themes` and copies whichever changed into themes/, so picking a new
light theme while pinned to dark is kept and applied on the next switch.
Covered by tests/test_theme_mode.sh.
conf.d/kitty_theme.fish is gone: theme-mode is now the source of truth,
so the universal-variable tracker it maintained is redundant.
