Mark the boot image migration done only when a boot entry has the parameter

limine-mkinitcpio carries on past a kernel it could not build, with a
full boot partition for one, and still exits 0. The migration then wrote
its marker over an unchanged boot image, and no later update would try
again.

After the rebuild it now looks at the boot menu: if the menu has command
lines and none carries the parameter, the migration fails and stays
pending. A menu with no command lines in it, where they are inside the
boot images, cannot be checked this way and is accepted as before.

test/shell.d/console-no-ansi-query-migration-test.sh

@@ -18,7 +18,14 @@ mkdir -p "$stub_bin"
 # sudo just drops the prefix; limine-mkinitcpio records that it ran, and fails
 # when told to.
 printf '#!/bin/bash\nexec "$@"\n' >"$stub_bin/sudo"
-printf '#!/bin/bash\necho rebuilt >>"${REBUILDS:?}"\n[[ -z ${REBUILD_FAILS:-} ]]\n' >"$stub_bin/limine-mkinitcpio"
+# A rebuild writes the new command line into the boot menu, unless it is the
+# kind that builds nothing and still exits 0.
+cat >"$stub_bin/limine-mkinitcpio" <<'STUB'
+#!/bin/bash
+echo rebuilt >>"${REBUILDS:?}"
+[[ -z ${REBUILD_FAILS:-} ]] || exit 1
+[[ -n ${REBUILD_BUILDS_NOTHING:-} ]] || printf '  cmdline: %s\n' "${NEW_CMDLINE:?}" >"${LIMINE_CONF:?}"
+STUB
 chmod +x "$stub_bin"/*
 
 old_cmdline="root=PARTUUID=1 rw quiet splash initramfs_async=0"
@@ -27,7 +34,9 @@ new_cmdline="$old_cmdline systemd.tty.term.console=dumb"
 run() { # booted cmdline, defaults conf
   : >"$test_dir/rebuilds"
   printf '%s\n' "$1" >"$test_dir/cmdline"
+  printf '  cmdline: %s\n' "$1" >"$test_dir/limine.conf"
   PATH="$stub_bin:$ROOT/bin:$PATH" REBUILDS="$test_dir/rebuilds" \
+    LIMINE_CONF="$test_dir/limine.conf" NEW_CMDLINE="$new_cmdline" OMARCHY_LIMINE_CONF="$test_dir/limine.conf" \
     OMARCHY_RUNNING_CMDLINE="$test_dir/cmdline" OMARCHY_LIMINE_DEFAULTS_CONF="$2" \
     OMARCHY_LIMINE_REBUILD_MARKER="$test_dir/marker" bash -euo pipefail "$migration" >/dev/null
 }
@@ -41,6 +50,13 @@ fi
 [[ $(rebuilds) == 1 && ! -e $test_dir/marker ]] || fail "a failed rebuild was marked as done"
 pass "a rebuild that fails stops the migration and leaves no marker"
 
+# limine-mkinitcpio exits 0 past a kernel it could not build.
+if REBUILD_BUILDS_NOTHING=1 run "$old_cmdline" "$ROOT/etc/limine-entry-tool.d/omarchy-defaults.conf"; then
+  fail "a rebuild that changed nothing was reported as a success"
+fi
+[[ ! -e $test_dir/marker ]] || fail "a rebuild that changed nothing was marked as done"
+pass "a rebuild that exits 0 without changing the boot menu leaves the migration pending"
+
 run "$old_cmdline" "$ROOT/etc/limine-entry-tool.d/omarchy-defaults.conf"
 [[ $(rebuilds) == 1 && -e $test_dir/marker ]] ||
   fail "a machine booted without the parameter did not get its boot image rebuilt"
@@ -65,7 +81,7 @@ pass "a machine whose defaults were edited to leave the parameter out is left al
 # not found either.
 rm "$stub_bin/limine-mkinitcpio"
 mkdir -p "$test_dir/tools"
-for tool in bash grep install cat; do ln -s "$(command -v "$tool")" "$test_dir/tools/$tool"; done
+for tool in bash grep install cat sed tail; do ln -s "$(command -v "$tool")" "$test_dir/tools/$tool"; done
 : >"$test_dir/rebuilds"
 printf '%s\n' "$old_cmdline" >"$test_dir/cmdline"
 PATH="$stub_bin:$ROOT/bin:$test_dir/tools" REBUILDS="$test_dir/rebuilds" \