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systemctl: enable: overwrite broken alias symlinks

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When switching to an alternative alias provider,
the previous one might have been uninstalled or so.
It should be fine for us to overwrite them directly.

Closes #23694
This commit is contained in:
Mike Yuan 2022-12-29 14:51:06 +08:00 committed by Luca Boccassi
parent 44db9fbb39
commit c067e61b85
1 changed files with 9 additions and 1 deletions
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10
src/shared/install.c
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@ -1892,6 +1892,7 @@ static int install_info_symlink_alias(
STRV_FOREACH(s, info->aliases) {
_cleanup_free_ char *alias_path = NULL, *dst = NULL, *dst_updated = NULL;
bool broken;
q = install_name_printf(scope, info, *s, &dst);
if (q < 0) {
@ -1912,7 +1913,14 @@ static int install_info_symlink_alias(
if (!alias_path)
return -ENOMEM;
q = create_symlink(lp, info->path, alias_path, force, changes, n_changes);
q = chase_symlinks(alias_path, lp->root_dir, CHASE_NONEXISTENT, NULL, NULL);
if (q < 0 && q != -ENOENT) {
r = r < 0 ? r : q;
continue;
}
broken = q == 0; /* symlink target does not exist? */
q = create_symlink(lp, info->path, alias_path, force || broken, changes, n_changes);
r = r < 0 ? r : q;
}