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authorMike Yuan <me@yhndnzj.com>2023-05-16 21:53:24 +0800
committerGitHub <noreply@github.com>2023-05-16 21:53:24 +0800
commit0313c41068a362178190eac81f64b60223bb4c0c (patch)
tree859c0475b13cc7dac6edb15fcfce44286deee0ce /src/shared
parent3907b2563855f42562643fd26e9dec515d4ef928 (diff)
parentb5b1351317db64de1f2c944ec153208ba8174079 (diff)
downloadsystemd-0313c41068a362178190eac81f64b60223bb4c0c.tar.gz
Merge pull request #27638 from YHNdnzj/upheldby-unit-file
unit-file: support UpheldBy= in [Install] settings (adding Upholds= deps from .upholds/)
Diffstat (limited to 'src/shared')
-rw-r--r--src/shared/install.c21
-rw-r--r--src/shared/install.h1
2 files changed, 17 insertions, 5 deletions
diff --git a/src/shared/install.c b/src/shared/install.c
index 152e517ebc..7903de17b1 100644
--- a/src/shared/install.c
+++ b/src/shared/install.c
@@ -73,7 +73,8 @@ static bool install_info_has_rules(const InstallInfo *i) {
return !strv_isempty(i->aliases) ||
!strv_isempty(i->wanted_by) ||
- !strv_isempty(i->required_by);
+ !strv_isempty(i->required_by) ||
+ !strv_isempty(i->upheld_by);
}
static bool install_info_has_also(const InstallInfo *i) {
@@ -942,7 +943,7 @@ static int find_symlinks(
continue;
suffix = strrchr(de->d_name, '.');
- if (!STRPTR_IN_SET(suffix, ".wants", ".requires"))
+ if (!STRPTR_IN_SET(suffix, ".wants", ".requires", ".upholds"))
continue;
path = path_join(config_path, de->d_name);
@@ -967,7 +968,8 @@ static int find_symlinks(
log_debug_errno(r, "Failed to look up symlinks in \"%s\": %m", path);
}
- /* We didn't find any suitable symlinks in .wants or .requires directories, let's look for linked unit files in this directory. */
+ /* We didn't find any suitable symlinks in .wants, .requires or .upholds directories,
+ * let's look for linked unit files in this directory. */
rewinddir(config_dir);
return find_symlinks_in_directory(config_dir, config_path, root_dir, i,
/* ignore_destination= */ false,
@@ -1081,6 +1083,7 @@ static void install_info_clear(InstallInfo *i) {
i->aliases = strv_free(i->aliases);
i->wanted_by = strv_free(i->wanted_by);
i->required_by = strv_free(i->required_by);
+ i->upheld_by = strv_free(i->upheld_by);
i->also = strv_free(i->also);
i->default_instance = mfree(i->default_instance);
i->symlink_target = mfree(i->symlink_target);
@@ -1337,6 +1340,7 @@ static int unit_file_load(
{ "Install", "Alias", config_parse_alias, 0, &info->aliases },
{ "Install", "WantedBy", config_parse_strv, 0, &info->wanted_by },
{ "Install", "RequiredBy", config_parse_strv, 0, &info->required_by },
+ { "Install", "UpheldBy", config_parse_strv, 0, &info->upheld_by },
{ "Install", "DefaultInstance", config_parse_default_instance, 0, info },
{ "Install", "Also", config_parse_also, 0, ctx },
{}
@@ -1440,7 +1444,8 @@ static int unit_file_load(
return
(int) strv_length(info->aliases) +
(int) strv_length(info->wanted_by) +
- (int) strv_length(info->required_by);
+ (int) strv_length(info->required_by) +
+ (int) strv_length(info->upheld_by);
}
static int unit_file_load_or_readlink(
@@ -2113,6 +2118,10 @@ static int install_info_apply(
if (r == 0)
r = q;
+ q = install_info_symlink_wants(scope, file_flags, info, lp, config_path, info->upheld_by, ".upholds/", changes, n_changes);
+ if (r == 0)
+ r = q;
+
return r;
}
@@ -2733,8 +2742,10 @@ int unit_file_add_dependency(
if (dep == UNIT_WANTS)
l = &info->wanted_by;
- else
+ else if (dep == UNIT_REQUIRES)
l = &info->required_by;
+ else
+ l = &info->upheld_by;
strv_free(*l);
*l = strv_new(target_info->name);
diff --git a/src/shared/install.h b/src/shared/install.h
index 30b07a725f..bc0c6db828 100644
--- a/src/shared/install.h
+++ b/src/shared/install.h
@@ -92,6 +92,7 @@ struct InstallInfo {
char **aliases;
char **wanted_by;
char **required_by;
+ char **upheld_by;
char **also;
char *default_instance;