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tmpfiles: introduce --exclude-prefix 

The opposite of --prefix, allows specifying path prefixes which should
be skipped when processing rules.
This commit is contained in:
Dave Reisner 2013-07-24 11:19:24 -04:00
parent a2aced4add
commit 5c7951141f
3 changed files with 36 additions and 16 deletions
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7
man/systemd-tmpfiles.xml
View File

@ -124,6 +124,13 @@
prefix. This option can be specified
multiple times.</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--exclude-prefix=PATH</option></term>
<listitem><para>Ignore rules that
apply to paths with the specified
prefix. This option can be specified
multiple times.</para></listitem>
</varlistentry>
<varlistentry>

1
shell-completion/systemd-zsh-completion.zsh
View File

@ -249,6 +249,7 @@ _ctls()
'--clean[Clean up all files and directories with an age parameter configured.]' \
'--remove[All files and directories marked with r, R in the configuration files are removed.]' \
'--prefix=[Only apply rules that apply to paths with the specified prefix.]' \
'--exclude-prefix=[Ignore rules that apply to paths with the specified prefix.]' \
'--help[Prints a short help text and exits.]' \
'*::files:_files'
;;

44
src/tmpfiles/tmpfiles.c
View File

@ -106,6 +106,7 @@ static bool arg_clean = false;
static bool arg_remove = false;
static char **include_prefixes = NULL;
static char **exclude_prefixes = NULL;
static const char conf_file_dirs[] =
"/etc/tmpfiles.d\0"
@ -1021,16 +1022,19 @@ static bool item_equal(Item *a, Item *b) {
static bool should_include_path(const char *path) {
char **prefix;
/* no explicit paths specified for inclusion, so everything is valid */
if (strv_length(include_prefixes) == 0)
return true;
STRV_FOREACH(prefix, exclude_prefixes) {
if (path_startswith(path, *prefix))
return false;
}
STRV_FOREACH(prefix, include_prefixes) {
if (path_startswith(path, *prefix))
return true;
}
return false;
/* no matches, so we should include this path only if we
* have no whitelist at all */
return strv_length(include_prefixes) == 0;
}
static int parse_line(const char *fname, unsigned line, const char *buffer) {
@ -1219,11 +1223,12 @@ static int help(void) {
printf("%s [OPTIONS...] [CONFIGURATION FILE...]\n\n"
"Creates, deletes and cleans up volatile and temporary files and directories.\n\n"
" -h --help Show this help\n"
" --create Create marked files/directories\n"
" --clean Clean up marked directories\n"
" --remove Remove marked files/directories\n"
" --prefix=PATH Only apply rules that apply to paths with the specified prefix\n",
" -h --help Show this help\n"
" --create Create marked files/directories\n"
" --clean Clean up marked directories\n"
" --remove Remove marked files/directories\n"
" --prefix=PATH Only apply rules that apply to paths with the specified prefix\n"
" --exclude-prefix=PATH Ignore rules that apply to paths with the specified prefix\n",
program_invocation_short_name);
return 0;
@ -1235,16 +1240,18 @@ static int parse_argv(int argc, char *argv[]) {
ARG_CREATE,
ARG_CLEAN,
ARG_REMOVE,
ARG_PREFIX
ARG_PREFIX,
ARG_EXCLUDE_PREFIX,
};
static const struct option options[] = {
{ "help", no_argument, NULL, 'h' },
{ "create", no_argument, NULL, ARG_CREATE },
{ "clean", no_argument, NULL, ARG_CLEAN },
{ "remove", no_argument, NULL, ARG_REMOVE },
{ "prefix", required_argument, NULL, ARG_PREFIX },
{ NULL, 0, NULL, 0 }
{ "help", no_argument, NULL, 'h' },
{ "create", no_argument, NULL, ARG_CREATE },
{ "clean", no_argument, NULL, ARG_CLEAN },
{ "remove", no_argument, NULL, ARG_REMOVE },
{ "prefix", required_argument, NULL, ARG_PREFIX },
{ "exclude-prefix", required_argument, NULL, ARG_EXCLUDE_PREFIX },
{ NULL, 0, NULL, 0 }
};
int c;
@ -1277,6 +1284,11 @@ static int parse_argv(int argc, char *argv[]) {
return log_oom();
break;
case ARG_EXCLUDE_PREFIX:
if (strv_extend(&exclude_prefixes, optarg) < 0)
return log_oom();
break;
case '?':
return -EINVAL;