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Add a utility function to check whether a file exists in the cache

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It is similar to _alpm_filecache_find() but does not return a
dynamically allocated memory to user. Thus the user does not need to
free this resource.

Signed-off-by: Anatol Pomozov <anatol.pomozov@gmail.com>
Signed-off-by: Allan McRae <allan@archlinux.org>
This commit is contained in:
Anatol Pomozov 2020-04-23 17:28:43 -07:00 • committed by Allan McRae
parent 34ba8d984d
commit 78d6dcec6c
2 changed files with 16 additions and 0 deletions
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14
lib/libalpm/util.c
View file

@ -834,6 +834,20 @@ char *_alpm_filecache_find(alpm_handle_t *handle, const char *filename)
return NULL;
}
/** Check whether a filename exists in a registered alpm cachedir.
* @param handle the context handle
* @param filename name of file to find
* @return 0 if the filename was not found, 1 otherwise
*/
int _alpm_filecache_exists(alpm_handle_t *handle, const char *filename)
{
int res;
char *fpath = _alpm_filecache_find(handle, filename);
res = (fpath != NULL);
FREE(fpath);
return res;
}
/** Check the alpm cachedirs for existence and find a writable one.
* If no valid cache directory can be found, use /tmp.
* @param handle the context handle

2
lib/libalpm/util.h
View file

@ -136,6 +136,8 @@ int _alpm_run_chroot(alpm_handle_t *handle, const char *cmd, char *const argv[],
int _alpm_ldconfig(alpm_handle_t *handle);
int _alpm_str_cmp(const void *s1, const void *s2);
char *_alpm_filecache_find(alpm_handle_t *handle, const char *filename);
/* Checks whether a file exists in cache */
int _alpm_filecache_exists(alpm_handle_t *handle, const char *filename);
const char *_alpm_filecache_setup(alpm_handle_t *handle);
/* Unlike many uses of alpm_pkgvalidation_t, _alpm_test_checksum expects
* an enum value rather than a bitfield. */