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Reduce duplicate code in DB extraction

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Follow-up to the previous "Only extract new DB entries" patch; move the
partial extraction code inside one side of the loop so we can use the same
code for actually doing file extraction.

Signed-off-by: Dan McGee <dan@archlinux.org>
This commit is contained in:
Dan McGee 2010-03-14 19:16:26 -05:00
parent 2f4ee4341d
commit be2f43191d
1 changed files with 28 additions and 39 deletions
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67
lib/libalpm/be_files.c
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@ -209,9 +209,9 @@ static int remove_olddir(const char *syncdbpath, alpm_list_t *dirlist)
int SYMEXPORT alpm_db_update(int force, pmdb_t *db)
{
char *dbfile, *dbfilepath;
const char *dbpath;
const char *dbpath, *syncdbpath;
alpm_list_t *filelist = NULL;
size_t len;
int ret;
ALPM_LOG_FUNC;
@ -249,7 +249,7 @@ int SYMEXPORT alpm_db_update(int force, pmdb_t *db)
return(-1);
}
const char *syncdbpath = _alpm_db_path(db);
syncdbpath = _alpm_db_path(db);
/* form the path to the db location */
len = strlen(dbpath) + strlen(db->treename) + strlen(DBEXT) + 1;
@ -264,54 +264,43 @@ int SYMEXPORT alpm_db_update(int force, pmdb_t *db)
} else {
_alpm_log(PM_LOG_DEBUG, "database dir %s removed\n", _alpm_db_path(db));
}
} else {
/* if not forcing, only remove and extract what is necessary */
alpm_list_t *newdirlist = NULL;
alpm_list_t *olddirlist = NULL;
alpm_list_t *onlyold = NULL;
/* Cache needs to be rebuilt */
_alpm_db_free_pkgcache(db);
checkdbdir(db);
ret = _alpm_unpack(dbfilepath, syncdbpath, NULL, 0);
free(dbfilepath);
ret = dirlist_from_tar(dbfilepath, &newdirlist);
if(ret) {
RET_ERR(PM_ERR_SYSTEM, -1);
FREELIST(newdirlist);
goto cleanup;
}
ret = dirlist_from_fs(syncdbpath, &olddirlist);
if(ret) {
FREELIST(olddirlist);
FREELIST(newdirlist);
goto cleanup;
}
alpm_list_diff_sorted(olddirlist, newdirlist, _alpm_str_cmp, &onlyold, &filelist);
FREELIST(olddirlist);
FREELIST(newdirlist);
ret = remove_olddir(syncdbpath, onlyold);
alpm_list_free(onlyold);
if(ret) {
goto cleanup;
}
return(0);
}
/* if not forcing, only remove and extract what is necessary */
alpm_list_t *onlyold = NULL;
alpm_list_t *onlynew = NULL;
alpm_list_t *olddirlist = NULL;
alpm_list_t *newdirlist = NULL;
ret = dirlist_from_tar(dbfilepath, &newdirlist);
if(ret) {
goto cleanup;
}
ret = dirlist_from_fs(syncdbpath, &olddirlist);
if(ret) {
goto cleanup;
}
alpm_list_diff_sorted(olddirlist, newdirlist, _alpm_str_cmp, &onlyold, &onlynew);
ret = remove_olddir(syncdbpath, onlyold);
/* Cache needs to be rebuilt */
_alpm_db_free_pkgcache(db);
if(ret) {
goto cleanup;
}
checkdbdir(db);
ret = _alpm_unpack(dbfilepath, syncdbpath, onlynew, 0);
ret = _alpm_unpack(dbfilepath, syncdbpath, filelist, 0);
cleanup:
free(dbfilepath);
alpm_list_free(onlyold);
alpm_list_free(onlynew);
FREELIST(olddirlist);
FREELIST(newdirlist);
if(ret) {
RET_ERR(PM_ERR_SYSTEM, -1);