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authorDan McGee <dan@archlinux.org>2012-07-12 22:29:59 +0200
committerDan McGee <dan@archlinux.org>2012-08-02 16:39:08 +0200
commit72d3713cc7865af5f4d91410ad56ed4287be6109 (patch)
treeb7a4a0ddf620e5fcdaffa85c91a7352570217f24 /lib/libalpm/conflict.c
parent70d8c2150e33d1a0b9e09d72c5091d661383d641 (diff)
downloadpacman-72d3713cc7865af5f4d91410ad56ed4287be6109.tar.gz
pacman-72d3713cc7865af5f4d91410ad56ed4287be6109.tar.xz
Move filelist functions into separate source file
We have a few of these and might as well gather them together. This also cleans up the code a bit by using an enum instead of integer values, as well as makes a "search for file in filelist" function public so frontends can do better than straight linear search of the filelists. Signed-off-by: Dan McGee <dan@archlinux.org>
Diffstat (limited to 'lib/libalpm/conflict.c')
-rw-r--r--lib/libalpm/conflict.c97
1 files changed, 11 insertions, 86 deletions
diff --git a/lib/libalpm/conflict.c b/lib/libalpm/conflict.c
index 60691c94..dd153fed 100644
--- a/lib/libalpm/conflict.c
+++ b/lib/libalpm/conflict.c
@@ -38,6 +38,7 @@
#include "util.h"
#include "log.h"
#include "deps.h"
+#include "filelist.h"
static alpm_conflict_t *conflict_new(alpm_pkg_t *pkg1, alpm_pkg_t *pkg2,
alpm_depend_t *reason)
@@ -213,67 +214,6 @@ alpm_list_t SYMEXPORT *alpm_checkconflicts(alpm_handle_t *handle,
return _alpm_innerconflicts(handle, pkglist);
}
-static const int DIFFERENCE = 0;
-static const int INTERSECT = 1;
-/* Returns a set operation on the provided two lists of files.
- * Pre-condition: both lists are sorted!
- * When done, free the list but NOT the contained data.
- *
- * Operations:
- * DIFFERENCE - a difference operation is performed. filesA - filesB.
- * INTERSECT - an intersection operation is performed. filesA & filesB.
- */
-static alpm_list_t *filelist_operation(alpm_filelist_t *filesA,
- alpm_filelist_t *filesB, int operation)
-{
- alpm_list_t *ret = NULL;
- size_t ctrA = 0, ctrB = 0;
-
- while(ctrA < filesA->count && ctrB < filesB->count) {
- alpm_file_t *fileA = filesA->files + ctrA;
- alpm_file_t *fileB = filesB->files + ctrB;
- const char *strA = fileA->name;
- const char *strB = fileB->name;
- /* skip directories, we don't care about them */
- if(strA[strlen(strA)-1] == '/') {
- ctrA++;
- } else if(strB[strlen(strB)-1] == '/') {
- ctrB++;
- } else {
- int cmp = strcmp(strA, strB);
- if(cmp < 0) {
- if(operation == DIFFERENCE) {
- /* item only in filesA, qualifies as a difference */
- ret = alpm_list_add(ret, fileA);
- }
- ctrA++;
- } else if(cmp > 0) {
- ctrB++;
- } else {
- if(operation == INTERSECT) {
- /* item in both, qualifies as an intersect */
- ret = alpm_list_add(ret, fileA);
- }
- ctrA++;
- ctrB++;
- }
- }
- }
-
- /* if doing a difference, ensure we have completely emptied pA */
- while(operation == DIFFERENCE && ctrA < filesA->count) {
- alpm_file_t *fileA = filesA->files + ctrA;
- const char *strA = fileA->name;
- /* skip directories */
- if(strA[strlen(strA)-1] != '/') {
- ret = alpm_list_add(ret, fileA);
- }
- ctrA++;
- }
-
- return ret;
-}
-
/* Adds alpm_fileconflict_t to a conflicts list. Pass the conflicts list, the
* conflicting file path, and either two packages or one package and NULL.
*/
@@ -312,21 +252,6 @@ void _alpm_fileconflict_free(alpm_fileconflict_t *conflict)
FREE(conflict);
}
-const alpm_file_t *_alpm_filelist_contains(alpm_filelist_t *filelist,
- const char *name)
-{
- alpm_file_t key;
-
- if(!filelist) {
- return NULL;
- }
-
- key.name = (char *)name;
-
- return bsearch(&key, filelist->files, filelist->count,
- sizeof(alpm_file_t), _alpm_files_cmp);
-}
-
static int dir_belongsto_pkg(alpm_handle_t *handle, const char *dirpath,
alpm_pkg_t *pkg)
{
@@ -339,7 +264,7 @@ static int dir_belongsto_pkg(alpm_handle_t *handle, const char *dirpath,
const char *root = handle->root;
/* check directory is actually in package - used for subdirectory checks */
- if(!_alpm_filelist_contains(alpm_pkg_get_files(pkg), dirpath)) {
+ if(!alpm_filelist_contains(alpm_pkg_get_files(pkg), dirpath)) {
_alpm_log(handle, ALPM_LOG_DEBUG,
"directory %s not in package %s\n", dirpath, pkg->name);
return 0;
@@ -357,7 +282,7 @@ static int dir_belongsto_pkg(alpm_handle_t *handle, const char *dirpath,
continue;
}
- if(_alpm_filelist_contains(alpm_pkg_get_files(i->data), dirpath)) {
+ if(alpm_filelist_contains(alpm_pkg_get_files(i->data), dirpath)) {
_alpm_log(handle, ALPM_LOG_DEBUG,
"file %s also in package %s\n", dirpath,
((alpm_pkg_t*)i->data)->name);
@@ -391,7 +316,7 @@ static int dir_belongsto_pkg(alpm_handle_t *handle, const char *dirpath,
return 0;
}
} else {
- if(_alpm_filelist_contains(alpm_pkg_get_files(pkg), path)) {
+ if(alpm_filelist_contains(alpm_pkg_get_files(pkg), path)) {
continue;
} else {
closedir(dir);
@@ -442,7 +367,7 @@ alpm_list_t *_alpm_db_find_fileconflicts(alpm_handle_t *handle,
for(j = i->next; j; j = j->next) {
alpm_list_t *common_files;
alpm_pkg_t *p2 = j->data;
- common_files = filelist_operation(alpm_pkg_get_files(p1),
+ common_files = _alpm_filelist_operation(alpm_pkg_get_files(p1),
alpm_pkg_get_files(p2), INTERSECT);
if(common_files) {
@@ -475,7 +400,7 @@ alpm_list_t *_alpm_db_find_fileconflicts(alpm_handle_t *handle,
if(dbpkg) {
alpm_list_t *difference;
/* older ver of package currently installed */
- difference = filelist_operation(alpm_pkg_get_files(p1),
+ difference = _alpm_filelist_operation(alpm_pkg_get_files(p1),
alpm_pkg_get_files(dbpkg), DIFFERENCE);
tmpfiles.count = alpm_list_count(difference);
tmpfiles.files = alpm_list_to_array(difference, tmpfiles.count,
@@ -529,7 +454,7 @@ alpm_list_t *_alpm_db_find_fileconflicts(alpm_handle_t *handle,
/* Check remove list (will we remove the conflicting local file?) */
for(k = rem; k && !resolved_conflict; k = k->next) {
alpm_pkg_t *rempkg = k->data;
- if(rempkg && _alpm_filelist_contains(alpm_pkg_get_files(rempkg),
+ if(rempkg && alpm_filelist_contains(alpm_pkg_get_files(rempkg),
relative_path)) {
_alpm_log(handle, ALPM_LOG_DEBUG,
"local file will be removed, not a conflict\n");
@@ -546,7 +471,7 @@ alpm_list_t *_alpm_db_find_fileconflicts(alpm_handle_t *handle,
alpm_pkg_t *localp2 = _alpm_db_get_pkgfromcache(handle->db_local, p2->name);
/* localp2->files will be removed (target conflicts are handled by CHECK 1) */
- if(localp2 && _alpm_filelist_contains(alpm_pkg_get_files(localp2), filestr)) {
+ if(localp2 && alpm_filelist_contains(alpm_pkg_get_files(localp2), filestr)) {
/* skip removal of file, but not add. this will prevent a second
* package from removing the file when it was already installed
* by its new owner (whether the file is in backup array or not */
@@ -562,7 +487,7 @@ alpm_list_t *_alpm_db_find_fileconflicts(alpm_handle_t *handle,
if(!resolved_conflict && S_ISDIR(lsbuf.st_mode) && dbpkg) {
char *dir = malloc(strlen(filestr) + 2);
sprintf(dir, "%s/", filestr);
- if(_alpm_filelist_contains(alpm_pkg_get_files(dbpkg), dir)) {
+ if(alpm_filelist_contains(alpm_pkg_get_files(dbpkg), dir)) {
_alpm_log(handle, ALPM_LOG_DEBUG,
"checking if all files in %s belong to %s\n",
dir, dbpkg->name);
@@ -579,7 +504,7 @@ alpm_list_t *_alpm_db_find_fileconflicts(alpm_handle_t *handle,
char rpath[PATH_MAX];
if(realpath(path, rpath)) {
const char *relative_rpath = rpath + rootlen;
- if(_alpm_filelist_contains(alpm_pkg_get_files(dbpkg), relative_rpath)) {
+ if(alpm_filelist_contains(alpm_pkg_get_files(dbpkg), relative_rpath)) {
_alpm_log(handle, ALPM_LOG_DEBUG,
"package contained the resolved realpath\n");
resolved_conflict = 1;
@@ -592,7 +517,7 @@ alpm_list_t *_alpm_db_find_fileconflicts(alpm_handle_t *handle,
alpm_list_t *local_pkgs = _alpm_db_get_pkgcache(handle->db_local);
int found = 0;
for(k = local_pkgs; k && !found; k = k->next) {
- if(_alpm_filelist_contains(alpm_pkg_get_files(k->data), filestr)) {
+ if(alpm_filelist_contains(alpm_pkg_get_files(k->data), filestr)) {
found = 1;
}
}