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Resolve file paths during inter-package conflict check

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File paths are resolved if necessary during inter-package conflict
checks so that packages carrying the same effective file due to
directory symlinks on the filesystem are flagged as conflicting.

Signed-off-by: Allan McRae <allan@archlinux.org>
This commit is contained in:
Allan McRae 2012-07-20 22:25:18 +10:00
parent 28d404f16a
commit 88e7ea421e
5 changed files with 36 additions and 12 deletions
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5
lib/libalpm/conflict.c
View File

@ -361,12 +361,17 @@ alpm_list_t *_alpm_db_find_fileconflicts(alpm_handle_t *handle,
int percent = (current * 100) / numtargs;
PROGRESS(handle, ALPM_PROGRESS_CONFLICTS_START, "", percent,
numtargs, current);
_alpm_filelist_resolve(handle, alpm_pkg_get_files(p1));
/* CHECK 1: check every target against every target */
_alpm_log(handle, ALPM_LOG_DEBUG, "searching for file conflicts: %s\n",
p1->name);
for(j = i->next; j; j = j->next) {
alpm_list_t *common_files;
alpm_pkg_t *p2 = j->data;
_alpm_filelist_resolve(handle, alpm_pkg_get_files(p2));
common_files = _alpm_filelist_intersection(alpm_pkg_get_files(p1),
alpm_pkg_get_files(p2));

13
lib/libalpm/filelist.c
View File

@ -268,21 +268,18 @@ alpm_list_t *_alpm_filelist_intersection(alpm_filelist_t *filesA,
int cmp, isdirA, isdirB;
char *strA, *strB;
alpm_file_t *fileA = filesA->files + ctrA;
alpm_file_t *fileB = filesB->files + ctrB;
isdirA = 0;
strA = fileA->name;
strA = filesA->resolved_path[ctrA];
if(strA[strlen(strA)-1] == '/') {
isdirA = 1;
strA = strndup(fileA->name, strlen(strA)-1);
strA = strndup(filesA->resolved_path[ctrA], strlen(strA)-1);
}
isdirB = 0;
strB = fileB->name;
strB = filesB->resolved_path[ctrB];
if(strB[strlen(strB)-1] == '/') {
isdirB = 1;
strB = strndup(fileB->name, strlen(strB)-1);
strB = strndup(filesB->resolved_path[ctrB], strlen(strB)-1);
}
cmp = strcmp(strA, strB);
@ -300,7 +297,7 @@ alpm_list_t *_alpm_filelist_intersection(alpm_filelist_t *filesA,
/* when not directories, item in both qualifies as an intersect */
if(! (isdirA && isdirB)) {
ret = alpm_list_add(ret, fileA);
ret = alpm_list_add(ret, filesA->files + ctrA);
}
ctrA++;
ctrB++;

2
test/pacman/tests/fileconflict001.py
View File

@ -25,5 +25,3 @@ self.addrule("!PKG_EXIST=pkg1")
self.addrule("!PKG_EXIST=pkg2")
self.addrule("FILE_EXIST=dir/realdir/realfile")
self.addrule("!FILE_EXIST=dir/realdir/file")
self.expectfailure = True

2
test/pacman/tests/fileconflict016.py
View File

@ -22,5 +22,3 @@ self.args = "-S pkg1 pkg2"
self.addrule("PACMAN_RETCODE=1")
self.addrule("!PKG_EXIST=pkg1")
self.addrule("!PKG_EXIST=pkg2")
self.expectfailure = True

26
test/pacman/tests/fileconflict017.py Normal file
View File

@ -0,0 +1,26 @@
self.description = "file conflict with same effective path across packages (directory symlink - deep)"
lp1 = pmpkg("filesystem", "1.0-1")
lp1.files = ["usr/",
"usr/lib/",
"lib -> usr/lib/"]
self.addpkg2db("local", lp1)
p1 = pmpkg("pkg1")
p1.files = ["lib/",
"lib/foo/",
"lib/foo/bar"]
self.addpkg2db("sync", p1)
p2 = pmpkg("pkg2")
p2.files = ["usr/",
"usr/lib/",
"usr/lib/foo/",
"usr/lib/foo/bar"]
self.addpkg2db("sync", p2)
self.args = "-S pkg1 pkg2"
self.addrule("PACMAN_RETCODE=1")
self.addrule("!PKG_EXIST=pkg1")
self.addrule("!PKG_EXIST=pkg2")