git/read-cache.c, branch v2.8.2

Merge branch 'cc/untracked'

2016-02-10T22:20:06Z

Update the untracked cache subsystem and change its primary UI from "git update-index" to "git config". * cc/untracked: t7063: add tests for core.untrackedCache test-dump-untracked-cache: don't modify the untracked cache config: add core.untrackedCache dir: simplify untracked cache "ident" field dir: add remove_untracked_cache() dir: add {new,add}_untracked_cache() update-index: move 'uc' var declaration update-index: add untracked cache notifications update-index: add --test-untracked-cache update-index: use enum for untracked cache options dir: free untracked cache when removing it

config: add core.untrackedCache

2016-01-27T20:30:00Z

When we know that mtime on directory as given by the environment is usable for the purpose of untracked cache, we may want the untracked cache to be always used without any mtime test or kernel name check being performed. Also when we know that mtime is not usable for the purpose of untracked cache, for example because the repo is shared over a network file system, we may want the untracked-cache to be automatically removed from the index. Allow the user to express such preference by setting the 'core.untrackedCache' configuration variable, which can take 'keep', 'false', or 'true' and default to 'keep'. When read_index_from() is called, it now adds or removes the untracked cache in the index to respect the value of this variable. So it does nothing if the value is `keep` or if the variable is unset; it adds the untracked cache if the value is `true`; and it removes the cache if the value is `false`. `git update-index --[no-|force-]untracked-cache` still adds the untracked cache to, or removes it, from the index, but this shows a warning if it goes against the value of core.untrackedCache, because the next time the index is read the untracked cache will be added or removed if the configuration is set to do so. Also `--untracked-cache` used to check that the underlying operating system and file system change `st_mtime` field of a directory if files are added or deleted in that directory. But because those tests take a long time, `--untracked-cache` no longer performs them. Instead, there is now `--test-untracked-cache` to perform the tests. This change makes `--untracked-cache` the same as `--force-untracked-cache`. This last change is backward incompatible and should be mentioned in the release notes. Helped-by: Duy Nguyen Helped-by: Torsten Bögershausen Helped-by: Stefan Beller Signed-off-by: Christian Couder Signed-off-by: Ævar Arnfjörð Bjarmason read-cache: Duy'sfixup Signed-off-by: Christian Couder Signed-off-by: Junio C Hamano

Merge branch 'nd/ita-cleanup'

2016-01-20T19:43:25Z

Paths that have been told the index about with "add -N" are not quite yet in the index, but a few commands behaved as if they already are in a harmful way. * nd/ita-cleanup: grep: make it clear i-t-a entries are ignored add and use a convenience macro ce_intent_to_add() blame: remove obsolete comment

Merge branch 'dt/name-hash-dir-entry-fix'

2015-10-29T20:59:19Z

The name-hash subsystem that is used to cope with case insensitive filesystems keeps track of directories and their on-filesystem cases for all the paths in the index by holding a pointer to a randomly chosen cache entry that is inside the directory (for its ce->ce_name component). This pointer was not updated even when the cache entry was removed from the index, leading to use after free. This was fixed by recording the path for each directory instead of borrowing cache entries and restructuring the API somewhat. * dt/name-hash-dir-entry-fix: name-hash: don't reuse cache_entry in dir_entry

Merge branch 'tk/sigchain-unnecessary-post-tempfile'

2015-10-29T20:59:18Z

Remove no-longer used #include. * tk/sigchain-unnecessary-post-tempfile: shallow: remove unused #include "sigchain.h" read-cache: remove unused #include "sigchain.h" diff: remove unused #include "sigchain.h" credential-cache--daemon: remove unused #include "sigchain.h"

read-cache: remove unused #include "sigchain.h"

2015-10-22T18:12:37Z

After switching to use the tempfile module in commit f6ecc62d (write_shared_index(): use tempfile module), no declarations from sigchain.h are used in read-cache.c anymore. Thus, remove the #include. Signed-off-by: Tobias Klauser Signed-off-by: Junio C Hamano

name-hash: don't reuse cache_entry in dir_entry

2015-10-21T19:47:38Z

Stop reusing cache_entry in dir_entry; doing so causes a use-after-free bug. During merges, we free entries that we no longer need in the destination index. But those entries might have also been stored in the dir_entry cache, and when a later call to add_to_index found them, they would be used after being freed. To prevent this, change dir_entry to store a copy of the name instead of a pointer to a cache_entry. This entails some refactoring of code that expects the cache_entry. Keith McGuigan diagnosed this bug and wrote the initial patch, but this version does not use any of Keith's code. Helped-by: Keith McGuigan Helped-by: Junio C Hamano Signed-off-by: David Turner Signed-off-by: Junio C Hamano

add and use a convenience macro ce_intent_to_add()

2015-09-07T03:01:13Z

Signed-off-by: Nguyễn Thái Ngọc Duy Signed-off-by: Junio C Hamano

read-cache: fix indentation in read_index_from

2015-08-31T19:31:00Z

Signed-off-by: Stefan Beller Signed-off-by: Junio C Hamano

Merge branch 'mh/tempfile'

2015-08-25T21:57:09Z

The "lockfile" API has been rebuilt on top of a new "tempfile" API. * mh/tempfile: credential-cache--daemon: use tempfile module credential-cache--daemon: delete socket from main() gc: use tempfile module to handle gc.pid file lock_repo_for_gc(): compute the path to "gc.pid" only once diff: use tempfile module setup_temporary_shallow(): use tempfile module write_shared_index(): use tempfile module register_tempfile(): new function to handle an existing temporary file tempfile: add several functions for creating temporary files prepare_tempfile_object(): new function, extracted from create_tempfile() tempfile: a new module for handling temporary files commit_lock_file(): use get_locked_file_path() lockfile: add accessor get_lock_file_path() lockfile: add accessors get_lock_file_fd() and get_lock_file_fp() create_bundle(): duplicate file descriptor to avoid closing it twice lockfile: move documentation to lockfile.h and lockfile.c