undef/git-commit-vandalism
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Merge branch 'bp/untracked-cache-noflush'

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Writing out the index file when the only thing that changed in it
is the untracked cache information is often wasteful, and this has
been optimized out.

* bp/untracked-cache-noflush:
  untracked cache: use git_env_bool() not getenv() for customization
  dir.c: don't flag the index as dirty for changes to the untracked cache
This commit is contained in:
Junio C Hamano 2018-03-08 12:36:30 -08:00
commit cdda65acae
2 changed files with 16 additions and 2 deletions
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15
dir.c
View File

@ -2172,8 +2172,13 @@ static struct untracked_cache_dir *validate_untracked_cache(struct dir_struct *d
const struct pathspec *pathspec)
{
struct untracked_cache_dir *root;
static int untracked_cache_disabled = -1;
if (!dir->untracked || getenv("GIT_DISABLE_UNTRACKED_CACHE"))
if (!dir->untracked)
return NULL;
if (untracked_cache_disabled < 0)
untracked_cache_disabled = git_env_bool("GIT_DISABLE_UNTRACKED_CACHE", 0);
if (untracked_cache_disabled)
return NULL;
/*
@ -2297,7 +2302,12 @@ int read_directory(struct dir_struct *dir, struct index_state *istate,
trace_performance_since(start, "read directory %.*s", len, path);
if (dir->untracked) {
static int force_untracked_cache = -1;
static struct trace_key trace_untracked_stats = TRACE_KEY_INIT(UNTRACKED_STATS);
if (force_untracked_cache < 0)
force_untracked_cache =
git_env_bool("GIT_FORCE_UNTRACKED_CACHE", 0);
trace_printf_key(&trace_untracked_stats,
"node creation: %u\n"
"gitignore invalidation: %u\n"
@ -2307,7 +2317,8 @@ int read_directory(struct dir_struct *dir, struct index_state *istate,
dir->untracked->gitignore_invalidated,
dir->untracked->dir_invalidated,
dir->untracked->dir_opened);
if (dir->untracked == istate->untracked &&
if (force_untracked_cache &&
dir->untracked == istate->untracked &&
(dir->untracked->dir_opened ||
dir->untracked->gitignore_invalidated ||
dir->untracked->dir_invalidated))

3
t/t7063-status-untracked-cache.sh
View File

@ -14,6 +14,9 @@ test_description='test untracked cache'
# See <20160803174522.5571-1-pclouds@gmail.com> if you want to know
# more.
GIT_FORCE_UNTRACKED_CACHE=true
export GIT_FORCE_UNTRACKED_CACHE
sync_mtime () {
find . -type d -ls >/dev/null
}