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-rw-r--r--Documentation/config.txt7
-rw-r--r--Documentation/git-update-index.txt5
-rw-r--r--cache.h1
-rw-r--r--config.c4
-rw-r--r--environment.c1
-rw-r--r--read-cache.c2
6 files changed, 19 insertions, 1 deletions
diff --git a/Documentation/config.txt b/Documentation/config.txt
index 1a13abc92..61c376057 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -117,6 +117,13 @@ core.fileMode::
the working copy are ignored; useful on broken filesystems like FAT.
See linkgit:git-update-index[1]. True by default.
+core.trustctime::
+ If false, the ctime differences between the index and the
+ working copy are ignored; useful when the inode change time
+ is regularly modified by something outside Git (file system
+ crawlers and some backup systems).
+ See linkgit:git-update-index[1]. True by default.
+
core.quotepath::
The commands that output paths (e.g. 'ls-files',
'diff'), when not given the `-z` option, will quote
diff --git a/Documentation/git-update-index.txt b/Documentation/git-update-index.txt
index 6b930bc16..1d9d81a70 100644
--- a/Documentation/git-update-index.txt
+++ b/Documentation/git-update-index.txt
@@ -323,6 +323,11 @@ from symbolic link to regular file.
The command looks at `core.ignorestat` configuration variable. See
'Using "assume unchanged" bit' section above.
+The command also looks at `core.trustctime` configuration variable.
+It can be useful when the inode change time is regularly modified by
+something outside Git (file system crawlers and backup systems use
+ctime for marking files processed) (see linkgit:git-config[1]).
+
SEE ALSO
--------
diff --git a/cache.h b/cache.h
index 4b6c0a6c5..2475de9fa 100644
--- a/cache.h
+++ b/cache.h
@@ -423,6 +423,7 @@ extern int delete_ref(const char *, const unsigned char *sha1);
/* Environment bits from configuration mechanism */
extern int trust_executable_bit;
+extern int trust_ctime;
extern int quote_path_fully;
extern int has_symlinks;
extern int ignore_case;
diff --git a/config.c b/config.c
index 1e066c71e..53f04a076 100644
--- a/config.c
+++ b/config.c
@@ -341,6 +341,10 @@ static int git_default_core_config(const char *var, const char *value)
trust_executable_bit = git_config_bool(var, value);
return 0;
}
+ if (!strcmp(var, "core.trustctime")) {
+ trust_ctime = git_config_bool(var, value);
+ return 0;
+ }
if (!strcmp(var, "core.quotepath")) {
quote_path_fully = git_config_bool(var, value);
diff --git a/environment.c b/environment.c
index 4a88a17d5..0c6d11f6a 100644
--- a/environment.c
+++ b/environment.c
@@ -13,6 +13,7 @@ char git_default_email[MAX_GITNAME];
char git_default_name[MAX_GITNAME];
int user_ident_explicitly_given;
int trust_executable_bit = 1;
+int trust_ctime = 1;
int has_symlinks = 1;
int ignore_case;
int assume_unchanged;
diff --git a/read-cache.c b/read-cache.c
index 6c0880337..1cae361c6 100644
--- a/read-cache.c
+++ b/read-cache.c
@@ -197,7 +197,7 @@ static int ce_match_stat_basic(struct cache_entry *ce, struct stat *st)
}
if (ce->ce_mtime != (unsigned int) st->st_mtime)
changed |= MTIME_CHANGED;
- if (ce->ce_ctime != (unsigned int) st->st_ctime)
+ if (trust_ctime && ce->ce_ctime != (unsigned int) st->st_ctime)
changed |= CTIME_CHANGED;
if (ce->ce_uid != (unsigned int) st->st_uid ||