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Diffstat (limited to 'read-cache.c')
-rw-r--r--read-cache.c45
1 files changed, 40 insertions, 5 deletions
diff --git a/read-cache.c b/read-cache.c
index 40da87e..05c0a33 100644
--- a/read-cache.c
+++ b/read-cache.c
@@ -19,6 +19,7 @@
#include "varint.h"
#include "split-index.h"
#include "utf8.h"
+#include "fsmonitor.h"
/* Mask for the name length in ce_flags in the on-disk index */
@@ -38,11 +39,12 @@
#define CACHE_EXT_RESOLVE_UNDO 0x52455543 /* "REUC" */
#define CACHE_EXT_LINK 0x6c696e6b /* "link" */
#define CACHE_EXT_UNTRACKED 0x554E5452 /* "UNTR" */
+#define CACHE_EXT_FSMONITOR 0x46534D4E /* "FSMN" */
/* changes that can be kept in $GIT_DIR/index (basically all extensions) */
#define EXTMASK (RESOLVE_UNDO_CHANGED | CACHE_TREE_CHANGED | \
CE_ENTRY_ADDED | CE_ENTRY_REMOVED | CE_ENTRY_CHANGED | \
- SPLIT_INDEX_ORDERED | UNTRACKED_CHANGED)
+ SPLIT_INDEX_ORDERED | UNTRACKED_CHANGED | FSMONITOR_CHANGED)
struct index_state the_index;
static const char *alternate_index_output;
@@ -62,6 +64,7 @@ static void replace_index_entry(struct index_state *istate, int nr, struct cache
free(old);
set_index_entry(istate, nr, ce);
ce->ce_flags |= CE_UPDATE_IN_BASE;
+ mark_fsmonitor_invalid(istate, ce);
istate->cache_changed |= CE_ENTRY_CHANGED;
}
@@ -150,8 +153,10 @@ void fill_stat_cache_info(struct cache_entry *ce, struct stat *st)
if (assume_unchanged)
ce->ce_flags |= CE_VALID;
- if (S_ISREG(st->st_mode))
+ if (S_ISREG(st->st_mode)) {
ce_mark_uptodate(ce);
+ mark_fsmonitor_valid(ce);
+ }
}
static int ce_compare_data(const struct cache_entry *ce, struct stat *st)
@@ -300,7 +305,7 @@ int match_stat_data_racy(const struct index_state *istate,
return match_stat_data(sd, st);
}
-int ie_match_stat(const struct index_state *istate,
+int ie_match_stat(struct index_state *istate,
const struct cache_entry *ce, struct stat *st,
unsigned int options)
{
@@ -308,7 +313,10 @@ int ie_match_stat(const struct index_state *istate,
int ignore_valid = options & CE_MATCH_IGNORE_VALID;
int ignore_skip_worktree = options & CE_MATCH_IGNORE_SKIP_WORKTREE;
int assume_racy_is_modified = options & CE_MATCH_RACY_IS_DIRTY;
+ int ignore_fsmonitor = options & CE_MATCH_IGNORE_FSMONITOR;
+ if (!ignore_fsmonitor)
+ refresh_fsmonitor(istate);
/*
* If it's marked as always valid in the index, it's
* valid whatever the checked-out copy says.
@@ -319,6 +327,8 @@ int ie_match_stat(const struct index_state *istate,
return 0;
if (!ignore_valid && (ce->ce_flags & CE_VALID))
return 0;
+ if (!ignore_fsmonitor && (ce->ce_flags & CE_FSMONITOR_VALID))
+ return 0;
/*
* Intent-to-add entries have not been added, so the index entry
@@ -356,7 +366,7 @@ int ie_match_stat(const struct index_state *istate,
return changed;
}
-int ie_modified(const struct index_state *istate,
+int ie_modified(struct index_state *istate,
const struct cache_entry *ce,
struct stat *st, unsigned int options)
{
@@ -777,6 +787,7 @@ int chmod_index_entry(struct index_state *istate, struct cache_entry *ce,
}
cache_tree_invalidate_path(istate, ce->name);
ce->ce_flags |= CE_UPDATE_IN_BASE;
+ mark_fsmonitor_invalid(istate, ce);
istate->cache_changed |= CE_ENTRY_CHANGED;
return 0;
@@ -1228,10 +1239,13 @@ static struct cache_entry *refresh_cache_ent(struct index_state *istate,
int ignore_valid = options & CE_MATCH_IGNORE_VALID;
int ignore_skip_worktree = options & CE_MATCH_IGNORE_SKIP_WORKTREE;
int ignore_missing = options & CE_MATCH_IGNORE_MISSING;
+ int ignore_fsmonitor = options & CE_MATCH_IGNORE_FSMONITOR;
if (!refresh || ce_uptodate(ce))
return ce;
+ if (!ignore_fsmonitor)
+ refresh_fsmonitor(istate);
/*
* CE_VALID or CE_SKIP_WORKTREE means the user promised us
* that the change to the work tree does not matter and told
@@ -1245,6 +1259,10 @@ static struct cache_entry *refresh_cache_ent(struct index_state *istate,
ce_mark_uptodate(ce);
return ce;
}
+ if (!ignore_fsmonitor && (ce->ce_flags & CE_FSMONITOR_VALID)) {
+ ce_mark_uptodate(ce);
+ return ce;
+ }
if (has_symlink_leading_path(ce->name, ce_namelen(ce))) {
if (ignore_missing)
@@ -1282,8 +1300,10 @@ static struct cache_entry *refresh_cache_ent(struct index_state *istate,
* because CE_UPTODATE flag is in-core only;
* we are not going to write this change out.
*/
- if (!S_ISGITLINK(ce->ce_mode))
+ if (!S_ISGITLINK(ce->ce_mode)) {
ce_mark_uptodate(ce);
+ mark_fsmonitor_valid(ce);
+ }
return ce;
}
}
@@ -1391,6 +1411,7 @@ int refresh_index(struct index_state *istate, unsigned int flags,
*/
ce->ce_flags &= ~CE_VALID;
ce->ce_flags |= CE_UPDATE_IN_BASE;
+ mark_fsmonitor_invalid(istate, ce);
istate->cache_changed |= CE_ENTRY_CHANGED;
}
if (quiet)
@@ -1550,6 +1571,9 @@ static int read_index_extension(struct index_state *istate,
case CACHE_EXT_UNTRACKED:
istate->untracked = read_untracked_extension(data, sz);
break;
+ case CACHE_EXT_FSMONITOR:
+ read_fsmonitor_extension(istate, data, sz);
+ break;
default:
if (*ext < 'A' || 'Z' < *ext)
return error("index uses %.4s extension, which we do not understand",
@@ -1722,6 +1746,7 @@ static void post_read_index_from(struct index_state *istate)
check_ce_order(istate);
tweak_untracked_cache(istate);
tweak_split_index(istate);
+ tweak_fsmonitor(istate);
}
/* remember to discard_cache() before reading a different cache! */
@@ -2306,6 +2331,16 @@ static int do_write_index(struct index_state *istate, struct tempfile *tempfile,
if (err)
return -1;
}
+ if (!strip_extensions && istate->fsmonitor_last_update) {
+ struct strbuf sb = STRBUF_INIT;
+
+ write_fsmonitor_extension(&sb, istate);
+ err = write_index_ext_header(&c, newfd, CACHE_EXT_FSMONITOR, sb.len) < 0
+ || ce_write(&c, newfd, sb.buf, sb.len) < 0;
+ strbuf_release(&sb);
+ if (err)
+ return -1;
+ }
if (ce_flush(&c, newfd, istate->sha1))
return -1;