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-rw-r--r--read-cache.c214
1 files changed, 99 insertions, 115 deletions
diff --git a/read-cache.c b/read-cache.c
index 1bbaf1cffb..f38471cac3 100644
--- a/read-cache.c
+++ b/read-cache.c
@@ -10,10 +10,10 @@
#include "dir.h"
#include "tree.h"
#include "commit.h"
-#include "diff.h"
-#include "diffcore.h"
-#include "revision.h"
#include "blob.h"
+#include "resolve-undo.h"
+
+static struct cache_entry *refresh_cache_entry(struct cache_entry *ce, int really);
/* Index extensions.
*
@@ -26,6 +26,7 @@
#define CACHE_EXT(s) ( (s[0]<<24)|(s[1]<<16)|(s[2]<<8)|(s[3]) )
#define CACHE_EXT_TREE 0x54524545 /* "TREE" */
+#define CACHE_EXT_RESOLVE_UNDO 0x52455543 /* "REUC" */
struct index_state the_index;
@@ -91,7 +92,7 @@ static int ce_compare_data(struct cache_entry *ce, struct stat *st)
if (fd >= 0) {
unsigned char sha1[20];
- if (!index_fd(sha1, fd, st, 0, OBJ_BLOB, ce->name))
+ if (!index_fd(sha1, fd, st, 0, OBJ_BLOB, ce->name, 0))
match = hashcmp(sha1, ce->sha1);
/* index_fd() closed the file descriptor already */
}
@@ -156,7 +157,7 @@ static int ce_modified_check_fs(struct cache_entry *ce, struct stat *st)
return 0;
}
-int is_empty_blob_sha1(const unsigned char *sha1)
+static int is_empty_blob_sha1(const unsigned char *sha1)
{
static const unsigned char empty_blob_sha1[20] = {
0xe6,0x9d,0xe2,0x9b,0xb2,0xd1,0xd6,0x43,0x4b,0x8b,
@@ -259,12 +260,17 @@ int ie_match_stat(const struct index_state *istate,
{
unsigned int changed;
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;
/*
* If it's marked as always valid in the index, it's
* valid whatever the checked-out copy says.
+ *
+ * skip-worktree has the same effect with higher precedence
*/
+ if (!ignore_skip_worktree && ce_skip_worktree(ce))
+ return 0;
if (!ignore_valid && (ce->ce_flags & CE_VALID))
return 0;
@@ -449,6 +455,7 @@ int remove_index_entry_at(struct index_state *istate, int pos)
{
struct cache_entry *ce = istate->cache[pos];
+ record_resolve_undo(istate, ce);
remove_name_hash(ce);
istate->cache_changed = 1;
istate->cache_nr--;
@@ -564,7 +571,7 @@ int add_to_index(struct index_state *istate, const char *path, struct stat *st,
int size, namelen, was_same;
mode_t st_mode = st->st_mode;
struct cache_entry *ce, *alias;
- unsigned ce_option = CE_MATCH_IGNORE_VALID|CE_MATCH_RACY_IS_DIRTY;
+ unsigned ce_option = CE_MATCH_IGNORE_VALID|CE_MATCH_IGNORE_SKIP_WORKTREE|CE_MATCH_RACY_IS_DIRTY;
int verbose = flags & (ADD_CACHE_VERBOSE | ADD_CACHE_PRETEND);
int pretend = flags & ADD_CACHE_PRETEND;
int intent_only = flags & ADD_CACHE_INTENT;
@@ -601,11 +608,35 @@ int add_to_index(struct index_state *istate, const char *path, struct stat *st,
ce->ce_mode = ce_mode_from_stat(ent, st_mode);
}
+ /* When core.ignorecase=true, determine if a directory of the same name but differing
+ * case already exists within the Git repository. If it does, ensure the directory
+ * case of the file being added to the repository matches (is folded into) the existing
+ * entry's directory case.
+ */
+ if (ignore_case) {
+ const char *startPtr = ce->name;
+ const char *ptr = startPtr;
+ while (*ptr) {
+ while (*ptr && *ptr != '/')
+ ++ptr;
+ if (*ptr == '/') {
+ struct cache_entry *foundce;
+ ++ptr;
+ foundce = index_name_exists(&the_index, ce->name, ptr - ce->name, ignore_case);
+ if (foundce) {
+ memcpy((void *)startPtr, foundce->name + (startPtr - ce->name), ptr - startPtr);
+ startPtr = ptr;
+ }
+ }
+ }
+ }
+
alias = index_name_exists(istate, ce->name, ce_namelen(ce), ignore_case);
if (alias && !ce_stage(alias) && !ie_match_stat(istate, alias, st, ce_option)) {
/* Nothing changed, really */
free(ce);
- ce_mark_uptodate(alias);
+ if (!S_ISGITLINK(alias->ce_mode))
+ ce_mark_uptodate(alias);
alias->ce_flags |= CE_ADDED;
return 0;
}
@@ -675,30 +706,9 @@ int ce_same_name(struct cache_entry *a, struct cache_entry *b)
return ce_namelen(b) == len && !memcmp(a->name, b->name, len);
}
-int ce_path_match(const struct cache_entry *ce, const char **pathspec)
+int ce_path_match(const struct cache_entry *ce, const struct pathspec *pathspec)
{
- const char *match, *name;
- int len;
-
- if (!pathspec)
- return 1;
-
- len = ce_namelen(ce);
- name = ce->name;
- while ((match = *pathspec++) != NULL) {
- int matchlen = strlen(match);
- if (matchlen > len)
- continue;
- if (memcmp(name, match, matchlen))
- continue;
- if (matchlen && name[matchlen-1] == '/')
- return 1;
- if (name[matchlen] == '/' || !name[matchlen])
- return 1;
- if (!matchlen)
- return 1;
- }
- return 0;
+ return match_pathspec_depth(pathspec, ce->name, ce_namelen(ce), 0, NULL);
}
/*
@@ -1000,14 +1010,20 @@ static struct cache_entry *refresh_cache_ent(struct index_state *istate,
struct cache_entry *updated;
int changed, size;
int ignore_valid = options & CE_MATCH_IGNORE_VALID;
+ int ignore_skip_worktree = options & CE_MATCH_IGNORE_SKIP_WORKTREE;
if (ce_uptodate(ce))
return ce;
/*
- * CE_VALID means the user promised us that the change to
- * the work tree does not matter and told us not to worry.
+ * CE_VALID or CE_SKIP_WORKTREE means the user promised us
+ * that the change to the work tree does not matter and told
+ * us not to worry.
*/
+ if (!ignore_skip_worktree && ce_skip_worktree(ce)) {
+ ce_mark_uptodate(ce);
+ return ce;
+ }
if (!ignore_valid && (ce->ce_flags & CE_VALID)) {
ce_mark_uptodate(ce);
return ce;
@@ -1037,7 +1053,8 @@ 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.
*/
- ce_mark_uptodate(ce);
+ if (!S_ISGITLINK(ce->ce_mode))
+ ce_mark_uptodate(ce);
return ce;
}
}
@@ -1066,7 +1083,7 @@ static struct cache_entry *refresh_cache_ent(struct index_state *istate,
}
static void show_file(const char * fmt, const char * name, int in_porcelain,
- int * first, char *header_msg)
+ int * first, const char *header_msg)
{
if (in_porcelain && *first && header_msg) {
printf("%s\n", header_msg);
@@ -1076,7 +1093,7 @@ static void show_file(const char * fmt, const char * name, int in_porcelain,
}
int refresh_index(struct index_state *istate, unsigned int flags, const char **pathspec,
- char *seen, char *header_msg)
+ char *seen, const char *header_msg)
{
int i;
int has_errors = 0;
@@ -1141,7 +1158,7 @@ int refresh_index(struct index_state *istate, unsigned int flags, const char **p
return has_errors;
}
-struct cache_entry *refresh_cache_entry(struct cache_entry *ce, int really)
+static struct cache_entry *refresh_cache_entry(struct cache_entry *ce, int really)
{
return refresh_cache_ent(&the_index, ce, really, NULL);
}
@@ -1170,6 +1187,9 @@ static int read_index_extension(struct index_state *istate,
case CACHE_EXT_TREE:
istate->cache_tree = cache_tree_read(data, sz);
break;
+ case CACHE_EXT_RESOLVE_UNDO:
+ istate->resolve_undo = resolve_undo_read(data, sz);
+ break;
default:
if (*ext < 'A' || 'Z' < *ext)
return error("index uses %.4s extension, which we do not understand",
@@ -1322,7 +1342,7 @@ int read_index_from(struct index_state *istate, const char *path)
* extension name (4-byte) and section length
* in 4-byte network byte order.
*/
- unsigned long extsize;
+ uint32_t extsize;
memcpy(&extsize, (char *)mmap + src_offset + 4, 4);
extsize = ntohl(extsize);
if (read_index_extension(istate,
@@ -1349,6 +1369,7 @@ int is_index_unborn(struct index_state *istate)
int discard_index(struct index_state *istate)
{
+ resolve_undo_clear_index(istate);
istate->cache_nr = 0;
istate->cache_changed = 0;
istate->timestamp.sec = 0;
@@ -1497,6 +1518,7 @@ static int ce_write_entry(git_SHA_CTX *c, int fd, struct cache_entry *ce)
int size = ondisk_ce_size(ce);
struct ondisk_cache_entry *ondisk = xcalloc(1, size);
char *name;
+ int result;
ondisk->ctime.sec = htonl(ce->ce_ctime.sec);
ondisk->mtime.sec = htonl(ce->ce_mtime.sec);
@@ -1520,7 +1542,34 @@ static int ce_write_entry(git_SHA_CTX *c, int fd, struct cache_entry *ce)
name = ondisk->name;
memcpy(name, ce->name, ce_namelen(ce));
- return ce_write(c, fd, ondisk, size);
+ result = ce_write(c, fd, ondisk, size);
+ free(ondisk);
+ return result;
+}
+
+static int has_racy_timestamp(struct index_state *istate)
+{
+ int entries = istate->cache_nr;
+ int i;
+
+ for (i = 0; i < entries; i++) {
+ struct cache_entry *ce = istate->cache[i];
+ if (is_racy_timestamp(istate, ce))
+ return 1;
+ }
+ return 0;
+}
+
+/*
+ * Opportunisticly update the index but do not complain if we can't
+ */
+void update_index_if_able(struct index_state *istate, struct lock_file *lockfile)
+{
+ if ((istate->cache_changed || has_racy_timestamp(istate)) &&
+ !write_index(istate, lockfile->fd))
+ commit_locked_index(lockfile);
+ else
+ rollback_lock_file(lockfile);
}
int write_index(struct index_state *istate, int newfd)
@@ -1574,6 +1623,17 @@ int write_index(struct index_state *istate, int newfd)
if (err)
return -1;
}
+ if (istate->resolve_undo) {
+ struct strbuf sb = STRBUF_INIT;
+
+ resolve_undo_write(&sb, istate->resolve_undo);
+ err = write_index_ext_header(&c, newfd, CACHE_EXT_RESOLVE_UNDO,
+ sb.len) < 0
+ || ce_write(&c, newfd, sb.buf, sb.len) < 0;
+ strbuf_release(&sb);
+ if (err)
+ return -1;
+ }
if (ce_flush(&c, newfd) || fstat(newfd, &st))
return -1;
@@ -1606,9 +1666,8 @@ int read_index_unmerged(struct index_state *istate)
len = strlen(ce->name);
size = cache_entry_size(len);
new_ce = xcalloc(1, size);
- hashcpy(new_ce->sha1, ce->sha1);
memcpy(new_ce->name, ce->name, len);
- new_ce->ce_flags = create_ce_flags(len, 0);
+ new_ce->ce_flags = create_ce_flags(len, 0) | CE_CONFLICTED;
new_ce->ce_mode = ce->ce_mode;
if (add_index_entry(istate, new_ce, 0))
return error("%s: cannot drop to stage #0",
@@ -1618,81 +1677,6 @@ int read_index_unmerged(struct index_state *istate)
return unmerged;
}
-struct update_callback_data
-{
- int flags;
- int add_errors;
-};
-
-static void update_callback(struct diff_queue_struct *q,
- struct diff_options *opt, void *cbdata)
-{
- int i;
- struct update_callback_data *data = cbdata;
-
- for (i = 0; i < q->nr; i++) {
- struct diff_filepair *p = q->queue[i];
- const char *path = p->one->path;
- switch (p->status) {
- default:
- die("unexpected diff status %c", p->status);
- case DIFF_STATUS_UNMERGED:
- /*
- * ADD_CACHE_IGNORE_REMOVAL is unset if "git
- * add -u" is calling us, In such a case, a
- * missing work tree file needs to be removed
- * if there is an unmerged entry at stage #2,
- * but such a diff record is followed by
- * another with DIFF_STATUS_DELETED (and if
- * there is no stage #2, we won't see DELETED
- * nor MODIFIED). We can simply continue
- * either way.
- */
- if (!(data->flags & ADD_CACHE_IGNORE_REMOVAL))
- continue;
- /*
- * Otherwise, it is "git add path" is asking
- * to explicitly add it; we fall through. A
- * missing work tree file is an error and is
- * caught by add_file_to_index() in such a
- * case.
- */
- case DIFF_STATUS_MODIFIED:
- case DIFF_STATUS_TYPE_CHANGED:
- if (add_file_to_index(&the_index, path, data->flags)) {
- if (!(data->flags & ADD_CACHE_IGNORE_ERRORS))
- die("updating files failed");
- data->add_errors++;
- }
- break;
- case DIFF_STATUS_DELETED:
- if (data->flags & ADD_CACHE_IGNORE_REMOVAL)
- break;
- if (!(data->flags & ADD_CACHE_PRETEND))
- remove_file_from_index(&the_index, path);
- if (data->flags & (ADD_CACHE_PRETEND|ADD_CACHE_VERBOSE))
- printf("remove '%s'\n", path);
- break;
- }
- }
-}
-
-int add_files_to_cache(const char *prefix, const char **pathspec, int flags)
-{
- struct update_callback_data data;
- struct rev_info rev;
- init_revisions(&rev, prefix);
- setup_revisions(0, NULL, &rev, NULL);
- rev.prune_data = pathspec;
- rev.diffopt.output_format = DIFF_FORMAT_CALLBACK;
- rev.diffopt.format_callback = update_callback;
- data.flags = flags;
- data.add_errors = 0;
- rev.diffopt.format_callback_data = &data;
- run_diff_files(&rev, DIFF_RACY_IS_MODIFIED);
- return !!data.add_errors;
-}
-
/*
* Returns 1 if the path is an "other" path with respect to
* the index; that is, the path is not mentioned in the index at all,
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-18 11:01:40 +0000