#include "cache-tree.h"
#include "refs.h"
#include "dir.h"
+#include "object-store.h"
#include "tree.h"
#include "commit.h"
#include "blob.h"
replace_index_entry_in_base(istate, old, ce);
remove_name_hash(istate, old);
free(old);
+ ce->ce_flags &= ~CE_HASHED;
set_index_entry(istate, nr, ce);
ce->ce_flags |= CE_UPDATE_IN_BASE;
mark_fsmonitor_invalid(istate, ce);
void rename_index_entry_at(struct index_state *istate, int nr, const char *new_name)
{
- struct cache_entry *old = istate->cache[nr], *new;
+ struct cache_entry *old_entry = istate->cache[nr], *new_entry;
int namelen = strlen(new_name);
- new = xmalloc(cache_entry_size(namelen));
- copy_cache_entry(new, old);
- new->ce_flags &= ~CE_HASHED;
- new->ce_namelen = namelen;
- new->index = 0;
- memcpy(new->name, new_name, namelen + 1);
+ new_entry = xmalloc(cache_entry_size(namelen));
+ copy_cache_entry(new_entry, old_entry);
+ new_entry->ce_flags &= ~CE_HASHED;
+ new_entry->ce_namelen = namelen;
+ new_entry->index = 0;
+ memcpy(new_entry->name, new_name, namelen + 1);
- cache_tree_invalidate_path(istate, old->name);
- untracked_cache_remove_from_index(istate, old->name);
+ cache_tree_invalidate_path(istate, old_entry->name);
+ untracked_cache_remove_from_index(istate, old_entry->name);
remove_index_entry_at(istate, nr);
- add_index_entry(istate, new, ADD_CACHE_OK_TO_ADD|ADD_CACHE_OK_TO_REPLACE);
+ add_index_entry(istate, new_entry, ADD_CACHE_OK_TO_ADD|ADD_CACHE_OK_TO_REPLACE);
}
void fill_stat_data(struct stat_data *sd, struct stat *st)
if (strbuf_readlink(&sb, ce->name, expected_size))
return -1;
- buffer = read_sha1_file(ce->oid.hash, &type, &size);
+ buffer = read_object_file(&ce->oid, &type, &size);
if (buffer) {
if (size == sb.len)
match = memcmp(buffer, sb.buf, size);
struct cache_entry *alias)
{
int len;
- struct cache_entry *new;
+ struct cache_entry *new_entry;
if (alias->ce_flags & CE_ADDED)
die("Will not add file alias '%s' ('%s' already exists in index)", ce->name, alias->name);
/* Ok, create the new entry using the name of the existing alias */
len = ce_namelen(alias);
- new = xcalloc(1, cache_entry_size(len));
- memcpy(new->name, alias->name, len);
- copy_cache_entry(new, ce);
+ new_entry = xcalloc(1, cache_entry_size(len));
+ memcpy(new_entry->name, alias->name, len);
+ copy_cache_entry(new_entry, ce);
save_or_free_index_entry(istate, ce);
- return new;
+ return new_entry;
}
void set_object_name_for_intent_to_add_entry(struct cache_entry *ce)
{
- unsigned char sha1[20];
- if (write_sha1_file("", 0, blob_type, sha1))
+ struct object_id oid;
+ if (write_object_file("", 0, blob_type, &oid))
die("cannot create an empty blob in the object database");
- hashcpy(ce->oid.hash, sha1);
+ oidcpy(&ce->oid, &oid);
}
int add_to_index(struct index_state *istate, const char *path, struct stat *st, int flags)
int size, len;
struct cache_entry *ce, *ret;
- if (!verify_path(path)) {
+ if (!verify_path(path, mode)) {
error("Invalid path '%s'", path);
return NULL;
}
* Also, we don't want double slashes or slashes at the
* end that can make pathnames ambiguous.
*/
-static int verify_dotfile(const char *rest)
+static int verify_dotfile(const char *rest, unsigned mode)
{
/*
* The first character was '.', but that
switch (*rest) {
/*
- * ".git" followed by NUL or slash is bad. This
- * shares the path end test with the ".." case.
+ * ".git" followed by NUL or slash is bad. Note that we match
+ * case-insensitively here, even if ignore_case is not set.
+ * This outlaws ".GIT" everywhere out of an abundance of caution,
+ * since there's really no good reason to allow it.
+ *
+ * Once we've seen ".git", we can also find ".gitmodules", etc (also
+ * case-insensitively).
*/
case 'g':
case 'G':
break;
if (rest[2] != 't' && rest[2] != 'T')
break;
- rest += 2;
- /* fallthrough */
+ if (rest[3] == '\0' || is_dir_sep(rest[3]))
+ return 0;
+ if (S_ISLNK(mode)) {
+ rest += 3;
+ if (skip_iprefix(rest, "modules", &rest) &&
+ (*rest == '\0' || is_dir_sep(*rest)))
+ return 0;
+ }
+ break;
case '.':
if (rest[1] == '\0' || is_dir_sep(rest[1]))
return 0;
return 1;
}
-int verify_path(const char *path)
+int verify_path(const char *path, unsigned mode)
{
char c;
return 1;
if (is_dir_sep(c)) {
inside:
- if (protect_hfs && is_hfs_dotgit(path))
- return 0;
- if (protect_ntfs && is_ntfs_dotgit(path))
- return 0;
+ if (protect_hfs) {
+ if (is_hfs_dotgit(path))
+ return 0;
+ if (S_ISLNK(mode)) {
+ if (is_hfs_dotgitmodules(path))
+ return 0;
+ }
+ }
+ if (protect_ntfs) {
+ if (is_ntfs_dotgit(path))
+ return 0;
+ if (S_ISLNK(mode)) {
+ if (is_ntfs_dotgitmodules(path))
+ return 0;
+ }
+ }
+
c = *path++;
- if ((c == '.' && !verify_dotfile(path)) ||
+ if ((c == '.' && !verify_dotfile(path, mode)) ||
is_dir_sep(c) || c == '\0')
return 0;
}
if (!ok_to_add)
return -1;
- if (!verify_path(ce->name))
+ if (!verify_path(ce->name, ce->ce_mode))
return error("Invalid path '%s'", ce->name);
if (!skip_df_check &&
/* Add it in.. */
istate->cache_nr++;
if (istate->cache_nr > pos + 1)
- memmove(istate->cache + pos + 1,
- istate->cache + pos,
- (istate->cache_nr - pos - 1) * sizeof(ce));
+ MOVE_ARRAY(istate->cache + pos + 1, istate->cache + pos,
+ istate->cache_nr - pos - 1);
set_index_entry(istate, pos, ce);
istate->cache_changed |= CE_ENTRY_ADDED;
return 0;
size = ce_size(ce);
updated = xmalloc(size);
- memcpy(updated, ce, size);
+ copy_cache_entry(updated, ce);
+ memcpy(updated->name, ce->name, ce->ce_namelen + 1);
fill_stat_cache_info(updated, &st);
/*
* If ignore_valid is not set, we should leave CE_VALID bit
const char *typechange_fmt;
const char *added_fmt;
const char *unmerged_fmt;
+ uint64_t start = getnanotime();
modified_fmt = (in_porcelain ? "M\t%s\n" : "%s: needs update\n");
deleted_fmt = (in_porcelain ? "D\t%s\n" : "%s: needs update\n");
added_fmt = (in_porcelain ? "A\t%s\n" : "%s needs update\n");
unmerged_fmt = (in_porcelain ? "U\t%s\n" : "%s: needs merge\n");
for (i = 0; i < istate->cache_nr; i++) {
- struct cache_entry *ce, *new;
+ struct cache_entry *ce, *new_entry;
int cache_errno = 0;
int changed = 0;
int filtered = 0;
if (filtered)
continue;
- new = refresh_cache_ent(istate, ce, options, &cache_errno, &changed);
- if (new == ce)
+ new_entry = refresh_cache_ent(istate, ce, options, &cache_errno, &changed);
+ if (new_entry == ce)
continue;
- if (!new) {
+ if (!new_entry) {
const char *fmt;
if (really && cache_errno == EINVAL) {
continue;
}
- replace_index_entry(istate, i, new);
+ replace_index_entry(istate, i, new_entry);
}
+ trace_performance_since(start, "refresh index");
return has_errors;
}
static int verify_hdr(struct cache_header *hdr, unsigned long size)
{
- git_SHA_CTX c;
- unsigned char sha1[20];
+ git_hash_ctx c;
+ unsigned char hash[GIT_MAX_RAWSZ];
int hdr_version;
if (hdr->hdr_signature != htonl(CACHE_SIGNATURE))
if (!verify_index_checksum)
return 0;
- git_SHA1_Init(&c);
- git_SHA1_Update(&c, hdr, size - 20);
- git_SHA1_Final(sha1, &c);
- if (hashcmp(sha1, (unsigned char *)hdr + size - 20))
+ the_hash_algo->init_fn(&c);
+ the_hash_algo->update_fn(&c, hdr, size - the_hash_algo->rawsz);
+ the_hash_algo->final_fn(hash, &c);
+ if (hashcmp(hash, (unsigned char *)hdr + size - the_hash_algo->rawsz))
return error("bad index file sha1 signature");
return 0;
}
die_errno("cannot stat the open index");
mmap_size = xsize_t(st.st_size);
- if (mmap_size < sizeof(struct cache_header) + 20)
+ if (mmap_size < sizeof(struct cache_header) + the_hash_algo->rawsz)
die("index file smaller than expected");
mmap = xmmap(NULL, mmap_size, PROT_READ, MAP_PRIVATE, fd, 0);
if (verify_hdr(hdr, mmap_size) < 0)
goto unmap;
- hashcpy(istate->sha1, (const unsigned char *)hdr + mmap_size - 20);
+ hashcpy(istate->oid.hash, (const unsigned char *)hdr + mmap_size - the_hash_algo->rawsz);
istate->version = ntohl(hdr->hdr_version);
istate->cache_nr = ntohl(hdr->hdr_entries);
istate->cache_alloc = alloc_nr(istate->cache_nr);
istate->timestamp.sec = st.st_mtime;
istate->timestamp.nsec = ST_MTIME_NSEC(st);
- while (src_offset <= mmap_size - 20 - 8) {
+ while (src_offset <= mmap_size - the_hash_algo->rawsz - 8) {
/* After an array of active_nr index entries,
* there can be arbitrary number of extended
* sections, each of which is prefixed with
int read_index_from(struct index_state *istate, const char *path,
const char *gitdir)
{
+ uint64_t start = getnanotime();
struct split_index *split_index;
int ret;
- char *base_sha1_hex;
+ char *base_oid_hex;
char *base_path;
/* istate->initialized covers both .git/index and .git/sharedindex.xxx */
return istate->cache_nr;
ret = do_read_index(istate, path, 0);
+ trace_performance_since(start, "read cache %s", path);
split_index = istate->split_index;
- if (!split_index || is_null_sha1(split_index->base_sha1)) {
+ if (!split_index || is_null_oid(&split_index->base_oid)) {
post_read_index_from(istate);
return ret;
}
else
split_index->base = xcalloc(1, sizeof(*split_index->base));
- base_sha1_hex = sha1_to_hex(split_index->base_sha1);
- base_path = xstrfmt("%s/sharedindex.%s", gitdir, base_sha1_hex);
+ base_oid_hex = oid_to_hex(&split_index->base_oid);
+ base_path = xstrfmt("%s/sharedindex.%s", gitdir, base_oid_hex);
ret = do_read_index(split_index->base, base_path, 1);
- if (hashcmp(split_index->base_sha1, split_index->base->sha1))
+ if (oidcmp(&split_index->base_oid, &split_index->base->oid))
die("broken index, expect %s in %s, got %s",
- base_sha1_hex, base_path,
- sha1_to_hex(split_index->base->sha1));
+ base_oid_hex, base_path,
+ oid_to_hex(&split_index->base->oid));
freshen_shared_index(base_path, 0);
merge_base_index(istate);
post_read_index_from(istate);
+ trace_performance_since(start, "read cache %s", base_path);
free(base_path);
return ret;
}
static unsigned char write_buffer[WRITE_BUFFER_SIZE];
static unsigned long write_buffer_len;
-static int ce_write_flush(git_SHA_CTX *context, int fd)
+static int ce_write_flush(git_hash_ctx *context, int fd)
{
unsigned int buffered = write_buffer_len;
if (buffered) {
- git_SHA1_Update(context, write_buffer, buffered);
+ the_hash_algo->update_fn(context, write_buffer, buffered);
if (write_in_full(fd, write_buffer, buffered) < 0)
return -1;
write_buffer_len = 0;
return 0;
}
-static int ce_write(git_SHA_CTX *context, int fd, void *data, unsigned int len)
+static int ce_write(git_hash_ctx *context, int fd, void *data, unsigned int len)
{
while (len) {
unsigned int buffered = write_buffer_len;
return 0;
}
-static int write_index_ext_header(git_SHA_CTX *context, int fd,
+static int write_index_ext_header(git_hash_ctx *context, int fd,
unsigned int ext, unsigned int sz)
{
ext = htonl(ext);
(ce_write(context, fd, &sz, 4) < 0)) ? -1 : 0;
}
-static int ce_flush(git_SHA_CTX *context, int fd, unsigned char *sha1)
+static int ce_flush(git_hash_ctx *context, int fd, unsigned char *hash)
{
unsigned int left = write_buffer_len;
if (left) {
write_buffer_len = 0;
- git_SHA1_Update(context, write_buffer, left);
+ the_hash_algo->update_fn(context, write_buffer, left);
}
- /* Flush first if not enough space for SHA1 signature */
- if (left + 20 > WRITE_BUFFER_SIZE) {
+ /* Flush first if not enough space for hash signature */
+ if (left + the_hash_algo->rawsz > WRITE_BUFFER_SIZE) {
if (write_in_full(fd, write_buffer, left) < 0)
return -1;
left = 0;
}
- /* Append the SHA1 signature at the end */
- git_SHA1_Final(write_buffer + left, context);
- hashcpy(sha1, write_buffer + left);
- left += 20;
+ /* Append the hash signature at the end */
+ the_hash_algo->final_fn(write_buffer + left, context);
+ hashcpy(hash, write_buffer + left);
+ left += the_hash_algo->rawsz;
return (write_in_full(fd, write_buffer, left) < 0) ? -1 : 0;
}
}
}
-static int ce_write_entry(git_SHA_CTX *c, int fd, struct cache_entry *ce,
+static int ce_write_entry(git_hash_ctx *c, int fd, struct cache_entry *ce,
struct strbuf *previous_name, struct ondisk_cache_entry *ondisk)
{
int size;
- int saved_namelen = saved_namelen; /* compiler workaround */
int result;
+ unsigned int saved_namelen;
+ int stripped_name = 0;
static unsigned char padding[8] = { 0x00 };
if (ce->ce_flags & CE_STRIP_NAME) {
saved_namelen = ce_namelen(ce);
ce->ce_namelen = 0;
+ stripped_name = 1;
}
if (ce->ce_flags & CE_EXTENDED)
strbuf_splice(previous_name, common, to_remove,
ce->name + common, ce_namelen(ce) - common);
}
- if (ce->ce_flags & CE_STRIP_NAME) {
+ if (stripped_name) {
ce->ce_namelen = saved_namelen;
ce->ce_flags &= ~CE_STRIP_NAME;
}
int fd;
ssize_t n;
struct stat st;
- unsigned char sha1[20];
+ unsigned char hash[GIT_MAX_RAWSZ];
if (!istate->initialized)
return 0;
if (fstat(fd, &st))
goto out;
- if (st.st_size < sizeof(struct cache_header) + 20)
+ if (st.st_size < sizeof(struct cache_header) + the_hash_algo->rawsz)
goto out;
- n = pread_in_full(fd, sha1, 20, st.st_size - 20);
- if (n != 20)
+ n = pread_in_full(fd, hash, the_hash_algo->rawsz, st.st_size - the_hash_algo->rawsz);
+ if (n != the_hash_algo->rawsz)
goto out;
- if (hashcmp(istate->sha1, sha1))
+ if (hashcmp(istate->oid.hash, hash))
goto out;
close(fd);
static int do_write_index(struct index_state *istate, struct tempfile *tempfile,
int strip_extensions)
{
+ uint64_t start = getnanotime();
int newfd = tempfile->fd;
- git_SHA_CTX c;
+ git_hash_ctx c;
struct cache_header hdr;
int i, err = 0, removed, extended, hdr_version;
struct cache_entry **cache = istate->cache;
if (!istate->version) {
istate->version = get_index_format_default();
- if (getenv("GIT_TEST_SPLIT_INDEX"))
+ if (git_env_bool("GIT_TEST_SPLIT_INDEX", 0))
init_split_index(istate);
}
hdr.hdr_version = htonl(hdr_version);
hdr.hdr_entries = htonl(entries - removed);
- git_SHA1_Init(&c);
+ the_hash_algo->init_fn(&c);
if (ce_write(&c, newfd, &hdr, sizeof(hdr)) < 0)
return -1;
return -1;
}
- if (ce_flush(&c, newfd, istate->sha1))
+ if (ce_flush(&c, newfd, istate->oid.hash))
return -1;
if (close_tempfile_gently(tempfile)) {
error(_("could not close '%s'"), tempfile->filename.buf);
return -1;
istate->timestamp.sec = (unsigned int)st.st_mtime;
istate->timestamp.nsec = ST_MTIME_NSEC(st);
+ trace_performance_since(start, "write index, changed mask = %x", istate->cache_changed);
return 0;
}
return ret;
}
ret = rename_tempfile(temp,
- git_path("sharedindex.%s", sha1_to_hex(si->base->sha1)));
+ git_path("sharedindex.%s", oid_to_hex(&si->base->oid)));
if (!ret) {
- hashcpy(si->base_sha1, si->base->sha1);
- clean_shared_index_files(sha1_to_hex(si->base->sha1));
+ oidcpy(&si->base_oid, &si->base->oid);
+ clean_shared_index_files(oid_to_hex(&si->base->oid));
}
return ret;
int new_shared_index, ret;
struct split_index *si = istate->split_index;
+ if ((flags & SKIP_IF_UNCHANGED) && !istate->cache_changed) {
+ if (flags & COMMIT_LOCK)
+ rollback_lock_file(lock);
+ return 0;
+ }
+
if (istate->fsmonitor_last_update)
fill_fsmonitor_bitmap(istate);
if (!si || alternate_index_output ||
(istate->cache_changed & ~EXTMASK)) {
if (si)
- hashclr(si->base_sha1);
+ oidclr(&si->base_oid);
ret = do_write_locked_index(istate, lock, flags);
goto out;
}
- if (getenv("GIT_TEST_SPLIT_INDEX")) {
- int v = si->base_sha1[0];
+ if (git_env_bool("GIT_TEST_SPLIT_INDEX", 0)) {
+ int v = si->base_oid.hash[0];
if ((v & 15) < 6)
istate->cache_changed |= SPLIT_INDEX_ORDERED;
}
temp = mks_tempfile(git_path("sharedindex_XXXXXX"));
if (!temp) {
- hashclr(si->base_sha1);
+ oidclr(&si->base_oid);
ret = do_write_locked_index(istate, lock, flags);
goto out;
}
/* Freshen the shared index only if the split-index was written */
if (!ret && !new_shared_index) {
const char *shared_index = git_path("sharedindex.%s",
- sha1_to_hex(si->base_sha1));
+ oid_to_hex(&si->base_oid));
freshen_shared_index(shared_index, 1);
}
}
if (pos < 0)
return NULL;
- data = read_sha1_file(istate->cache[pos]->oid.hash, &type, &sz);
+ data = read_object_file(&istate->cache[pos]->oid, &type, &sz);
if (!data || type != OBJ_BLOB) {
free(data);
return NULL;