#include "cache.h"
#include "blob.h"
+#include "object-store.h"
#include "dir.h"
#include "streaming.h"
+#include "submodule.h"
+#include "progress.h"
+#include "fsmonitor.h"
static void create_directories(const char *path, int path_len,
const struct checkout *state)
{
- char *buf = xmalloc(path_len + 1);
+ char *buf = xmallocz(path_len);
int len = 0;
while (len < path_len) {
free(buf);
}
-static void remove_subtree(const char *path)
+static void remove_subtree(struct strbuf *path)
{
- DIR *dir = opendir(path);
+ DIR *dir = opendir(path->buf);
struct dirent *de;
- char pathbuf[PATH_MAX];
- char *name;
+ int origlen = path->len;
if (!dir)
- die_errno("cannot opendir '%s'", path);
- strcpy(pathbuf, path);
- name = pathbuf + strlen(path);
- *name++ = '/';
+ die_errno("cannot opendir '%s'", path->buf);
while ((de = readdir(dir)) != NULL) {
struct stat st;
+
if (is_dot_or_dotdot(de->d_name))
continue;
- strcpy(name, de->d_name);
- if (lstat(pathbuf, &st))
- die_errno("cannot lstat '%s'", pathbuf);
+
+ strbuf_addch(path, '/');
+ strbuf_addstr(path, de->d_name);
+ if (lstat(path->buf, &st))
+ die_errno("cannot lstat '%s'", path->buf);
if (S_ISDIR(st.st_mode))
- remove_subtree(pathbuf);
- else if (unlink(pathbuf))
- die_errno("cannot unlink '%s'", pathbuf);
+ remove_subtree(path);
+ else if (unlink(path->buf))
+ die_errno("cannot unlink '%s'", path->buf);
+ strbuf_setlen(path, origlen);
}
closedir(dir);
- if (rmdir(path))
- die_errno("cannot rmdir '%s'", path);
+ if (rmdir(path->buf))
+ die_errno("cannot rmdir '%s'", path->buf);
}
static int create_file(const char *path, unsigned int mode)
return open(path, O_WRONLY | O_CREAT | O_EXCL, mode);
}
-static void *read_blob_entry(struct cache_entry *ce, unsigned long *size)
+static void *read_blob_entry(const struct cache_entry *ce, unsigned long *size)
{
enum object_type type;
- void *new = read_sha1_file(ce->sha1, &type, size);
+ void *blob_data = read_object_file(&ce->oid, &type, size);
- if (new) {
+ if (blob_data) {
if (type == OBJ_BLOB)
- return new;
- free(new);
+ return blob_data;
+ free(blob_data);
}
return NULL;
}
-static int open_output_fd(char *path, struct cache_entry *ce, int to_tempfile)
+static int open_output_fd(char *path, const struct cache_entry *ce, int to_tempfile)
{
int symlink = (ce->ce_mode & S_IFMT) != S_IFREG;
if (to_tempfile) {
- strcpy(path, symlink
- ? ".merge_link_XXXXXX" : ".merge_file_XXXXXX");
+ xsnprintf(path, TEMPORARY_FILENAME_LENGTH, "%s",
+ symlink ? ".merge_link_XXXXXX" : ".merge_file_XXXXXX");
return mkstemp(path);
} else {
return create_file(path, !symlink ? ce->ce_mode : 0666);
return 0;
}
-static int streaming_write_entry(struct cache_entry *ce, char *path,
+static int streaming_write_entry(const struct cache_entry *ce, char *path,
struct stream_filter *filter,
const struct checkout *state, int to_tempfile,
int *fstat_done, struct stat *statbuf)
{
- int result = -1;
+ int result = 0;
int fd;
fd = open_output_fd(path, ce, to_tempfile);
- if (0 <= fd) {
- result = stream_blob_to_fd(fd, ce->sha1, filter, 1);
- *fstat_done = fstat_output(fd, state, statbuf);
- result = close(fd);
- }
- if (result && 0 <= fd)
+ if (fd < 0)
+ return -1;
+
+ result |= stream_blob_to_fd(fd, &ce->oid, filter, 1);
+ *fstat_done = fstat_output(fd, state, statbuf);
+ result |= close(fd);
+
+ if (result)
unlink(path);
return result;
}
-static int write_entry(struct cache_entry *ce, char *path, const struct checkout *state, int to_tempfile)
+void enable_delayed_checkout(struct checkout *state)
+{
+ if (!state->delayed_checkout) {
+ state->delayed_checkout = xmalloc(sizeof(*state->delayed_checkout));
+ state->delayed_checkout->state = CE_CAN_DELAY;
+ string_list_init(&state->delayed_checkout->filters, 0);
+ string_list_init(&state->delayed_checkout->paths, 0);
+ }
+}
+
+static int remove_available_paths(struct string_list_item *item, void *cb_data)
+{
+ struct string_list *available_paths = cb_data;
+ struct string_list_item *available;
+
+ available = string_list_lookup(available_paths, item->string);
+ if (available)
+ available->util = (void *)item->string;
+ return !available;
+}
+
+int finish_delayed_checkout(struct checkout *state, int *nr_checkouts)
+{
+ int errs = 0;
+ unsigned delayed_object_count;
+ off_t filtered_bytes = 0;
+ struct string_list_item *filter, *path;
+ struct progress *progress;
+ struct delayed_checkout *dco = state->delayed_checkout;
+
+ if (!state->delayed_checkout)
+ return errs;
+
+ dco->state = CE_RETRY;
+ delayed_object_count = dco->paths.nr;
+ progress = start_delayed_progress(_("Filtering content"), delayed_object_count);
+ while (dco->filters.nr > 0) {
+ for_each_string_list_item(filter, &dco->filters) {
+ struct string_list available_paths = STRING_LIST_INIT_NODUP;
+ display_progress(progress, delayed_object_count - dco->paths.nr);
+
+ if (!async_query_available_blobs(filter->string, &available_paths)) {
+ /* Filter reported an error */
+ errs = 1;
+ filter->string = "";
+ continue;
+ }
+ if (available_paths.nr <= 0) {
+ /*
+ * Filter responded with no entries. That means
+ * the filter is done and we can remove the
+ * filter from the list (see
+ * "string_list_remove_empty_items" call below).
+ */
+ filter->string = "";
+ continue;
+ }
+
+ /*
+ * In dco->paths we store a list of all delayed paths.
+ * The filter just send us a list of available paths.
+ * Remove them from the list.
+ */
+ filter_string_list(&dco->paths, 0,
+ &remove_available_paths, &available_paths);
+
+ for_each_string_list_item(path, &available_paths) {
+ struct cache_entry* ce;
+
+ if (!path->util) {
+ error("external filter '%s' signaled that '%s' "
+ "is now available although it has not been "
+ "delayed earlier",
+ filter->string, path->string);
+ errs |= 1;
+
+ /*
+ * Do not ask the filter for available blobs,
+ * again, as the filter is likely buggy.
+ */
+ filter->string = "";
+ continue;
+ }
+ ce = index_file_exists(state->istate, path->string,
+ strlen(path->string), 0);
+ if (ce) {
+ errs |= checkout_entry(ce, state, NULL, nr_checkouts);
+ filtered_bytes += ce->ce_stat_data.sd_size;
+ display_throughput(progress, filtered_bytes);
+ } else
+ errs = 1;
+ }
+ }
+ string_list_remove_empty_items(&dco->filters, 0);
+ }
+ stop_progress(&progress);
+ string_list_clear(&dco->filters, 0);
+
+ /* At this point we should not have any delayed paths anymore. */
+ errs |= dco->paths.nr;
+ for_each_string_list_item(path, &dco->paths) {
+ error("'%s' was not filtered properly", path->string);
+ }
+ string_list_clear(&dco->paths, 0);
+
+ free(dco);
+ state->delayed_checkout = NULL;
+
+ return errs;
+}
+
+static int write_entry(struct cache_entry *ce,
+ char *path, const struct checkout *state, int to_tempfile)
{
unsigned int ce_mode_s_ifmt = ce->ce_mode & S_IFMT;
+ struct delayed_checkout *dco = state->delayed_checkout;
int fd, ret, fstat_done = 0;
- char *new;
+ char *new_blob;
struct strbuf buf = STRBUF_INIT;
unsigned long size;
- size_t wrote, newsize = 0;
+ ssize_t wrote;
+ size_t newsize = 0;
struct stat st;
+ const struct submodule *sub;
if (ce_mode_s_ifmt == S_IFREG) {
- struct stream_filter *filter = get_stream_filter(path, ce->sha1);
+ struct stream_filter *filter = get_stream_filter(state->istate, ce->name,
+ &ce->oid);
if (filter &&
!streaming_write_entry(ce, path, filter,
state, to_tempfile,
}
switch (ce_mode_s_ifmt) {
- case S_IFREG:
case S_IFLNK:
- new = read_blob_entry(ce, &size);
- if (!new)
+ new_blob = read_blob_entry(ce, &size);
+ if (!new_blob)
return error("unable to read sha1 file of %s (%s)",
- path, sha1_to_hex(ce->sha1));
-
- if (ce_mode_s_ifmt == S_IFLNK && has_symlinks && !to_tempfile) {
- ret = symlink(new, path);
- free(new);
- if (ret)
- return error("unable to create symlink %s (%s)",
- path, strerror(errno));
- break;
+ path, oid_to_hex(&ce->oid));
+
+ /*
+ * We can't make a real symlink; write out a regular file entry
+ * with the symlink destination as its contents.
+ */
+ if (!has_symlinks || to_tempfile)
+ goto write_file_entry;
+
+ ret = symlink(new_blob, path);
+ free(new_blob);
+ if (ret)
+ return error_errno("unable to create symlink %s", path);
+ break;
+
+ case S_IFREG:
+ /*
+ * We do not send the blob in case of a retry, so do not
+ * bother reading it at all.
+ */
+ if (dco && dco->state == CE_RETRY) {
+ new_blob = NULL;
+ size = 0;
+ } else {
+ new_blob = read_blob_entry(ce, &size);
+ if (!new_blob)
+ return error("unable to read sha1 file of %s (%s)",
+ path, oid_to_hex(&ce->oid));
}
/*
* Convert from git internal format to working tree format
*/
- if (ce_mode_s_ifmt == S_IFREG &&
- convert_to_working_tree(ce->name, new, size, &buf)) {
- free(new);
- new = strbuf_detach(&buf, &newsize);
+ if (dco && dco->state != CE_NO_DELAY) {
+ ret = async_convert_to_working_tree(state->istate, ce->name, new_blob,
+ size, &buf, dco);
+ if (ret && string_list_has_string(&dco->paths, ce->name)) {
+ free(new_blob);
+ goto delayed;
+ }
+ } else
+ ret = convert_to_working_tree(state->istate, ce->name, new_blob, size, &buf);
+
+ if (ret) {
+ free(new_blob);
+ new_blob = strbuf_detach(&buf, &newsize);
size = newsize;
}
+ /*
+ * No "else" here as errors from convert are OK at this
+ * point. If the error would have been fatal (e.g.
+ * filter is required), then we would have died already.
+ */
+ write_file_entry:
fd = open_output_fd(path, ce, to_tempfile);
if (fd < 0) {
- free(new);
- return error("unable to create file %s (%s)",
- path, strerror(errno));
+ free(new_blob);
+ return error_errno("unable to create file %s", path);
}
- wrote = write_in_full(fd, new, size);
+ wrote = write_in_full(fd, new_blob, size);
if (!to_tempfile)
fstat_done = fstat_output(fd, state, &st);
close(fd);
- free(new);
- if (wrote != size)
+ free(new_blob);
+ if (wrote < 0)
return error("unable to write file %s", path);
break;
+
case S_IFGITLINK:
if (to_tempfile)
- return error("cannot create temporary subproject %s", path);
+ return error("cannot create temporary submodule %s", path);
if (mkdir(path, 0777) < 0)
- return error("cannot create subproject directory %s", path);
+ return error("cannot create submodule directory %s", path);
+ sub = submodule_from_ce(ce);
+ if (sub)
+ return submodule_move_head(ce->name,
+ NULL, oid_to_hex(&ce->oid),
+ state->force ? SUBMODULE_MOVE_HEAD_FORCE : 0);
break;
+
default:
return error("unknown file mode for %s in index", path);
}
finish:
if (state->refresh_cache) {
+ assert(state->istate);
if (!fstat_done)
- lstat(ce->name, &st);
- fill_stat_cache_info(ce, &st);
+ if (lstat(ce->name, &st) < 0)
+ return error_errno("unable to stat just-written file %s",
+ ce->name);
+ fill_stat_cache_info(state->istate, ce, &st);
+ ce->ce_flags |= CE_UPDATE_IN_BASE;
+ mark_fsmonitor_invalid(state->istate, ce);
+ state->istate->cache_changed |= CE_ENTRY_CHANGED;
}
+delayed:
return 0;
}
return lstat(path, st);
}
-int checkout_entry(struct cache_entry *ce, const struct checkout *state, char *topath)
+static void mark_colliding_entries(const struct checkout *state,
+ struct cache_entry *ce, struct stat *st)
+{
+ int i, trust_ino = check_stat;
+
+#if defined(GIT_WINDOWS_NATIVE) || defined(__CYGWIN__)
+ trust_ino = 0;
+#endif
+
+ ce->ce_flags |= CE_MATCHED;
+
+ for (i = 0; i < state->istate->cache_nr; i++) {
+ struct cache_entry *dup = state->istate->cache[i];
+
+ if (dup == ce)
+ break;
+
+ if (dup->ce_flags & (CE_MATCHED | CE_VALID | CE_SKIP_WORKTREE))
+ continue;
+
+ if ((trust_ino && !match_stat_data(&dup->ce_stat_data, st)) ||
+ (!trust_ino && !fspathcmp(ce->name, dup->name))) {
+ dup->ce_flags |= CE_MATCHED;
+ break;
+ }
+ }
+}
+
+/*
+ * Write the contents from ce out to the working tree.
+ *
+ * When topath[] is not NULL, instead of writing to the working tree
+ * file named by ce, a temporary file is created by this function and
+ * its name is returned in topath[], which must be able to hold at
+ * least TEMPORARY_FILENAME_LENGTH bytes long.
+ */
+int checkout_entry(struct cache_entry *ce, const struct checkout *state,
+ char *topath, int *nr_checkouts)
{
- static char path[PATH_MAX + 1];
+ static struct strbuf path = STRBUF_INIT;
struct stat st;
- int len = state->base_dir_len;
+
+ if (ce->ce_flags & CE_WT_REMOVE) {
+ if (topath)
+ /*
+ * No content and thus no path to create, so we have
+ * no pathname to return.
+ */
+ BUG("Can't remove entry to a path");
+ unlink_entry(ce);
+ return 0;
+ }
if (topath)
return write_entry(ce, topath, state, 1);
- memcpy(path, state->base_dir, len);
- strcpy(path + len, ce->name);
- len += ce_namelen(ce);
+ strbuf_reset(&path);
+ strbuf_add(&path, state->base_dir, state->base_dir_len);
+ strbuf_add(&path, ce->name, ce_namelen(ce));
+
+ if (!check_path(path.buf, path.len, &st, state->base_dir_len)) {
+ const struct submodule *sub;
+ unsigned changed = ie_match_stat(state->istate, ce, &st,
+ CE_MATCH_IGNORE_VALID | CE_MATCH_IGNORE_SKIP_WORKTREE);
+ /*
+ * Needs to be checked before !changed returns early,
+ * as the possibly empty directory was not changed
+ */
+ sub = submodule_from_ce(ce);
+ if (sub) {
+ int err;
+ if (!is_submodule_populated_gently(ce->name, &err)) {
+ struct stat sb;
+ if (lstat(ce->name, &sb))
+ die(_("could not stat file '%s'"), ce->name);
+ if (!(st.st_mode & S_IFDIR))
+ unlink_or_warn(ce->name);
+
+ return submodule_move_head(ce->name,
+ NULL, oid_to_hex(&ce->oid), 0);
+ } else
+ return submodule_move_head(ce->name,
+ "HEAD", oid_to_hex(&ce->oid),
+ state->force ? SUBMODULE_MOVE_HEAD_FORCE : 0);
+ }
- if (!check_path(path, len, &st, state->base_dir_len)) {
- unsigned changed = ce_match_stat(ce, &st, CE_MATCH_IGNORE_VALID|CE_MATCH_IGNORE_SKIP_WORKTREE);
if (!changed)
return 0;
if (!state->force) {
if (!state->quiet)
- fprintf(stderr, "%s already exists, no checkout\n", path);
+ fprintf(stderr,
+ "%s already exists, no checkout\n",
+ path.buf);
return -1;
}
+ if (state->clone)
+ mark_colliding_entries(state, ce, &st);
+
/*
* We unlink the old file, to get the new one with the
* right permissions (including umask, which is nasty
if (S_ISGITLINK(ce->ce_mode))
return 0;
if (!state->force)
- return error("%s is a directory", path);
- remove_subtree(path);
- } else if (unlink(path))
- return error("unable to unlink old '%s' (%s)", path, strerror(errno));
+ return error("%s is a directory", path.buf);
+ remove_subtree(&path);
+ } else if (unlink(path.buf))
+ return error_errno("unable to unlink old '%s'", path.buf);
} else if (state->not_new)
return 0;
- create_directories(path, len, state);
- return write_entry(ce, path, state, 0);
+
+ create_directories(path.buf, path.len, state);
+ if (nr_checkouts)
+ (*nr_checkouts)++;
+ return write_entry(ce, path.buf, state, 0);
+}
+
+void unlink_entry(const struct cache_entry *ce)
+{
+ const struct submodule *sub = submodule_from_ce(ce);
+ if (sub) {
+ /* state.force is set at the caller. */
+ submodule_move_head(ce->name, "HEAD", NULL,
+ SUBMODULE_MOVE_HEAD_FORCE);
+ }
+ if (!check_leading_path(ce->name, ce_namelen(ce)))
+ return;
+ if (remove_or_warn(ce->ce_mode, ce->name))
+ return;
+ schedule_dir_for_removal(ce->name, ce_namelen(ce));
}
projects / platform / upstream / git.git / blobdiff