Merge branch 'rs/tempfile-wo-the-repository' into jch

The tempfile and lockfile APIs have been refactored to stop depending
on the 'the_repository' global variable, and their callers have been
updated to use the repository-aware variants.

* rs/tempfile-wo-the-repository:
  use repo_hold_lock_file_for_update{,_mode,_timeout}() with custom repos
  tempfile: stop using the_repository
  lockfile: add repo_hold_lock_file_for_update{,_timeout}{,_mode}()
  refs/packed: use repo_create_tempfile()
  tempfile: add repo_create_tempfile{,_mode}()

apply.c

@@ -4287,7 +4287,8 @@ static int build_fake_ancestor(struct apply_state *state, struct patch *list)
 		}
 	}
 
-	hold_lock_file_for_update(&lock, state->fake_ancestor, LOCK_DIE_ON_ERROR);
+	repo_hold_lock_file_for_update(state->repo, &lock, state->fake_ancestor,
+				       LOCK_DIE_ON_ERROR);
 	res = write_locked_index(&result, &lock, COMMIT_LOCK);
 	discard_index(&result);
 
@@ -4945,9 +4946,10 @@ static int apply_patch(struct apply_state *state,
 	state->update_index = (state->check_index || state->ita_only) && state->apply;
 	if (state->update_index && !is_lock_file_locked(&state->lock_file)) {
 		if (state->index_file)
-			hold_lock_file_for_update(&state->lock_file,
-						  state->index_file,
-						  LOCK_DIE_ON_ERROR);
+			repo_hold_lock_file_for_update(state->repo,
+						       &state->lock_file,
+						       state->index_file,
+						       LOCK_DIE_ON_ERROR);
 		else
 			repo_hold_locked_index(state->repo, &state->lock_file,
 					       LOCK_DIE_ON_ERROR);

builtin/difftool.c

@@ -636,7 +636,7 @@ static int run_dir_diff(struct repository *repo,
 			struct lock_file lock = LOCK_INIT;
 			strbuf_reset(&buf);
 			strbuf_addf(&buf, "%s/wtindex", tmpdir.buf);
-			if (hold_lock_file_for_update(&lock, buf.buf, 0) < 0 ||
+			if (repo_hold_lock_file_for_update(repo, &lock, buf.buf, 0) < 0 ||
 			    write_locked_index(&wtindex, &lock, COMMIT_LOCK)) {
 				ret = error("could not write %s", buf.buf);
 				goto finish;

builtin/gc.c

@@ -1790,7 +1790,7 @@ static int maintenance_run_tasks(struct maintenance_run_opts *opts,
 	struct repository *r = the_repository;
 	char *lock_path = xstrfmt("%s/maintenance", r->objects->sources->path);
 
-	if (hold_lock_file_for_update(&lk, lock_path, LOCK_NO_DEREF) < 0) {
+	if (repo_hold_lock_file_for_update(r, &lk, lock_path, LOCK_NO_DEREF) < 0) {
 		/*
 		 * Another maintenance command is running.
 		 *

builtin/history.c

@@ -795,7 +795,7 @@ static int write_ondisk_index(struct repository *repo,
 
 	prime_cache_tree(repo, &index, tree);
 
-	if (hold_lock_file_for_update(&lock, path, 0) < 0) {
+	if (repo_hold_lock_file_for_update(repo, &lock, path, 0) < 0) {
 		ret = error_errno(_("unable to acquire index lock"));
 		goto out;
 	}

builtin/sparse-checkout.c

@@ -341,7 +341,8 @@ static int write_patterns_and_update(struct repository *repo,
 	if (safe_create_leading_directories(repo, sparse_filename))
 		die(_("failed to create directory for sparse-checkout file"));
 
-	hold_lock_file_for_update(&lk, sparse_filename, LOCK_DIE_ON_ERROR);
+	repo_hold_lock_file_for_update(repo, &lk, sparse_filename,
+				       LOCK_DIE_ON_ERROR);
 
 	result = update_working_directory(repo, pl);
 	if (result) {

bundle.c

@@ -519,8 +519,8 @@ int create_bundle(struct repository *r, const char *path,
 	if (bundle_to_stdout)
 		bundle_fd = 1;
 	else
-		bundle_fd = hold_lock_file_for_update(&lock, path,
-						      LOCK_DIE_ON_ERROR);
+		bundle_fd = repo_hold_lock_file_for_update(r, &lock, path,
+							   LOCK_DIE_ON_ERROR);
 
 	if (version == -1)
 		version = min_version;

commit-graph.c

@@ -2127,8 +2127,8 @@ static int write_commit_graph_file(struct write_commit_graph_context *ctx)
 	if (ctx->split) {
 		char *lock_name = get_commit_graph_chain_filename(ctx->odb_source);
 
-		hold_lock_file_for_update_mode(&lk, lock_name,
-					       LOCK_DIE_ON_ERROR, 0444);
+		repo_hold_lock_file_for_update_mode(ctx->r, &lk, lock_name,
+						    LOCK_DIE_ON_ERROR, 0444);
 		free(lock_name);
 
 		graph_layer = mks_tempfile_m(ctx->graph_name, 0444);
@@ -2146,8 +2146,9 @@ static int write_commit_graph_file(struct write_commit_graph_context *ctx)
 		f = hashfd(ctx->r->hash_algo,
 			   get_tempfile_fd(graph_layer), get_tempfile_path(graph_layer));
 	} else {
-		hold_lock_file_for_update_mode(&lk, ctx->graph_name,
-					       LOCK_DIE_ON_ERROR, 0444);
+		repo_hold_lock_file_for_update_mode(ctx->r, &lk,
+						    ctx->graph_name,
+						    LOCK_DIE_ON_ERROR, 0444);
 		f = hashfd(ctx->r->hash_algo,
 			   get_lock_file_fd(&lk), get_lock_file_path(&lk));
 	}

config.c

@@ -3037,7 +3037,7 @@ int repo_config_set_multivar_in_file_gently(struct repository *r,
 	 * The lock serves a purpose in addition to locking: the new
 	 * contents of .git/config will be written into it.
 	 */
-	fd = hold_lock_file_for_update(&lock, config_filename, 0);
+	fd = repo_hold_lock_file_for_update(r, &lock, config_filename, 0);
 	if (fd < 0) {
 		error_errno(_("could not lock config file %s"), config_filename);
 		ret = CONFIG_NO_LOCK;
@@ -3382,7 +3382,7 @@ static int repo_config_copy_or_rename_section_in_file(
 	if (!config_filename)
 		config_filename = filename_buf = repo_git_path(r, "config");
 
-	out_fd = hold_lock_file_for_update(&lock, config_filename, 0);
+	out_fd = repo_hold_lock_file_for_update(r, &lock, config_filename, 0);
 	if (out_fd < 0) {
 		ret = error(_("could not lock config file %s"), config_filename);
 		goto out;

lockfile.c

@@ -2,11 +2,14 @@
  * Copyright (c) 2005, Junio C Hamano
  */
 
+#define USE_THE_REPOSITORY_VARIABLE
+
 #include "git-compat-util.h"
 #include "abspath.h"
 #include "gettext.h"
 #include "lockfile.h"
 #include "parse.h"
+#include "repository.h"
 #include "strbuf.h"
 #include "wrapper.h"
 
@@ -162,8 +165,8 @@ out:
 }
 
 /* Make sure errno contains a meaningful value on error */
-static int lock_file(struct lock_file *lk, const char *path, int flags,
-		     int mode)
+static int lock_file(struct repository *r, struct lock_file *lk,
+		     const char *path, int flags, int mode)
 {
 	struct strbuf base_path = STRBUF_INIT;
 	struct strbuf lock_path = STRBUF_INIT;
@@ -176,7 +179,7 @@ static int lock_file(struct lock_file *lk, const char *path, int flags,
 	get_lock_path(&lock_path, base_path.buf);
 	get_pid_path(&pid_path, base_path.buf);
 
-	lk->tempfile = create_tempfile_mode(lock_path.buf, mode);
+	lk->tempfile = repo_create_tempfile_mode(r, lock_path.buf, mode);
 	if (lk->tempfile)
 		lk->pid_tempfile = create_lock_pid_file(pid_path.buf, mode);
 
@@ -200,8 +203,9 @@ static int lock_file(struct lock_file *lk, const char *path, int flags,
  * timeout_ms milliseconds. If timeout_ms is 0, try locking the file
  * exactly once. If timeout_ms is -1, try indefinitely.
  */
-static int lock_file_timeout(struct lock_file *lk, const char *path,
-			     int flags, long timeout_ms, int mode)
+static int lock_file_timeout(struct repository *r, struct lock_file *lk,
+			     const char *path, int flags, long timeout_ms,
+			     int mode)
 {
 	int n = 1;
 	int multiplier = 1;
@@ -209,7 +213,7 @@ static int lock_file_timeout(struct lock_file *lk, const char *path,
 	static int random_initialized = 0;
 
 	if (timeout_ms == 0)
-		return lock_file(lk, path, flags, mode);
+		return lock_file(r, lk, path, flags, mode);
 
 	if (!random_initialized) {
 		srand((unsigned int)getpid());
@@ -223,7 +227,7 @@ static int lock_file_timeout(struct lock_file *lk, const char *path,
 		long backoff_ms, wait_ms;
 		int fd;
 
-		fd = lock_file(lk, path, flags, mode);
+		fd = lock_file(r, lk, path, flags, mode);
 
 		if (fd >= 0)
 			return fd; /* success */
@@ -308,7 +312,17 @@ int hold_lock_file_for_update_timeout_mode(struct lock_file *lk,
 					   const char *path, int flags,
 					   long timeout_ms, int mode)
 {
-	int fd = lock_file_timeout(lk, path, flags, timeout_ms, mode);
+	return repo_hold_lock_file_for_update_timeout_mode(the_repository,
+							   lk, path, flags,
+							   timeout_ms, mode);
+}
+
+int repo_hold_lock_file_for_update_timeout_mode(struct repository *r,
+						struct lock_file *lk,
+						const char *path, int flags,
+						long timeout_ms, int mode)
+{
+	int fd = lock_file_timeout(r, lk, path, flags, timeout_ms, mode);
 	if (fd < 0) {
 		if (flags & LOCK_DIE_ON_ERROR)
 			unable_to_lock_die(path, errno);

lockfile.h

@@ -189,6 +189,11 @@ int hold_lock_file_for_update_timeout_mode(
 	struct lock_file *lk, const char *path,
 	int flags, long timeout_ms, int mode);
 
+int repo_hold_lock_file_for_update_timeout_mode(struct repository *r,
+						struct lock_file *lk,
+						const char *path, int flags,
+						long timeout_ms, int mode);
+
 static inline int hold_lock_file_for_update_timeout(
 	struct lock_file *lk, const char *path,
 	int flags, long timeout_ms)
@@ -197,6 +202,16 @@ static inline int hold_lock_file_for_update_timeout(
 						      timeout_ms, 0666);
 }
 
+static inline int repo_hold_lock_file_for_update_timeout(struct repository *r,
+							 struct lock_file *lk,
+							 const char *path,
+							 int flags,
+							 long timeout_ms)
+{
+	return repo_hold_lock_file_for_update_timeout_mode(r, lk, path, flags,
+							   timeout_ms, 0666);
+}
+
 /*
  * Attempt to create a lockfile for the file at `path` and return a
  * file descriptor for writing to it, or -1 on error. The flags
@@ -208,6 +223,13 @@ static inline int hold_lock_file_for_update(
 	return hold_lock_file_for_update_timeout(lk, path, flags, 0);
 }
 
+static inline int repo_hold_lock_file_for_update(struct repository *r,
+						 struct lock_file *lk,
+						 const char *path, int flags)
+{
+	return repo_hold_lock_file_for_update_timeout(r, lk, path, flags, 0);
+}
+
 static inline int hold_lock_file_for_update_mode(
 	struct lock_file *lk, const char *path,
 	int flags, int mode)
@@ -215,6 +237,15 @@ static inline int hold_lock_file_for_update_mode(
 	return hold_lock_file_for_update_timeout_mode(lk, path, flags, 0, mode);
 }
 
+static inline int repo_hold_lock_file_for_update_mode(struct repository *r,
+						      struct lock_file *lk,
+						      const char *path,
+						      int flags, int mode)
+{
+	return repo_hold_lock_file_for_update_timeout_mode(r, lk, path, flags,
+							   0, mode);
+}
+
 /*
  * Return a nonzero value iff `lk` is currently locked.
  */

loose.c

@@ -137,7 +137,8 @@ int repo_write_loose_object_map(struct repository *repo)
 		return 0;
 
 	repo_common_path_replace(repo, &path, "objects/loose-object-idx");
-	fd = hold_lock_file_for_update_timeout(&lock, path.buf, LOCK_DIE_ON_ERROR, -1);
+	fd = repo_hold_lock_file_for_update_timeout(repo, &lock, path.buf,
+						    LOCK_DIE_ON_ERROR, -1);
 	iter = kh_begin(map);
 	if (write_in_full(fd, loose_object_header, strlen(loose_object_header)) < 0)
 		goto errout;
@@ -179,7 +180,8 @@ static int write_one_object(struct odb_source_loose *loose,
 	struct strbuf buf = STRBUF_INIT, path = STRBUF_INIT;
 
 	strbuf_addf(&path, "%s/loose-object-idx", loose->base.path);
-	hold_lock_file_for_update_timeout(&lock, path.buf, LOCK_DIE_ON_ERROR, -1);
+	repo_hold_lock_file_for_update_timeout(loose->base.odb->repo, &lock,
+					       path.buf, LOCK_DIE_ON_ERROR, -1);
 
 	fd = open(path.buf, O_WRONLY | O_CREAT | O_APPEND, 0666);
 	if (fd < 0)

midx-write.c

@@ -1627,8 +1627,8 @@ static int write_midx_internal(struct write_midx_opts *opts)
 			struct strbuf lock_name = STRBUF_INIT;
 
 			get_midx_chain_filename(opts->source, &lock_name);
-			hold_lock_file_for_update(&lk, lock_name.buf,
-						  LOCK_DIE_ON_ERROR);
+			repo_hold_lock_file_for_update(r, &lk, lock_name.buf,
+						       LOCK_DIE_ON_ERROR);
 			strbuf_release(&lock_name);
 		}
 
@@ -1647,7 +1647,8 @@ static int write_midx_internal(struct write_midx_opts *opts)
 		f = hashfd(r->hash_algo, get_tempfile_fd(incr),
 			   get_tempfile_path(incr));
 	} else {
-		hold_lock_file_for_update(&lk, midx_name.buf, LOCK_DIE_ON_ERROR);
+		repo_hold_lock_file_for_update(r, &lk, midx_name.buf,
+					       LOCK_DIE_ON_ERROR);
 		f = hashfd(r->hash_algo, get_lock_file_fd(&lk),
 			   get_lock_file_path(&lk));
 	}

odb/source-files.c

@@ -215,7 +215,8 @@ static int odb_source_files_write_alternate(struct odb_source *source,
 	int found = 0;
 	int ret;
 
-	hold_lock_file_for_update(&lock, path, LOCK_DIE_ON_ERROR);
+	repo_hold_lock_file_for_update(source->odb->repo, &lock, path,
+				       LOCK_DIE_ON_ERROR);
 	out = fdopen_lock_file(&lock, "w");
 	if (!out) {
 		ret = error_errno(_("unable to fdopen alternates lockfile"));

refs/files-backend.c

@@ -844,7 +844,7 @@ retry:
 		goto error_return;
 	}
 
-	if (hold_lock_file_for_update_timeout(
+	if (repo_hold_lock_file_for_update_timeout(refs->base.repo,
 			    &lock->lk, ref_file.buf, LOCK_NO_DEREF,
 			    get_files_ref_lock_timeout_ms(transaction->ref_store->repo)) < 0) {
 		int myerr = errno;
@@ -1253,8 +1253,8 @@ struct create_reflock_cb {
 static int create_reflock(const char *path, void *cb)
 {
 	struct create_reflock_cb *data = cb;
-	return hold_lock_file_for_update_timeout(
-			data->lk, path, LOCK_NO_DEREF,
+	return repo_hold_lock_file_for_update_timeout(
+			data->repo, data->lk, path, LOCK_NO_DEREF,
 			get_files_ref_lock_timeout_ms(data->repo)) < 0 ? -1 : 0;
 }
 
@@ -3584,7 +3584,9 @@ static int files_reflog_expire(struct ref_store *ref_store,
 		 * work we need, including cleaning up if the program
 		 * exits unexpectedly.
 		 */
-		if (hold_lock_file_for_update(&reflog_lock, log_file, 0) < 0) {
+		if (repo_hold_lock_file_for_update(ref_store->repo,
+						   &reflog_lock, log_file,
+						   0) < 0) {
 			struct strbuf err = STRBUF_INIT;
 			unable_to_lock_message(log_file, errno, &err);
 			error("%s", err.buf);

refs/packed-backend.c

@@ -1252,10 +1252,9 @@ int packed_refs_lock(struct ref_store *ref_store, int flags, struct strbuf *err)
 	 * don't write new content to it, but rather to a separate
 	 * tempfile.
 	 */
-	if (hold_lock_file_for_update_timeout(
-			    &refs->lock,
-			    refs->path,
-			    flags, refs->timeout_value) < 0) {
+	if (repo_hold_lock_file_for_update_timeout(ref_store->repo, &refs->lock,
+						   refs->path, flags,
+						   refs->timeout_value) < 0) {
 		unable_to_lock_message(refs->path, errno, err);
 		return -1;
 	}
@@ -1399,7 +1398,7 @@ static enum ref_transaction_error write_with_updates(struct packed_ref_store *re
 	packed_refs_path = get_locked_file_path(&refs->lock);
 	strbuf_addf(&sb, "%s.new", packed_refs_path);
 	free(packed_refs_path);
-	refs->tempfile = create_tempfile(sb.buf);
+	refs->tempfile = repo_create_tempfile(refs->base.repo, sb.buf);
 	if (!refs->tempfile) {
 		strbuf_addf(err, "unable to create file %s: %s",
 			    sb.buf, strerror(errno));

refs/packed-backend.h

@@ -21,7 +21,7 @@ struct ref_store *packed_ref_store_init(struct repository *repo,
 
 /*
  * Lock the packed-refs file for writing. Flags is passed to
- * hold_lock_file_for_update(). Return 0 on success. On errors, write
+ * repo_hold_lock_file_for_update(). Return 0 on success. On errors, write
  * an error message to `err` and return a nonzero value.
  */
 int packed_refs_lock(struct ref_store *ref_store, int flags, struct strbuf *err);

repack-midx.c

@@ -954,7 +954,8 @@ static int write_midx_incremental(struct repack_write_midx_opts *opts)
 					    lock_name.buf))
 		die_errno(_("unable to create leading directories of %s"),
 			  lock_name.buf);
-	hold_lock_file_for_update(&lf, lock_name.buf, LOCK_DIE_ON_ERROR);
+	repo_hold_lock_file_for_update(opts->existing->repo, &lf, lock_name.buf,
+				       LOCK_DIE_ON_ERROR);
 
 	if (!fdopen_lock_file(&lf, "w")) {
 		ret = error_errno(_("unable to open multi-pack-index chain file"));

repository.c

@@ -473,5 +473,5 @@ int repo_hold_locked_index(struct repository *repo,
 {
 	if (!repo->index_file)
 		BUG("the repo hasn't been setup");
-	return hold_lock_file_for_update(lf, repo->index_file, flags);
+	return repo_hold_lock_file_for_update(repo, lf, repo->index_file, flags);
 }

rerere.c

@@ -911,9 +911,9 @@ int setup_rerere(struct repository *r, struct string_list *merge_rr, int flags)
 	if (flags & RERERE_READONLY)
 		fd = 0;
 	else
-		fd = hold_lock_file_for_update(&write_lock,
-					       git_path_merge_rr(r),
-					       LOCK_DIE_ON_ERROR);
+		fd = repo_hold_lock_file_for_update(r, &write_lock,
+						    git_path_merge_rr(r),
+						    LOCK_DIE_ON_ERROR);
 	read_rr(r, merge_rr);
 	return fd;
 }

tempfile.c

@@ -42,8 +42,6 @@
  * file created by its parent.
  */
 
-#define USE_THE_REPOSITORY_VARIABLE
-
 #include "git-compat-util.h"
 #include "abspath.h"
 #include "path.h"
@@ -134,7 +132,8 @@ static void deactivate_tempfile(struct tempfile *tempfile)
 }
 
 /* Make sure errno contains a meaningful value on error */
-struct tempfile *create_tempfile_mode(const char *path, int mode)
+struct tempfile *repo_create_tempfile_mode(struct repository *r,
+					   const char *path, int mode)
 {
 	struct tempfile *tempfile = new_tempfile();
 
@@ -150,7 +149,7 @@ struct tempfile *create_tempfile_mode(const char *path, int mode)
 		return NULL;
 	}
 	activate_tempfile(tempfile);
-	if (adjust_shared_perm(the_repository, tempfile->filename.buf)) {
+	if (adjust_shared_perm(r, tempfile->filename.buf)) {
 		int save_errno = errno;
 		error("cannot fix permission bits on %s", tempfile->filename.buf);
 		delete_tempfile(&tempfile);

tempfile.h

@@ -4,6 +4,8 @@
 #include "list.h"
 #include "strbuf.h"
 
+struct repository;
+
 /*
  * Handle temporary files.
  *
@@ -92,11 +94,13 @@ struct tempfile {
  * `core.sharedRepository`, so it is not guaranteed to have the given
  * mode.
  */
-struct tempfile *create_tempfile_mode(const char *path, int mode);
+struct tempfile *repo_create_tempfile_mode(struct repository *r,
+					   const char *path, int mode);
 
-static inline struct tempfile *create_tempfile(const char *path)
+static inline struct tempfile *repo_create_tempfile(struct repository *r,
+						    const char *path)
 {
-	return create_tempfile_mode(path, 0666);
+	return repo_create_tempfile_mode(r, path, 0666);
 }
 
 /*