Merge branch 'ma/http-walker-no-partial'

"git http-fetch" (deprecated) had an optional and experimental
"feature" to fetch only commits and/or trees, which nobody used.
This has been removed.

* ma/http-walker-no-partial:
  walker: drop fields of `struct walker` which are always 1
  http-fetch: make `-a` standard behaviour

Documentation/git-http-fetch.txt

@@ -15,8 +15,9 @@ DESCRIPTION
 -----------
 Downloads a remote Git repository via HTTP.
 
-*NOTE*: use of this command without -a is deprecated.  The -a
-behaviour will become the default in a future release.
+This command always gets all objects. Historically, there were three options
+`-a`, `-c` and `-t` for choosing which objects to download. They are now
+silently ignored.
 
 OPTIONS
 -------
@@ -24,12 +25,8 @@ commit-id::
         Either the hash or the filename under [URL]/refs/ to
         pull.
 
--c::
-	Get the commit objects.
--t::
-	Get trees associated with the commit objects.
--a::
-	Get all the objects.
+-a, -c, -t::
+	These options are ignored for historical reasons.
 -v::
 	Report what is downloaded.
 

http-fetch.c

@@ -17,21 +17,13 @@ int cmd_main(int argc, const char **argv)
 	char *url = NULL;
 	int arg = 1;
 	int rc = 0;
-	int get_tree = 0;
-	int get_history = 0;
-	int get_all = 0;
 	int get_verbosely = 0;
 	int get_recover = 0;
 
 	while (arg < argc && argv[arg][0] == '-') {
 		if (argv[arg][1] == 't') {
-			get_tree = 1;
 		} else if (argv[arg][1] == 'c') {
-			get_history = 1;
 		} else if (argv[arg][1] == 'a') {
-			get_all = 1;
-			get_tree = 1;
-			get_history = 1;
 		} else if (argv[arg][1] == 'v') {
 			get_verbosely = 1;
 		} else if (argv[arg][1] == 'w') {
@@ -55,10 +47,6 @@ int cmd_main(int argc, const char **argv)
 		commits = 1;
 	}
 
-	if (get_all == 0)
-		warning("http-fetch: use without -a is deprecated.\n"
-			"In a future release, -a will become the default.");
-
 	if (argv[arg])
 		str_end_url_with_slash(argv[arg], &url);
 
@@ -68,9 +56,6 @@ int cmd_main(int argc, const char **argv)
 
 	http_init(NULL, url, 0);
 	walker = get_http_walker(url);
-	walker->get_tree = get_tree;
-	walker->get_history = get_history;
-	walker->get_all = get_all;
 	walker->get_verbosely = get_verbosely;
 	walker->get_recover = get_recover;
 

remote-curl.c

@@ -869,9 +869,6 @@ static int fetch_dumb(int nr_heads, struct ref **to_fetch)
 		targets[i] = xstrdup(oid_to_hex(&to_fetch[i]->old_oid));
 
 	walker = get_http_walker(url.buf);
-	walker->get_all = 1;
-	walker->get_tree = 1;
-	walker->get_history = 1;
 	walker->get_verbosely = options.verbosity >= 3;
 	walker->get_recover = 0;
 	ret = walker_fetch(walker, nr_heads, targets, NULL, NULL);

t/t5550-http-fetch-dumb.sh

@@ -169,6 +169,17 @@ test_expect_success 'fetch changes via manual http-fetch' '
 	test_cmp file clone2/file
 '
 
+test_expect_success 'manual http-fetch without -a works just as well' '
+	cp -R clone-tmpl clone3 &&
+
+	HEAD=$(git rev-parse --verify HEAD) &&
+	(cd clone3 &&
+	 git http-fetch -w heads/master-new $HEAD $(git config remote.origin.url) &&
+	 git checkout master-new &&
+	 test $HEAD = $(git rev-parse --verify HEAD)) &&
+	test_cmp file clone3/file
+'
+
 test_expect_success 'http remote detects correct HEAD' '
 	git push public master:other &&
 	(cd clone &&

walker.c

@@ -72,6 +72,8 @@ static struct commit_list *complete = NULL;
 
 static int process_commit(struct walker *walker, struct commit *commit)
 {
+	struct commit_list *parents;
+
 	if (parse_commit(commit))
 		return -1;
 
@@ -86,19 +88,14 @@ static int process_commit(struct walker *walker, struct commit *commit)
 
 	walker_say(walker, "walk %s\n", oid_to_hex(&commit->object.oid));
 
-	if (walker->get_tree) {
-		if (process(walker, &commit->tree->object))
+	if (process(walker, &commit->tree->object))
+		return -1;
+
+	for (parents = commit->parents; parents; parents = parents->next) {
+		if (process(walker, &parents->item->object))
 			return -1;
-		if (!walker->get_all)
-			walker->get_tree = 0;
-	}
-	if (walker->get_history) {
-		struct commit_list *parents = commit->parents;
-		for (; parents; parents = parents->next) {
-			if (process(walker, &parents->item->object))
-				return -1;
-		}
 	}
+
 	return 0;
 }
 

walker.h

@@ -9,9 +9,6 @@ struct walker {
 	void (*prefetch)(struct walker *, unsigned char *sha1);
 	int (*fetch)(struct walker *, unsigned char *sha1);
 	void (*cleanup)(struct walker *);
-	int get_tree;
-	int get_history;
-	int get_all;
 	int get_verbosely;
 	int get_recover;