Merge branch 'maint'

* maint:
  gitweb: clarify search results page when no matching commit found
  Documentation: add a FILES section for show-ref
  Makefile: add missing dependency on http.h
  Makefile: add missing dependencies on url.h
  Documentation/git-log: Clarify --full-diff
  git-rebase: fix typo when parsing --force-rebase
  imap-send: Fix sprintf usage
  prune: allow --dry-run for -n and --verbose for -v
  notes: allow --dry-run for -n and --verbose for -v
  Document -B<n>[/<m>], -M<n> and -C<n> variants of -B, -M and -C
  Documentation: cite git-am from git-apply
  t7003: fix subdirectory-filter test
  Allow "check-ref-format --branch" from subdirectory
  check-ref-format: handle subcommands in separate functions
  pretty-options.txt: match --format's documentation with implementation.

Author: gitster

Documentation/diff-options.txt

@@ -206,10 +206,29 @@ endif::git-format-patch[]
 	the diff-patch output format.  Non default number of
 	digits can be specified with `--abbrev=<n>`.
 
--B::
-	Break complete rewrite changes into pairs of delete and create.
-
--M::
+-B[<n>][/<m>]::
+	Break complete rewrite changes into pairs of delete and
+	create. This serves two purposes:
++
+It affects the way a change that amounts to a total rewrite of a file
+not as a series of deletion and insertion mixed together with a very
+few lines that happen to match textually as the context, but as a
+single deletion of everything old followed by a single insertion of
+everything new, and the number `m` controls this aspect of the -B
+option (defaults to 60%). `-B/70%` specifies that less than 30% of the
+original should remain in the result for git to consider it a total
+rewrite (i.e. otherwise the resulting patch will be a series of
+deletion and insertion mixed together with context lines).
++
+When used with -M, a totally-rewritten file is also considered as the
+source of a rename (usually -M only considers a file that disappeared
+as the source of a rename), and the number `n` controls this aspect of
+the -B option (defaults to 50%). `-B20%` specifies that a change with
+addition and deletion compared to 20% or more of the file's size are
+eligible for being picked up as a possible source of a rename to
+another file.
+
+-M[<n>]::
 ifndef::git-log[]
 	Detect renames.
 endif::git-log[]
@@ -218,9 +237,15 @@ ifdef::git-log[]
 	For following files across renames while traversing history, see
 	`--follow`.
 endif::git-log[]
+	If `n` is specified, it is a is a threshold on the similarity
+	index (i.e. amount of addition/deletions compared to the
+	file's size). For example, `-M90%` means git should consider a
+	delete/add pair to be a rename if more than 90% of the file
+	hasn't changed.
 
--C::
+-C[<n>]::
 	Detect copies as well as renames.  See also `--find-copies-harder`.
+	If `n` is specified, it has the same meaning as for `-M<n>`.
 
 ifndef::git-format-patch[]
 --diff-filter=[ACDMRTUXB*]::

Documentation/git-apply.txt

@@ -26,6 +26,10 @@ with the `--cache` option the patch is only applied to the index.
 Without these options, the command applies the patch only to files,
 and does not require them to be in a git repository.
 
+This command applies the patch but does not create a commit.  Use
+linkgit:git-am[1] to create commits from patches generated by
+linkgit:git-format-patch[1] and/or received by email.
+
 OPTIONS
 -------
 <patch>...::
@@ -242,6 +246,12 @@ If `--index` is not specified, then the submodule commits in the patch
 are ignored and only the absence or presence of the corresponding
 subdirectory is checked and (if possible) updated.
 
+
+SEE ALSO
+--------
+linkgit:git-am[1].
+
+
 Author
 ------
 Written by Linus Torvalds <[email protected]>

Documentation/git-log.txt

@@ -55,6 +55,9 @@ OPTIONS
 	paths.  With this, the full diff is shown for commits that touch
 	the specified paths; this means that "<path>..." limits only
 	commits, and doesn't limit diff for those commits.
++
+Note that this affects all diff-based output types, e.g. those
+produced by --stat etc.
 
 --log-size::
 	Before the log message print out its size in bytes. Intended

Documentation/git-notes.txt

@@ -129,10 +129,12 @@ OPTIONS
 	is taken to be in `refs/notes/` if it is not qualified.
 
 -n::
+--dry-run::
 	Do not remove anything; just report the object names whose notes
 	would be removed.
 
 -v::
+--verbose::
 	Report all object names whose notes are removed.
 
 

Documentation/git-prune.txt

@@ -31,10 +31,12 @@ OPTIONS
 -------
 
 -n::
+--dry-run::
 	Do not remove anything; just report what it would
 	remove.
 
 -v::
+--verbose::
 	Report all removed objects.
 
 \--::

Documentation/git-show-ref.txt

@@ -163,9 +163,15 @@ flag, so you can do
 
 to get a listing of all tags together with what they dereference.
 
+FILES
+-----
+`.git/refs/*`, `.git/packed-refs`
+
 SEE ALSO
 --------
-linkgit:git-ls-remote[1]
+linkgit:git-ls-remote[1],
+linkgit:git-update-ref[1],
+linkgit:gitrepository-layout[5]
 
 AUTHORS
 -------

Documentation/pretty-options.txt

@@ -1,5 +1,5 @@
 --pretty[='<format>']::
---format[='<format>']::
+--format='<format>'::
 
 	Pretty-print the contents of the commit logs in a given format,
 	where '<format>' can be one of 'oneline', 'short', 'medium',

Makefile

@@ -1854,8 +1854,9 @@ builtin/prune.o builtin/reflog.o reachable.o: reachable.h
 builtin/commit.o builtin/revert.o wt-status.o: wt-status.h
 builtin/tar-tree.o archive-tar.o: tar.h
 builtin/pack-objects.o: thread-utils.h
+connect.o transport.o http-backend.o: url.h
 http-fetch.o http-walker.o remote-curl.o transport.o walker.o: walker.h
-http.o http-walker.o http-push.o remote-curl.o: http.h
+http.o http-walker.o http-push.o http-fetch.o remote-curl.o: http.h
 
 xdiff-interface.o $(XDIFF_OBJS): \
 	xdiff/xinclude.h xdiff/xmacros.h xdiff/xdiff.h xdiff/xtypes.h \

builtin/check-ref-format.c

@@ -33,28 +33,38 @@ static void collapse_slashes(char *dst, const char *src)
 	*dst = '\0';
 }
 
+static int check_ref_format_branch(const char *arg)
+{
+	struct strbuf sb = STRBUF_INIT;
+	int nongit;
+
+	setup_git_directory_gently(&nongit);
+	if (strbuf_check_branch_ref(&sb, arg))
+		die("'%s' is not a valid branch name", arg);
+	printf("%s\n", sb.buf + 11);
+	return 0;
+}
+
+static int check_ref_format_print(const char *arg)
+{
+	char *refname = xmalloc(strlen(arg) + 1);
+
+	if (check_ref_format(arg))
+		return 1;
+	collapse_slashes(refname, arg);
+	printf("%s\n", refname);
+	return 0;
+}
+
 int cmd_check_ref_format(int argc, const char **argv, const char *prefix)
 {
 	if (argc == 2 && !strcmp(argv[1], "-h"))
 		usage(builtin_check_ref_format_usage);
 
-	if (argc == 3 && !strcmp(argv[1], "--branch")) {
-		struct strbuf sb = STRBUF_INIT;
-
-		if (strbuf_check_branch_ref(&sb, argv[2]))
-			die("'%s' is not a valid branch name", argv[2]);
-		printf("%s\n", sb.buf + 11);
-		exit(0);
-	}
-	if (argc == 3 && !strcmp(argv[1], "--print")) {
-		char *refname = xmalloc(strlen(argv[2]) + 1);
-
-		if (check_ref_format(argv[2]))
-			exit(1);
-		collapse_slashes(refname, argv[2]);
-		printf("%s\n", refname);
-		exit(0);
-	}
+	if (argc == 3 && !strcmp(argv[1], "--branch"))
+		return check_ref_format_branch(argv[2]);
+	if (argc == 3 && !strcmp(argv[1], "--print"))
+		return check_ref_format_print(argv[2]);
 	if (argc != 2)
 		usage(builtin_check_ref_format_usage);
 	return !!check_ref_format(argv[1]);

builtin/notes.c

@@ -798,8 +798,9 @@ static int prune(int argc, const char **argv, const char *prefix)
 	struct notes_tree *t;
 	int show_only = 0, verbose = 0;
 	struct option options[] = {
-		OPT_BOOLEAN('n', NULL, &show_only, "do not remove, show only"),
-		OPT_BOOLEAN('v', NULL, &verbose, "report pruned notes"),
+		OPT_BOOLEAN('n', "dry-run", &show_only,
+			    "do not remove, show only"),
+		OPT_BOOLEAN('v', "verbose", &verbose, "report pruned notes"),
 		OPT_END()
 	};
 

builtin/prune.c

@@ -125,10 +125,9 @@ int cmd_prune(int argc, const char **argv, const char *prefix)
 {
 	struct rev_info revs;
 	const struct option options[] = {
-		OPT_BOOLEAN('n', NULL, &show_only,
+		OPT_BOOLEAN('n', "dry-run", &show_only,
 			    "do not remove, show only"),
-		OPT_BOOLEAN('v', NULL, &verbose,
-			"report pruned objects"),
+		OPT_BOOLEAN('v', "verbose", &verbose, "report pruned objects"),
 		OPT_DATE(0, "expire", &expire,
 			 "expire objects older than <time>"),
 		OPT_END()

diffcore.h

@@ -18,7 +18,7 @@
 #define MAX_SCORE 60000.0
 #define DEFAULT_RENAME_SCORE 30000 /* rename/copy similarity minimum (50%) */
 #define DEFAULT_BREAK_SCORE  30000 /* minimum for break to happen (50%) */
-#define DEFAULT_MERGE_SCORE  36000 /* maximum for break-merge to happen 60%) */
+#define DEFAULT_MERGE_SCORE  36000 /* maximum for break-merge to happen (60%) */
 
 #define MINIMUM_BREAK_SIZE     400 /* do not break a file smaller than this */
 

git-rebase.sh

@@ -346,7 +346,7 @@ do
 	--root)
 		rebase_root=t
 		;;
-	-f|--f|--fo|--for|--forc|force|--force-r|--force-re|--force-reb|--force-reba|--force-rebas|--force-rebase|--no-ff)
+	-f|--f|--fo|--for|--forc|--force|--force-r|--force-re|--force-reb|--force-reba|--force-rebas|--force-rebase|--no-ff)
 		force_rebase=t
 		;;
 	--rerere-autoupdate|--no-rerere-autoupdate)

gitweb/gitweb.perl

@@ -6521,12 +6521,13 @@ sub git_search {
 			$paging_nav .= " ⋅ next";
 		}
 
-		if ($#commitlist >= 100) {
-		}
-
 		git_print_page_nav('','', $hash,$co{'tree'},$hash, $paging_nav);
 		git_print_header_div('commit', esc_html($co{'title'}), $hash);
-		git_search_grep_body(\@commitlist, 0, 99, $next_link);
+		if ($page == 0 && !@commitlist) {
+			print "<p>No match.</p>\n";
+		} else {
+			git_search_grep_body(\@commitlist, 0, 99, $next_link);
+		}
 	}
 
 	if ($searchtype eq 'pickaxe') {

imap-send.c

@@ -543,9 +543,13 @@ static struct imap_cmd *v_issue_imap_cmd(struct imap_store *ctx,
 	while (imap->literal_pending)
 		get_cmd_result(ctx, NULL);
 
-	bufl = nfsnprintf(buf, sizeof(buf), cmd->cb.data ? CAP(LITERALPLUS) ?
-			   "%d %s{%d+}\r\n" : "%d %s{%d}\r\n" : "%d %s\r\n",
-			   cmd->tag, cmd->cmd, cmd->cb.dlen);
+	if (!cmd->cb.data)
+		bufl = nfsnprintf(buf, sizeof(buf), "%d %s\r\n", cmd->tag, cmd->cmd);
+	else
+		bufl = nfsnprintf(buf, sizeof(buf), "%d %s{%d%s}\r\n",
+				  cmd->tag, cmd->cmd, cmd->cb.dlen,
+				  CAP(LITERALPLUS) ? "+" : "");
+
 	if (Verbose) {
 		if (imap->num_in_progress)
 			printf("(%d in progress) ", imap->num_in_progress);
@@ -1086,7 +1090,7 @@ static struct store *imap_open_store(struct imap_server_conf *srvc)
 		int gai;
 		char portstr[6];
 
-		snprintf(portstr, sizeof(portstr), "%hu", srvc->port);
+		snprintf(portstr, sizeof(portstr), "%d", srvc->port);
 
 		memset(&hints, 0, sizeof(hints));
 		hints.ai_socktype = SOCK_STREAM;

t/t1402-check-ref-format.sh

@@ -41,6 +41,23 @@ test_expect_success "check-ref-format --branch @{-1}" '
 	refname2=$(git check-ref-format --branch @{-2}) &&
 	test "$refname2" = master'
 
+test_expect_success 'check-ref-format --branch from subdir' '
+	mkdir subdir &&
+
+	T=$(git write-tree) &&
+	sha1=$(echo A | git commit-tree $T) &&
+	git update-ref refs/heads/master $sha1 &&
+	git update-ref refs/remotes/origin/master $sha1
+	git checkout master &&
+	git checkout origin/master &&
+	git checkout master &&
+	refname=$(
+		cd subdir &&
+		git check-ref-format --branch @{-1}
+	) &&
+	test "$refname" = "$sha1"
+'
+
 valid_ref_normalized() {
 	test_expect_success "ref name '$1' simplifies to '$2'" "
 		refname=\$(git check-ref-format --print '$1') &&

t/t7003-filter-branch.sh

@@ -147,7 +147,8 @@ test_expect_success 'use index-filter to move into a subdirectory' '
 	          GIT_INDEX_FILE=\$GIT_INDEX_FILE.new \
 			git update-index --index-info &&
 		  mv \"\$GIT_INDEX_FILE.new\" \"\$GIT_INDEX_FILE\"" directorymoved &&
-	test -z "$(git diff HEAD directorymoved:newsubdir)"'
+	git diff --exit-code HEAD directorymoved:newsubdir
+'
 
 test_expect_success 'stops when msg filter fails' '
 	old=$(git rev-parse HEAD) &&