Merge branch 'fc/trivial'

A random collection of style fixes and minor doc updates.

* fc/trivial:
  setup: trivial style fixes
  run-command: trivial style fixes
  diff: trivial style fix
  revision: trivial style fixes
  pretty: trivial style fix
  describe: trivial style fixes
  transport-helper: trivial style fix
  sha1-name: trivial style cleanup
  branch: trivial style fix
  revision: add missing include
  doc/pull: clarify the illustrations
  t: replace pulls with merges
  merge: simplify ff-only option

Author: gitster

Documentation/git-pull.txt

@@ -42,6 +42,8 @@ Assume the following history exists and the current branch is
 	  A---B---C master on origin
 	 /
     D---E---F---G master
+	^
+	origin/master in your repository
 ------------
 
 Then "`git pull`" will fetch and replay the changes from the remote
@@ -51,7 +53,7 @@ result in a new commit along with the names of the two parent commits
 and a log message from the user describing the changes.
 
 ------------
-	  A---B---C remotes/origin/master
+	  A---B---C origin/master
 	 /         \
     D---E---F---G---H master
 ------------

builtin/branch.c

@@ -975,9 +975,8 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
 			die(_("no such branch '%s'"), argv[0]);
 		}
 
-		if (!branch_has_merge_config(branch)) {
+		if (!branch_has_merge_config(branch))
 			die(_("Branch '%s' has no upstream information"), branch->name);
-		}
 
 		strbuf_addf(&buf, "branch.%s.remote", branch->name);
 		git_config_set_multivar(buf.buf, NULL, NULL, 1);

builtin/describe.c

@@ -9,7 +9,7 @@
 #include "hash.h"
 #include "argv-array.h"
 
-#define SEEN		(1u<<0)
+#define SEEN		(1u << 0)
 #define MAX_TAGS	(FLAG_BITS - 1)
 
 static const char * const describe_usage[] = {
@@ -36,7 +36,6 @@ static const char *diff_index_args[] = {
 	"diff-index", "--quiet", "HEAD", "--", NULL
 };
 
-
 struct commit_name {
 	struct commit_name *next;
 	unsigned char peeled[20];
@@ -46,6 +45,7 @@ struct commit_name {
 	unsigned char sha1[20];
 	char *path;
 };
+
 static const char *prio_names[] = {
 	"head", "lightweight", "annotated",
 };
@@ -488,9 +488,8 @@ int cmd_describe(int argc, const char **argv, const char *prefix)
 	} else if (dirty) {
 		die(_("--dirty is incompatible with commit-ishes"));
 	} else {
-		while (argc-- > 0) {
+		while (argc-- > 0)
 			describe(*argv++, argc == 0);
-		}
 	}
 	return 0;
 }

builtin/diff.c

@@ -169,7 +169,7 @@ static int builtin_diff_tree(struct rev_info *revs,
 	if (ent1->item->flags & UNINTERESTING)
 		swap = 1;
 	sha1[swap] = ent0->item->sha1;
-	sha1[1-swap] = ent1->item->sha1;
+	sha1[1 - swap] = ent1->item->sha1;
 	diff_tree_sha1(sha1[0], sha1[1], "", &revs->diffopt);
 	log_tree_diff_flush(revs);
 	return 0;

builtin/merge.c

@@ -186,13 +186,6 @@ static int option_parse_n(const struct option *opt,
 	return 0;
 }
 
-static int option_parse_ff_only(const struct option *opt,
-			  const char *arg, int unset)
-{
-	fast_forward = FF_ONLY;
-	return 0;
-}
-
 static struct option builtin_merge_options[] = {
 	{ OPTION_CALLBACK, 'n', NULL, NULL, NULL,
 		N_("do not show a diffstat at the end of the merge"),
@@ -210,9 +203,9 @@ static struct option builtin_merge_options[] = {
 	OPT_BOOL('e', "edit", &option_edit,
 		N_("edit message before committing")),
 	OPT_SET_INT(0, "ff", &fast_forward, N_("allow fast-forward (default)"), FF_ALLOW),
-	{ OPTION_CALLBACK, 0, "ff-only", NULL, NULL,
+	{ OPTION_SET_INT, 0, "ff-only", &fast_forward, NULL,
 		N_("abort if fast-forward is not possible"),
-		PARSE_OPT_NOARG | PARSE_OPT_NONEG, option_parse_ff_only },
+		PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, FF_ONLY },
 	OPT_RERERE_AUTOUPDATE(&allow_rerere_auto),
 	OPT_BOOL(0, "verify-signatures", &verify_signatures,
 		N_("Verify that the named commit has a valid GPG signature")),

pretty.c

@@ -497,7 +497,7 @@ void pp_user_info(struct pretty_print_context *pp,
 static int is_empty_line(const char *line, int *len_p)
 {
 	int len = *len_p;
-	while (len && isspace(line[len-1]))
+	while (len && isspace(line[len - 1]))
 		len--;
 	*len_p = len;
 	return !len;

revision.c

@@ -1519,7 +1519,7 @@ struct cmdline_pathspec {
 static void append_prune_data(struct cmdline_pathspec *prune, const char **av)
 {
 	while (*av) {
-		ALLOC_GROW(prune->path, prune->nr+1, prune->alloc);
+		ALLOC_GROW(prune->path, prune->nr + 1, prune->alloc);
 		prune->path[prune->nr++] = *(av++);
 	}
 }
@@ -1531,7 +1531,7 @@ static void read_pathspec_from_stdin(struct rev_info *revs, struct strbuf *sb,
 		int len = sb->len;
 		if (len && sb->buf[len - 1] == '\n')
 			sb->buf[--len] = '\0';
-		ALLOC_GROW(prune->path, prune->nr+1, prune->alloc);
+		ALLOC_GROW(prune->path, prune->nr + 1, prune->alloc);
 		prune->path[prune->nr++] = xstrdup(sb->buf);
 	}
 }
@@ -2134,7 +2134,7 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, struct s
 		 *	call init_pathspec() to set revs->prune_data here.
 		 * }
 		 */
-		ALLOC_GROW(prune_data.path, prune_data.nr+1, prune_data.alloc);
+		ALLOC_GROW(prune_data.path, prune_data.nr + 1, prune_data.alloc);
 		prune_data.path[prune_data.nr++] = NULL;
 		parse_pathspec(&revs->prune_data, 0, 0,
 			       revs->prefix, prune_data.path);
@@ -2987,7 +2987,7 @@ static struct commit *get_revision_internal(struct rev_info *revs)
 	if (revs->max_count) {
 		c = get_revision_1(revs);
 		if (c) {
-			while (0 < revs->skip_count) {
+			while (revs->skip_count > 0) {
 				revs->skip_count--;
 				c = get_revision_1(revs);
 				if (!c)
@@ -3002,9 +3002,8 @@ static struct commit *get_revision_internal(struct rev_info *revs)
 	if (c)
 		c->object.flags |= SHOWN;
 
-	if (!revs->boundary) {
+	if (!revs->boundary)
 		return c;
-	}
 
 	if (!c) {
 		/*
@@ -3050,9 +3049,8 @@ struct commit *get_revision(struct rev_info *revs)
 
 	if (revs->reverse) {
 		reversed = NULL;
-		while ((c = get_revision_internal(revs))) {
+		while ((c = get_revision_internal(revs)))
 			commit_list_insert(c, &reversed);
-		}
 		revs->commits = reversed;
 		revs->reverse = 0;
 		revs->reverse_output_stage = 1;

revision.h

@@ -5,6 +5,7 @@
 #include "grep.h"
 #include "notes.h"
 #include "commit.h"
+#include "diff.h"
 
 #define SEEN		(1u<<0)
 #define UNINTERESTING   (1u<<1)

run-command.c

@@ -406,13 +406,12 @@ int start_command(struct child_process *cmd)
 					unsetenv(*cmd->env);
 			}
 		}
-		if (cmd->git_cmd) {
+		if (cmd->git_cmd)
 			execv_git_cmd(cmd->argv);
-		} else if (cmd->use_shell) {
+		else if (cmd->use_shell)
 			execv_shell_cmd(cmd->argv);
-		} else {
+		else
 			sane_execvp(cmd->argv[0], (char *const*) cmd->argv);
-		}
 		if (errno == ENOENT) {
 			if (!cmd->silent_exec_failure)
 				error("cannot run %s: %s", cmd->argv[0],
@@ -446,7 +445,6 @@ int start_command(struct child_process *cmd)
 		cmd->pid = -1;
 	}
 	close(notify_pipe[0]);
-
 }
 #else
 {
@@ -480,11 +478,10 @@ int start_command(struct child_process *cmd)
 	if (cmd->env)
 		env = make_augmented_environ(cmd->env);
 
-	if (cmd->git_cmd) {
+	if (cmd->git_cmd)
 		cmd->argv = prepare_git_cmd(cmd->argv);
-	} else if (cmd->use_shell) {
+	else if (cmd->use_shell)
 		cmd->argv = prepare_shell_cmd(cmd->argv);
-	}
 
 	cmd->pid = mingw_spawnvpe(cmd->argv[0], cmd->argv, env, cmd->dir,
 				  fhin, fhout, fherr);

setup.c

@@ -563,7 +563,7 @@ static const char *setup_git_directory_gently_1(int *nongit_ok)
 {
 	const char *env_ceiling_dirs = getenv(CEILING_DIRECTORIES_ENVIRONMENT);
 	struct string_list ceiling_dirs = STRING_LIST_INIT_DUP;
-	static char cwd[PATH_MAX+1];
+	static char cwd[PATH_MAX + 1];
 	const char *gitdirenv, *ret;
 	char *gitfile;
 	int len, offset, offset_parent, ceil_offset = -1;
@@ -578,7 +578,7 @@ static const char *setup_git_directory_gently_1(int *nongit_ok)
 	if (nongit_ok)
 		*nongit_ok = 0;
 
-	if (!getcwd(cwd, sizeof(cwd)-1))
+	if (!getcwd(cwd, sizeof(cwd) - 1))
 		die_errno("Unable to read current working directory");
 	offset = len = strlen(cwd);