fmt-merge-msg: use branch.$name.description

This teaches "merge --log" and fmt-merge-msg to use branch description information when merging a local topic branch into the mainline. The description goes between the branch name label and the list of commit titles. The refactoring to share the common configuration parsing between merge and fmt-merge-msg needs to be made into a separate patch. Signed-off-by: Junio C Hamano <gitster@pobox.com>

Junio C Hamano committed Oct 6, 2011 at 23:12 UTC 898eacd8ada2d012f977948350ed60845e238037
5 files changed +78 -26
Makefile
+1
@@ -527,6 +527,7 @@ LIB_H += diffcore.h
527 LIB_H += diff.h
528 LIB_H += dir.h
529 LIB_H += exec_cmd.h
530 +LIB_H += fmt-merge-msg.h
531 LIB_H += fsck.h
532 LIB_H += gettext.h
533 LIB_H += git-compat-util.h
builtin/fmt-merge-msg.c
+59 -16
@@ -5,23 +5,27 @@
5 #include "revision.h"
6 #include "tag.h"
7 #include "string-list.h"
8 +#include "branch.h"
9 +#include "fmt-merge-msg.h"
10
11 static const char * const fmt_merge_msg_usage[] = {
12 "git fmt-merge-msg [-m <message>] [--log[=<n>]|--no-log] [--file <file>]",
13 NULL
14 };
15
14 -static int shortlog_len;
16 +static int use_branch_desc;
17
16 -static int fmt_merge_msg_config(const char *key, const char *value, void *cb)
18 +int fmt_merge_msg_config(const char *key, const char *value, void *cb)
19 {
20 if (!strcmp(key, "merge.log") || !strcmp(key, "merge.summary")) {
21 int is_bool;
20 - shortlog_len = git_config_bool_or_int(key, value, &is_bool);
21 - if (!is_bool && shortlog_len < 0)
22 + merge_log_config = git_config_bool_or_int(key, value, &is_bool);
23 + if (!is_bool && merge_log_config < 0)
24 return error("%s: negative length %s", key, value);
23 - if (is_bool && shortlog_len)
24 - shortlog_len = DEFAULT_MERGE_LOG_LEN;
25 + if (is_bool && merge_log_config)
26 + merge_log_config = DEFAULT_MERGE_LOG_LEN;
27 + } else if (!strcmp(key, "merge.branchdesc")) {
28 + use_branch_desc = git_config_bool(key, value);
29 }
30 return 0;
31 }
@@ -31,6 +35,11 @@ struct src_data {
35 int head_status;
36 };
37
38 +struct origin_data {
39 + unsigned char sha1[20];
40 + int is_local_branch:1;
41 +};
42 +
43 static void init_src_data(struct src_data *data)
44 {
45 data->branch.strdup_strings = 1;
@@ -45,7 +54,7 @@ static struct string_list origins = STRING_LIST_INIT_DUP;
54 static int handle_line(char *line)
55 {
56 int i, len = strlen(line);
48 - unsigned char *sha1;
57 + struct origin_data *origin_data;
58 char *src, *origin;
59 struct src_data *src_data;
60 struct string_list_item *item;
@@ -61,11 +70,13 @@ static int handle_line(char *line)
70 return 2;
71
72 line[40] = 0;
64 - sha1 = xmalloc(20);
65 - i = get_sha1(line, sha1);
73 + origin_data = xcalloc(1, sizeof(struct origin_data));
74 + i = get_sha1(line, origin_data->sha1);
75 line[40] = '\t';
67 - if (i)
76 + if (i) {
77 + free(origin_data);
78 return 3;
79 + }
80
81 if (line[len - 1] == '\n')
82 line[len - 1] = 0;
@@ -93,6 +104,7 @@ static int handle_line(char *line)
104 origin = src;
105 src_data->head_status |= 1;
106 } else if (!prefixcmp(line, "branch ")) {
107 + origin_data->is_local_branch = 1;
108 origin = line + 7;
109 string_list_append(&src_data->branch, origin);
110 src_data->head_status |= 2;
@@ -119,7 +131,9 @@ static int handle_line(char *line)
131 sprintf(new_origin, "%s of %s", origin, src);
132 origin = new_origin;
133 }
122 - string_list_append(&origins, origin)->util = sha1;
134 + if (strcmp(".", src))
135 + origin_data->is_local_branch = 0;
136 + string_list_append(&origins, origin)->util = origin_data;
137 return 0;
138 }
139
@@ -140,9 +154,30 @@ static void print_joined(const char *singular, const char *plural,
154 }
155 }
156
143 -static void shortlog(const char *name, unsigned char *sha1,
144 - struct commit *head, struct rev_info *rev, int limit,
145 - struct strbuf *out)
157 +static void add_branch_desc(struct strbuf *out, const char *name)
158 +{
159 + struct strbuf desc = STRBUF_INIT;
160 +
161 + if (!read_branch_desc(&desc, name)) {
162 + const char *bp = desc.buf;
163 + while (*bp) {
164 + const char *ep = strchrnul(bp, '\n');
165 + if (*ep)
166 + ep++;
167 + strbuf_addf(out, " : %.*s", (int)(ep - bp), bp);
168 + bp = ep;
169 + }
170 + if (out->buf[out->len - 1] != '\n')
171 + strbuf_addch(out, '\n');
172 + }
173 + strbuf_release(&desc);
174 +}
175 +
176 +static void shortlog(const char *name,
177 + struct origin_data *origin_data,
178 + struct commit *head,
179 + struct rev_info *rev, int limit,
180 + struct strbuf *out)
181 {
182 int i, count = 0;
183 struct commit *commit;
@@ -150,6 +185,7 @@ static void shortlog(const char *name, unsigned char *sha1,
185 struct string_list subjects = STRING_LIST_INIT_DUP;
186 int flags = UNINTERESTING | TREESAME | SEEN | SHOWN | ADDED;
187 struct strbuf sb = STRBUF_INIT;
188 + const unsigned char *sha1 = origin_data->sha1;
189
190 branch = deref_tag(parse_object(sha1), sha1_to_hex(sha1), 40);
191 if (!branch || branch->type != OBJ_COMMIT)
@@ -188,6 +224,9 @@ static void shortlog(const char *name, unsigned char *sha1,
224 else
225 strbuf_addf(out, "\n* %s:\n", name);
226
227 + if (origin_data->is_local_branch && use_branch_desc)
228 + add_branch_desc(out, name);
229 +
230 for (i = 0; i < subjects.nr; i++)
231 if (i >= limit)
232 strbuf_addf(out, " ...\n");
@@ -303,8 +342,9 @@ static int do_fmt_merge_msg(int merge_title, struct strbuf *in,
342 strbuf_addch(out, '\n');
343
344 for (i = 0; i < origins.nr; i++)
306 - shortlog(origins.items[i].string, origins.items[i].util,
307 - head, &rev, shortlog_len, out);
345 + shortlog(origins.items[i].string,
346 + origins.items[i].util,
347 + head, &rev, shortlog_len, out);
348 }
349 return 0;
350 }
@@ -318,6 +358,7 @@ int cmd_fmt_merge_msg(int argc, const char **argv, const char *prefix)
358 {
359 const char *inpath = NULL;
360 const char *message = NULL;
361 + int shortlog_len = -1;
362 struct option options[] = {
363 { OPTION_INTEGER, 0, "log", &shortlog_len, "n",
364 "populate log with at most <n> entries from shortlog",
@@ -341,6 +382,8 @@ int cmd_fmt_merge_msg(int argc, const char **argv, const char *prefix)
382 0);
383 if (argc > 0)
384 usage_with_options(fmt_merge_msg_usage, options);
385 + if (shortlog_len < 0)
386 + shortlog_len = (merge_log_config > 0) ? merge_log_config : 0;
387 if (message && !shortlog_len) {
388 char nl = '\n';
389 write_in_full(STDOUT_FILENO, message, strlen(message));
builtin/merge.c
+10 -10
@@ -26,6 +26,7 @@
26 #include "merge-recursive.h"
27 #include "resolve-undo.h"
28 #include "remote.h"
29 +#include "fmt-merge-msg.h"
30
31 #define DEFAULT_TWOHEAD (1<<0)
32 #define DEFAULT_OCTOPUS (1<<1)
@@ -44,7 +45,7 @@ static const char * const builtin_merge_usage[] = {
45 NULL
46 };
47
47 -static int show_diffstat = 1, shortlog_len, squash;
48 +static int show_diffstat = 1, shortlog_len = -1, squash;
49 static int option_commit = 1, allow_fast_forward = 1;
50 static int fast_forward_only;
51 static int allow_trivial = 1, have_message;
@@ -525,6 +526,8 @@ static void parse_branch_merge_options(char *bmo)
526
527 static int git_merge_config(const char *k, const char *v, void *cb)
528 {
529 + int status;
530 +
531 if (branch && !prefixcmp(k, "branch.") &&
532 !prefixcmp(k + 7, branch) &&
533 !strcmp(k + 7 + strlen(branch), ".mergeoptions")) {
@@ -541,15 +544,7 @@ static int git_merge_config(const char *k, const char *v, void *cb)
544 return git_config_string(&pull_octopus, k, v);
545 else if (!strcmp(k, "merge.renormalize"))
546 option_renormalize = git_config_bool(k, v);
544 - else if (!strcmp(k, "merge.log") || !strcmp(k, "merge.summary")) {
545 - int is_bool;
546 - shortlog_len = git_config_bool_or_int(k, v, &is_bool);
547 - if (!is_bool && shortlog_len < 0)
548 - return error(_("%s: negative length %s"), k, v);
549 - if (is_bool && shortlog_len)
550 - shortlog_len = DEFAULT_MERGE_LOG_LEN;
551 - return 0;
552 - } else if (!strcmp(k, "merge.ff")) {
547 + else if (!strcmp(k, "merge.ff")) {
548 int boolval = git_config_maybe_bool(k, v);
549 if (0 <= boolval) {
550 allow_fast_forward = boolval;
@@ -562,6 +557,9 @@ static int git_merge_config(const char *k, const char *v, void *cb)
557 default_to_upstream = git_config_bool(k, v);
558 return 0;
559 }
560 + status = fmt_merge_msg_config(k, v, cb);
561 + if (status)
562 + return status;
563 return git_diff_ui_config(k, v, cb);
564 }
565
@@ -1035,6 +1033,8 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
1033 parse_branch_merge_options(branch_mergeoptions);
1034 argc = parse_options(argc, argv, prefix, builtin_merge_options,
1035 builtin_merge_usage, 0);
1036 + if (shortlog_len < 0)
1037 + shortlog_len = (merge_log_config > 0) ? merge_log_config : 0;
1038
1039 if (verbosity < 0 && show_progress == -1)
1040 show_progress = 0;
environment.c
+1
@@ -58,6 +58,7 @@ enum object_creation_mode object_creation_mode = OBJECT_CREATION_MODE;
58 char *notes_ref_name;
59 int grafts_replace_parents = 1;
60 int core_apply_sparse_checkout;
61 +int merge_log_config = -1;
62 struct startup_info *startup_info;
63
64 /* Parallel index stat data preload? */
fmt-merge-msg.h new
+7
@@ -0,0 +1,7 @@
1 +#ifndef FMT_MERGE_MSG_H
2 +#define FMT_MERGE_MSG_H
3 +
4 +extern int merge_log_config;
5 +extern int fmt_merge_msg_config(const char *key, const char *value, void *cb);
6 +
7 +#endif /* FMT_MERGE_MSG_H */