f4d974a7b8bfa0472a110273edf62b34b90902fe
1/*
2 * Builtin "git log" and related commands (show, whatchanged)
3 *
4 * (C) Copyright 2006 Linus Torvalds
5 * 2006 Junio Hamano
6 */
7#include "cache.h"
8#include "commit.h"
9#include "diff.h"
10#include "revision.h"
11#include "log-tree.h"
12#include "builtin.h"
13/* this is in builtin-diff.c */
15void add_head(struct rev_info *revs);
16static int cmd_log_wc(int argc, const char **argv, char **envp,
18 struct rev_info *rev)
19{
20 struct commit *commit;
21 rev->abbrev = DEFAULT_ABBREV;
23 rev->commit_format = CMIT_FMT_DEFAULT;
24 rev->verbose_header = 1;
25 argc = setup_revisions(argc, argv, rev, "HEAD");
26 if (rev->always_show_header) {
27 if (rev->diffopt.pickaxe || rev->diffopt.filter) {
28 rev->always_show_header = 0;
29 if (rev->diffopt.output_format == DIFF_FORMAT_RAW)
30 rev->diffopt.output_format = DIFF_FORMAT_NO_OUTPUT;
31 }
32 }
33 if (argc > 1)
35 die("unrecognized argument: %s", argv[1]);
36 prepare_revision_walk(rev);
38 setup_pager();
39 while ((commit = get_revision(rev)) != NULL) {
40 log_tree_commit(rev, commit);
41 free(commit->buffer);
42 commit->buffer = NULL;
43 }
44 return 0;
45}
46int cmd_whatchanged(int argc, const char **argv, char **envp)
48{
49 struct rev_info rev;
50 init_revisions(&rev);
52 rev.diff = 1;
53 rev.diffopt.recursive = 1;
54 rev.simplify_history = 0;
55 return cmd_log_wc(argc, argv, envp, &rev);
56}
57int cmd_show(int argc, const char **argv, char **envp)
59{
60 struct rev_info rev;
61 init_revisions(&rev);
63 rev.diff = 1;
64 rev.diffopt.recursive = 1;
65 rev.combine_merges = 1;
66 rev.dense_combined_merges = 1;
67 rev.always_show_header = 1;
68 rev.ignore_merges = 0;
69 rev.no_walk = 1;
70 return cmd_log_wc(argc, argv, envp, &rev);
71}
72int cmd_log(int argc, const char **argv, char **envp)
74{
75 struct rev_info rev;
76 init_revisions(&rev);
78 rev.always_show_header = 1;
79 rev.diffopt.recursive = 1;
80 return cmd_log_wc(argc, argv, envp, &rev);
81}
82static int istitlechar(char c)
84{
85 return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') ||
86 (c >= '0' && c <= '9') || c == '.' || c == '_';
87}
88static char *extra_headers = NULL;
90static int extra_headers_size = 0;
91static int git_format_config(const char *var, const char *value)
93{
94 if (!strcmp(var, "format.headers")) {
95 int len = strlen(value);
96 extra_headers_size += len + 1;
97 extra_headers = realloc(extra_headers, extra_headers_size);
98 extra_headers[extra_headers_size - len - 1] = 0;
99 strcat(extra_headers, value);
100 return 0;
101 }
102 return git_default_config(var, value);
103}
104static FILE *realstdout = NULL;
107static const char *output_directory = NULL;
108static void reopen_stdout(struct commit *commit, int nr, int keep_subject)
110{
111 char filename[1024];
112 char *sol;
113 int len = 0;
114 if (output_directory) {
116 safe_strncpy(filename, output_directory, 1010);
117 len = strlen(filename);
118 if (filename[len - 1] != '/')
119 filename[len++] = '/';
120 }
121 sprintf(filename + len, "%04d", nr);
123 len = strlen(filename);
124 sol = strstr(commit->buffer, "\n\n");
126 if (sol) {
127 int j, space = 1;
128 sol += 2;
130 /* strip [PATCH] or [PATCH blabla] */
131 if (!keep_subject && !strncmp(sol, "[PATCH", 6)) {
132 char *eos = strchr(sol + 6, ']');
133 if (eos) {
134 while (isspace(*eos))
135 eos++;
136 sol = eos;
137 }
138 }
139 for (j = 0; len < 1024 - 6 && sol[j] && sol[j] != '\n'; j++) {
141 if (istitlechar(sol[j])) {
142 if (space) {
143 filename[len++] = '-';
144 space = 0;
145 }
146 filename[len++] = sol[j];
147 if (sol[j] == '.')
148 while (sol[j + 1] == '.')
149 j++;
150 } else
151 space = 1;
152 }
153 while (filename[len - 1] == '.' || filename[len - 1] == '-')
154 len--;
155 }
156 strcpy(filename + len, ".txt");
157 fprintf(realstdout, "%s\n", filename);
158 freopen(filename, "w", stdout);
159}
160int cmd_format_patch(int argc, const char **argv, char **envp)
162{
163 struct commit *commit;
164 struct commit **list = NULL;
165 struct rev_info rev;
166 int nr = 0, total, i, j;
167 int use_stdout = 0;
168 int numbered = 0;
169 int start_number = -1;
170 int keep_subject = 0;
171 char *add_signoff = NULL;
172 init_revisions(&rev);
174 rev.commit_format = CMIT_FMT_EMAIL;
175 rev.verbose_header = 1;
176 rev.diff = 1;
177 rev.diffopt.with_raw = 0;
178 rev.diffopt.with_stat = 1;
179 rev.combine_merges = 0;
180 rev.ignore_merges = 1;
181 rev.diffopt.output_format = DIFF_FORMAT_PATCH;
182 git_config(git_format_config);
184 rev.extra_headers = extra_headers;
185 /*
187 * Parse the arguments before setup_revisions(), or something
188 * like "git fmt-patch -o a123 HEAD^.." may fail; a123 is
189 * possibly a valid SHA1.
190 */
191 for (i = 1, j = 1; i < argc; i++) {
192 if (!strcmp(argv[i], "--stdout"))
193 use_stdout = 1;
194 else if (!strcmp(argv[i], "-n") ||
195 !strcmp(argv[i], "--numbered"))
196 numbered = 1;
197 else if (!strncmp(argv[i], "--start-number=", 15))
198 start_number = strtol(argv[i] + 15, NULL, 10);
199 else if (!strcmp(argv[i], "--start-number")) {
200 i++;
201 if (i == argc)
202 die("Need a number for --start-number");
203 start_number = strtol(argv[i], NULL, 10);
204 }
205 else if (!strcmp(argv[i], "-k") ||
206 !strcmp(argv[i], "--keep-subject")) {
207 keep_subject = 1;
208 rev.total = -1;
209 }
210 else if (!strcmp(argv[i], "--output-directory") ||
211 !strcmp(argv[i], "-o")) {
212 i++;
213 if (argc <= i)
214 die("Which directory?");
215 if (output_directory)
216 die("Two output directories?");
217 output_directory = argv[i];
218 }
219 else if (!strcmp(argv[i], "--signoff") ||
220 !strcmp(argv[i], "-s")) {
221 const char *committer = git_committer_info(1);
222 const char *endpos = strchr(committer, '>');
223 if (!endpos)
224 die("bogos committer info %s\n", committer);
225 add_signoff = xmalloc(endpos - committer + 2);
226 memcpy(add_signoff, committer, endpos - committer + 1);
227 add_signoff[endpos - committer + 1] = 0;
228 }
229 else if (!strcmp(argv[i], "--attach"))
230 rev.mime_boundary = git_version_string;
231 else if (!strncmp(argv[i], "--attach=", 9))
232 rev.mime_boundary = argv[i] + 9;
233 else
234 argv[j++] = argv[i];
235 }
236 argc = j;
237 if (start_number < 0)
239 start_number = 1;
240 if (numbered && keep_subject)
241 die ("-n and -k are mutually exclusive.");
242 argc = setup_revisions(argc, argv, &rev, "HEAD");
244 if (argc > 1)
245 die ("unrecognized argument: %s", argv[1]);
246 if (output_directory) {
248 if (use_stdout)
249 die("standard output, or directory, which one?");
250 if (mkdir(output_directory, 0777) < 0 && errno != EEXIST)
251 die("Could not create directory %s",
252 output_directory);
253 }
254 if (rev.pending_objects && rev.pending_objects->next == NULL) {
256 rev.pending_objects->item->flags |= UNINTERESTING;
257 add_head(&rev);
258 }
259 if (!use_stdout)
261 realstdout = fdopen(dup(1), "w");
262 prepare_revision_walk(&rev);
264 while ((commit = get_revision(&rev)) != NULL) {
265 /* ignore merges */
266 if (commit->parents && commit->parents->next)
267 continue;
268 nr++;
269 list = realloc(list, nr * sizeof(list[0]));
270 list[nr - 1] = commit;
271 }
272 total = nr;
273 if (numbered)
274 rev.total = total + start_number - 1;
275 rev.add_signoff = add_signoff;
276 while (0 <= --nr) {
277 int shown;
278 commit = list[nr];
279 rev.nr = total - nr + (start_number - 1);
280 if (!use_stdout)
281 reopen_stdout(commit, rev.nr, keep_subject);
282 shown = log_tree_commit(&rev, commit);
283 free(commit->buffer);
284 commit->buffer = NULL;
285 /* We put one extra blank line between formatted
287 * patches and this flag is used by log-tree code
288 * to see if it needs to emit a LF before showing
289 * the log; when using one file per patch, we do
290 * not want the extra blank line.
291 */
292 if (!use_stdout)
293 rev.shown_one = 0;
294 if (shown) {
295 if (rev.mime_boundary)
296 printf("\n--%s%s--\n\n\n",
297 mime_boundary_leader,
298 rev.mime_boundary);
299 else
300 printf("-- \n%s\n\n", git_version_string);
301 }
302 if (!use_stdout)
303 fclose(stdout);
304 }
305 free(list);
306 return 0;
307}
308