aboutsummaryrefslogtreecommitdiff
path: root/ui-log.c
blob: 3c5130a015a1e0c57983cb05abb75124f5100c27 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
/* ui-log.c: functions for log output
 *
 * Copyright (C) 2006 Lars Hjemli
 *
 * Licensed under GNU General Public License v2
 *   (see COPYING for full license text)
 */

#include "cgit.h"
#include "ui-log.h"
#include "html.h"
#include "ui-shared.h"
#include "argv-array.h"

int files, add_lines, rem_lines;

/*
 * The list of available column colors in the commit graph.
 */
static const char *column_colors_html[] = {
	"<span class='column1'>",
	"<span class='column2'>",
	"<span class='column3'>",
	"<span class='column4'>",
	"<span class='column5'>",
	"<span class='column6'>",
	"</span>",
};

#define COLUMN_COLORS_HTML_MAX (ARRAY_SIZE(column_colors_html) - 1)

static void count_lines(char *line, int size)
{
	if (size <= 0)
		return;

	if (line[0] == '+')
		add_lines++;

	else if (line[0] == '-')
		rem_lines++;
}

static void inspect_files(struct diff_filepair *pair)
{
	unsigned long old_size = 0;
	unsigned long new_size = 0;
	int binary = 0;

	files++;
	if (ctx.repo->enable_log_linecount)
		cgit_diff_files(pair->one->sha1, pair->two->sha1, &old_size,
				&new_size, &binary, 0, ctx.qry.ignorews,
				count_lines);
}

void show_commit_decorations(struct commit *commit)
{
	struct name_decoration *deco;
	static char buf[1024];

	buf[sizeof(buf) - 1] = 0;
	deco = lookup_decoration(&name_decoration, &commit->object);
	html("<span class='decoration'>");
	while (deco) {
		if (!prefixcmp(deco->name, "refs/heads/")) {
			strncpy(buf, deco->name + 11, sizeof(buf) - 1);
			cgit_log_link(buf, NULL, "branch-deco", buf, NULL,
				      ctx.qry.vpath, 0, NULL, NULL,
				      ctx.qry.showmsg);
		}
		else if (!prefixcmp(deco->name, "tag: refs/tags/")) {
			strncpy(buf, deco->name + 15, sizeof(buf) - 1);
			cgit_tag_link(buf, NULL, "tag-deco", ctx.qry.head, buf);
		}
		else if (!prefixcmp(deco->name, "refs/tags/")) {
			strncpy(buf, deco->name + 10, sizeof(buf) - 1);
			cgit_tag_link(buf, NULL, "tag-deco", ctx.qry.head, buf);
		}
		else if (!prefixcmp(deco->name, "refs/remotes/")) {
			if (!ctx.repo->enable_remote_branches)
				goto next;
			strncpy(buf, deco->name + 13, sizeof(buf) - 1);
			cgit_log_link(buf, NULL, "remote-deco", NULL,
				      sha1_to_hex(commit->object.sha1),
				      ctx.qry.vpath, 0, NULL, NULL,
				      ctx.qry.showmsg);
		}
		else {
			strncpy(buf, deco->name, sizeof(buf) - 1);
			cgit_commit_link(buf, NULL, "deco", ctx.qry.head,
					 sha1_to_hex(commit->object.sha1),
					 ctx.qry.vpath, 0);
		}
next:
		deco = deco->next;
	}
	html("</span>");
}

static void print_commit(struct commit *commit, struct rev_info *revs)
{
	struct commitinfo *info;
	int columns = revs->graph ? 4 : 3;
	struct strbuf graphbuf = STRBUF_INIT;
	struct strbuf msgbuf = STRBUF_INIT;

	if (ctx.repo->enable_log_filecount)
		columns++;
	if (ctx.repo->enable_log_linecount)
		columns++;

	if (revs->graph) {
		/* Advance graph until current commit */
		while (!graph_next_line(revs->graph, &graphbuf)) {
			/* Print graph segment in otherwise empty table row */
			html("<tr class='nohover'><td class='commitgraph'>");
			html(graphbuf.buf);
			htmlf("</td><td colspan='%d' /></tr>\n", columns);
			strbuf_setlen(&graphbuf, 0);
		}
		/* Current commit's graph segment is now ready in graphbuf */
	}

	info = cgit_parse_commit(commit);
	htmlf("<tr%s>", ctx.qry.showmsg ? " class='logheader'" : "");

	if (revs->graph) {
		/* Print graph segment for current commit */
		html("<td class='commitgraph'>");
		html(graphbuf.buf);
		html("</td>");
		strbuf_setlen(&graphbuf, 0);
	}
	else {
		html("<td>");
		cgit_print_age(commit->date, TM_WEEK * 2, FMT_SHORTDATE);
		html("</td>");
	}

	htmlf("<td%s>", ctx.qry.showmsg ? " class='logsubject'" : "");
	if (ctx.qry.showmsg) {
		/* line-wrap long commit subjects instead of truncating them */
		size_t subject_len = strlen(info->subject);

		if (subject_len > ctx.cfg.max_msg_len &&
		    ctx.cfg.max_msg_len >= 15) {
			/* symbol for signaling line-wrap (in PAGE_ENCODING) */
			const char wrap_symbol[] = { ' ', 0xE2, 0x86, 0xB5, 0 };
			int i = ctx.cfg.max_msg_len - strlen(wrap_symbol);

			/* Rewind i to preceding space character */
			while (i > 0 && !isspace(info->subject[i]))
				--i;
			if (!i) /* Oops, zero spaces. Reset i */
				i = ctx.cfg.max_msg_len - strlen(wrap_symbol);

			/* add remainder starting at i to msgbuf */
			strbuf_add(&msgbuf, info->subject + i, subject_len - i);
			strbuf_trim(&msgbuf);
			strbuf_add(&msgbuf, "\n\n", 2);

			/* Place wrap_symbol at position i in info->subject */
			strcpy(info->subject + i, wrap_symbol);
		}
	}
	cgit_commit_link(info->subject, NULL, NULL, ctx.qry.head,
			 sha1_to_hex(commit->object.sha1), ctx.qry.vpath, 0);
	show_commit_decorations(commit);
	html("</td><td>");
	html_txt(info->author);

	if (revs->graph) {
		html("</td><td>");
		cgit_print_age(commit->date, TM_WEEK * 2, FMT_SHORTDATE);
	}

	if (ctx.repo->enable_log_filecount || ctx.repo->enable_log_linecount) {
		files = 0;
		add_lines = 0;
		rem_lines = 0;
		cgit_diff_commit(commit, inspect_files, ctx.qry.vpath);
	}

	if (ctx.repo->enable_log_filecount)
		htmlf("</td><td>%d", files);
	if (ctx.repo->enable_log_linecount)
		htmlf("</td><td>-%d/+%d", rem_lines, add_lines);

	html("</td></tr>\n");

	if (revs->graph || ctx.qry.showmsg) { /* Print a second table row */
		html("<tr class='nohover'>");

		if (ctx.qry.showmsg) {
			/* Concatenate commit message + notes in msgbuf */
			if (info->msg && *(info->msg)) {
				strbuf_addstr(&msgbuf, info->msg);
				strbuf_addch(&msgbuf, '\n');
			}
			format_display_notes(commit->object.sha1,
					     &msgbuf, PAGE_ENCODING, 0);
			strbuf_addch(&msgbuf, '\n');
			strbuf_ltrim(&msgbuf);
		}

		if (revs->graph) {
			int lines = 0;

			/* Calculate graph padding */
			if (ctx.qry.showmsg) {
				/* Count #lines in commit message + notes */
				const char *p = msgbuf.buf;
				lines = 1;
				while ((p = strchr(p, '\n'))) {
					p++;
					lines++;
				}
			}

			/* Print graph padding */
			html("<td class='commitgraph'>");
			while (lines > 0 || !graph_is_commit_finished(revs->graph)) {
				if (graphbuf.len)
					html("\n");
				strbuf_setlen(&graphbuf, 0);
				graph_next_line(revs->graph, &graphbuf);
				html(graphbuf.buf);
				lines--;
			}
			html("</td>\n");
		}
		else
			html("<td/>"); /* Empty 'Age' column */

		/* Print msgbuf into remainder of table row */
		htmlf("<td colspan='%d'%s>\n", columns - (revs->graph ? 1 : 0),
			ctx.qry.showmsg ? " class='logmsg'" : "");
		html_txt(msgbuf.buf);
		html("</td></tr>\n");
	}

	strbuf_release(&msgbuf);
	strbuf_release(&graphbuf);
	cgit_free_commitinfo(info);
}

static const char *disambiguate_ref(const char *ref, int *must_free_result)
{
	unsigned char sha1[20];
	struct strbuf longref = STRBUF_INIT;

	strbuf_addf(&longref, "refs/heads/%s", ref);
	if (get_sha1(longref.buf, sha1) == 0) {
		*must_free_result = 1;
		return strbuf_detach(&longref, NULL);
	}

	*must_free_result = 0;
	strbuf_release(&longref);
	return ref;
}

static char *next_token(char **src)
{
	char *result;

	if (!src || !*src)
		return NULL;
	while (isspace(**src))
		(*src)++;
	if (!**src)
		return NULL;
	result = *src;
	while (**src) {
		if (isspace(**src)) {
			**src = '\0';
			(*src)++;
			break;
		}
		(*src)++;
	}
	return result;
}

void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *pattern,
		    char *path, int pager, int commit_graph, int commit_sort)
{
	struct rev_info rev;
	struct commit *commit;
	struct argv_array rev_argv = ARGV_ARRAY_INIT;
	int i, columns = commit_graph ? 4 : 3;
	int must_free_tip = 0;
	struct strbuf argbuf = STRBUF_INIT;

	/* rev_argv.argv[0] will be ignored by setup_revisions */
	argv_array_push(&rev_argv, "log_rev_setup");

	if (!tip)
		tip = ctx.qry.head;
	tip = disambiguate_ref(tip, &must_free_tip);
	argv_array_push(&rev_argv, tip);

	if (grep && pattern && *pattern) {
		pattern = xstrdup(pattern);
		if (!strcmp(grep, "grep") || !strcmp(grep, "author") ||
		    !strcmp(grep, "committer")) {
			strbuf_addf(&argbuf, "--%s=%s", grep, pattern);
			argv_array_push(&rev_argv, argbuf.buf);
		}
		if (!strcmp(grep, "range")) {
			char *arg;
			/* Split the pattern at whitespace and add each token
			 * as a revision expression. Do not accept other
			 * rev-list options. Also, replace the previously
			 * pushed tip (it's no longer relevant).
			 */
			argv_array_pop(&rev_argv);
			while ((arg = next_token(&pattern))) {
				if (*arg == '-') {
					fprintf(stderr, "Bad range expr: %s\n",
						arg);
					break;
				}
				argv_array_push(&rev_argv, arg);
			}
		}
	}
	if (commit_graph) {
		static const char *graph_arg = "--graph";
		static const char *color_arg = "--color";
		argv_array_push(&rev_argv, graph_arg);
		argv_array_push(&rev_argv, color_arg);
		graph_set_column_colors(column_colors_html,
					COLUMN_COLORS_HTML_MAX);
	}

	if (commit_sort == 1) {
		static const char *date_order_arg = "--date-order";
		argv_array_push(&rev_argv, date_order_arg);
	} else if (commit_sort == 2) {
		static const char *topo_order_arg = "--topo-order";
		argv_array_push(&rev_argv, topo_order_arg);
	}

	if (path) {
		static const char *double_dash_arg = "--";
		argv_array_push(&rev_argv, double_dash_arg);
		argv_array_push(&rev_argv, path);
	}

	init_revisions(&rev, NULL);
	rev.abbrev = DEFAULT_ABBREV;
	rev.commit_format = CMIT_FMT_DEFAULT;
	rev.verbose_header = 1;
	rev.show_root_diff = 0;
	setup_revisions(rev_argv.argc, rev_argv.argv, &rev, NULL);
	load_ref_decorations(DECORATE_FULL_REFS);
	rev.show_decorations = 1;
	rev.grep_filter.regflags |= REG_ICASE;
	compile_grep_patterns(&rev.grep_filter);
	prepare_revision_walk(&rev);

	if (pager)
		html("<table class='list nowrap'>");

	html("<tr class='nohover'>");
	if (commit_graph)
		html("<th></th>");
	else
		html("<th class='left'>Age</th>");
	html("<th class='left'>Commit message");
	if (pager) {
		html(" (");
		cgit_log_link(ctx.qry.showmsg ? "Collapse" : "Expand", NULL,
			      NULL, ctx.qry.head, ctx.qry.sha1,
			      ctx.qry.vpath, ctx.qry.ofs, ctx.qry.grep,
			      ctx.qry.search, ctx.qry.showmsg ? 0 : 1);
		html(")");
	}
	html("</th><th class='left'>Author</th>");
	if (commit_graph)
		html("<th class='left'>Age</th>");
	if (ctx.repo->enable_log_filecount) {
		html("<th class='left'>Files</th>");
		columns++;
	}
	if (ctx.repo->enable_log_linecount) {
		html("<th class='left'>Lines</th>");
		columns++;
	}
	html("</tr>\n");

	if (ofs<0)
		ofs = 0;

	for (i = 0; i < ofs && (commit = get_revision(&rev)) != NULL; i++) {
		free(commit->buffer);
		commit->buffer = NULL;
		free_commit_list(commit->parents);
		commit->parents = NULL;
	}

	for (i = 0; i < cnt && (commit = get_revision(&rev)) != NULL; i++) {
		print_commit(commit, &rev);
		free(commit->buffer);
		commit->buffer = NULL;
		free_commit_list(commit->parents);
		commit->parents = NULL;
	}
	if (pager) {
		html("</table><ul class='pager'>");
		if (ofs > 0) {
			html("<li>");
			cgit_log_link("[prev]", NULL, NULL, ctx.qry.head,
				      ctx.qry.sha1, ctx.qry.vpath,
				      ofs - cnt, ctx.qry.grep,
				      ctx.qry.search, ctx.qry.showmsg);
			html("</li>");
		}
		if ((commit = get_revision(&rev)) != NULL) {
			html("<li>");
			cgit_log_link("[next]", NULL, NULL, ctx.qry.head,
				      ctx.qry.sha1, ctx.qry.vpath,
				      ofs + cnt, ctx.qry.grep,
				      ctx.qry.search, ctx.qry.showmsg);
			html("</li>");
		}
		html("</ul>");
	} else if ((commit = get_revision(&rev)) != NULL) {
		htmlf("<tr class='nohover'><td colspan='%d'>", columns);
		cgit_log_link("[...]", NULL, NULL, ctx.qry.head, NULL,
			      ctx.qry.vpath, 0, NULL, NULL, ctx.qry.showmsg);
		html("</td></tr>\n");
	}

	/* If we allocated tip then it is safe to cast away const. */
	if (must_free_tip)
		free((char*) tip);
	strbuf_release(&argbuf);
}