ui-stats.c (view raw)
1#include "cgit.h"
2#include "html.h"
3#include "ui-shared.h"
4#include "ui-stats.h"
5
6#ifdef NO_C99_FORMAT
7#define SZ_FMT "%u"
8#else
9#define SZ_FMT "%zu"
10#endif
11
12#define MONTHS 6
13
14struct authorstat {
15 long total;
16 struct string_list list;
17};
18
19#define DAY_SECS (60 * 60 * 24)
20#define WEEK_SECS (DAY_SECS * 7)
21
22static void trunc_week(struct tm *tm)
23{
24 time_t t = timegm(tm);
25 t -= ((tm->tm_wday + 6) % 7) * DAY_SECS;
26 gmtime_r(&t, tm);
27}
28
29static void dec_week(struct tm *tm)
30{
31 time_t t = timegm(tm);
32 t -= WEEK_SECS;
33 gmtime_r(&t, tm);
34}
35
36static void inc_week(struct tm *tm)
37{
38 time_t t = timegm(tm);
39 t += WEEK_SECS;
40 gmtime_r(&t, tm);
41}
42
43static char *pretty_week(struct tm *tm)
44{
45 static char buf[10];
46
47 strftime(buf, sizeof(buf), "W%V %G", tm);
48 return buf;
49}
50
51static void trunc_month(struct tm *tm)
52{
53 tm->tm_mday = 1;
54}
55
56static void dec_month(struct tm *tm)
57{
58 tm->tm_mon--;
59 if (tm->tm_mon < 0) {
60 tm->tm_year--;
61 tm->tm_mon = 11;
62 }
63}
64
65static void inc_month(struct tm *tm)
66{
67 tm->tm_mon++;
68 if (tm->tm_mon > 11) {
69 tm->tm_year++;
70 tm->tm_mon = 0;
71 }
72}
73
74static char *pretty_month(struct tm *tm)
75{
76 static const char *months[] = {
77 "Jan", "Feb", "Mar", "Apr", "May", "Jun",
78 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
79 };
80 return fmt("%s %d", months[tm->tm_mon], tm->tm_year + 1900);
81}
82
83static void trunc_quarter(struct tm *tm)
84{
85 trunc_month(tm);
86 while(tm->tm_mon % 3 != 0)
87 dec_month(tm);
88}
89
90static void dec_quarter(struct tm *tm)
91{
92 dec_month(tm);
93 dec_month(tm);
94 dec_month(tm);
95}
96
97static void inc_quarter(struct tm *tm)
98{
99 inc_month(tm);
100 inc_month(tm);
101 inc_month(tm);
102}
103
104static char *pretty_quarter(struct tm *tm)
105{
106 return fmt("Q%d %d", tm->tm_mon / 3 + 1, tm->tm_year + 1900);
107}
108
109static void trunc_year(struct tm *tm)
110{
111 trunc_month(tm);
112 tm->tm_mon = 0;
113}
114
115static void dec_year(struct tm *tm)
116{
117 tm->tm_year--;
118}
119
120static void inc_year(struct tm *tm)
121{
122 tm->tm_year++;
123}
124
125static char *pretty_year(struct tm *tm)
126{
127 return fmt("%d", tm->tm_year + 1900);
128}
129
130struct cgit_period periods[] = {
131 {'w', "week", 12, 4, trunc_week, dec_week, inc_week, pretty_week},
132 {'m', "month", 12, 4, trunc_month, dec_month, inc_month, pretty_month},
133 {'q', "quarter", 12, 4, trunc_quarter, dec_quarter, inc_quarter, pretty_quarter},
134 {'y', "year", 12, 4, trunc_year, dec_year, inc_year, pretty_year},
135};
136
137/* Given a period code or name, return a period index (1, 2, 3 or 4)
138 * and update the period pointer to the correcsponding struct.
139 * If no matching code is found, return 0.
140 */
141int cgit_find_stats_period(const char *expr, struct cgit_period **period)
142{
143 int i;
144 char code = '\0';
145
146 if (!expr)
147 return 0;
148
149 if (strlen(expr) == 1)
150 code = expr[0];
151
152 for (i = 0; i < sizeof(periods) / sizeof(periods[0]); i++)
153 if (periods[i].code == code || !strcmp(periods[i].name, expr)) {
154 if (period)
155 *period = &periods[i];
156 return i+1;
157 }
158 return 0;
159}
160
161const char *cgit_find_stats_periodname(int idx)
162{
163 if (idx > 0 && idx < 4)
164 return periods[idx - 1].name;
165 else
166 return "";
167}
168
169static void add_commit(struct string_list *authors, struct commit *commit,
170 struct cgit_period *period)
171{
172 struct commitinfo *info;
173 struct string_list_item *author, *item;
174 struct authorstat *authorstat;
175 struct string_list *items;
176 char *tmp;
177 struct tm *date;
178 time_t t;
179
180 info = cgit_parse_commit(commit);
181 tmp = xstrdup(info->author);
182 author = string_list_insert(authors, tmp);
183 if (!author->util)
184 author->util = xcalloc(1, sizeof(struct authorstat));
185 else
186 free(tmp);
187 authorstat = author->util;
188 items = &authorstat->list;
189 t = info->committer_date;
190 date = gmtime(&t);
191 period->trunc(date);
192 tmp = xstrdup(period->pretty(date));
193 item = string_list_insert(items, tmp);
194 if (item->util)
195 free(tmp);
196 item->util++;
197 authorstat->total++;
198 cgit_free_commitinfo(info);
199}
200
201static int cmp_total_commits(const void *a1, const void *a2)
202{
203 const struct string_list_item *i1 = a1;
204 const struct string_list_item *i2 = a2;
205 const struct authorstat *auth1 = i1->util;
206 const struct authorstat *auth2 = i2->util;
207
208 return auth2->total - auth1->total;
209}
210
211/* Walk the commit DAG and collect number of commits per author per
212 * timeperiod into a nested string_list collection.
213 */
214struct string_list collect_stats(struct cgit_context *ctx,
215 struct cgit_period *period)
216{
217 struct string_list authors;
218 struct rev_info rev;
219 struct commit *commit;
220 const char *argv[] = {NULL, ctx->qry.head, NULL, NULL, NULL, NULL};
221 int argc = 3;
222 time_t now;
223 long i;
224 struct tm *tm;
225 char tmp[11];
226
227 time(&now);
228 tm = gmtime(&now);
229 period->trunc(tm);
230 for (i = 1; i < period->count; i++)
231 period->dec(tm);
232 strftime(tmp, sizeof(tmp), "%Y-%m-%d", tm);
233 argv[2] = xstrdup(fmt("--since=%s", tmp));
234 if (ctx->qry.path) {
235 argv[3] = "--";
236 argv[4] = ctx->qry.path;
237 argc += 2;
238 }
239 init_revisions(&rev, NULL);
240 rev.abbrev = DEFAULT_ABBREV;
241 rev.commit_format = CMIT_FMT_DEFAULT;
242 rev.no_merges = 1;
243 rev.verbose_header = 1;
244 rev.show_root_diff = 0;
245 setup_revisions(argc, argv, &rev, NULL);
246 prepare_revision_walk(&rev);
247 memset(&authors, 0, sizeof(authors));
248 while ((commit = get_revision(&rev)) != NULL) {
249 add_commit(&authors, commit, period);
250 free(commit->buffer);
251 free_commit_list(commit->parents);
252 }
253 return authors;
254}
255
256void print_combined_authorrow(struct string_list *authors, int from, int to,
257 const char *name, const char *leftclass, const char *centerclass,
258 const char *rightclass, struct cgit_period *period)
259{
260 struct string_list_item *author;
261 struct authorstat *authorstat;
262 struct string_list *items;
263 struct string_list_item *date;
264 time_t now;
265 long i, j, total, subtotal;
266 struct tm *tm;
267 char *tmp;
268
269 time(&now);
270 tm = gmtime(&now);
271 period->trunc(tm);
272 for (i = 1; i < period->count; i++)
273 period->dec(tm);
274
275 total = 0;
276 htmlf("<tr><td class='%s'>%s</td>", leftclass,
277 fmt(name, to - from + 1));
278 for (j = 0; j < period->count; j++) {
279 tmp = period->pretty(tm);
280 period->inc(tm);
281 subtotal = 0;
282 for (i = from; i <= to; i++) {
283 author = &authors->items[i];
284 authorstat = author->util;
285 items = &authorstat->list;
286 date = string_list_lookup(items, tmp);
287 if (date)
288 subtotal += (size_t)date->util;
289 }
290 htmlf("<td class='%s'>%ld</td>", centerclass, subtotal);
291 total += subtotal;
292 }
293 htmlf("<td class='%s'>%ld</td></tr>", rightclass, total);
294}
295
296void print_authors(struct string_list *authors, int top,
297 struct cgit_period *period)
298{
299 struct string_list_item *author;
300 struct authorstat *authorstat;
301 struct string_list *items;
302 struct string_list_item *date;
303 time_t now;
304 long i, j, total;
305 struct tm *tm;
306 char *tmp;
307
308 time(&now);
309 tm = gmtime(&now);
310 period->trunc(tm);
311 for (i = 1; i < period->count; i++)
312 period->dec(tm);
313
314 html("<table class='stats'><tr><th>Author</th>");
315 for (j = 0; j < period->count; j++) {
316 tmp = period->pretty(tm);
317 htmlf("<th>%s</th>", tmp);
318 period->inc(tm);
319 }
320 html("<th>Total</th></tr>\n");
321
322 if (top <= 0 || top > authors->nr)
323 top = authors->nr;
324
325 for (i = 0; i < top; i++) {
326 author = &authors->items[i];
327 html("<tr><td class='left'>");
328 html_txt(author->string);
329 html("</td>");
330 authorstat = author->util;
331 items = &authorstat->list;
332 total = 0;
333 for (j = 0; j < period->count; j++)
334 period->dec(tm);
335 for (j = 0; j < period->count; j++) {
336 tmp = period->pretty(tm);
337 period->inc(tm);
338 date = string_list_lookup(items, tmp);
339 if (!date)
340 html("<td>0</td>");
341 else {
342 htmlf("<td>"SZ_FMT"</td>", (size_t)date->util);
343 total += (size_t)date->util;
344 }
345 }
346 htmlf("<td class='sum'>%ld</td></tr>", total);
347 }
348
349 if (top < authors->nr)
350 print_combined_authorrow(authors, top, authors->nr - 1,
351 "Others (%ld)", "left", "", "sum", period);
352
353 print_combined_authorrow(authors, 0, authors->nr - 1, "Total",
354 "total", "sum", "sum", period);
355 html("</table>");
356}
357
358/* Create a sorted string_list with one entry per author. The util-field
359 * for each author is another string_list which is used to calculate the
360 * number of commits per time-interval.
361 */
362void cgit_show_stats(struct cgit_context *ctx)
363{
364 struct string_list authors;
365 struct cgit_period *period;
366 int top, i;
367 const char *code = "w";
368
369 if (ctx->qry.period)
370 code = ctx->qry.period;
371
372 i = cgit_find_stats_period(code, &period);
373 if (!i) {
374 cgit_print_error(fmt("Unknown statistics type: %c", code[0]));
375 return;
376 }
377 if (i > ctx->repo->max_stats) {
378 cgit_print_error(fmt("Statistics type disabled: %s",
379 period->name));
380 return;
381 }
382 authors = collect_stats(ctx, period);
383 qsort(authors.items, authors.nr, sizeof(struct string_list_item),
384 cmp_total_commits);
385
386 top = ctx->qry.ofs;
387 if (!top)
388 top = 10;
389
390 html("<div class='cgit-panel'>");
391 html("<b>stat options</b>");
392 html("<form method='get' action=''>");
393 cgit_add_hidden_formfields(1, 0, "stats");
394 html("<table><tr><td colspan='2'/></tr>");
395 if (ctx->repo->max_stats > 1) {
396 html("<tr><td class='label'>Period:</td>");
397 html("<td class='ctrl'><select name='period' onchange='this.form.submit();'>");
398 for (i = 0; i < ctx->repo->max_stats; i++)
399 html_option(fmt("%c", periods[i].code),
400 periods[i].name, fmt("%c", period->code));
401 html("</select></td></tr>");
402 }
403 html("<tr><td class='label'>Authors:</td>");
404 html("<td class='ctrl'><select name='ofs' onchange='this.form.submit();'>");
405 html_intoption(10, "10", top);
406 html_intoption(25, "25", top);
407 html_intoption(50, "50", top);
408 html_intoption(100, "100", top);
409 html_intoption(-1, "all", top);
410 html("</select></td></tr>");
411 html("<tr><td/><td class='ctrl'>");
412 html("<noscript><input type='submit' value='Reload'/></noscript>");
413 html("</td></tr></table>");
414 html("</form>");
415 html("</div>");
416 htmlf("<h2>Commits per author per %s", period->name);
417 if (ctx->qry.path) {
418 html(" (path '");
419 html_txt(ctx->qry.path);
420 html("')");
421 }
422 html("</h2>");
423 print_authors(&authors, top, period);
424}
425