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