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