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
157const char *cgit_find_stats_periodname(int idx)
158{
159 if (idx > 0 && idx < 4)
160 return periods[idx - 1].name;
161 else
162 return "";
163}
164
165static void add_commit(struct string_list *authors, struct commit *commit,
166 struct cgit_period *period)
167{
168 struct commitinfo *info;
169 struct string_list_item *author, *item;
170 struct authorstat *authorstat;
171 struct string_list *items;
172 char *tmp;
173 struct tm *date;
174 time_t t;
175
176 info = cgit_parse_commit(commit);
177 tmp = xstrdup(info->author);
178 author = string_list_insert(tmp, authors);
179 if (!author->util)
180 author->util = xcalloc(1, sizeof(struct authorstat));
181 else
182 free(tmp);
183 authorstat = author->util;
184 items = &authorstat->list;
185 t = info->committer_date;
186 date = gmtime(&t);
187 period->trunc(date);
188 tmp = xstrdup(period->pretty(date));
189 item = string_list_insert(tmp, items);
190 if (item->util)
191 free(tmp);
192 item->util++;
193 authorstat->total++;
194 cgit_free_commitinfo(info);
195}
196
197static int cmp_total_commits(const void *a1, const void *a2)
198{
199 const struct string_list_item *i1 = a1;
200 const struct string_list_item *i2 = a2;
201 const struct authorstat *auth1 = i1->util;
202 const struct authorstat *auth2 = i2->util;
203
204 return auth2->total - auth1->total;
205}
206
207/* Walk the commit DAG and collect number of commits per author per
208 * timeperiod into a nested string_list collection.
209 */
210struct string_list collect_stats(struct cgit_context *ctx,
211 struct cgit_period *period)
212{
213 struct string_list authors;
214 struct rev_info rev;
215 struct commit *commit;
216 const char *argv[] = {NULL, ctx->qry.head, NULL, NULL, NULL, NULL};
217 int argc = 3;
218 time_t now;
219 long i;
220 struct tm *tm;
221 char tmp[11];
222
223 time(&now);
224 tm = gmtime(&now);
225 period->trunc(tm);
226 for (i = 1; i < period->count; i++)
227 period->dec(tm);
228 strftime(tmp, sizeof(tmp), "%Y-%m-%d", tm);
229 argv[2] = xstrdup(fmt("--since=%s", tmp));
230 if (ctx->qry.path) {
231 argv[3] = "--";
232 argv[4] = ctx->qry.path;
233 argc += 2;
234 }
235 init_revisions(&rev, NULL);
236 rev.abbrev = DEFAULT_ABBREV;
237 rev.commit_format = CMIT_FMT_DEFAULT;
238 rev.no_merges = 1;
239 rev.verbose_header = 1;
240 rev.show_root_diff = 0;
241 setup_revisions(argc, argv, &rev, NULL);
242 prepare_revision_walk(&rev);
243 memset(&authors, 0, sizeof(authors));
244 while ((commit = get_revision(&rev)) != NULL) {
245 add_commit(&authors, commit, period);
246 free(commit->buffer);
247 free_commit_list(commit->parents);
248 }
249 return authors;
250}
251
252void print_combined_authorrow(struct string_list *authors, int from, int to,
253 const char *name, const char *leftclass, const char *centerclass,
254 const char *rightclass, struct cgit_period *period)
255{
256 struct string_list_item *author;
257 struct authorstat *authorstat;
258 struct string_list *items;
259 struct string_list_item *date;
260 time_t now;
261 long i, j, total, subtotal;
262 struct tm *tm;
263 char *tmp;
264
265 time(&now);
266 tm = gmtime(&now);
267 period->trunc(tm);
268 for (i = 1; i < period->count; i++)
269 period->dec(tm);
270
271 total = 0;
272 htmlf("<tr><td class='%s'>%s</td>", leftclass,
273 fmt(name, to - from + 1));
274 for (j = 0; j < period->count; j++) {
275 tmp = period->pretty(tm);
276 period->inc(tm);
277 subtotal = 0;
278 for (i = from; i <= to; i++) {
279 author = &authors->items[i];
280 authorstat = author->util;
281 items = &authorstat->list;
282 date = string_list_lookup(tmp, items);
283 if (date)
284 subtotal += (size_t)date->util;
285 }
286 htmlf("<td class='%s'>%d</td>", centerclass, subtotal);
287 total += subtotal;
288 }
289 htmlf("<td class='%s'>%d</td></tr>", rightclass, total);
290}
291
292void print_authors(struct string_list *authors, int top,
293 struct cgit_period *period)
294{
295 struct string_list_item *author;
296 struct authorstat *authorstat;
297 struct string_list *items;
298 struct string_list_item *date;
299 time_t now;
300 long i, j, total;
301 struct tm *tm;
302 char *tmp;
303
304 time(&now);
305 tm = gmtime(&now);
306 period->trunc(tm);
307 for (i = 1; i < period->count; i++)
308 period->dec(tm);
309
310 html("<table class='stats'><tr><th>Author</th>");
311 for (j = 0; j < period->count; j++) {
312 tmp = period->pretty(tm);
313 htmlf("<th>%s</th>", tmp);
314 period->inc(tm);
315 }
316 html("<th>Total</th></tr>\n");
317
318 if (top <= 0 || top > authors->nr)
319 top = authors->nr;
320
321 for (i = 0; i < top; i++) {
322 author = &authors->items[i];
323 html("<tr><td class='left'>");
324 html_txt(author->string);
325 html("</td>");
326 authorstat = author->util;
327 items = &authorstat->list;
328 total = 0;
329 for (j = 0; j < period->count; j++)
330 period->dec(tm);
331 for (j = 0; j < period->count; j++) {
332 tmp = period->pretty(tm);
333 period->inc(tm);
334 date = string_list_lookup(tmp, items);
335 if (!date)
336 html("<td>0</td>");
337 else {
338 htmlf("<td>%d</td>", date->util);
339 total += (size_t)date->util;
340 }
341 }
342 htmlf("<td class='sum'>%d</td></tr>", total);
343 }
344
345 if (top < authors->nr)
346 print_combined_authorrow(authors, top, authors->nr - 1,
347 "Others (%d)", "left", "", "sum", period);
348
349 print_combined_authorrow(authors, 0, authors->nr - 1, "Total",
350 "total", "sum", "sum", period);
351 html("</table>");
352}
353
354/* Create a sorted string_list with one entry per author. The util-field
355 * for each author is another string_list which is used to calculate the
356 * number of commits per time-interval.
357 */
358void cgit_show_stats(struct cgit_context *ctx)
359{
360 struct string_list authors;
361 struct cgit_period *period;
362 int top, i;
363 const char *code = "w";
364
365 if (ctx->qry.period)
366 code = ctx->qry.period;
367
368 i = cgit_find_stats_period(code, &period);
369 if (!i) {
370 cgit_print_error(fmt("Unknown statistics type: %c", code));
371 return;
372 }
373 if (i > ctx->repo->max_stats) {
374 cgit_print_error(fmt("Statistics type disabled: %s",
375 period->name));
376 return;
377 }
378 authors = collect_stats(ctx, period);
379 qsort(authors.items, authors.nr, sizeof(struct string_list_item),
380 cmp_total_commits);
381
382 top = ctx->qry.ofs;
383 if (!top)
384 top = 10;
385 htmlf("<h2>Commits per author per %s", period->name);
386 if (ctx->qry.path) {
387 html(" (path '");
388 html_txt(ctx->qry.path);
389 html("')");
390 }
391 html("</h2>");
392
393 html("<form method='get' action='' style='float: right; text-align: right;'>");
394 cgit_add_hidden_formfields(1, 0, "stats");
395 if (ctx->repo->max_stats > 1) {
396 html("Period: ");
397 html("<select name='period' onchange='this.form.submit();'>");
398 for (i = 0; i < ctx->repo->max_stats; i++)
399 htmlf("<option value='%c'%s>%s</option>",
400 periods[i].code,
401 period == &periods[i] ? " selected" : "",
402 periods[i].name);
403 html("</select><br/><br/>");
404 }
405 html("Authors: ");
406 html("");
407 html("<select name='ofs' onchange='this.form.submit();'>");
408 htmlf("<option value='10'%s>10</option>", top == 10 ? " selected" : "");
409 htmlf("<option value='25'%s>25</option>", top == 25 ? " selected" : "");
410 htmlf("<option value='50'%s>50</option>", top == 50 ? " selected" : "");
411 htmlf("<option value='100'%s>100</option>", top == 100 ? " selected" : "");
412 htmlf("<option value='-1'%s>All</option>", top == -1 ? " selected" : "");
413 html("</select>");
414 html("<noscript> <input type='submit' value='Reload'/></noscript>");
415 html("</form>");
416 print_authors(&authors, top, period);
417}
418