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authorGravatar Lars Hjemli <hjemli@gmail.com>2008-12-07 01:38:19 (JST)
committerGravatar Lars Hjemli <hjemli@gmail.com>2008-12-07 01:38:19 (JST)
commitf86a23ff537258d36bf8f1876fa7a4bede6673d8 (patch)
tree8328d415416058cdc5b0fd2c6564ddcab5766c7a /ui-stats.c
parent140012d7a8e51df5a9f9c556696778b86ade4fc9 (diff)
downloadcgit-f86a23ff537258d36bf8f1876fa7a4bede6673d8.zip
cgit-f86a23ff537258d36bf8f1876fa7a4bede6673d8.tar.gz
Add a 'stats' page to each repo
This new page, which is disabled by default, can be used to print some statistics about the number of commits per period in the repository, where period can be either weeks, months, quarters or years. The function can be activated globally by setting 'enable-stats=1' in cgitrc and disabled for individual repos by setting 'repo.enable-stats=0'. Signed-off-by: Lars Hjemli <hjemli@gmail.com>
Diffstat (limited to 'ui-stats.c')
-rw-r--r--ui-stats.c380
1 files changed, 380 insertions, 0 deletions
diff --git a/ui-stats.c b/ui-stats.c
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index 0000000..9150840
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+++ b/ui-stats.c
@@ -0,0 +1,380 @@
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};
199 time_t now;
200 long i;
201 struct tm *tm;
202 char tmp[11];
203
204 time(&now);
205 tm = gmtime(&now);
206 period->trunc(tm);
207 for (i = 1; i < period->count; i++)
208 period->dec(tm);
209 strftime(tmp, sizeof(tmp), "%Y-%m-%d", tm);
210 argv[2] = xstrdup(fmt("--since=%s", tmp));
211 init_revisions(&rev, NULL);
212 rev.abbrev = DEFAULT_ABBREV;
213 rev.commit_format = CMIT_FMT_DEFAULT;
214 rev.no_merges = 1;
215 rev.verbose_header = 1;
216 rev.show_root_diff = 0;
217 setup_revisions(3, argv, &rev, NULL);
218 prepare_revision_walk(&rev);
219 memset(&authors, 0, sizeof(authors));
220 while ((commit = get_revision(&rev)) != NULL) {
221 add_commit(&authors, commit, period);
222 free(commit->buffer);
223 free_commit_list(commit->parents);
224 }
225 return authors;
226}
227
228void print_combined_authorrow(struct string_list *authors, int from, int to,
229 const char *name, const char *leftclass, const char *centerclass,
230 const char *rightclass, struct Period *period)
231{
232 struct string_list_item *author;
233 struct authorstat *authorstat;
234 struct string_list *items;
235 struct string_list_item *date;
236 time_t now;
237 long i, j, total, subtotal;
238 struct tm *tm;
239 char *tmp;
240
241 time(&now);
242 tm = gmtime(&now);
243 period->trunc(tm);
244 for (i = 1; i < period->count; i++)
245 period->dec(tm);
246
247 total = 0;
248 htmlf("<tr><td class='%s'>%s</td>", leftclass,
249 fmt(name, to - from + 1));
250 for (j = 0; j < period->count; j++) {
251 tmp = period->pretty(tm);
252 period->inc(tm);
253 subtotal = 0;
254 for (i = from; i <= to; i++) {
255 author = &authors->items[i];
256 authorstat = author->util;
257 items = &authorstat->list;
258 date = string_list_lookup(tmp, items);
259 if (date)
260 subtotal += (size_t)date->util;
261 }
262 htmlf("<td class='%s'>%d</td>", centerclass, subtotal);
263 total += subtotal;
264 }
265 htmlf("<td class='%s'>%d</td></tr>", rightclass, total);
266}
267
268void print_authors(struct string_list *authors, int top, struct Period *period)
269{
270 struct string_list_item *author;
271 struct authorstat *authorstat;
272 struct string_list *items;
273 struct string_list_item *date;
274 time_t now;
275 long i, j, total;
276 struct tm *tm;
277 char *tmp;
278
279 time(&now);
280 tm = gmtime(&now);
281 period->trunc(tm);
282 for (i = 1; i < period->count; i++)
283 period->dec(tm);
284
285 html("<table class='stats'><tr><th>Author</th>");
286 for (j = 0; j < period->count; j++) {
287 tmp = period->pretty(tm);
288 htmlf("<th>%s</th>", tmp);
289 period->inc(tm);
290 }
291 html("<th>Total</th></tr>\n");
292
293 if (top <= 0 || top > authors->nr)
294 top = authors->nr;
295
296 for (i = 0; i < top; i++) {
297 author = &authors->items[i];
298 html("<tr><td class='left'>");
299 html_txt(author->string);
300 html("</td>");
301 authorstat = author->util;
302 items = &authorstat->list;
303 total = 0;
304 for (j = 0; j < period->count; j++)
305 period->dec(tm);
306 for (j = 0; j < period->count; j++) {
307 tmp = period->pretty(tm);
308 period->inc(tm);
309 date = string_list_lookup(tmp, items);
310 if (!date)
311 html("<td>0</td>");
312 else {
313 htmlf("<td>%d</td>", date->util);
314 total += (size_t)date->util;
315 }
316 }
317 htmlf("<td class='sum'>%d</td></tr>", total);
318 }
319
320 if (top < authors->nr)
321 print_combined_authorrow(authors, top, authors->nr - 1,
322 "Others (%d)", "left", "", "sum", period);
323
324 print_combined_authorrow(authors, 0, authors->nr - 1, "Total",
325 "total", "sum", "sum", period);
326 html("</table>");
327}
328
329/* Create a sorted string_list with one entry per author. The util-field
330 * for each author is another string_list which is used to calculate the
331 * number of commits per time-interval.
332 */
333void cgit_show_stats(struct cgit_context *ctx)
334{
335 struct string_list authors;
336 struct Period *period;
337 int top, i;
338
339 period = &periods[0];
340 if (ctx->qry.period) {
341 for (i = 0; i < sizeof(periods) / sizeof(periods[0]); i++)
342 if (periods[i].code == ctx->qry.period[0]) {
343 period = &periods[i];
344 break;
345 }
346 }
347 authors = collect_stats(ctx, period);
348 qsort(authors.items, authors.nr, sizeof(struct string_list_item),
349 cmp_total_commits);
350
351 top = ctx->qry.ofs;
352 if (!top)
353 top = 10;
354 htmlf("<h2>Commits per author per %s</h2>", period->name);
355
356 html("<form method='get' action='.' style='float: right; text-align: right;'>");
357 if (strcmp(ctx->qry.head, ctx->repo->defbranch))
358 htmlf("<input type='hidden' name='h' value='%s'/>", ctx->qry.head);
359 html("Period: ");
360 html("<select name='period' onchange='this.form.submit();'>");
361 for (i = 0; i < sizeof(periods) / sizeof(periods[0]); i++)
362 htmlf("<option value='%c'%s>%s</option>",
363 periods[i].code,
364 period == &periods[i] ? " selected" : "",
365 periods[i].name);
366 html("</select><br/><br/>");
367 html("Authors: ");
368 html("");
369 html("<select name='ofs' onchange='this.form.submit();'>");
370 htmlf("<option value='10'%s>10</option>", top == 10 ? " selected" : "");
371 htmlf("<option value='25'%s>25</option>", top == 25 ? " selected" : "");
372 htmlf("<option value='50'%s>50</option>", top == 50 ? " selected" : "");
373 htmlf("<option value='100'%s>100</option>", top == 100 ? " selected" : "");
374 htmlf("<option value='-1'%s>All</option>", top == -1 ? " selected" : "");
375 html("</select>");
376 html("<noscript>&nbsp;&nbsp;<input type='submit' value='Reload'/></noscript>");
377 html("</form>");
378 print_authors(&authors, top, period);
379}
380