| -rw-r--r-- | ui-stats.c | 410 |
1 files changed, 410 insertions, 0 deletions
diff --git a/ui-stats.c b/ui-stats.c new file mode 100644 index 0000000..9fc06d3 --- a/dev/null +++ b/ui-stats.c @@ -0,0 +1,410 @@ +#include <string-list.h> + +#include "cgit.h" +#include "html.h" +#include "ui-shared.h" +#include "ui-stats.h" + +#define MONTHS 6 + +struct authorstat { + long total; + struct string_list list; +}; + +#define DAY_SECS (60 * 60 * 24) +#define WEEK_SECS (DAY_SECS * 7) + +static void trunc_week(struct tm *tm) +{ + time_t t = timegm(tm); + t -= ((tm->tm_wday + 6) % 7) * DAY_SECS; + gmtime_r(&t, tm); +} + +static void dec_week(struct tm *tm) +{ + time_t t = timegm(tm); + t -= WEEK_SECS; + gmtime_r(&t, tm); +} + +static void inc_week(struct tm *tm) +{ + time_t t = timegm(tm); + t += WEEK_SECS; + gmtime_r(&t, tm); +} + +static char *pretty_week(struct tm *tm) +{ + static char buf[10]; + + strftime(buf, sizeof(buf), "W%V %G", tm); + return buf; +} + +static void trunc_month(struct tm *tm) +{ + tm->tm_mday = 1; +} + +static void dec_month(struct tm *tm) +{ + tm->tm_mon--; + if (tm->tm_mon < 0) { + tm->tm_year--; + tm->tm_mon = 11; + } +} + +static void inc_month(struct tm *tm) +{ + tm->tm_mon++; + if (tm->tm_mon > 11) { + tm->tm_year++; + tm->tm_mon = 0; + } +} + +static char *pretty_month(struct tm *tm) +{ + static const char *months[] = { + "Jan", "Feb", "Mar", "Apr", "May", "Jun", + "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" + }; + return fmt("%s %d", months[tm->tm_mon], tm->tm_year + 1900); +} + +static void trunc_quarter(struct tm *tm) +{ + trunc_month(tm); + while(tm->tm_mon % 3 != 0) + dec_month(tm); +} + +static void dec_quarter(struct tm *tm) +{ + dec_month(tm); + dec_month(tm); + dec_month(tm); +} + +static void inc_quarter(struct tm *tm) +{ + inc_month(tm); + inc_month(tm); + inc_month(tm); +} + +static char *pretty_quarter(struct tm *tm) +{ + return fmt("Q%d %d", tm->tm_mon / 3 + 1, tm->tm_year + 1900); +} + +static void trunc_year(struct tm *tm) +{ + trunc_month(tm); + tm->tm_mon = 0; +} + +static void dec_year(struct tm *tm) +{ + tm->tm_year--; +} + +static void inc_year(struct tm *tm) +{ + tm->tm_year++; +} + +static char *pretty_year(struct tm *tm) +{ + return fmt("%d", tm->tm_year + 1900); +} + +struct cgit_period periods[] = { + {'w', "week", 12, 4, trunc_week, dec_week, inc_week, pretty_week}, + {'m', "month", 12, 4, trunc_month, dec_month, inc_month, pretty_month}, + {'q', "quarter", 12, 4, trunc_quarter, dec_quarter, inc_quarter, pretty_quarter}, + {'y', "year", 12, 4, trunc_year, dec_year, inc_year, pretty_year}, +}; + +/* Given a period code or name, return a period index (1, 2, 3 or 4) + * and update the period pointer to the correcsponding struct. + * If no matching code is found, return 0. + */ +int cgit_find_stats_period(const char *expr, struct cgit_period **period) +{ + int i; + char code = '\0'; + + if (!expr) + return 0; + + if (strlen(expr) == 1) + code = expr[0]; + + for (i = 0; i < sizeof(periods) / sizeof(periods[0]); i++) + if (periods[i].code == code || !strcmp(periods[i].name, expr)) { + if (period) + *period = &periods[i]; + return i+1; + } + return 0; +} + +static void add_commit(struct string_list *authors, struct commit *commit, + struct cgit_period *period) +{ + struct commitinfo *info; + struct string_list_item *author, *item; + struct authorstat *authorstat; + struct string_list *items; + char *tmp; + struct tm *date; + time_t t; + + info = cgit_parse_commit(commit); + tmp = xstrdup(info->author); + author = string_list_insert(tmp, authors); + if (!author->util) + author->util = xcalloc(1, sizeof(struct authorstat)); + else + free(tmp); + authorstat = author->util; + items = &authorstat->list; + t = info->committer_date; + date = gmtime(&t); + period->trunc(date); + tmp = xstrdup(period->pretty(date)); + item = string_list_insert(tmp, items); + if (item->util) + free(tmp); + item->util++; + authorstat->total++; + cgit_free_commitinfo(info); +} + +static int cmp_total_commits(const void *a1, const void *a2) +{ + const struct string_list_item *i1 = a1; + const struct string_list_item *i2 = a2; + const struct authorstat *auth1 = i1->util; + const struct authorstat *auth2 = i2->util; + + return auth2->total - auth1->total; +} + +/* Walk the commit DAG and collect number of commits per author per + * timeperiod into a nested string_list collection. + */ +struct string_list collect_stats(struct cgit_context *ctx, + struct cgit_period *period) +{ + struct string_list authors; + struct rev_info rev; + struct commit *commit; + const char *argv[] = {NULL, ctx->qry.head, NULL, NULL, NULL, NULL}; + int argc = 3; + time_t now; + long i; + struct tm *tm; + char tmp[11]; + + time(&now); + tm = gmtime(&now); + period->trunc(tm); + for (i = 1; i < period->count; i++) + period->dec(tm); + strftime(tmp, sizeof(tmp), "%Y-%m-%d", tm); + argv[2] = xstrdup(fmt("--since=%s", tmp)); + if (ctx->qry.path) { + argv[3] = "--"; + argv[4] = ctx->qry.path; + argc += 2; + } + init_revisions(&rev, NULL); + rev.abbrev = DEFAULT_ABBREV; + rev.commit_format = CMIT_FMT_DEFAULT; + rev.no_merges = 1; + rev.verbose_header = 1; + rev.show_root_diff = 0; + setup_revisions(argc, argv, &rev, NULL); + prepare_revision_walk(&rev); + memset(&authors, 0, sizeof(authors)); + while ((commit = get_revision(&rev)) != NULL) { + add_commit(&authors, commit, period); + free(commit->buffer); + free_commit_list(commit->parents); + } + return authors; +} + +void print_combined_authorrow(struct string_list *authors, int from, int to, + const char *name, const char *leftclass, const char *centerclass, + const char *rightclass, struct cgit_period *period) +{ + struct string_list_item *author; + struct authorstat *authorstat; + struct string_list *items; + struct string_list_item *date; + time_t now; + long i, j, total, subtotal; + struct tm *tm; + char *tmp; + + time(&now); + tm = gmtime(&now); + period->trunc(tm); + for (i = 1; i < period->count; i++) + period->dec(tm); + + total = 0; + htmlf("<tr><td class='%s'>%s</td>", leftclass, + fmt(name, to - from + 1)); + for (j = 0; j < period->count; j++) { + tmp = period->pretty(tm); + period->inc(tm); + subtotal = 0; + for (i = from; i <= to; i++) { + author = &authors->items[i]; + authorstat = author->util; + items = &authorstat->list; + date = string_list_lookup(tmp, items); + if (date) + subtotal += (size_t)date->util; + } + htmlf("<td class='%s'>%d</td>", centerclass, subtotal); + total += subtotal; + } + htmlf("<td class='%s'>%d</td></tr>", rightclass, total); +} + +void print_authors(struct string_list *authors, int top, + struct cgit_period *period) +{ + struct string_list_item *author; + struct authorstat *authorstat; + struct string_list *items; + struct string_list_item *date; + time_t now; + long i, j, total; + struct tm *tm; + char *tmp; + + time(&now); + tm = gmtime(&now); + period->trunc(tm); + for (i = 1; i < period->count; i++) + period->dec(tm); + + html("<table class='stats'><tr><th>Author</th>"); + for (j = 0; j < period->count; j++) { + tmp = period->pretty(tm); + htmlf("<th>%s</th>", tmp); + period->inc(tm); + } + html("<th>Total</th></tr>\n"); + + if (top <= 0 || top > authors->nr) + top = authors->nr; + + for (i = 0; i < top; i++) { + author = &authors->items[i]; + html("<tr><td class='left'>"); + html_txt(author->string); + html("</td>"); + authorstat = author->util; + items = &authorstat->list; + total = 0; + for (j = 0; j < period->count; j++) + period->dec(tm); + for (j = 0; j < period->count; j++) { + tmp = period->pretty(tm); + period->inc(tm); + date = string_list_lookup(tmp, items); + if (!date) + html("<td>0</td>"); + else { + htmlf("<td>%d</td>", date->util); + total += (size_t)date->util; + } + } + htmlf("<td class='sum'>%d</td></tr>", total); + } + + if (top < authors->nr) + print_combined_authorrow(authors, top, authors->nr - 1, + "Others (%d)", "left", "", "sum", period); + + print_combined_authorrow(authors, 0, authors->nr - 1, "Total", + "total", "sum", "sum", period); + html("</table>"); +} + +/* Create a sorted string_list with one entry per author. The util-field + * for each author is another string_list which is used to calculate the + * number of commits per time-interval. + */ +void cgit_show_stats(struct cgit_context *ctx) +{ + struct string_list authors; + struct cgit_period *period; + int top, i; + const char *code = "w"; + + if (ctx->qry.period) + code = ctx->qry.period; + + i = cgit_find_stats_period(code, &period); + if (!i) { + cgit_print_error(fmt("Unknown statistics type: %c", code)); + return; + } + if (i > ctx->repo->max_stats) { + cgit_print_error(fmt("Statistics type disabled: %s", + period->name)); + return; + } + authors = collect_stats(ctx, period); + qsort(authors.items, authors.nr, sizeof(struct string_list_item), + cmp_total_commits); + + top = ctx->qry.ofs; + if (!top) + top = 10; + htmlf("<h2>Commits per author per %s", period->name); + if (ctx->qry.path) { + html(" (path '"); + html_txt(ctx->qry.path); + html("')"); + } + html("</h2>"); + + html("<form method='get' action='' style='float: right; text-align: right;'>"); + cgit_add_hidden_formfields(1, 0, "stats"); + if (ctx->repo->max_stats > 1) { + html("Period: "); + html("<select name='period' onchange='this.form.submit();'>"); + for (i = 0; i < ctx->repo->max_stats; i++) + htmlf("<option value='%c'%s>%s</option>", + periods[i].code, + period == &periods[i] ? " selected" : "", + periods[i].name); + html("</select><br/><br/>"); + } + html("Authors: "); + html(""); + html("<select name='ofs' onchange='this.form.submit();'>"); + htmlf("<option value='10'%s>10</option>", top == 10 ? " selected" : ""); + htmlf("<option value='25'%s>25</option>", top == 25 ? " selected" : ""); + htmlf("<option value='50'%s>50</option>", top == 50 ? " selected" : ""); + htmlf("<option value='100'%s>100</option>", top == 100 ? " selected" : ""); + htmlf("<option value='-1'%s>All</option>", top == -1 ? " selected" : ""); + html("</select>"); + html("<noscript> <input type='submit' value='Reload'/></noscript>"); + html("</form>"); + print_authors(&authors, top, period); +} + |