427 lines
9.7 KiB
C
427 lines
9.7 KiB
C
#include "cgit.h"
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#include "ui-stats.h"
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#include "html.h"
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#include "ui-shared.h"
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struct authorstat {
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long total;
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struct string_list list;
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};
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#define DAY_SECS (60 * 60 * 24)
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#define WEEK_SECS (DAY_SECS * 7)
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static void trunc_week(struct tm *tm)
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{
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time_t t = timegm(tm);
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t -= ((tm->tm_wday + 6) % 7) * DAY_SECS;
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gmtime_r(&t, tm);
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}
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static void dec_week(struct tm *tm)
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{
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time_t t = timegm(tm);
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t -= WEEK_SECS;
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gmtime_r(&t, tm);
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}
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static void inc_week(struct tm *tm)
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{
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time_t t = timegm(tm);
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t += WEEK_SECS;
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gmtime_r(&t, tm);
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}
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static char *pretty_week(struct tm *tm)
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{
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static char buf[10];
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strftime(buf, sizeof(buf), "W%V %G", tm);
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return buf;
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}
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static void trunc_month(struct tm *tm)
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{
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tm->tm_mday = 1;
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}
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static void dec_month(struct tm *tm)
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{
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tm->tm_mon--;
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if (tm->tm_mon < 0) {
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tm->tm_year--;
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tm->tm_mon = 11;
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}
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}
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static void inc_month(struct tm *tm)
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{
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tm->tm_mon++;
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if (tm->tm_mon > 11) {
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tm->tm_year++;
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tm->tm_mon = 0;
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}
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}
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static char *pretty_month(struct tm *tm)
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{
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static const char *months[] = {
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"Jan", "Feb", "Mar", "Apr", "May", "Jun",
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"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
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};
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return fmt("%s %d", months[tm->tm_mon], tm->tm_year + 1900);
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}
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static void trunc_quarter(struct tm *tm)
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{
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trunc_month(tm);
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while (tm->tm_mon % 3 != 0)
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dec_month(tm);
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}
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static void dec_quarter(struct tm *tm)
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{
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dec_month(tm);
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dec_month(tm);
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dec_month(tm);
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}
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static void inc_quarter(struct tm *tm)
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{
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inc_month(tm);
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inc_month(tm);
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inc_month(tm);
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}
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static char *pretty_quarter(struct tm *tm)
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{
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return fmt("Q%d %d", tm->tm_mon / 3 + 1, tm->tm_year + 1900);
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}
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static void trunc_year(struct tm *tm)
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{
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trunc_month(tm);
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tm->tm_mon = 0;
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}
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static void dec_year(struct tm *tm)
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{
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tm->tm_year--;
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}
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static void inc_year(struct tm *tm)
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{
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tm->tm_year++;
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}
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static char *pretty_year(struct tm *tm)
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{
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return fmt("%d", tm->tm_year + 1900);
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}
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static const struct cgit_period periods[] = {
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{'w', "week", 12, 4, trunc_week, dec_week, inc_week, pretty_week},
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{'m', "month", 12, 4, trunc_month, dec_month, inc_month, pretty_month},
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{'q', "quarter", 12, 4, trunc_quarter, dec_quarter, inc_quarter, pretty_quarter},
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{'y', "year", 12, 4, trunc_year, dec_year, inc_year, pretty_year},
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};
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/* Given a period code or name, return a period index (1, 2, 3 or 4)
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* and update the period pointer to the correcsponding struct.
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* If no matching code is found, return 0.
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*/
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int cgit_find_stats_period(const char *expr, const struct cgit_period **period)
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{
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int i;
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char code = '\0';
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if (!expr)
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return 0;
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if (strlen(expr) == 1)
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code = expr[0];
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for (i = 0; i < sizeof(periods) / sizeof(periods[0]); i++)
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if (periods[i].code == code || !strcmp(periods[i].name, expr)) {
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if (period)
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*period = &periods[i];
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return i + 1;
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}
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return 0;
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}
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const char *cgit_find_stats_periodname(int idx)
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{
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if (idx > 0 && idx < 4)
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return periods[idx - 1].name;
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else
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return "";
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}
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static void add_commit(struct string_list *authors, struct commit *commit,
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const struct cgit_period *period)
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{
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struct commitinfo *info;
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struct string_list_item *author, *item;
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struct authorstat *authorstat;
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struct string_list *items;
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char *tmp;
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struct tm *date;
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time_t t;
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uintptr_t *counter;
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info = cgit_parse_commit(commit);
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tmp = xstrdup(info->author);
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author = string_list_insert(authors, tmp);
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if (!author->util)
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author->util = xcalloc(1, sizeof(struct authorstat));
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else
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free(tmp);
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authorstat = author->util;
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items = &authorstat->list;
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t = info->committer_date;
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date = gmtime(&t);
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period->trunc(date);
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tmp = xstrdup(period->pretty(date));
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item = string_list_insert(items, tmp);
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counter = (uintptr_t *)&item->util;
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if (*counter)
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free(tmp);
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(*counter)++;
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authorstat->total++;
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cgit_free_commitinfo(info);
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}
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static int cmp_total_commits(const void *a1, const void *a2)
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{
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const struct string_list_item *i1 = a1;
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const struct string_list_item *i2 = a2;
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const struct authorstat *auth1 = i1->util;
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const struct authorstat *auth2 = i2->util;
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return auth2->total - auth1->total;
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}
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/* Walk the commit DAG and collect number of commits per author per
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* timeperiod into a nested string_list collection.
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*/
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static struct string_list collect_stats(const struct cgit_period *period)
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{
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struct string_list authors;
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struct rev_info rev;
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struct commit *commit;
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const char *argv[] = {NULL, ctx.qry.head, NULL, NULL, NULL, NULL};
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int argc = 3;
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time_t now;
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long i;
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struct tm *tm;
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char tmp[11];
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time(&now);
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tm = gmtime(&now);
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period->trunc(tm);
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for (i = 1; i < period->count; i++)
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period->dec(tm);
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strftime(tmp, sizeof(tmp), "%Y-%m-%d", tm);
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argv[2] = xstrdup(fmt("--since=%s", tmp));
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if (ctx.qry.path) {
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argv[3] = "--";
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argv[4] = ctx.qry.path;
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argc += 2;
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}
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init_revisions(&rev, NULL);
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rev.abbrev = DEFAULT_ABBREV;
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rev.commit_format = CMIT_FMT_DEFAULT;
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rev.max_parents = 1;
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rev.verbose_header = 1;
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rev.show_root_diff = 0;
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setup_revisions(argc, argv, &rev, NULL);
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prepare_revision_walk(&rev);
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memset(&authors, 0, sizeof(authors));
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while ((commit = get_revision(&rev)) != NULL) {
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add_commit(&authors, commit, period);
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free_commit_buffer(the_repository->parsed_objects, commit);
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free_commit_list(commit->parents);
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commit->parents = NULL;
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}
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return authors;
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}
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static void print_combined_authorrow(struct string_list *authors, int from,
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int to, const char *name,
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const char *leftclass,
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const char *centerclass,
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const char *rightclass,
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const struct cgit_period *period)
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{
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struct string_list_item *author;
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struct authorstat *authorstat;
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struct string_list *items;
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struct string_list_item *date;
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time_t now;
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long i, j, total, subtotal;
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struct tm *tm;
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char *tmp;
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time(&now);
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tm = gmtime(&now);
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period->trunc(tm);
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for (i = 1; i < period->count; i++)
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period->dec(tm);
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total = 0;
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htmlf("<tr><td class='%s'>%s</td>", leftclass,
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fmt(name, to - from + 1));
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for (j = 0; j < period->count; j++) {
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tmp = period->pretty(tm);
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period->inc(tm);
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subtotal = 0;
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for (i = from; i <= to; i++) {
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author = &authors->items[i];
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authorstat = author->util;
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items = &authorstat->list;
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date = string_list_lookup(items, tmp);
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if (date)
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subtotal += (uintptr_t)date->util;
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}
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htmlf("<td class='%s'>%ld</td>", centerclass, subtotal);
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total += subtotal;
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}
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htmlf("<td class='%s'>%ld</td></tr>", rightclass, total);
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}
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static void print_authors(struct string_list *authors, int top,
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const struct cgit_period *period)
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{
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struct string_list_item *author;
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struct authorstat *authorstat;
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struct string_list *items;
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struct string_list_item *date;
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time_t now;
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long i, j, total;
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struct tm *tm;
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char *tmp;
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time(&now);
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tm = gmtime(&now);
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period->trunc(tm);
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for (i = 1; i < period->count; i++)
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period->dec(tm);
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html("<table class='stats'><tr><th>Author</th>");
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for (j = 0; j < period->count; j++) {
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tmp = period->pretty(tm);
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htmlf("<th>%s</th>", tmp);
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period->inc(tm);
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}
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html("<th>Total</th></tr>\n");
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if (top <= 0 || top > authors->nr)
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top = authors->nr;
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for (i = 0; i < top; i++) {
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author = &authors->items[i];
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html("<tr><td class='left'>");
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html_txt(author->string);
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html("</td>");
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authorstat = author->util;
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items = &authorstat->list;
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total = 0;
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for (j = 0; j < period->count; j++)
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period->dec(tm);
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for (j = 0; j < period->count; j++) {
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tmp = period->pretty(tm);
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period->inc(tm);
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date = string_list_lookup(items, tmp);
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if (!date)
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html("<td>0</td>");
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else {
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htmlf("<td>%lu</td>", (uintptr_t)date->util);
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total += (uintptr_t)date->util;
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}
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}
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htmlf("<td class='sum'>%ld</td></tr>", total);
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}
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if (top < authors->nr)
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print_combined_authorrow(authors, top, authors->nr - 1,
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"Others (%ld)", "left", "", "sum", period);
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print_combined_authorrow(authors, 0, authors->nr - 1, "Total",
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"total", "sum", "sum", period);
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html("</table>");
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}
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/* Create a sorted string_list with one entry per author. The util-field
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* for each author is another string_list which is used to calculate the
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* number of commits per time-interval.
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*/
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void cgit_show_stats(void)
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{
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struct string_list authors;
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const struct cgit_period *period;
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int top, i;
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const char *code = "w";
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if (ctx.qry.period)
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code = ctx.qry.period;
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i = cgit_find_stats_period(code, &period);
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if (!i) {
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cgit_print_error_page(404, "Not found",
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"Unknown statistics type: %c", code[0]);
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return;
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}
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if (i > ctx.repo->max_stats) {
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cgit_print_error_page(400, "Bad request",
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"Statistics type disabled: %s", period->name);
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return;
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}
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authors = collect_stats(period);
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qsort(authors.items, authors.nr, sizeof(struct string_list_item),
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cmp_total_commits);
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top = ctx.qry.ofs;
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if (!top)
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top = 10;
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cgit_print_layout_start();
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html("<div class='cgit-panel'>");
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html("<b>stat options</b>");
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html("<form method='get'>");
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cgit_add_hidden_formfields(1, 0, "stats");
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html("<table><tr><td colspan='2'/></tr>");
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if (ctx.repo->max_stats > 1) {
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html("<tr><td class='label'>Period:</td>");
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html("<td class='ctrl'><select name='period' onchange='this.form.submit();'>");
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for (i = 0; i < ctx.repo->max_stats; i++)
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html_option(fmt("%c", periods[i].code),
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periods[i].name, fmt("%c", period->code));
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html("</select></td></tr>");
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}
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html("<tr><td class='label'>Authors:</td>");
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html("<td class='ctrl'><select name='ofs' onchange='this.form.submit();'>");
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html_intoption(10, "10", top);
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html_intoption(25, "25", top);
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html_intoption(50, "50", top);
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html_intoption(100, "100", top);
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html_intoption(-1, "all", top);
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html("</select></td></tr>");
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html("<tr><td/><td class='ctrl'>");
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html("<noscript><input type='submit' value='Reload'/></noscript>");
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html("</td></tr></table>");
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html("</form>");
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html("</div>");
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htmlf("<h2>Commits per author per %s", period->name);
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if (ctx.qry.path) {
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html(" (path '");
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html_txt(ctx.qry.path);
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html("')");
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}
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html("</h2>");
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print_authors(&authors, top, period);
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cgit_print_layout_end();
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}
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