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-rw-r--r--ui-stats.c380
1 files changed, 380 insertions, 0 deletions
diff --git a/ui-stats.c b/ui-stats.c
new file mode 100644
index 0000000..9150840
--- /dev/null
+++ b/ui-stats.c
@@ -0,0 +1,380 @@
+#include "cgit.h"
+#include "html.h"
+#include <string-list.h>
+
+#define MONTHS 6
+
+struct Period {
+ const char code;
+ const char *name;
+ int max_periods;
+ int count;
+
+ /* Convert a tm value to the first day in the period */
+ void (*trunc)(struct tm *tm);
+
+ /* Update tm value to start of next/previous period */
+ void (*dec)(struct tm *tm);
+ void (*inc)(struct tm *tm);
+
+ /* Pretty-print a tm value */
+ char *(*pretty)(struct tm *tm);
+};
+
+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 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},
+};
+
+static void add_commit(struct string_list *authors, struct commit *commit,
+ struct 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 Period *period)
+{
+ struct string_list authors;
+ struct rev_info rev;
+ struct commit *commit;
+ const char *argv[] = {NULL, ctx->qry.head, NULL, NULL};
+ 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));
+ 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(3, 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 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 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 Period *period;
+ int top, i;
+
+ period = &periods[0];
+ if (ctx->qry.period) {
+ for (i = 0; i < sizeof(periods) / sizeof(periods[0]); i++)
+ if (periods[i].code == ctx->qry.period[0]) {
+ period = &periods[i];
+ break;
+ }
+ }
+ 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</h2>", period->name);
+
+ html("<form method='get' action='.' style='float: right; text-align: right;'>");
+ if (strcmp(ctx->qry.head, ctx->repo->defbranch))
+ htmlf("<input type='hidden' name='h' value='%s'/>", ctx->qry.head);
+ html("Period: ");
+ html("<select name='period' onchange='this.form.submit();'>");
+ for (i = 0; i < sizeof(periods) / sizeof(periods[0]); 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>&nbsp;&nbsp;<input type='submit' value='Reload'/></noscript>");
+ html("</form>");
+ print_authors(&authors, top, period);
+}
+
generated by cgit v1.2.3-57-g22cb (git 2.39.0) at 2024-11-23 15:36:25 +0000