Add and use cgit_find_stats_periodname() in print_repo()

Signed-off-by: Lars Hjemli <hjemli@gmail.com>

3 files changed, 12 insertions, 0 deletions

diff --git a/cgit.c b/cgit.c
index b0e202e..93a7a69 100644
--- a/cgit.c
+++ b/cgit.c
@@ -302,384 +302,387 @@ static void prepare_context(struct cgit_context *ctx)
 		ctx->env.cgit_config = CGIT_CONFIG;
 }
 
 struct refmatch {
 	char *req_ref;
 	char *first_ref;
 	int match;
 };
 
 int find_current_ref(const char *refname, const unsigned char *sha1,
 		     int flags, void *cb_data)
 {
 	struct refmatch *info;
 
 	info = (struct refmatch *)cb_data;
 	if (!strcmp(refname, info->req_ref))
 		info->match = 1;
 	if (!info->first_ref)
 		info->first_ref = xstrdup(refname);
 	return info->match;
 }
 
 char *find_default_branch(struct cgit_repo *repo)
 {
 	struct refmatch info;
 	char *ref;
 
 	info.req_ref = repo->defbranch;
 	info.first_ref = NULL;
 	info.match = 0;
 	for_each_branch_ref(find_current_ref, &info);
 	if (info.match)
 		ref = info.req_ref;
 	else
 		ref = info.first_ref;
 	if (ref)
 		ref = xstrdup(ref);
 	return ref;
 }
 
 static int prepare_repo_cmd(struct cgit_context *ctx)
 {
 	char *tmp;
 	unsigned char sha1[20];
 	int nongit = 0;
 
 	setenv("GIT_DIR", ctx->repo->path, 1);
 	setup_git_directory_gently(&nongit);
 	if (nongit) {
 		ctx->page.title = fmt("%s - %s", ctx->cfg.root_title,
 				      "config error");
 		tmp = fmt("Not a git repository: '%s'", ctx->repo->path);
 		ctx->repo = NULL;
 		cgit_print_http_headers(ctx);
 		cgit_print_docstart(ctx);
 		cgit_print_pageheader(ctx);
 		cgit_print_error(tmp);
 		cgit_print_docend();
 		return 1;
 	}
 	ctx->page.title = fmt("%s - %s", ctx->repo->name, ctx->repo->desc);
 
 	if (!ctx->qry.head) {
 		ctx->qry.nohead = 1;
 		ctx->qry.head = find_default_branch(ctx->repo);
 		ctx->repo->defbranch = ctx->qry.head;
 	}
 
 	if (!ctx->qry.head) {
 		cgit_print_http_headers(ctx);
 		cgit_print_docstart(ctx);
 		cgit_print_pageheader(ctx);
 		cgit_print_error("Repository seems to be empty");
 		cgit_print_docend();
 		return 1;
 	}
 
 	if (get_sha1(ctx->qry.head, sha1)) {
 		tmp = xstrdup(ctx->qry.head);
 		ctx->qry.head = ctx->repo->defbranch;
 		ctx->page.status = 404;
 		ctx->page.statusmsg = "not found";
 		cgit_print_http_headers(ctx);
 		cgit_print_docstart(ctx);
 		cgit_print_pageheader(ctx);
 		cgit_print_error(fmt("Invalid branch: %s", tmp));
 		cgit_print_docend();
 		return 1;
 	}
 	return 0;
 }
 
 static void process_request(void *cbdata)
 {
 	struct cgit_context *ctx = cbdata;
 	struct cgit_cmd *cmd;
 
 	cmd = cgit_get_cmd(ctx);
 	if (!cmd) {
 		ctx->page.title = "cgit error";
 		cgit_print_http_headers(ctx);
 		cgit_print_docstart(ctx);
 		cgit_print_pageheader(ctx);
 		cgit_print_error("Invalid request");
 		cgit_print_docend();
 		return;
 	}
 
 	if (cmd->want_repo && !ctx->repo) {
 		cgit_print_http_headers(ctx);
 		cgit_print_docstart(ctx);
 		cgit_print_pageheader(ctx);
 		cgit_print_error(fmt("No repository selected"));
 		cgit_print_docend();
 		return;
 	}
 
 	if (ctx->repo && prepare_repo_cmd(ctx))
 		return;
 
 	if (cmd->want_layout) {
 		cgit_print_http_headers(ctx);
 		cgit_print_docstart(ctx);
 		cgit_print_pageheader(ctx);
 	}
 
 	cmd->fn(ctx);
 
 	if (cmd->want_layout)
 		cgit_print_docend();
 }
 
 int cmp_repos(const void *a, const void *b)
 {
 	const struct cgit_repo *ra = a, *rb = b;
 	return strcmp(ra->url, rb->url);
 }
 
 char *build_snapshot_setting(int bitmap)
 {
 	const struct cgit_snapshot_format *f;
 	char *result = xstrdup("");
 	char *tmp;
 	int len;
 
 	for (f = cgit_snapshot_formats; f->suffix; f++) {
 		if (f->bit & bitmap) {
 			tmp = result;
 			result = xstrdup(fmt("%s%s ", tmp, f->suffix));
 			free(tmp);
 		}
 	}
 	len = strlen(result);
 	if (len)
 		result[len - 1] = '\0';
 	return result;
 }
 
 void print_repo(FILE *f, struct cgit_repo *repo)
 {
 	fprintf(f, "repo.url=%s\n", repo->url);
 	fprintf(f, "repo.name=%s\n", repo->name);
 	fprintf(f, "repo.path=%s\n", repo->path);
 	if (repo->owner)
 		fprintf(f, "repo.owner=%s\n", repo->owner);
 	if (repo->desc)
 		fprintf(f, "repo.desc=%s\n", repo->desc);
 	if (repo->readme)
 		fprintf(f, "repo.readme=%s\n", repo->readme);
 	if (repo->defbranch)
 		fprintf(f, "repo.defbranch=%s\n", repo->defbranch);
 	if (repo->module_link)
 		fprintf(f, "repo.module-link=%s\n", repo->module_link);
 	if (repo->section)
 		fprintf(f, "repo.section=%s\n", repo->section);
 	if (repo->clone_url)
 		fprintf(f, "repo.clone-url=%s\n", repo->clone_url);
 	fprintf(f, "repo.enable-log-filecount=%d\n",
 	        repo->enable_log_filecount);
 	fprintf(f, "repo.enable-log-linecount=%d\n",
 	        repo->enable_log_linecount);
 	if (repo->about_filter && repo->about_filter != ctx.cfg.about_filter)
 		fprintf(f, "repo.about-filter=%s\n", repo->about_filter->cmd);
 	if (repo->commit_filter && repo->commit_filter != ctx.cfg.commit_filter)
 		fprintf(f, "repo.commit-filter=%s\n", repo->commit_filter->cmd);
 	if (repo->source_filter && repo->source_filter != ctx.cfg.source_filter)
 		fprintf(f, "repo.source-filter=%s\n", repo->source_filter->cmd);
 	if (repo->snapshots != ctx.cfg.snapshots) {
 		char *tmp = build_snapshot_setting(repo->snapshots);
 		fprintf(f, "repo.snapshots=%s\n", tmp);
 		free(tmp);
 	}
+	if (repo->max_stats != ctx.cfg.max_stats)
+		fprintf(f, "repo.max-stats=%s\n",
+		        cgit_find_stats_periodname(repo->max_stats));
 	fprintf(f, "\n");
 }
 
 void print_repolist(FILE *f, struct cgit_repolist *list, int start)
 {
 	int i;
 
 	for(i = start; i < list->count; i++)
 		print_repo(f, &list->repos[i]);
 }
 
 /* Scan 'path' for git repositories, save the resulting repolist in 'cached_rc'
  * and return 0 on success.
  */
 static int generate_cached_repolist(const char *path, const char *cached_rc)
 {
 	char *locked_rc;
 	int idx;
 	FILE *f;
 
 	locked_rc = xstrdup(fmt("%s.lock", cached_rc));
 	f = fopen(locked_rc, "wx");
 	if (!f) {
 		/* Inform about the error unless the lockfile already existed,
 		 * since that only means we've got concurrent requests.
 		 */
 		if (errno != EEXIST)
 			fprintf(stderr, "[cgit] Error opening %s: %s (%d)\n",
 				locked_rc, strerror(errno), errno);
 		return errno;
 	}
 	idx = cgit_repolist.count;
 	scan_tree(path, repo_config);
 	print_repolist(f, &cgit_repolist, idx);
 	if (rename(locked_rc, cached_rc))
 		fprintf(stderr, "[cgit] Error renaming %s to %s: %s (%d)\n",
 			locked_rc, cached_rc, strerror(errno), errno);
 	fclose(f);
 	return 0;
 }
 
 static void process_cached_repolist(const char *path)
 {
 	struct stat st;
 	char *cached_rc;
 	time_t age;
 
 	cached_rc = xstrdup(fmt("%s/rc-%8x", ctx.cfg.cache_root,
 		hash_str(path)));
 
 	if (stat(cached_rc, &st)) {
 		/* Nothing is cached, we need to scan without forking. And
 		 * if we fail to generate a cached repolist, we need to
 		 * invoke scan_tree manually.
 		 */
 		if (generate_cached_repolist(path, cached_rc))
 			scan_tree(path, repo_config);
 		return;
 	}
 
 	parse_configfile(cached_rc, config_cb);
 
 	/* If the cached configfile hasn't expired, lets exit now */
 	age = time(NULL) - st.st_mtime;
 	if (age <= (ctx.cfg.cache_scanrc_ttl * 60))
 		return;
 
 	/* The cached repolist has been parsed, but it was old. So lets
 	 * rescan the specified path and generate a new cached repolist
 	 * in a child-process to avoid latency for the current request.
 	 */
 	if (fork())
 		return;
 
 	exit(generate_cached_repolist(path, cached_rc));
 }
 
 static void cgit_parse_args(int argc, const char **argv)
 {
 	int i;
 	int scan = 0;
 
 	for (i = 1; i < argc; i++) {
 		if (!strncmp(argv[i], "--cache=", 8)) {
 			ctx.cfg.cache_root = xstrdup(argv[i]+8);
 		}
 		if (!strcmp(argv[i], "--nocache")) {
 			ctx.cfg.nocache = 1;
 		}
 		if (!strcmp(argv[i], "--nohttp")) {
 			ctx.env.no_http = "1";
 		}
 		if (!strncmp(argv[i], "--query=", 8)) {
 			ctx.qry.raw = xstrdup(argv[i]+8);
 		}
 		if (!strncmp(argv[i], "--repo=", 7)) {
 			ctx.qry.repo = xstrdup(argv[i]+7);
 		}
 		if (!strncmp(argv[i], "--page=", 7)) {
 			ctx.qry.page = xstrdup(argv[i]+7);
 		}
 		if (!strncmp(argv[i], "--head=", 7)) {
 			ctx.qry.head = xstrdup(argv[i]+7);
 			ctx.qry.has_symref = 1;
 		}
 		if (!strncmp(argv[i], "--sha1=", 7)) {
 			ctx.qry.sha1 = xstrdup(argv[i]+7);
 			ctx.qry.has_sha1 = 1;
 		}
 		if (!strncmp(argv[i], "--ofs=", 6)) {
 			ctx.qry.ofs = atoi(argv[i]+6);
 		}
 		if (!strncmp(argv[i], "--scan-tree=", 12) ||
 		    !strncmp(argv[i], "--scan-path=", 12)) {
 			scan++;
 			scan_tree(argv[i] + 12, repo_config);
 		}
 	}
 	if (scan) {
 		qsort(cgit_repolist.repos, cgit_repolist.count,
 			sizeof(struct cgit_repo), cmp_repos);
 		print_repolist(stdout, &cgit_repolist, 0);
 		exit(0);
 	}
 }
 
 static int calc_ttl()
 {
 	if (!ctx.repo)
 		return ctx.cfg.cache_root_ttl;
 
 	if (!ctx.qry.page)
 		return ctx.cfg.cache_repo_ttl;
 
 	if (ctx.qry.has_symref)
 		return ctx.cfg.cache_dynamic_ttl;
 
 	if (ctx.qry.has_sha1)
 		return ctx.cfg.cache_static_ttl;
 
 	return ctx.cfg.cache_repo_ttl;
 }
 
 int main(int argc, const char **argv)
 {
 	const char *path;
 	char *qry;
 	int err, ttl;
 
 	prepare_context(&ctx);
 	cgit_repolist.length = 0;
 	cgit_repolist.count = 0;
 	cgit_repolist.repos = NULL;
 
 	cgit_parse_args(argc, argv);
 	parse_configfile(ctx.env.cgit_config, config_cb);
 	ctx.repo = NULL;
 	http_parse_querystring(ctx.qry.raw, querystring_cb);
 
 	/* If virtual-root isn't specified in cgitrc, lets pretend
 	 * that virtual-root equals SCRIPT_NAME.
 	 */
 	if (!ctx.cfg.virtual_root)
 		ctx.cfg.virtual_root = ctx.cfg.script_name;
 
 	/* If no url parameter is specified on the querystring, lets
 	 * use PATH_INFO as url. This allows cgit to work with virtual
 	 * urls without the need for rewriterules in the webserver (as
 	 * long as PATH_INFO is included in the cache lookup key).
 	 */
 	path = ctx.env.path_info;
 	if (!ctx.qry.url && path) {
 		if (path[0] == '/')
 			path++;
 		ctx.qry.url = xstrdup(path);
 		if (ctx.qry.raw) {
 			qry = ctx.qry.raw;
 			ctx.qry.raw = xstrdup(fmt("%s?%s", path, qry));
 			free(qry);
 		} else
 			ctx.qry.raw = xstrdup(ctx.qry.url);
 		cgit_parse_url(ctx.qry.url);
 	}
 
 	ttl = calc_ttl();
 	ctx.page.expires += ttl*60;
 	if (ctx.env.request_method && !strcmp(ctx.env.request_method, "HEAD"))
 		ctx.cfg.nocache = 1;
 	if (ctx.cfg.nocache)
 		ctx.cfg.cache_size = 0;
 	err = cache_process(ctx.cfg.cache_size, ctx.cfg.cache_root,
 			    ctx.qry.raw, ttl, process_request, &ctx);
diff --git a/ui-stats.c b/ui-stats.c
index 9fc06d3..bdaf9cc 100644
--- a/ui-stats.c
+++ b/ui-stats.c
@@ -1,348 +1,356 @@
 #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;
 }
 
+const char *cgit_find_stats_periodname(int idx)
+{
+	if (idx > 0 && idx < 4)
+		return periods[idx - 1].name;
+	else
+		return "";
+}
+
 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.
diff --git a/ui-stats.h b/ui-stats.h
index 4f13dba..f0761ba 100644
--- a/ui-stats.h
+++ b/ui-stats.h
@@ -1,27 +1,28 @@
 #ifndef UI_STATS_H
 #define UI_STATS_H
 
 #include "cgit.h"
 
 struct cgit_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);
 };
 
 extern int cgit_find_stats_period(const char *expr, struct cgit_period **period);
+extern const char *cgit_find_stats_periodname(int idx);
 
 extern void cgit_show_stats(struct cgit_context *ctx);
 
 #endif /* UI_STATS_H */