+/* cgit.c: cgi for the git scm
+ *
+ * Copyright (C) 2006 Lars Hjemli
+ *
+ * Licensed under GNU General Public License v2
+ * (see COPYING for full license text)
+ */
+
#include "cgit.h"
-static const char cgit_doctype[] =
+const char cgit_version[] = CGIT_VERSION;
+
+const char cgit_doctype[] =
"<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\"\n"
" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n";
-static const char cgit_error[] =
+const char cgit_error[] =
"<div class='error'>%s</div>";
-static const char cgit_lib_error[] =
+const char cgit_lib_error[] =
"<div class='error'>%s: %s</div>";
+int htmlfd = 0;
-char *cgit_root = "/var/git";
+char *cgit_root = "/usr/src/git";
char *cgit_root_title = "Git repository browser";
char *cgit_css = "/cgit.css";
char *cgit_logo = "/git-logo.png";
char *cgit_logo_link = "http://www.kernel.org/pub/software/scm/git/docs/";
char *cgit_virtual_root = NULL;
+char *cgit_cache_root = "/var/cache/cgit";
+
+int cgit_max_lock_attempts = 5;
+int cgit_cache_root_ttl = 5;
+int cgit_cache_repo_ttl = 5;
+int cgit_cache_dynamic_ttl = 5;
+int cgit_cache_static_ttl = -1;
+int cgit_cache_max_create_time = 5;
+
char *cgit_repo_name = NULL;
char *cgit_repo_desc = NULL;
char *cgit_repo_owner = NULL;
+int cgit_query_has_symref = 0;
+int cgit_query_has_sha1 = 0;
+
+char *cgit_querystring = NULL;
char *cgit_query_repo = NULL;
char *cgit_query_page = NULL;
char *cgit_query_head = NULL;
+char *cgit_query_sha1 = NULL;
+
+struct cacheitem cacheitem;
int cgit_parse_query(char *txt, configfn fn)
{
- char *t = txt, *value = NULL, c;
+ char *t, *value = NULL, c;
if (!txt)
return 0;
+ t = txt = xstrdup(txt);
+
while((c=*t) != '\0') {
if (c=='=') {
*t = '\0';
cgit_query_repo = xstrdup(value);
else if (!strcmp(name, "p"))
cgit_query_page = xstrdup(value);
- else if (!strcmp(name, "h"))
+ else if (!strcmp(name, "h")) {
cgit_query_head = xstrdup(value);
+ cgit_query_has_symref = 1;
+ } else if (!strcmp(name, "id")) {
+ cgit_query_sha1 = xstrdup(value);
+ cgit_query_has_sha1 = 1;
+ }
}
char *cgit_repourl(const char *reponame)
return 0;
}
+/* Sun, 06 Nov 1994 08:49:37 GMT */
+static char *http_date(time_t t)
+{
+ static char day[][4] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
+ static char month[][4] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
+ "Jul", "Aug", "Sep", "Oct", "Now", "Dec"};
+ struct tm *tm = gmtime(&t);
+ return fmt("%s, %02d %s %04d %02d:%02d:%02d GMT", day[tm->tm_wday],
+ tm->tm_mday, month[tm->tm_mon], 1900+tm->tm_year,
+ tm->tm_hour, tm->tm_min, tm->tm_sec);
+}
+
+static int ttl_seconds(int ttl)
+{
+ if (ttl<0)
+ return 60 * 60 * 24 * 365;
+ else
+ return ttl * 60;
+}
+
static void cgit_print_docstart(char *title)
{
html("Content-Type: text/html; charset=utf-8\n");
+ htmlf("Last-Modified: %s\n", http_date(cacheitem.st.st_mtime));
+ htmlf("Expires: %s\n", http_date(cacheitem.st.st_mtime +
+ ttl_seconds(cacheitem.ttl)));
html("\n");
html(cgit_doctype);
html("<html>\n");
html("<title>");
html_txt(title);
html("</title>\n");
+ htmlf("<meta name='generator' content='cgit v%s'/>\n", cgit_version);
html("<link rel='stylesheet' type='text/css' href='");
html_attr(cgit_css);
html("'/>\n");
struct stat st;
char *name;
+ chdir(cgit_root);
cgit_print_docstart(cgit_root_title);
cgit_print_pageheader(cgit_root_title);
continue;
cgit_repo_name = cgit_repo_desc = cgit_repo_owner = NULL;
- name = fmt("%s/.git/info/cgit", de->d_name);
+ name = fmt("%s/info/cgit", de->d_name);
if (cgit_read_config(name, cgit_repo_config_cb))
continue;
strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", time);
html_txt(buf);
html("</td><td>");
- char *qry = fmt("h=%s", sha1_to_hex(commit->object.sha1));
+ char *qry = fmt("id=%s", sha1_to_hex(commit->object.sha1));
char *url = cgit_pageurl(cgit_query_repo, "view", qry);
html_link_open(url, NULL, NULL);
html_txt(subject);
static void cgit_print_repo_page()
{
- if (chdir(cgit_query_repo) ||
- cgit_read_config(".git/info/cgit", cgit_repo_config_cb)) {
+ if (chdir(fmt("%s/%s", cgit_root, cgit_query_repo)) ||
+ cgit_read_config("info/cgit", cgit_repo_config_cb)) {
char *title = fmt("%s - %s", cgit_root_title, "Bad request");
cgit_print_docstart(title);
cgit_print_pageheader(title);
cgit_print_docend();
return;
}
-
+ setenv("GIT_DIR", fmt("%s/%s", cgit_root, cgit_query_repo), 1);
char *title = fmt("%s - %s", cgit_repo_name, cgit_repo_desc);
cgit_print_docstart(title);
cgit_print_pageheader(title);
else if (!strcmp(cgit_query_page, "log")) {
cgit_print_log(cgit_query_head, 0, 100);
} else if (!strcmp(cgit_query_page, "view")) {
- cgit_print_object(cgit_query_head);
+ cgit_print_object(cgit_query_sha1);
}
cgit_print_docend();
}
-int main(int argc, const char **argv)
+static void cgit_fill_cache(struct cacheitem *item)
{
- if (cgit_read_config("/etc/cgitrc", cgit_global_config_cb))
- die("Error reading config: %d %s", errno, strerror(errno));
-
- chdir(cgit_root);
- cgit_parse_query(getenv("QUERY_STRING"), cgit_querystring_cb);
+ htmlfd = item->fd;
+ item->st.st_mtime = time(NULL);
if (cgit_query_repo)
cgit_print_repo_page();
else
cgit_print_repolist();
+}
+
+static void cgit_refresh_cache(struct cacheitem *item)
+{
+ int i = 0;
+
+ cache_prepare(item);
+ top:
+ if (++i > cgit_max_lock_attempts) {
+ die("cgit_refresh_cache: unable to lock %s: %s",
+ item->name, strerror(errno));
+ }
+ if (!cache_exist(item)) {
+ if (!cache_lock(item)) {
+ sleep(1);
+ goto top;
+ }
+ if (!cache_exist(item))
+ cgit_fill_cache(item);
+ cache_unlock(item);
+ } else if (cache_expired(item) && cache_lock(item)) {
+ if (cache_expired(item))
+ cgit_fill_cache(item);
+ cache_unlock(item);
+ }
+}
+
+static void cgit_print_cache(struct cacheitem *item)
+{
+ static char buf[4096];
+ ssize_t i;
+
+ int fd = open(item->name, O_RDONLY);
+ if (fd<0)
+ die("Unable to open cached file %s", item->name);
+
+ while((i=read(fd, buf, sizeof(buf))) > 0)
+ write(STDOUT_FILENO, buf, i);
+
+ close(fd);
+}
+
+int main(int argc, const char **argv)
+{
+ cgit_read_config("/etc/cgitrc", cgit_global_config_cb);
+ cgit_querystring = xstrdup(getenv("QUERY_STRING"));
+ cgit_parse_query(cgit_querystring, cgit_querystring_cb);
+ cgit_refresh_cache(&cacheitem);
+ cgit_print_cache(&cacheitem);
return 0;
}
projects / ps-cgit / blobdiff