2006-12-10 21:41:14 +00:00
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/* cgit.c: cgi for the git scm
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*
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* Copyright (C) 2006 Lars Hjemli
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*
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* Licensed under GNU General Public License v2
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* (see COPYING for full license text)
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*/
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2006-12-09 14:18:17 +00:00
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#include "cgit.h"
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2006-12-10 22:50:16 +00:00
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const char cgit_version[] = CGIT_VERSION;
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const char cgit_doctype[] =
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2006-12-09 14:18:17 +00:00
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"<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\"\n"
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" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n";
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2006-12-10 22:50:16 +00:00
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const char cgit_error[] =
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2006-12-09 14:18:17 +00:00
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"<div class='error'>%s</div>";
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2006-12-10 22:50:16 +00:00
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const char cgit_lib_error[] =
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2006-12-09 14:18:17 +00:00
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"<div class='error'>%s: %s</div>";
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2006-12-10 21:31:36 +00:00
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int htmlfd = 0;
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2006-12-09 14:18:17 +00:00
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2006-12-10 21:31:36 +00:00
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char *cgit_root = "/usr/src/git";
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2006-12-09 14:18:17 +00:00
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char *cgit_root_title = "Git repository browser";
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char *cgit_css = "/cgit.css";
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char *cgit_logo = "/git-logo.png";
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char *cgit_logo_link = "http://www.kernel.org/pub/software/scm/git/docs/";
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char *cgit_virtual_root = NULL;
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2006-12-10 21:31:36 +00:00
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char *cgit_cache_root = "/var/cache/cgit";
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int cgit_cache_root_ttl = 5;
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int cgit_cache_repo_ttl = 5;
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int cgit_cache_dynamic_ttl = 5;
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int cgit_cache_static_ttl = -1;
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int cgit_cache_max_create_time = 5;
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2006-12-09 14:18:17 +00:00
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char *cgit_repo_name = NULL;
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char *cgit_repo_desc = NULL;
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char *cgit_repo_owner = NULL;
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2006-12-10 21:31:36 +00:00
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int cgit_query_has_symref = 0;
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int cgit_query_has_sha1 = 0;
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char *cgit_querystring = NULL;
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2006-12-09 14:18:17 +00:00
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char *cgit_query_repo = NULL;
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char *cgit_query_page = NULL;
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char *cgit_query_head = NULL;
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2006-12-10 21:31:36 +00:00
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char *cgit_query_sha1 = NULL;
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struct cacheitem cacheitem;
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2006-12-09 14:18:17 +00:00
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int cgit_parse_query(char *txt, configfn fn)
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{
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2006-12-10 21:31:36 +00:00
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char *t, *value = NULL, c;
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2006-12-09 14:18:17 +00:00
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if (!txt)
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return 0;
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2006-12-10 21:31:36 +00:00
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t = txt = xstrdup(txt);
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2006-12-09 14:18:17 +00:00
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while((c=*t) != '\0') {
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if (c=='=') {
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*t = '\0';
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value = t+1;
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} else if (c=='&') {
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*t = '\0';
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(*fn)(txt, value);
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txt = t+1;
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value = NULL;
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}
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t++;
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}
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if (t!=txt)
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(*fn)(txt, value);
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return 0;
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}
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void cgit_global_config_cb(const char *name, const char *value)
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{
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if (!strcmp(name, "root"))
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cgit_root = xstrdup(value);
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else if (!strcmp(name, "root-title"))
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cgit_root_title = xstrdup(value);
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else if (!strcmp(name, "css"))
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cgit_css = xstrdup(value);
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else if (!strcmp(name, "logo"))
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cgit_logo = xstrdup(value);
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else if (!strcmp(name, "logo-link"))
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cgit_logo_link = xstrdup(value);
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else if (!strcmp(name, "virtual-root"))
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cgit_virtual_root = xstrdup(value);
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}
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void cgit_repo_config_cb(const char *name, const char *value)
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{
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if (!strcmp(name, "name"))
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cgit_repo_name = xstrdup(value);
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else if (!strcmp(name, "desc"))
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cgit_repo_desc = xstrdup(value);
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else if (!strcmp(name, "owner"))
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cgit_repo_owner = xstrdup(value);
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}
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void cgit_querystring_cb(const char *name, const char *value)
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{
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if (!strcmp(name,"r"))
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cgit_query_repo = xstrdup(value);
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else if (!strcmp(name, "p"))
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cgit_query_page = xstrdup(value);
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2006-12-10 21:31:36 +00:00
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else if (!strcmp(name, "h")) {
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2006-12-09 14:18:17 +00:00
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cgit_query_head = xstrdup(value);
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2006-12-10 21:31:36 +00:00
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cgit_query_has_symref = 1;
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} else if (!strcmp(name, "id")) {
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cgit_query_sha1 = xstrdup(value);
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cgit_query_has_sha1 = 1;
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}
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2006-12-09 14:18:17 +00:00
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}
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char *cgit_repourl(const char *reponame)
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{
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if (cgit_virtual_root) {
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return fmt("%s/%s/", cgit_virtual_root, reponame);
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} else {
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return fmt("?r=%s", reponame);
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}
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}
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char *cgit_pageurl(const char *reponame, const char *pagename,
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const char *query)
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{
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if (cgit_virtual_root) {
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return fmt("%s/%s/%s/?%s", cgit_virtual_root, reponame,
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pagename, query);
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} else {
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return fmt("?r=%s&p=%s&%s", reponame, pagename, query);
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}
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}
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static int cgit_print_branch_cb(const char *refname, const unsigned char *sha1,
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int flags, void *cb_data)
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{
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struct commit *commit;
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char buf[256], *url;
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commit = lookup_commit(sha1);
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if (commit && !parse_commit(commit)){
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html("<tr><td>");
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url = cgit_pageurl(cgit_query_repo, "log",
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fmt("h=%s", refname));
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html_link_open(url, NULL, NULL);
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strncpy(buf, refname, sizeof(buf));
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html_txt(buf);
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html_link_close();
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html("</td><td>");
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pretty_print_commit(CMIT_FMT_ONELINE, commit, ~0, buf,
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sizeof(buf), 0, NULL, NULL, 0);
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html_txt(buf);
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html("</td></tr>\n");
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} else {
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html("<tr><td>");
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html_txt(buf);
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html("</td><td>");
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htmlf("*** bad ref %s", sha1_to_hex(sha1));
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html("</td></tr>\n");
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}
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return 0;
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}
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2006-12-10 21:31:36 +00:00
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/* Sun, 06 Nov 1994 08:49:37 GMT */
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static char *http_date(time_t t)
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{
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static char day[][4] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
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static char month[][4] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
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"Jul", "Aug", "Sep", "Oct", "Now", "Dec"};
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struct tm *tm = gmtime(&t);
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return fmt("%s, %02d %s %04d %02d:%02d:%02d GMT", day[tm->tm_wday],
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tm->tm_mday, month[tm->tm_mon], 1900+tm->tm_year,
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tm->tm_hour, tm->tm_min, tm->tm_sec);
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}
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static int ttl_seconds(int ttl)
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{
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if (ttl<0)
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return 60 * 60 * 24 * 365;
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else
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return ttl * 60;
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}
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2006-12-09 14:18:17 +00:00
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static void cgit_print_docstart(char *title)
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{
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html("Content-Type: text/html; charset=utf-8\n");
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2006-12-10 21:31:36 +00:00
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htmlf("Last-Modified: %s\n", http_date(cacheitem.st.st_mtime));
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htmlf("Expires: %s\n", http_date(cacheitem.st.st_mtime +
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ttl_seconds(cacheitem.ttl)));
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2006-12-09 14:18:17 +00:00
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html("\n");
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html(cgit_doctype);
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html("<html>\n");
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html("<head>\n");
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html("<title>");
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html_txt(title);
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html("</title>\n");
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2006-12-10 22:50:16 +00:00
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htmlf("<meta name='generator' content='cgit v%s'/>\n", cgit_version);
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2006-12-09 14:18:17 +00:00
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html("<link rel='stylesheet' type='text/css' href='");
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html_attr(cgit_css);
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html("'/>\n");
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html("</head>\n");
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html("<body>\n");
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}
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static void cgit_print_docend()
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{
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html("</body>\n</html>\n");
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}
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static void cgit_print_pageheader(char *title)
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{
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html("<div id='header'>");
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htmlf("<a href='%s'>", cgit_logo_link);
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htmlf("<img id='logo' src='%s'/>\n", cgit_logo);
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htmlf("</a>");
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html_txt(title);
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html("</div>");
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}
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static void cgit_print_repolist()
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{
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DIR *d;
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struct dirent *de;
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struct stat st;
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char *name;
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2006-12-10 21:31:36 +00:00
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chdir(cgit_root);
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2006-12-09 14:18:17 +00:00
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cgit_print_docstart(cgit_root_title);
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cgit_print_pageheader(cgit_root_title);
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if (!(d = opendir("."))) {
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htmlf(cgit_lib_error, "Unable to scan repository directory",
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strerror(errno));
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cgit_print_docend();
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return;
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}
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html("<h2>Repositories</h2>\n");
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html("<table class='list'>");
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html("<tr><th>Name</th><th>Description</th><th>Owner</th></tr>\n");
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while ((de = readdir(d)) != NULL) {
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if (de->d_name[0] == '.')
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continue;
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if (stat(de->d_name, &st) < 0)
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continue;
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if (!S_ISDIR(st.st_mode))
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continue;
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cgit_repo_name = cgit_repo_desc = cgit_repo_owner = NULL;
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2006-12-10 21:31:36 +00:00
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name = fmt("%s/info/cgit", de->d_name);
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2006-12-09 14:18:17 +00:00
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if (cgit_read_config(name, cgit_repo_config_cb))
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continue;
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html("<tr><td>");
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html_link_open(cgit_repourl(de->d_name), NULL, NULL);
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html_txt(cgit_repo_name);
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html_link_close();
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html("</td><td>");
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html_txt(cgit_repo_desc);
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html("</td><td>");
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html_txt(cgit_repo_owner);
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html("</td></tr>\n");
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}
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closedir(d);
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html("</table>");
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cgit_print_docend();
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}
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static void cgit_print_branches()
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{
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html("<table class='list'>");
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html("<tr><th>Branch name</th><th>Head commit</th></tr>\n");
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for_each_branch_ref(cgit_print_branch_cb, NULL);
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html("</table>");
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}
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static int get_one_line(char *txt)
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{
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char *t;
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for(t=txt; *t != '\n' && t != '\0'; t++)
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;
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*t = '\0';
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return t-txt-1;
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}
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static void cgit_print_commit_shortlog(struct commit *commit)
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{
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char *h, *t, *p;
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char *tree = NULL, *author = NULL, *subject = NULL;
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int len;
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time_t sec;
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struct tm *time;
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char buf[32];
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h = t = commit->buffer;
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if (strncmp(h, "tree ", 5))
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die("Bad commit format: %s",
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sha1_to_hex(commit->object.sha1));
|
|
|
|
|
|
|
|
|
|
len = get_one_line(h);
|
|
|
|
|
tree = h+5;
|
|
|
|
|
h += len + 2;
|
|
|
|
|
|
|
|
|
|
while (!strncmp(h, "parent ", 7))
|
|
|
|
|
h += get_one_line(h) + 2;
|
|
|
|
|
|
|
|
|
|
if (!strncmp(h, "author ", 7)) {
|
|
|
|
|
author = h+7;
|
|
|
|
|
h += get_one_line(h) + 2;
|
|
|
|
|
t = author;
|
|
|
|
|
while(t!=h && *t!='<')
|
|
|
|
|
t++;
|
|
|
|
|
*t='\0';
|
|
|
|
|
p = t;
|
|
|
|
|
while(--t!=author && *t==' ')
|
|
|
|
|
*t='\0';
|
|
|
|
|
while(++p!=h && *p!='>')
|
|
|
|
|
;
|
|
|
|
|
while(++p!=h && !isdigit(*p))
|
|
|
|
|
;
|
|
|
|
|
|
|
|
|
|
t = p;
|
|
|
|
|
while(++p && isdigit(*p))
|
|
|
|
|
;
|
|
|
|
|
*p = '\0';
|
|
|
|
|
sec = atoi(t);
|
|
|
|
|
time = gmtime(&sec);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
while((len = get_one_line(h)) > 0)
|
|
|
|
|
h += len+2;
|
|
|
|
|
|
|
|
|
|
h++;
|
|
|
|
|
len = get_one_line(h);
|
|
|
|
|
|
|
|
|
|
subject = h;
|
|
|
|
|
|
|
|
|
|
html("<tr><td>");
|
|
|
|
|
strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", time);
|
|
|
|
|
html_txt(buf);
|
|
|
|
|
html("</td><td>");
|
2006-12-10 21:31:36 +00:00
|
|
|
char *qry = fmt("id=%s", sha1_to_hex(commit->object.sha1));
|
2006-12-09 14:18:17 +00:00
|
|
|
char *url = cgit_pageurl(cgit_query_repo, "view", qry);
|
|
|
|
|
html_link_open(url, NULL, NULL);
|
|
|
|
|
html_txt(subject);
|
|
|
|
|
html_link_close();
|
|
|
|
|
html("</td><td>");
|
|
|
|
|
html_txt(author);
|
|
|
|
|
html("</td></tr>\n");
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void cgit_print_log(const char *tip, int ofs, int cnt)
|
|
|
|
|
{
|
|
|
|
|
struct rev_info rev;
|
|
|
|
|
struct commit *commit;
|
|
|
|
|
const char *argv[2] = {NULL, tip};
|
|
|
|
|
int n = 0;
|
|
|
|
|
|
|
|
|
|
init_revisions(&rev, NULL);
|
|
|
|
|
rev.abbrev = DEFAULT_ABBREV;
|
|
|
|
|
rev.commit_format = CMIT_FMT_DEFAULT;
|
|
|
|
|
rev.verbose_header = 1;
|
|
|
|
|
rev.show_root_diff = 0;
|
|
|
|
|
setup_revisions(2, argv, &rev, NULL);
|
|
|
|
|
prepare_revision_walk(&rev);
|
|
|
|
|
|
|
|
|
|
html("<h2>Log</h2>");
|
|
|
|
|
html("<table class='list'>");
|
|
|
|
|
html("<tr><th>Date</th><th>Message</th><th>Author</th></tr>\n");
|
|
|
|
|
while ((commit = get_revision(&rev)) != NULL && n++ < 100) {
|
|
|
|
|
cgit_print_commit_shortlog(commit);
|
|
|
|
|
free(commit->buffer);
|
|
|
|
|
commit->buffer = NULL;
|
|
|
|
|
free_commit_list(commit->parents);
|
|
|
|
|
commit->parents = NULL;
|
|
|
|
|
}
|
|
|
|
|
html("</table>\n");
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void cgit_print_repo_summary()
|
|
|
|
|
{
|
|
|
|
|
html("<h2>");
|
|
|
|
|
html_txt("Repo summary page");
|
|
|
|
|
html("</h2>");
|
|
|
|
|
cgit_print_branches();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void cgit_print_object(char *hex)
|
|
|
|
|
{
|
|
|
|
|
unsigned char sha1[20];
|
|
|
|
|
//struct object *object;
|
|
|
|
|
char type[20];
|
|
|
|
|
unsigned char *buf;
|
|
|
|
|
unsigned long size;
|
|
|
|
|
|
|
|
|
|
if (get_sha1_hex(hex, sha1)){
|
|
|
|
|
htmlf(cgit_error, "Bad hex value");
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (sha1_object_info(sha1, type, NULL)){
|
|
|
|
|
htmlf(cgit_error, "Bad object name");
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
buf = read_sha1_file(sha1, type, &size);
|
|
|
|
|
if (!buf) {
|
|
|
|
|
htmlf(cgit_error, "Error reading object");
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
buf[size] = '\0';
|
|
|
|
|
html("<h2>Object view</h2>");
|
|
|
|
|
htmlf("sha1=%s<br/>type=%s<br/>size=%i<br/>", hex, type, size);
|
|
|
|
|
html("<pre>");
|
|
|
|
|
html_txt(buf);
|
|
|
|
|
html("</pre>");
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void cgit_print_repo_page()
|
|
|
|
|
{
|
2006-12-10 21:31:36 +00:00
|
|
|
if (chdir(fmt("%s/%s", cgit_root, cgit_query_repo)) ||
|
|
|
|
|
cgit_read_config("info/cgit", cgit_repo_config_cb)) {
|
2006-12-09 14:18:17 +00:00
|
|
|
char *title = fmt("%s - %s", cgit_root_title, "Bad request");
|
|
|
|
|
cgit_print_docstart(title);
|
|
|
|
|
cgit_print_pageheader(title);
|
|
|
|
|
htmlf(cgit_lib_error, "Unable to scan repository",
|
|
|
|
|
strerror(errno));
|
|
|
|
|
cgit_print_docend();
|
|
|
|
|
return;
|
|
|
|
|
}
|
2006-12-10 21:31:36 +00:00
|
|
|
setenv("GIT_DIR", fmt("%s/%s", cgit_root, cgit_query_repo), 1);
|
2006-12-09 14:18:17 +00:00
|
|
|
char *title = fmt("%s - %s", cgit_repo_name, cgit_repo_desc);
|
|
|
|
|
cgit_print_docstart(title);
|
|
|
|
|
cgit_print_pageheader(title);
|
|
|
|
|
if (!cgit_query_page)
|
|
|
|
|
cgit_print_repo_summary();
|
|
|
|
|
else if (!strcmp(cgit_query_page, "log")) {
|
|
|
|
|
cgit_print_log(cgit_query_head, 0, 100);
|
|
|
|
|
} else if (!strcmp(cgit_query_page, "view")) {
|
2006-12-10 21:31:36 +00:00
|
|
|
cgit_print_object(cgit_query_sha1);
|
2006-12-09 14:18:17 +00:00
|
|
|
}
|
|
|
|
|
cgit_print_docend();
|
|
|
|
|
}
|
|
|
|
|
|
2006-12-10 21:31:36 +00:00
|
|
|
static void cgit_fill_cache(struct cacheitem *item)
|
2006-12-09 14:18:17 +00:00
|
|
|
{
|
2006-12-10 21:31:36 +00:00
|
|
|
htmlfd = item->fd;
|
|
|
|
|
item->st.st_mtime = time(NULL);
|
2006-12-09 14:18:17 +00:00
|
|
|
if (cgit_query_repo)
|
|
|
|
|
cgit_print_repo_page();
|
|
|
|
|
else
|
|
|
|
|
cgit_print_repolist();
|
2006-12-10 21:31:36 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void cgit_refresh_cache(struct cacheitem *item)
|
|
|
|
|
{
|
|
|
|
|
top:
|
|
|
|
|
if (!cache_lookup(item)) {
|
|
|
|
|
if (cache_lock(item)) {
|
|
|
|
|
cgit_fill_cache(item);
|
|
|
|
|
cache_unlock(item);
|
|
|
|
|
} else {
|
|
|
|
|
sched_yield();
|
|
|
|
|
goto top;
|
|
|
|
|
}
|
|
|
|
|
} else if (cache_expired(item)) {
|
|
|
|
|
if (cache_lock(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);
|
2006-12-09 14:18:17 +00:00
|
|
|
return 0;
|
|
|
|
|
}
|
