-#include "cgit.h"
-
-static 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";
+/* 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)
+ */
-static const char cgit_error[] =
-"<div class='error'>%s</div>";
+#include "cgit.h"
-static const char cgit_lib_error[] =
-"<div class='error'>%s: %s</div>";
+const char cgit_version[] = CGIT_VERSION;
+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;
-int cgit_parse_query(char *txt, configfn fn)
-{
- char *t = txt, *value = NULL, c;
-
- if (!txt)
- return 0;
-
- while((c=*t) != '\0') {
- if (c=='=') {
- *t = '\0';
- value = t+1;
- } else if (c=='&') {
- *t = '\0';
- (*fn)(txt, value);
- txt = t+1;
- value = NULL;
- }
- t++;
- }
- if (t!=txt)
- (*fn)(txt, value);
- return 0;
-}
+struct cacheitem cacheitem;
void cgit_global_config_cb(const char *name, const char *value)
{
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);
-}
-
-char *cgit_repourl(const char *reponame)
-{
- if (cgit_virtual_root) {
- return fmt("%s/%s/", cgit_virtual_root, reponame);
- } else {
- return fmt("?r=%s", reponame);
- }
-}
-
-char *cgit_pageurl(const char *reponame, const char *pagename,
- const char *query)
-{
- if (cgit_virtual_root) {
- return fmt("%s/%s/%s/?%s", cgit_virtual_root, reponame,
- pagename, query);
- } else {
- return fmt("?r=%s&p=%s&%s", reponame, pagename, query);
+ cgit_query_has_symref = 1;
+ } else if (!strcmp(name, "id")) {
+ cgit_query_sha1 = xstrdup(value);
+ cgit_query_has_sha1 = 1;
}
}
return 0;
}
-static void cgit_print_docstart(char *title)
-{
- html("Content-Type: text/html; charset=utf-8\n");
- html("\n");
- html(cgit_doctype);
- html("<html>\n");
- html("<head>\n");
- html("<title>");
- html_txt(title);
- html("</title>\n");
- html("<link rel='stylesheet' type='text/css' href='");
- html_attr(cgit_css);
- html("'/>\n");
- html("</head>\n");
- html("<body>\n");
-}
-
-static void cgit_print_docend()
-{
- html("</body>\n</html>\n");
-}
-
-static void cgit_print_pageheader(char *title)
-{
- html("<div id='header'>");
- htmlf("<a href='%s'>", cgit_logo_link);
- htmlf("<img id='logo' src='%s'/>\n", cgit_logo);
- htmlf("</a>");
- html_txt(title);
- html("</div>");
-}
-
-static void cgit_print_repolist()
-{
- DIR *d;
- struct dirent *de;
- struct stat st;
- char *name;
-
- cgit_print_docstart(cgit_root_title);
- cgit_print_pageheader(cgit_root_title);
-
- if (!(d = opendir("."))) {
- htmlf(cgit_lib_error, "Unable to scan repository directory",
- strerror(errno));
- cgit_print_docend();
- return;
- }
-
- html("<h2>Repositories</h2>\n");
- html("<table class='list'>");
- html("<tr><th>Name</th><th>Description</th><th>Owner</th></tr>\n");
- while ((de = readdir(d)) != NULL) {
- if (de->d_name[0] == '.')
- continue;
- if (stat(de->d_name, &st) < 0)
- continue;
- if (!S_ISDIR(st.st_mode))
- continue;
-
- cgit_repo_name = cgit_repo_desc = cgit_repo_owner = NULL;
- name = fmt("%s/.git/info/cgit", de->d_name);
- if (cgit_read_config(name, cgit_repo_config_cb))
- continue;
-
- html("<tr><td>");
- html_link_open(cgit_repourl(de->d_name), NULL, NULL);
- html_txt(cgit_repo_name);
- html_link_close();
- html("</td><td>");
- html_txt(cgit_repo_desc);
- html("</td><td>");
- html_txt(cgit_repo_owner);
- html("</td></tr>\n");
- }
- closedir(d);
- html("</table>");
- cgit_print_docend();
-}
-
static void cgit_print_branches()
{
html("<table class='list'>");
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);
unsigned long size;
if (get_sha1_hex(hex, sha1)){
- htmlf(cgit_error, "Bad hex value");
+ cgit_print_error(fmt("Bad hex value: %s", hex));
return;
}
if (sha1_object_info(sha1, type, NULL)){
- htmlf(cgit_error, "Bad object name");
+ cgit_print_error("Bad object name");
return;
}
buf = read_sha1_file(sha1, type, &size);
if (!buf) {
- htmlf(cgit_error, "Error reading object");
+ cgit_print_error("Error reading object");
return;
}
html("</pre>");
}
-static void cgit_print_repo_page()
+static void cgit_print_repo_page(struct cacheitem *item)
{
- 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_docstart(title, item);
cgit_print_pageheader(title);
- htmlf(cgit_lib_error, "Unable to scan repository",
- strerror(errno));
+ cgit_print_error(fmt("Unable to scan repository: %s",
+ strerror(errno)));
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_docstart(title, item);
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")) {
- 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();
+ cgit_print_repo_page(item);
else
- cgit_print_repolist();
+ cgit_print_repolist(item);
+}
+
+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