X-Git-Url: https://gitweb.ps.run/ps-cgit/blobdiff_plain/1418034e642fee67c981b31e4c3eb6e8ae14e303..23734c5a2b607dca2d634cafdc63202a687f26d3:/cgit.c

diff --git a/cgit.c b/cgit.c
index 300fe46..9535abc 100644
--- a/cgit.c
+++ b/cgit.c
@@ -10,215 +10,26 @@
 
 const char cgit_version[] = CGIT_VERSION;
 
-int htmlfd = 0;
-
-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;
-
-void cgit_global_config_cb(const char *name, const char *value)
-{
-	if (!strcmp(name, "root"))
-		cgit_root = xstrdup(value);
-	else if (!strcmp(name, "root-title"))
-		cgit_root_title = xstrdup(value);
-	else if (!strcmp(name, "css"))
-		cgit_css = xstrdup(value);
-	else if (!strcmp(name, "logo"))
-		cgit_logo = xstrdup(value);
-	else if (!strcmp(name, "logo-link"))
-		cgit_logo_link = xstrdup(value);
-	else if (!strcmp(name, "virtual-root"))
-		cgit_virtual_root = xstrdup(value);
-}
-
-void cgit_repo_config_cb(const char *name, const char *value)
-{
-	if (!strcmp(name, "name"))
-		cgit_repo_name = xstrdup(value);
-	else if (!strcmp(name, "desc"))
-		cgit_repo_desc = xstrdup(value);
-	else if (!strcmp(name, "owner"))
-		cgit_repo_owner = xstrdup(value);
-}
-
-void cgit_querystring_cb(const char *name, const char *value)
-{
-	if (!strcmp(name,"r"))
-		cgit_query_repo = xstrdup(value);
-	else if (!strcmp(name, "p"))
-		cgit_query_page = xstrdup(value);
-	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;
-	}
-}
-
-static int get_one_line(char *txt)
-{
-	char *t;
-
-	for(t=txt; *t != '\n' && t != '\0'; t++)
-		;
-	*t = '\0';
-	return t-txt-1;
-}
-
-static void cgit_print_commit_shortlog(struct commit *commit)
-{
-	char *h, *t, *p; 
-	char *tree = NULL, *author = NULL, *subject = NULL;
-	int len;
-	time_t sec;
-	struct tm *time;
-	char buf[32];
-
-	h = t = commit->buffer;
-	
-	if (strncmp(h, "tree ", 5))
-		die("Bad commit format: %s", 
-		    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>");
-	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);
-	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)
+static void cgit_prepare_cache(struct cacheitem *item)
 {
-	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;
+	if (!cgit_query_repo) {
+		item->name = xstrdup(fmt("%s/index.html", cgit_cache_root));
+		item->ttl = cgit_cache_root_ttl;
+	} else if (!cgit_query_page) {
+		item->name = xstrdup(fmt("%s/%s/index.html", cgit_cache_root, 
+			   cgit_query_repo));
+		item->ttl = cgit_cache_repo_ttl;
+	} else {
+		item->name = xstrdup(fmt("%s/%s/%s/%s.html", cgit_cache_root, 
+			   cgit_query_repo, cgit_query_page, 
+			   cache_safe_filename(cgit_querystring)));
+		if (cgit_query_has_symref)
+			item->ttl = cgit_cache_dynamic_ttl;
+		else if (cgit_query_has_sha1)
+			item->ttl = cgit_cache_static_ttl;
+		else
+			item->ttl = cgit_cache_repo_ttl;
 	}
-	html("</table>\n");
-}
-
-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)){
-		cgit_print_error(fmt("Bad hex value: %s", hex));
-	        return;
-	}
-
-	if (sha1_object_info(sha1, type, NULL)){
-		cgit_print_error("Bad object name");
-		return;
-	}
-
-	buf = read_sha1_file(sha1, type, &size);
-	if (!buf) {
-		cgit_print_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(struct cacheitem *item)
@@ -227,7 +38,7 @@ static void cgit_print_repo_page(struct cacheitem *item)
 	    cgit_read_config("info/cgit", cgit_repo_config_cb)) {
 		char *title = fmt("%s - %s", cgit_root_title, "Bad request");
 		cgit_print_docstart(title, item);
-		cgit_print_pageheader(title);
+		cgit_print_pageheader(title, 0);
 		cgit_print_error(fmt("Unable to scan repository: %s",
 				     strerror(errno)));
 		cgit_print_docend();
@@ -235,33 +46,45 @@ static void cgit_print_repo_page(struct cacheitem *item)
 	}
 	setenv("GIT_DIR", fmt("%s/%s", cgit_root, cgit_query_repo), 1);
 	char *title = fmt("%s - %s", cgit_repo_name, cgit_repo_desc);
+	int show_search = 0;
+	if (cgit_query_page && !strcmp(cgit_query_page, "log"))
+		show_search = 1;
 	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);
+	cgit_print_pageheader(title, show_search);
+	if (!cgit_query_page) {
+		cgit_print_summary();
+	} else if (!strcmp(cgit_query_page, "log")) {
+		cgit_print_log(cgit_query_head, cgit_query_ofs, 100, cgit_query_search);
+	} else if (!strcmp(cgit_query_page, "tree")) {
+		cgit_print_tree(cgit_query_sha1, cgit_query_path);
+	} else if (!strcmp(cgit_query_page, "commit")) {
+		cgit_print_commit(cgit_query_sha1);
 	} else if (!strcmp(cgit_query_page, "view")) {
-		cgit_print_object(cgit_query_sha1);
+		cgit_print_view(cgit_query_sha1);
+	} else if (!strcmp(cgit_query_page, "diff")) {
+		cgit_print_diff(cgit_query_sha1, cgit_query_sha2);
 	}
 	cgit_print_docend();
 }
 
 static void cgit_fill_cache(struct cacheitem *item)
 {
+	static char buf[PATH_MAX];
+
+	getcwd(buf, sizeof(buf));
 	htmlfd = item->fd;
 	item->st.st_mtime = time(NULL);
 	if (cgit_query_repo)
 		cgit_print_repo_page(item);
 	else
 		cgit_print_repolist(item);
+	chdir(buf);
 }
 
-static void cgit_refresh_cache(struct cacheitem *item)
+static void cgit_check_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",
@@ -272,13 +95,19 @@ static void cgit_refresh_cache(struct cacheitem *item)
 			sleep(1);
 			goto top;
 		}
-		if (!cache_exist(item))
+		if (!cache_exist(item)) {
 			cgit_fill_cache(item);
-		cache_unlock(item);
+			cache_unlock(item);
+		} else {
+			cache_cancel_lock(item);
+		}
 	} else if (cache_expired(item) && cache_lock(item)) {
-		if (cache_expired(item))
+		if (cache_expired(item)) {
 			cgit_fill_cache(item);
-		cache_unlock(item);
+			cache_unlock(item);
+		} else {
+			cache_cancel_lock(item);
+		}
 	}
 }
 
@@ -297,12 +126,60 @@ static void cgit_print_cache(struct cacheitem *item)
 	close(fd);
 }
 
+static void cgit_parse_args(int argc, const char **argv)
+{
+	int i;
+
+	for (i = 1; i < argc; i++) {
+		if (!strncmp(argv[i], "--root=", 7)) {
+			cgit_root = xstrdup(argv[i]+7);
+		}
+		if (!strncmp(argv[i], "--cache=", 8)) {
+			cgit_cache_root = xstrdup(argv[i]+8);
+		}
+		if (!strcmp(argv[i], "--nocache")) {
+			cgit_nocache = 1;
+		}
+		if (!strncmp(argv[i], "--query=", 8)) {
+			cgit_querystring = xstrdup(argv[i]+8);
+		}
+		if (!strncmp(argv[i], "--repo=", 7)) {
+			cgit_query_repo = xstrdup(argv[i]+7);
+		}
+		if (!strncmp(argv[i], "--page=", 7)) {
+			cgit_query_page = xstrdup(argv[i]+7);
+		}
+		if (!strncmp(argv[i], "--head=", 7)) {
+			cgit_query_head = xstrdup(argv[i]+7);
+			cgit_query_has_symref = 1;
+		}
+		if (!strncmp(argv[i], "--sha1=", 7)) {
+			cgit_query_sha1 = xstrdup(argv[i]+7);
+			cgit_query_has_sha1 = 1;
+		}
+		if (!strncmp(argv[i], "--ofs=", 6)) {
+			cgit_query_ofs = atoi(argv[i]+6);
+		}
+	}
+}
+
 int main(int argc, const char **argv)
 {
+	struct cacheitem item;
+
 	cgit_read_config("/etc/cgitrc", cgit_global_config_cb);
-	cgit_querystring = xstrdup(getenv("QUERY_STRING"));
+	if (getenv("QUERY_STRING"))
+		cgit_querystring = xstrdup(getenv("QUERY_STRING"));
+	cgit_parse_args(argc, argv);
 	cgit_parse_query(cgit_querystring, cgit_querystring_cb);
-	cgit_refresh_cache(&cacheitem);
-	cgit_print_cache(&cacheitem);
+
+	cgit_prepare_cache(&item);
+	if (cgit_nocache) {
+		item.fd = STDOUT_FILENO;
+		cgit_fill_cache(&item);
+	} else {
+		cgit_check_cache(&item);
+		cgit_print_cache(&item);
+	}
 	return 0;
 }