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authorLars Hjemli <hjemli@gmail.com>2008-09-14 22:07:12 +0000
committerLars Hjemli <hjemli@gmail.com>2008-09-15 21:35:27 +0000
commit93397a765b9d9af11b7d10c114406e303ea4fb1c (patch)
treefa40c0c8df7549525123359bf817598ae7e9f43d /scan-tree.c
parente154edd8078020d6eba41b448afade0a68617f35 (diff)
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Add support for --scan-tree=<path> option to cgit
This option makes cgit scan a directory tree looking for git repositories, generating suitable definitions for a cgitrc file on stdout. Signed-off-by: Lars Hjemli <hjemli@gmail.com>
Diffstat (limited to 'scan-tree.c')
-rw-r--r--scan-tree.c136
1 files changed, 136 insertions, 0 deletions
diff --git a/scan-tree.c b/scan-tree.c
new file mode 100644
index 0000000..cdafb02
--- /dev/null
+++ b/scan-tree.c
@@ -0,0 +1,136 @@
+#include "cgit.h"
+#include "html.h"
+
+#define MAX_PATH 4096
+
+/* return 1 if path contains a objects/ directory and a HEAD file */
+static int is_git_dir(const char *path)
+{
+ struct stat st;
+ static char buf[MAX_PATH];
+
+ if (snprintf(buf, MAX_PATH, "%s/objects", path) >= MAX_PATH) {
+ fprintf(stderr, "Insanely long path: %s\n", path);
+ return 0;
+ }
+ if (stat(buf, &st)) {
+ if (errno != ENOENT)
+ fprintf(stderr, "Error checking path %s: %s (%d)\n",
+ path, strerror(errno), errno);
+ return 0;
+ }
+ if (!S_ISDIR(st.st_mode))
+ return 0;
+
+ sprintf(buf, "%s/HEAD", path);
+ if (stat(buf, &st)) {
+ if (errno != ENOENT)
+ fprintf(stderr, "Error checking path %s: %s (%d)\n",
+ path, strerror(errno), errno);
+ return 0;
+ }
+ if (!S_ISREG(st.st_mode))
+ return 0;
+
+ return 1;
+}
+
+char *readfile(const char *path)
+{
+ FILE *f;
+ static char buf[MAX_PATH];
+
+ if (!(f = fopen(path, "r")))
+ return NULL;
+ fgets(buf, MAX_PATH, f);
+ fclose(f);
+ return buf;
+}
+
+static void add_repo(const char *base, const char *path)
+{
+ struct cgit_repo *repo;
+ struct stat st;
+ struct passwd *pwd;
+ char *p;
+
+ if (stat(path, &st)) {
+ fprintf(stderr, "Error accessing %s: %s (%d)\n",
+ path, strerror(errno), errno);
+ return;
+ }
+ if ((pwd = getpwuid(st.st_uid)) == NULL) {
+ fprintf(stderr, "Error reading owner-info for %s: %s (%d)\n",
+ path, strerror(errno), errno);
+ return;
+ }
+ if (base == path)
+ p = fmt("%s", path);
+ else
+ p = fmt("%s", path + strlen(base) + 1);
+
+ if (!strcmp(p + strlen(p) - 5, "/.git"))
+ p[strlen(p) - 5] = '\0';
+
+ repo = cgit_add_repo(xstrdup(p));
+ repo->name = repo->url;
+ repo->path = xstrdup(path);
+ repo->owner = (pwd ? xstrdup(pwd->pw_gecos ? pwd->pw_gecos : pwd->pw_name) : "");
+
+ p = fmt("%s/description", path);
+ if (!stat(p, &st))
+ repo->desc = xstrdup(readfile(p));
+
+ p = fmt("%s/README.html", path);
+ if (!stat(p, &st))
+ repo->readme = "README.html";
+}
+
+static void scan_path(const char *base, const char *path)
+{
+ DIR *dir;
+ struct dirent *ent;
+ char *buf;
+ struct stat st;
+
+ if (is_git_dir(path)) {
+ add_repo(base, path);
+ return;
+ }
+ dir = opendir(path);
+ if (!dir) {
+ fprintf(stderr, "Error opening directory %s: %s (%d)\n",
+ path, strerror(errno), errno);
+ return;
+ }
+ while((ent = readdir(dir)) != NULL) {
+ if (ent->d_name[0] == '.') {
+ if (ent->d_name[1] == '\0')
+ continue;
+ if (ent->d_name[1] == '.' && ent->d_name[2] == '\0')
+ continue;
+ }
+ buf = malloc(strlen(path) + strlen(ent->d_name) + 2);
+ if (!buf) {
+ fprintf(stderr, "Alloc error on %s: %s (%d)\n",
+ path, strerror(errno), errno);
+ exit(1);
+ }
+ sprintf(buf, "%s/%s", path, ent->d_name);
+ if (stat(buf, &st)) {
+ fprintf(stderr, "Error checking path %s: %s (%d)\n",
+ buf, strerror(errno), errno);
+ free(buf);
+ continue;
+ }
+ if (S_ISDIR(st.st_mode))
+ scan_path(base, buf);
+ free(buf);
+ }
+ closedir(dir);
+}
+
+void scan_tree(const char *path)
+{
+ scan_path(path, path);
+}