1#include "cgit.h"
  2#include "html.h"
  3
  4#define MAX_PATH 4096
  5
  6/* return 1 if path contains a objects/ directory and a HEAD file */
  7static int is_git_dir(const char *path)
  8{
  9	struct stat st;
 10	static char buf[MAX_PATH];
 11
 12	if (snprintf(buf, MAX_PATH, "%s/objects", path) >= MAX_PATH) {
 13		fprintf(stderr, "Insanely long path: %s\n", path);
 14		return 0;
 15	}
 16	if (stat(buf, &st)) {
 17		if (errno != ENOENT)
 18			fprintf(stderr, "Error checking path %s: %s (%d)\n",
 19				path, strerror(errno), errno);
 20		return 0;
 21	}
 22	if (!S_ISDIR(st.st_mode))
 23		return 0;
 24
 25	sprintf(buf, "%s/HEAD", path);
 26	if (stat(buf, &st)) {
 27		if (errno != ENOENT)
 28			fprintf(stderr, "Error checking path %s: %s (%d)\n",
 29				path, strerror(errno), errno);
 30		return 0;
 31	}
 32	if (!S_ISREG(st.st_mode))
 33		return 0;
 34
 35	return 1;
 36}
 37
 38char *readfile(const char *path)
 39{
 40	FILE *f;
 41	static char buf[MAX_PATH];
 42
 43	if (!(f = fopen(path, "r")))
 44		return NULL;
 45	fgets(buf, MAX_PATH, f);
 46	fclose(f);
 47	return buf;
 48}
 49
 50static void add_repo(const char *base, const char *path)
 51{
 52	struct cgit_repo *repo;
 53	struct stat st;
 54	struct passwd *pwd;
 55	char *p;
 56
 57	if (stat(path, &st)) {
 58		fprintf(stderr, "Error accessing %s: %s (%d)\n",
 59			path, strerror(errno), errno);
 60		return;
 61	}
 62	if ((pwd = getpwuid(st.st_uid)) == NULL) {
 63		fprintf(stderr, "Error reading owner-info for %s: %s (%d)\n",
 64			path, strerror(errno), errno);
 65		return;
 66	}
 67	if (base == path)
 68		p = fmt("%s", path);
 69	else
 70		p = fmt("%s", path + strlen(base) + 1);
 71
 72	if (!strcmp(p + strlen(p) - 5, "/.git"))
 73		p[strlen(p) - 5] = '\0';
 74
 75	repo = cgit_add_repo(xstrdup(p));
 76	repo->name = repo->url;
 77	repo->path = xstrdup(path);
 78	repo->owner = (pwd ? xstrdup(pwd->pw_gecos ? pwd->pw_gecos : pwd->pw_name) : "");
 79
 80	p = fmt("%s/description", path);
 81	if (!stat(p, &st))
 82		repo->desc = xstrdup(readfile(p));
 83
 84	p = fmt("%s/README.html", path);
 85	if (!stat(p, &st))
 86		repo->readme = "README.html";
 87}
 88
 89static void scan_path(const char *base, const char *path)
 90{
 91	DIR *dir;
 92	struct dirent *ent;
 93	char *buf;
 94	struct stat st;
 95
 96	if (is_git_dir(path)) {
 97		add_repo(base, path);
 98		return;
 99	}
100	dir = opendir(path);
101	if (!dir) {
102		fprintf(stderr, "Error opening directory %s: %s (%d)\n",
103			path, strerror(errno), errno);
104		return;
105	}
106	while((ent = readdir(dir)) != NULL) {
107		if (ent->d_name[0] == '.') {
108			if (ent->d_name[1] == '\0')
109				continue;
110			if (ent->d_name[1] == '.' && ent->d_name[2] == '\0')
111				continue;
112		}
113		buf = malloc(strlen(path) + strlen(ent->d_name) + 2);
114		if (!buf) {
115			fprintf(stderr, "Alloc error on %s: %s (%d)\n",
116				path, strerror(errno), errno);
117			exit(1);
118		}
119		sprintf(buf, "%s/%s", path, ent->d_name);
120		if (stat(buf, &st)) {
121			fprintf(stderr, "Error checking path %s: %s (%d)\n",
122				buf, strerror(errno), errno);
123			free(buf);
124			continue;
125		}
126		if (S_ISDIR(st.st_mode))
127			scan_path(base, buf);
128		free(buf);
129	}
130	closedir(dir);
131}
132
133void scan_tree(const char *path)
134{
135	scan_path(path, path);
136}