1#include "cgit.h"
  2#include "configfile.h"
  3#include "html.h"
  4
  5#define MAX_PATH 4096
  6
  7/* return 1 if path contains a objects/ directory and a HEAD file */
  8static int is_git_dir(const char *path)
  9{
 10	struct stat st;
 11	static char buf[MAX_PATH];
 12
 13	if (snprintf(buf, MAX_PATH, "%s/objects", path) >= MAX_PATH) {
 14		fprintf(stderr, "Insanely long path: %s\n", path);
 15		return 0;
 16	}
 17	if (stat(buf, &st)) {
 18		if (errno != ENOENT)
 19			fprintf(stderr, "Error checking path %s: %s (%d)\n",
 20				path, strerror(errno), errno);
 21		return 0;
 22	}
 23	if (!S_ISDIR(st.st_mode))
 24		return 0;
 25
 26	sprintf(buf, "%s/HEAD", path);
 27	if (stat(buf, &st)) {
 28		if (errno != ENOENT)
 29			fprintf(stderr, "Error checking path %s: %s (%d)\n",
 30				path, strerror(errno), errno);
 31		return 0;
 32	}
 33	if (!S_ISREG(st.st_mode))
 34		return 0;
 35
 36	return 1;
 37}
 38
 39struct cgit_repo *repo;
 40repo_config_fn config_fn;
 41
 42static void repo_config(const char *name, const char *value)
 43{
 44	config_fn(repo, name, value);
 45}
 46
 47static void add_repo(const char *base, const char *path, repo_config_fn fn)
 48{
 49	struct stat st;
 50	struct passwd *pwd;
 51	char *p;
 52	size_t size;
 53
 54	if (stat(path, &st)) {
 55		fprintf(stderr, "Error accessing %s: %s (%d)\n",
 56			path, strerror(errno), errno);
 57		return;
 58	}
 59	if ((pwd = getpwuid(st.st_uid)) == NULL) {
 60		fprintf(stderr, "Error reading owner-info for %s: %s (%d)\n",
 61			path, strerror(errno), errno);
 62		return;
 63	}
 64	if (base == path)
 65		p = fmt("%s", path);
 66	else
 67		p = fmt("%s", path + strlen(base) + 1);
 68
 69	if (!strcmp(p + strlen(p) - 5, "/.git"))
 70		p[strlen(p) - 5] = '\0';
 71
 72	repo = cgit_add_repo(xstrdup(p));
 73	repo->name = repo->url;
 74	repo->path = xstrdup(path);
 75	p = (pwd && pwd->pw_gecos) ? strchr(pwd->pw_gecos, ',') : NULL;
 76	if (p)
 77		*p = '\0';
 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		readfile(p, &repo->desc, &size);
 83
 84	p = fmt("%s/README.html", path);
 85	if (!stat(p, &st))
 86		repo->readme = "README.html";
 87
 88	p = fmt("%s/cgitrc", path);
 89	if (!stat(p, &st)) {
 90		config_fn = fn;
 91		parse_configfile(xstrdup(p), &repo_config);
 92	}
 93}
 94
 95static void scan_path(const char *base, const char *path, repo_config_fn fn)
 96{
 97	DIR *dir;
 98	struct dirent *ent;
 99	char *buf;
100	struct stat st;
101
102	if (is_git_dir(path)) {
103		add_repo(base, path, fn);
104		return;
105	}
106	if (is_git_dir(fmt("%s/.git", path))) {
107		add_repo(base, fmt("%s/.git", path), fn);
108		return;
109	}
110	dir = opendir(path);
111	if (!dir) {
112		fprintf(stderr, "Error opening directory %s: %s (%d)\n",
113			path, strerror(errno), errno);
114		return;
115	}
116	while((ent = readdir(dir)) != NULL) {
117		if (ent->d_name[0] == '.') {
118			if (ent->d_name[1] == '\0')
119				continue;
120			if (ent->d_name[1] == '.' && ent->d_name[2] == '\0')
121				continue;
122		}
123		buf = malloc(strlen(path) + strlen(ent->d_name) + 2);
124		if (!buf) {
125			fprintf(stderr, "Alloc error on %s: %s (%d)\n",
126				path, strerror(errno), errno);
127			exit(1);
128		}
129		sprintf(buf, "%s/%s", path, ent->d_name);
130		if (stat(buf, &st)) {
131			fprintf(stderr, "Error checking path %s: %s (%d)\n",
132				buf, strerror(errno), errno);
133			free(buf);
134			continue;
135		}
136		if (S_ISDIR(st.st_mode))
137			scan_path(base, buf, fn);
138		free(buf);
139	}
140	closedir(dir);
141}
142
143void scan_tree(const char *path, repo_config_fn fn)
144{
145	scan_path(path, path, fn);
146}