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/* scan-tree.c
*
* Copyright (C) 2008-2009 Lars Hjemli
* Copyright (C) 2010 Jason A. Donenfeld <Jason@zx2c4.com>
*
* Licensed under GNU General Public License v2
* (see COPYING for full license text)
*/
#include "cgit.h"
#include "configfile.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;
}
struct cgit_repo *repo;
repo_config_fn config_fn;
char *owner;
char *desc;
static void repo_config(const char *name, const char *value)
{
config_fn(repo, name, value);
}
static int gitweb_config(const char *key, const char *value, void *cb)
{
if (ctx.cfg.enable_gitweb_owner && !strcmp(key, "gitweb.owner"))
owner = xstrdup(value);
else if (ctx.cfg.enable_gitweb_desc && !strcmp(key, "gitweb.description"))
desc = xstrdup(value);
return 0;
}
static char *xstrrchr(char *s, char *from, int c)
{
while (from >= s && *from != c)
from--;
return from < s ? NULL : from;
}
static void add_repo(const char *base, const char *path, repo_config_fn fn)
{
struct stat st;
struct passwd *pwd;
char *rel, *p, *slash;
int n;
size_t size;
if (stat(path, &st)) {
fprintf(stderr, "Error accessing %s: %s (%d)\n",
path, strerror(errno), errno);
return;
}
if (ctx.cfg.strict_export && stat(fmt("%s/%s", path, ctx.cfg.strict_export), &st))
return;
if (!stat(fmt("%s/noweb", path), &st))
return;
owner = NULL;
desc = NULL;
git_config_from_file(gitweb_config, fmt("%s/config", path), NULL);
if (base == path)
rel = xstrdup(fmt("%s", path));
else
rel = xstrdup(fmt("%s", path + strlen(base) + 1));
if (!strcmp(rel + strlen(rel) - 5, "/.git"))
rel[strlen(rel) - 5] = '\0';
repo = cgit_add_repo(rel);
if (ctx.cfg.remove_suffix)
if ((p = strrchr(repo->url, '.')) && !strcmp(p, ".git"))
*p = '\0';
repo->name = repo->url;
repo->path = xstrdup(path);
while (!owner) {
if ((pwd = getpwuid(st.st_uid)) == NULL) {
fprintf(stderr, "Error reading owner-info for %s: %s (%d)\n",
path, strerror(errno), errno);
break;
}
if (pwd->pw_gecos)
if ((p = strchr(pwd->pw_gecos, ',')))
*p = '\0';
owner = xstrdup(pwd->pw_gecos ? pwd->pw_gecos : pwd->pw_name);
}
repo->owner = owner;
if (desc)
repo->desc = desc;
else {
p = fmt("%s/description", path);
if (!stat(p, &st))
readfile(p, &repo->desc, &size);
}
if (!repo->readme) {
p = fmt("%s/README.html", path);
if (!stat(p, &st))
repo->readme = "README.html";
}
if (ctx.cfg.section_from_path) {
n = ctx.cfg.section_from_path;
if (n > 0) {
slash = rel;
while (slash && n && (slash = strchr(slash, '/')))
n--;
} else {
slash = rel + strlen(rel);
while (slash && n && (slash = xstrrchr(rel, slash, '/')))
n++;
}
if (slash && !n) {
*slash = '\0';
repo->section = xstrdup(rel);
*slash = '/';
if (!prefixcmp(repo->name, repo->section)) {
repo->name += strlen(repo->section);
if (*repo->name == '/')
repo->name++;
}
}
}
p = fmt("%s/cgitrc", path);
if (!stat(p, &st)) {
config_fn = fn;
parse_configfile(xstrdup(p), &repo_config);
}
free(rel);
}
static void scan_path(const char *base, const char *path, repo_config_fn fn)
{
DIR *dir = opendir(path);
struct dirent *ent;
char *buf;
struct stat st;
if (!dir) {
fprintf(stderr, "Error opening directory %s: %s (%d)\n",
path, strerror(errno), errno);
return;
}
if (is_git_dir(path)) {
add_repo(base, path, fn);
goto end;
}
if (is_git_dir(fmt("%s/.git", path))) {
add_repo(base, fmt("%s/.git", path), fn);
goto end;
}
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;
if (!ctx.cfg.scan_hidden_path)
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, fn);
free(buf);
}
end:
closedir(dir);
}
#define lastc(s) s[strlen(s) - 1]
void scan_projects(const char *path, const char *projectsfile, repo_config_fn fn)
{
char line[MAX_PATH * 2], *z;
FILE *projects;
int err;
projects = fopen(projectsfile, "r");
if (!projects) {
fprintf(stderr, "Error opening projectsfile %s: %s (%d)\n",
projectsfile, strerror(errno), errno);
return;
}
while (fgets(line, sizeof(line), projects) != NULL) {
for (z = &lastc(line);
strlen(line) && strchr("\n\r", *z);
z = &lastc(line))
*z = '\0';
if (strlen(line))
scan_path(path, fmt("%s/%s", path, line), fn);
}
if ((err = ferror(projects))) {
fprintf(stderr, "Error reading from projectsfile %s: %s (%d)\n",
projectsfile, strerror(err), err);
}
fclose(projects);
}
void scan_tree(const char *path, repo_config_fn fn)
{
scan_path(path, path, fn);
}
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