post-checkout hook, tests, and docs

diff --git a/daemon.c b/daemon.c
index e74ecac952fa0d399a1ed0c426a9e27d96b3ddcb..9cf22fef417cee29e550a35fef1bac1050482afa 100644 (file)
--- a/daemon.c
+++ b/daemon.c
@@ -16,7 +16,8 @@ static int reuseaddr;
 static const char daemon_usage[] =
 "git-daemon [--verbose] [--syslog] [--export-all]\n"
 "           [--timeout=n] [--init-timeout=n] [--strict-paths]\n"
-"           [--base-path=path] [--user-path | --user-path=path]\n"
+"           [--base-path=path] [--base-path-relaxed]\n"
+"           [--user-path | --user-path=path]\n"
 "           [--interpolated-path=path]\n"
 "           [--reuseaddr] [--detach] [--pid-file=file]\n"
 "           [--[enable|disable|allow-override|forbid-override]=service]\n"
@@ -34,6 +35,7 @@ static int export_all_trees;
 /* Take all paths relative to this one if non-NULL */
 static char *base_path;
 static char *interpolated_path;
+static int base_path_relaxed;
 
 /* Flag indicating client sent extra args. */
 static int saw_extended_args;
@@ -133,7 +135,7 @@ static int avoid_alias(char *p)
 {
        int sl, ndot;
 
-       /* 
+       /*
         * This resurrects the belts and suspenders paranoia check by HPA
         * done in <435560F7.4080006@zytor.com> thread, now enter_repo()
         * does not do getcwd() based path canonicalizations.
@@ -180,6 +182,7 @@ static char *path_ok(struct interp *itable)
 {
        static char rpath[PATH_MAX];
        static char interp_path[PATH_MAX];
+       int retried_path = 0;
        char *path;
        char *dir;
 
@@ -235,7 +238,22 @@ static char *path_ok(struct interp *itable)
                dir = rpath;
        }
 
-       path = enter_repo(dir, strict_paths);
+       do {
+               path = enter_repo(dir, strict_paths);
+               if (path)
+                       break;
+
+               /*
+                * if we fail and base_path_relaxed is enabled, try without
+                * prefixing the base path
+                */
+               if (base_path && base_path_relaxed && !retried_path) {
+                       dir = itable[INTERP_SLOT_DIR].value;
+                       retried_path = 1;
+                       continue;
+               }
+               break;
+       } while (1);
 
        if (!path) {
                logerror("'%s': unable to chdir or not a git archive", dir);
@@ -247,7 +265,7 @@ static char *path_ok(struct interp *itable)
                int pathlen = strlen(path);
 
                /* The validation is done on the paths after enter_repo
-                * appends optional {.git,.git/.git} and friends, but 
+                * appends optional {.git,.git/.git} and friends, but
                 * it does not use getcwd().  So if your /pub is
                 * a symlink to /mnt/pub, you can whitelist /pub and
                 * do not have to say /mnt/pub.
@@ -439,7 +457,7 @@ static void parse_extra_args(struct interp *table, char *extra_args, int buflen)
        }
 }
 
-void fill_in_extra_table_entries(struct interp *itable)
+static void fill_in_extra_table_entries(struct interp *itable)
 {
        char *hp;
 
@@ -970,8 +988,8 @@ static void store_pid(const char *path)
        FILE *f = fopen(path, "w");
        if (!f)
                die("cannot open pid file %s: %s", path, strerror(errno));
-       fprintf(f, "%d\n", getpid());
-       fclose(f);
+       if (fprintf(f, "%d\n", getpid()) < 0 || fclose(f) != 0)
+               die("failed to write pid file %s: %s", path, strerror(errno));
 }
 
 static int serve(char *listen_addr, int listen_port, struct passwd *pass, gid_t gid)
@@ -1061,6 +1079,10 @@ int main(int argc, char **argv)
                        base_path = arg+12;
                        continue;
                }
+               if (!strcmp(arg, "--base-path-relaxed")) {
+                       base_path_relaxed = 1;
+                       continue;
+               }
                if (!prefixcmp(arg, "--interpolated-path=")) {
                        interpolated_path = arg+20;
                        continue;