gitweb: Add link to other blame implementation in blame views
[gitweb.git] / builtin-clone.c
index c338910b1c76f3c994e4a22c9c0a1da38843e050..32dea74d78381ca1dffdac7f88e45a89a9825104 100644 (file)
@@ -20,6 +20,9 @@
 #include "dir.h"
 #include "pack-refs.h"
 #include "sigchain.h"
+#include "branch.h"
+#include "remote.h"
+#include "run-command.h"
 
 /*
  * Overall FIXMEs:
@@ -101,11 +104,12 @@ static char *get_repo_path(const char *repo, int *is_bundle)
 static char *guess_dir_name(const char *repo, int is_bundle, int is_bare)
 {
        const char *end = repo + strlen(repo), *start;
+       char *dir;
 
        /*
-        * Strip trailing slashes and /.git
+        * Strip trailing spaces, slashes and /.git
         */
-       while (repo < end && is_dir_sep(end[-1]))
+       while (repo < end && (is_dir_sep(end[-1]) || isspace(end[-1])))
                end--;
        if (end - repo > 5 && is_dir_sep(end[-5]) &&
            !strncmp(end - 4, ".git", 4)) {
@@ -137,10 +141,33 @@ static char *guess_dir_name(const char *repo, int is_bundle, int is_bare)
        if (is_bare) {
                struct strbuf result = STRBUF_INIT;
                strbuf_addf(&result, "%.*s.git", (int)(end - start), start);
-               return strbuf_detach(&result, 0);
+               dir = strbuf_detach(&result, NULL);
+       } else
+               dir = xstrndup(start, end - start);
+       /*
+        * Replace sequences of 'control' characters and whitespace
+        * with one ascii space, remove leading and trailing spaces.
+        */
+       if (*dir) {
+               char *out = dir;
+               int prev_space = 1 /* strip leading whitespace */;
+               for (end = dir; *end; ++end) {
+                       char ch = *end;
+                       if ((unsigned char)ch < '\x20')
+                               ch = '\x20';
+                       if (isspace(ch)) {
+                               if (prev_space)
+                                       continue;
+                               prev_space = 1;
+                       } else
+                               prev_space = 0;
+                       *out++ = ch;
+               }
+               *out = '\0';
+               if (out > dir && prev_space)
+                       out[-1] = '\0';
        }
-
-       return xstrndup(start, end - start);
+       return dir;
 }
 
 static void strip_trailing_slashes(char *dir)
@@ -193,13 +220,13 @@ static void copy_or_link_directory(struct strbuf *src, struct strbuf *dest)
 
        dir = opendir(src->buf);
        if (!dir)
-               die("failed to open %s", src->buf);
+               die_errno("failed to open '%s'", src->buf);
 
        if (mkdir(dest->buf, 0777)) {
                if (errno != EEXIST)
-                       die("failed to create directory %s", dest->buf);
+                       die_errno("failed to create directory '%s'", dest->buf);
                else if (stat(dest->buf, &buf))
-                       die("failed to stat %s", dest->buf);
+                       die_errno("failed to stat '%s'", dest->buf);
                else if (!S_ISDIR(buf.st_mode))
                        die("%s exists and is not a directory", dest->buf);
        }
@@ -225,16 +252,16 @@ static void copy_or_link_directory(struct strbuf *src, struct strbuf *dest)
                }
 
                if (unlink(dest->buf) && errno != ENOENT)
-                       die("failed to unlink %s", dest->buf);
+                       die_errno("failed to unlink '%s'", dest->buf);
                if (!option_no_hardlinks) {
                        if (!link(src->buf, dest->buf))
                                continue;
                        if (option_local)
-                               die("failed to create link %s", dest->buf);
+                               die_errno("failed to create link '%s'", dest->buf);
                        option_no_hardlinks = 1;
                }
                if (copy_file(dest->buf, src->buf, 0666))
-                       die("failed to copy file to %s", dest->buf);
+                       die_errno("failed to copy file to '%s'", dest->buf);
        }
        closedir(dir);
 }
@@ -267,7 +294,7 @@ static const struct ref *clone_local(const char *src_repo,
 
 static const char *junk_work_tree;
 static const char *junk_git_dir;
-pid_t junk_pid;
+static pid_t junk_pid;
 
 static void remove_junk(void)
 {
@@ -293,43 +320,6 @@ static void remove_junk_on_signal(int signo)
        raise(signo);
 }
 
-static const struct ref *locate_head(const struct ref *refs,
-                                    const struct ref *mapped_refs,
-                                    const struct ref **remote_head_p)
-{
-       const struct ref *remote_head = NULL;
-       const struct ref *remote_master = NULL;
-       const struct ref *r;
-       for (r = refs; r; r = r->next)
-               if (!strcmp(r->name, "HEAD"))
-                       remote_head = r;
-
-       for (r = mapped_refs; r; r = r->next)
-               if (!strcmp(r->name, "refs/heads/master"))
-                       remote_master = r;
-
-       if (remote_head_p)
-               *remote_head_p = remote_head;
-
-       /* If there's no HEAD value at all, never mind. */
-       if (!remote_head)
-               return NULL;
-
-       /* If refs/heads/master could be right, it is. */
-       if (remote_master && !hashcmp(remote_master->old_sha1,
-                                     remote_head->old_sha1))
-               return remote_master;
-
-       /* Look for another ref that points there */
-       for (r = mapped_refs; r; r = r->next)
-               if (r != remote_head &&
-                   !hashcmp(r->old_sha1, remote_head->old_sha1))
-                       return r;
-
-       /* Nothing is the same */
-       return NULL;
-}
-
 static struct ref *write_remote_refs(const struct ref *refs,
                struct refspec *refspec, const char *reflog)
 {
@@ -350,23 +340,8 @@ static struct ref *write_remote_refs(const struct ref *refs,
        return local_refs;
 }
 
-static void install_branch_config(const char *local,
-                                 const char *origin,
-                                 const char *remote)
-{
-       struct strbuf key = STRBUF_INIT;
-       strbuf_addf(&key, "branch.%s.remote", local);
-       git_config_set(key.buf, origin);
-       strbuf_reset(&key);
-       strbuf_addf(&key, "branch.%s.merge", local);
-       git_config_set(key.buf, remote);
-       strbuf_release(&key);
-}
-
 int cmd_clone(int argc, const char **argv, const char *prefix)
 {
-       int use_local_hardlinks = 1;
-       int use_separate_remote = 1;
        int is_bundle = 0;
        struct stat buf;
        const char *repo_name, *repo, *work_tree, *git_dir;
@@ -377,20 +352,19 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
        struct strbuf branch_top = STRBUF_INIT, reflog_msg = STRBUF_INIT;
        struct transport *transport = NULL;
        char *src_ref_prefix = "refs/heads/";
+       int err = 0;
 
-       struct refspec refspec;
+       struct refspec *refspec;
+       const char *fetch_pattern;
 
        junk_pid = getpid();
 
-       argc = parse_options(argc, argv, builtin_clone_options,
+       argc = parse_options(argc, argv, prefix, builtin_clone_options,
                             builtin_clone_usage, 0);
 
        if (argc == 0)
                die("You must specify a repository to clone.");
 
-       if (option_no_hardlinks)
-               use_local_hardlinks = 0;
-
        if (option_mirror)
                option_bare = 1;
 
@@ -399,7 +373,6 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
                        die("--bare and --origin %s options are incompatible.",
                            option_origin);
                option_no_checkout = 1;
-               use_separate_remote = 0;
        }
 
        if (!option_origin)
@@ -446,18 +419,18 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
        if (!option_bare) {
                junk_work_tree = work_tree;
                if (safe_create_leading_directories_const(work_tree) < 0)
-                       die("could not create leading directories of '%s': %s",
-                                       work_tree, strerror(errno));
+                       die_errno("could not create leading directories of '%s'",
+                                 work_tree);
                if (!dest_exists && mkdir(work_tree, 0755))
-                       die("could not create work tree dir '%s': %s.",
-                                       work_tree, strerror(errno));
+                       die_errno("could not create work tree dir '%s'.",
+                                 work_tree);
                set_git_work_tree(work_tree);
        }
        junk_git_dir = git_dir;
        atexit(remove_junk);
        sigchain_push_common(remove_junk_on_signal);
 
-       setenv(CONFIG_ENVIRONMENT, xstrdup(mkpath("%s/config", git_dir)), 1);
+       setenv(CONFIG_ENVIRONMENT, mkpath("%s/config", git_dir), 1);
 
        if (safe_create_leading_directories_const(git_dir) < 0)
                die("could not create leading directories of '%s'", git_dir);
@@ -487,8 +460,14 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
                strbuf_addf(&branch_top, "refs/remotes/%s/", option_origin);
        }
 
+       strbuf_addf(&value, "+%s*:%s*", src_ref_prefix, branch_top.buf);
+
        if (option_mirror || !option_bare) {
                /* Configure the remote */
+               strbuf_addf(&key, "remote.%s.fetch", option_origin);
+               git_config_set_multivar(key.buf, value.buf, "^$", 0);
+               strbuf_reset(&key);
+
                if (option_mirror) {
                        strbuf_addf(&key, "remote.%s.mirror", option_origin);
                        git_config_set(key.buf, "true");
@@ -497,19 +476,13 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
 
                strbuf_addf(&key, "remote.%s.url", option_origin);
                git_config_set(key.buf, repo);
-                       strbuf_reset(&key);
-
-               strbuf_addf(&key, "remote.%s.fetch", option_origin);
-               strbuf_addf(&value, "+%s*:%s*", src_ref_prefix, branch_top.buf);
-               git_config_set_multivar(key.buf, value.buf, "^$", 0);
                strbuf_reset(&key);
-               strbuf_reset(&value);
        }
 
-       refspec.force = 0;
-       refspec.pattern = 1;
-       refspec.src = src_ref_prefix;
-       refspec.dst = branch_top.buf;
+       fetch_pattern = value.buf;
+       refspec = parse_fetch_refspec(1, &fetch_pattern);
+
+       strbuf_reset(&value);
 
        if (path && !is_bundle)
                refs = clone_local(path, git_dir);
@@ -543,9 +516,10 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
        if (refs) {
                clear_extra_refs();
 
-               mapped_refs = write_remote_refs(refs, &refspec, reflog_msg.buf);
+               mapped_refs = write_remote_refs(refs, refspec, reflog_msg.buf);
 
-               head_points_at = locate_head(refs, mapped_refs, &remote_head);
+               remote_head = find_ref_by_name(refs, "HEAD");
+               head_points_at = guess_remote_head(remote_head, mapped_refs, 0);
        }
        else {
                warning("You appear to have cloned an empty repository.");
@@ -553,7 +527,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
                remote_head = NULL;
                option_no_checkout = 1;
                if (!option_bare)
-                       install_branch_config("master", option_origin,
+                       install_branch_config(0, "master", option_origin,
                                              "refs/heads/master");
        }
 
@@ -583,7 +557,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
                                      head_points_at->peer_ref->name,
                                      reflog_msg.buf);
 
-                       install_branch_config(head, option_origin,
+                       install_branch_config(0, head, option_origin,
                                              head_points_at->name);
                }
        } else if (remote_head) {
@@ -631,6 +605,9 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
                if (write_cache(fd, active_cache, active_nr) ||
                    commit_locked_index(lock_file))
                        die("unable to write new index file");
+
+               err |= run_hook(NULL, "post-checkout", sha1_to_hex(null_sha1),
+                               sha1_to_hex(remote_head->old_sha1), "1", NULL);
        }
 
        strbuf_release(&reflog_msg);
@@ -638,5 +615,5 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
        strbuf_release(&key);
        strbuf_release(&value);
        junk_pid = 0;
-       return 0;
+       return err;
 }