test-reach: test reduce_heads
[gitweb.git] / setup.c
diff --git a/setup.c b/setup.c
index 860507e1fdb2d61da71b27eb00d8413f2fabcfa9..b24c811c1c3129c8f11fa0fffa4e937705792e36 100644 (file)
--- a/setup.c
+++ b/setup.c
@@ -3,6 +3,7 @@
 #include "config.h"
 #include "dir.h"
 #include "string-list.h"
+#include "chdir-notify.h"
 
 static int inside_git_dir = -1;
 static int inside_work_tree = -1;
@@ -119,7 +120,7 @@ char *prefix_path(const char *prefix, int len, const char *path)
 {
        char *r = prefix_path_gently(prefix, len, NULL, path);
        if (!r)
-               die("'%s' is outside repository", path);
+               die(_("'%s' is outside repository"), path);
        return r;
 }
 
@@ -160,7 +161,7 @@ int check_filename(const char *prefix, const char *arg)
                free(to_free);
                return 0; /* file does not exist */
        }
-       die_errno("failed to stat '%s'", arg);
+       die_errno(_("failed to stat '%s'"), arg);
 }
 
 static void NORETURN die_verify_filename(const char *prefix,
@@ -230,7 +231,7 @@ void verify_filename(const char *prefix,
                     int diagnose_misspelt_rev)
 {
        if (*arg == '-')
-               die("bad flag '%s' used after filename", arg);
+               die(_("option '%s' must come before non-option arguments"), arg);
        if (looks_like_pathspec(arg) || check_filename(prefix, arg))
                return;
        die_verify_filename(prefix, arg, diagnose_misspelt_rev);
@@ -312,7 +313,9 @@ int is_git_directory(const char *suspect)
        size_t len;
 
        /* Check worktree-related signatures */
-       strbuf_addf(&path, "%s/HEAD", suspect);
+       strbuf_addstr(&path, suspect);
+       strbuf_complete(&path, '/');
+       strbuf_addstr(&path, "HEAD");
        if (validate_headref(path.buf))
                goto done;
 
@@ -376,21 +379,18 @@ int is_inside_work_tree(void)
 
 void setup_work_tree(void)
 {
-       const char *work_tree, *git_dir;
+       const char *work_tree;
        static int initialized = 0;
 
        if (initialized)
                return;
 
        if (work_tree_config_is_bogus)
-               die("unable to set up work tree using invalid config");
+               die(_("unable to set up work tree using invalid config"));
 
        work_tree = get_git_work_tree();
-       git_dir = get_git_dir();
-       if (!is_absolute_path(git_dir))
-               git_dir = real_path(get_git_dir());
-       if (!work_tree || chdir(work_tree))
-               die("This operation must be run in a work tree");
+       if (!work_tree || chdir_notify(work_tree))
+               die(_("this operation must be run in a work tree"));
 
        /*
         * Make sure subsequent git processes find correct worktree
@@ -399,12 +399,6 @@ void setup_work_tree(void)
        if (getenv(GIT_WORK_TREE_ENVIRONMENT))
                setenv(GIT_WORK_TREE_ENVIRONMENT, ".", 1);
 
-       /*
-        * NEEDSWORK: this call can essentially be set_git_dir(get_git_dir())
-        * which can cause some problems when trying to free the old value of
-        * gitdir.
-        */
-       set_git_dir(remove_leading_path(git_dir, work_tree));
        initialized = 1;
 }
 
@@ -425,7 +419,11 @@ static int check_repo_format(const char *var, const char *value, void *vdata)
                        ;
                else if (!strcmp(ext, "preciousobjects"))
                        data->precious_objects = git_config_bool(var, value);
-               else
+               else if (!strcmp(ext, "partialclone")) {
+                       if (!value)
+                               return config_error_nonbool(var);
+                       data->partial_clone = xstrdup(value);
+               } else
                        string_list_append(&data->unknown_extensions, ext);
        } else if (strcmp(var, "core.bare") == 0) {
                data->is_bare = git_config_bool(var, value);
@@ -437,16 +435,15 @@ static int check_repo_format(const char *var, const char *value, void *vdata)
        return 0;
 }
 
-static int check_repository_format_gently(const char *gitdir, int *nongit_ok)
+static int check_repository_format_gently(const char *gitdir, struct repository_format *candidate, int *nongit_ok)
 {
        struct strbuf sb = STRBUF_INIT;
        struct strbuf err = STRBUF_INIT;
-       struct repository_format candidate;
        int has_common;
 
        has_common = get_common_dir(&sb, gitdir);
        strbuf_addstr(&sb, "/config");
-       read_repository_format(&candidate, sb.buf);
+       read_repository_format(candidate, sb.buf);
        strbuf_release(&sb);
 
        /*
@@ -454,10 +451,10 @@ static int check_repository_format_gently(const char *gitdir, int *nongit_ok)
         * we treat a missing config as a silent "ok", even when nongit_ok
         * is unset.
         */
-       if (candidate.version < 0)
+       if (candidate->version < 0)
                return 0;
 
-       if (verify_repository_format(&candidate, &err) < 0) {
+       if (verify_repository_format(candidate, &err) < 0) {
                if (nongit_ok) {
                        warning("%s", err.buf);
                        strbuf_release(&err);
@@ -467,21 +464,22 @@ static int check_repository_format_gently(const char *gitdir, int *nongit_ok)
                die("%s", err.buf);
        }
 
-       repository_format_precious_objects = candidate.precious_objects;
-       string_list_clear(&candidate.unknown_extensions, 0);
+       repository_format_precious_objects = candidate->precious_objects;
+       repository_format_partial_clone = candidate->partial_clone;
+       string_list_clear(&candidate->unknown_extensions, 0);
        if (!has_common) {
-               if (candidate.is_bare != -1) {
-                       is_bare_repository_cfg = candidate.is_bare;
+               if (candidate->is_bare != -1) {
+                       is_bare_repository_cfg = candidate->is_bare;
                        if (is_bare_repository_cfg == 1)
                                inside_work_tree = -1;
                }
-               if (candidate.work_tree) {
+               if (candidate->work_tree) {
                        free(git_work_tree_cfg);
-                       git_work_tree_cfg = candidate.work_tree;
+                       git_work_tree_cfg = candidate->work_tree;
                        inside_work_tree = -1;
                }
        } else {
-               free(candidate.work_tree);
+               free(candidate->work_tree);
        }
 
        return 0;
@@ -492,6 +490,7 @@ int read_repository_format(struct repository_format *format, const char *path)
        memset(format, 0, sizeof(*format));
        format->version = -1;
        format->is_bare = -1;
+       format->hash_algo = GIT_HASH_SHA1;
        string_list_init(&format->unknown_extensions, 1);
        git_config_from_file(check_repo_format, path, format);
        return format->version;
@@ -528,25 +527,26 @@ void read_gitfile_error_die(int error_code, const char *path, const char *dir)
                /* non-fatal; follow return path */
                break;
        case READ_GITFILE_ERR_OPEN_FAILED:
-               die_errno("Error opening '%s'", path);
+               die_errno(_("error opening '%s'"), path);
        case READ_GITFILE_ERR_TOO_LARGE:
-               die("Too large to be a .git file: '%s'", path);
+               die(_("too large to be a .git file: '%s'"), path);
        case READ_GITFILE_ERR_READ_FAILED:
-               die("Error reading %s", path);
+               die(_("error reading %s"), path);
        case READ_GITFILE_ERR_INVALID_FORMAT:
-               die("Invalid gitfile format: %s", path);
+               die(_("invalid gitfile format: %s"), path);
        case READ_GITFILE_ERR_NO_PATH:
-               die("No path in gitfile: %s", path);
+               die(_("no path in gitfile: %s"), path);
        case READ_GITFILE_ERR_NOT_A_REPO:
-               die("Not a git repository: %s", dir);
+               die(_("not a git repository: %s"), dir);
        default:
-               die("BUG: unknown error code");
+               BUG("unknown error code");
        }
 }
 
 /*
  * Try to read the location of the git directory from the .git file,
- * return path to git directory if found.
+ * return path to git directory if found. The return value comes from
+ * a shared buffer.
  *
  * On failure, if return_error_code is not NULL, return_error_code
  * will be set to an error code and NULL will be returned. If
@@ -627,6 +627,7 @@ const char *read_gitfile_gently(const char *path, int *return_error_code)
 
 static const char *setup_explicit_git_dir(const char *gitdirenv,
                                          struct strbuf *cwd,
+                                         struct repository_format *repo_fmt,
                                          int *nongit_ok)
 {
        const char *work_tree_env = getenv(GIT_WORK_TREE_ENVIRONMENT);
@@ -635,7 +636,7 @@ static const char *setup_explicit_git_dir(const char *gitdirenv,
        int offset;
 
        if (PATH_MAX - 40 < strlen(gitdirenv))
-               die("'$%s' too big", GIT_DIR_ENVIRONMENT);
+               die(_("'$%s' too big"), GIT_DIR_ENVIRONMENT);
 
        gitfile = (char*)read_gitfile(gitdirenv);
        if (gitfile) {
@@ -649,10 +650,10 @@ static const char *setup_explicit_git_dir(const char *gitdirenv,
                        free(gitfile);
                        return NULL;
                }
-               die("Not a git repository: '%s'", gitdirenv);
+               die(_("not a git repository: '%s'"), gitdirenv);
        }
 
-       if (check_repository_format_gently(gitdirenv, nongit_ok)) {
+       if (check_repository_format_gently(gitdirenv, repo_fmt, nongit_ok)) {
                free(gitfile);
                return NULL;
        }
@@ -678,12 +679,12 @@ static const char *setup_explicit_git_dir(const char *gitdirenv,
                else {
                        char *core_worktree;
                        if (chdir(gitdirenv))
-                               die_errno("Could not chdir to '%s'", gitdirenv);
+                               die_errno(_("cannot chdir to '%s'"), gitdirenv);
                        if (chdir(git_work_tree_cfg))
-                               die_errno("Could not chdir to '%s'", git_work_tree_cfg);
+                               die_errno(_("cannot chdir to '%s'"), git_work_tree_cfg);
                        core_worktree = xgetcwd();
                        if (chdir(cwd->buf))
-                               die_errno("Could not come back to cwd");
+                               die_errno(_("cannot come back to cwd"));
                        set_git_work_tree(core_worktree);
                        free(core_worktree);
                }
@@ -711,7 +712,7 @@ static const char *setup_explicit_git_dir(const char *gitdirenv,
        if (offset >= 0) {      /* cwd inside worktree? */
                set_git_dir(real_path(gitdirenv));
                if (chdir(worktree))
-                       die_errno("Could not chdir to '%s'", worktree);
+                       die_errno(_("cannot chdir to '%s'"), worktree);
                strbuf_addch(cwd, '/');
                free(gitfile);
                return cwd->buf + offset;
@@ -725,9 +726,10 @@ static const char *setup_explicit_git_dir(const char *gitdirenv,
 
 static const char *setup_discovered_git_dir(const char *gitdir,
                                            struct strbuf *cwd, int offset,
+                                           struct repository_format *repo_fmt,
                                            int *nongit_ok)
 {
-       if (check_repository_format_gently(gitdir, nongit_ok))
+       if (check_repository_format_gently(gitdir, repo_fmt, nongit_ok))
                return NULL;
 
        /* --work-tree is set without --git-dir; use discovered one */
@@ -738,8 +740,8 @@ static const char *setup_discovered_git_dir(const char *gitdir,
                if (offset != cwd->len && !is_absolute_path(gitdir))
                        gitdir = to_free = real_pathdup(gitdir, 1);
                if (chdir(cwd->buf))
-                       die_errno("Could not come back to cwd");
-               ret = setup_explicit_git_dir(gitdir, cwd, nongit_ok);
+                       die_errno(_("cannot come back to cwd"));
+               ret = setup_explicit_git_dir(gitdir, cwd, repo_fmt, nongit_ok);
                free(to_free);
                return ret;
        }
@@ -748,7 +750,7 @@ static const char *setup_discovered_git_dir(const char *gitdir,
        if (is_bare_repository_cfg > 0) {
                set_git_dir(offset == cwd->len ? gitdir : real_path(gitdir));
                if (chdir(cwd->buf))
-                       die_errno("Could not come back to cwd");
+                       die_errno(_("cannot come back to cwd"));
                return NULL;
        }
 
@@ -771,11 +773,12 @@ static const char *setup_discovered_git_dir(const char *gitdir,
 
 /* #16.1, #17.1, #20.1, #21.1, #22.1 (see t1510) */
 static const char *setup_bare_git_dir(struct strbuf *cwd, int offset,
+                                     struct repository_format *repo_fmt,
                                      int *nongit_ok)
 {
        int root_len;
 
-       if (check_repository_format_gently(".", nongit_ok))
+       if (check_repository_format_gently(".", repo_fmt, nongit_ok))
                return NULL;
 
        setenv(GIT_IMPLICIT_WORK_TREE_ENVIRONMENT, "0", 1);
@@ -786,15 +789,15 @@ static const char *setup_bare_git_dir(struct strbuf *cwd, int offset,
 
                gitdir = offset == cwd->len ? "." : xmemdupz(cwd->buf, offset);
                if (chdir(cwd->buf))
-                       die_errno("Could not come back to cwd");
-               return setup_explicit_git_dir(gitdir, cwd, nongit_ok);
+                       die_errno(_("cannot come back to cwd"));
+               return setup_explicit_git_dir(gitdir, cwd, repo_fmt, nongit_ok);
        }
 
        inside_git_dir = 1;
        inside_work_tree = 0;
        if (offset != cwd->len) {
                if (chdir(cwd->buf))
-                       die_errno("Cannot come back to cwd");
+                       die_errno(_("cannot come back to cwd"));
                root_len = offset_1st_component(cwd->buf);
                strbuf_setlen(cwd, offset > root_len ? offset : root_len);
                set_git_dir(cwd->buf);
@@ -807,9 +810,9 @@ static const char *setup_bare_git_dir(struct strbuf *cwd, int offset,
 static const char *setup_nongit(const char *cwd, int *nongit_ok)
 {
        if (!nongit_ok)
-               die(_("Not a git repository (or any of the parent directories): %s"), DEFAULT_GIT_DIR_ENVIRONMENT);
+               die(_("not a git repository (or any of the parent directories): %s"), DEFAULT_GIT_DIR_ENVIRONMENT);
        if (chdir(cwd))
-               die_errno(_("Cannot come back to cwd"));
+               die_errno(_("cannot come back to cwd"));
        *nongit_ok = 1;
        return NULL;
 }
@@ -818,7 +821,7 @@ static dev_t get_device_or_die(const char *path, const char *prefix, int prefix_
 {
        struct stat buf;
        if (stat(path, &buf)) {
-               die_errno("failed to stat '%*s%s%s'",
+               die_errno(_("failed to stat '%*s%s%s'"),
                                prefix_len,
                                prefix ? prefix : "",
                                prefix ? "/" : "", path);
@@ -925,7 +928,7 @@ static enum discovery_result setup_git_directory_gently_1(struct strbuf *dir,
         * - ../.git
         * - ../.git/
         * - ../ (bare)
-        * - ../../.git/
+        * - ../../.git
         *   etc.
         */
        one_filesystem = !git_env_bool("GIT_DISCOVERY_ACROSS_FILESYSTEM", 0);
@@ -1027,7 +1030,8 @@ const char *setup_git_directory_gently(int *nongit_ok)
 {
        static struct strbuf cwd = STRBUF_INIT;
        struct strbuf dir = STRBUF_INIT, gitdir = STRBUF_INIT;
-       const char *prefix, *env_prefix;
+       const char *prefix;
+       struct repository_format repo_fmt;
 
        /*
         * We may have read an incomplete configuration before
@@ -1055,18 +1059,18 @@ const char *setup_git_directory_gently(int *nongit_ok)
                prefix = NULL;
                break;
        case GIT_DIR_EXPLICIT:
-               prefix = setup_explicit_git_dir(gitdir.buf, &cwd, nongit_ok);
+               prefix = setup_explicit_git_dir(gitdir.buf, &cwd, &repo_fmt, nongit_ok);
                break;
        case GIT_DIR_DISCOVERED:
                if (dir.len < cwd.len && chdir(dir.buf))
-                       die(_("Cannot change to '%s'"), dir.buf);
+                       die(_("cannot change to '%s'"), dir.buf);
                prefix = setup_discovered_git_dir(gitdir.buf, &cwd, dir.len,
-                                                 nongit_ok);
+                                                 &repo_fmt, nongit_ok);
                break;
        case GIT_DIR_BARE:
                if (dir.len < cwd.len && chdir(dir.buf))
-                       die(_("Cannot change to '%s'"), dir.buf);
-               prefix = setup_bare_git_dir(&cwd, dir.len, nongit_ok);
+                       die(_("cannot change to '%s'"), dir.buf);
+               prefix = setup_bare_git_dir(&cwd, dir.len, &repo_fmt, nongit_ok);
                break;
        case GIT_DIR_HIT_CEILING:
                prefix = setup_nongit(cwd.buf, nongit_ok);
@@ -1078,23 +1082,13 @@ const char *setup_git_directory_gently(int *nongit_ok)
                        strbuf_release(&dir);
                        return NULL;
                }
-               die(_("Not a git repository (or any parent up to mount point %s)\n"
+               die(_("not a git repository (or any parent up to mount point %s)\n"
                      "Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set)."),
                    dir.buf);
        default:
-               die("BUG: unhandled setup_git_directory_1() result");
+               BUG("unhandled setup_git_directory_1() result");
        }
 
-       /*
-        * NEEDSWORK: This was a hack in order to get ls-files and grep to have
-        * properly formated output when recursing submodules.  Once ls-files
-        * and grep have been changed to perform this recursing in-process this
-        * needs to be removed.
-        */
-       env_prefix = getenv(GIT_TOPLEVEL_PREFIX_ENVIRONMENT);
-       if (env_prefix)
-               prefix = env_prefix;
-
        if (prefix)
                setenv(GIT_PREFIX_ENVIRONMENT, prefix, 1);
        else
@@ -1119,9 +1113,10 @@ const char *setup_git_directory_gently(int *nongit_ok)
                        const char *gitdir = getenv(GIT_DIR_ENVIRONMENT);
                        if (!gitdir)
                                gitdir = DEFAULT_GIT_DIR_ENVIRONMENT;
-                       repo_set_gitdir(the_repository, gitdir);
-                       setup_git_env();
+                       setup_git_env(gitdir);
                }
+               if (startup_info->have_repository)
+                       repo_set_hash_algo(the_repository, repo_fmt.hash_algo);
        }
 
        strbuf_release(&dir);
@@ -1170,7 +1165,7 @@ int git_config_perm(const char *var, const char *value)
        /* A filemode value was given: 0xxx */
 
        if ((i & 0600) != 0600)
-               die(_("Problem with core.sharedRepository filemode value "
+               die(_("problem with core.sharedRepository filemode value "
                    "(0%.3o).\nThe owner of files must always have "
                    "read and write permissions."), i);
 
@@ -1183,7 +1178,8 @@ int git_config_perm(const char *var, const char *value)
 
 void check_repository_format(void)
 {
-       check_repository_format_gently(get_git_dir(), NULL);
+       struct repository_format repo_fmt;
+       check_repository_format_gently(get_git_dir(), &repo_fmt, NULL);
        startup_info->have_repository = 1;
 }
 
@@ -1212,7 +1208,7 @@ void sanitize_stdfds(void)
        while (fd != -1 && fd < 2)
                fd = dup(fd);
        if (fd == -1)
-               die_errno("open /dev/null or dup failed");
+               die_errno(_("open /dev/null or dup failed"));
        if (fd > 2)
                close(fd);
 }
@@ -1227,12 +1223,12 @@ int daemonize(void)
                case 0:
                        break;
                case -1:
-                       die_errno("fork failed");
+                       die_errno(_("fork failed"));
                default:
                        exit(0);
        }
        if (setsid() == -1)
-               die_errno("setsid failed");
+               die_errno(_("setsid failed"));
        close(0);
        close(1);
        close(2);