Imported Upstream version 2.12.4
[platform/upstream/git.git] / unpack-trees.c
index 6bc9512..3a8ee19 100644 (file)
@@ -52,6 +52,41 @@ static const char *unpack_plumbing_errors[NB_UNPACK_TREES_ERROR_TYPES] = {
          ? ((o)->msgs[(type)])      \
          : (unpack_plumbing_errors[(type)]) )
 
+static const char *super_prefixed(const char *path)
+{
+       /*
+        * It is necessary and sufficient to have two static buffers
+        * here, as the return value of this function is fed to
+        * error() using the unpack_*_errors[] templates we see above.
+        */
+       static struct strbuf buf[2] = {STRBUF_INIT, STRBUF_INIT};
+       static int super_prefix_len = -1;
+       static unsigned idx = ARRAY_SIZE(buf) - 1;
+
+       if (super_prefix_len < 0) {
+               const char *super_prefix = get_super_prefix();
+               if (!super_prefix) {
+                       super_prefix_len = 0;
+               } else {
+                       int i;
+                       for (i = 0; i < ARRAY_SIZE(buf); i++)
+                               strbuf_addstr(&buf[i], super_prefix);
+                       super_prefix_len = buf[0].len;
+               }
+       }
+
+       if (!super_prefix_len)
+               return path;
+
+       if (++idx >= ARRAY_SIZE(buf))
+               idx = 0;
+
+       strbuf_setlen(&buf[idx], super_prefix_len);
+       strbuf_addstr(&buf[idx], path);
+
+       return buf[idx].buf;
+}
+
 void setup_unpack_trees_porcelain(struct unpack_trees_options *opts,
                                  const char *cmd)
 {
@@ -62,55 +97,55 @@ void setup_unpack_trees_porcelain(struct unpack_trees_options *opts,
        if (!strcmp(cmd, "checkout"))
                msg = advice_commit_before_merge
                      ? _("Your local changes to the following files would be overwritten by checkout:\n%%s"
-                         "Please commit your changes or stash them before you can switch branches.")
+                         "Please commit your changes or stash them before you switch branches.")
                      : _("Your local changes to the following files would be overwritten by checkout:\n%%s");
        else if (!strcmp(cmd, "merge"))
                msg = advice_commit_before_merge
                      ? _("Your local changes to the following files would be overwritten by merge:\n%%s"
-                         "Please commit your changes or stash them before you can merge.")
+                         "Please commit your changes or stash them before you merge.")
                      : _("Your local changes to the following files would be overwritten by merge:\n%%s");
        else
                msg = advice_commit_before_merge
                      ? _("Your local changes to the following files would be overwritten by %s:\n%%s"
-                         "Please commit your changes or stash them before you can %s.")
+                         "Please commit your changes or stash them before you %s.")
                      : _("Your local changes to the following files would be overwritten by %s:\n%%s");
        msgs[ERROR_WOULD_OVERWRITE] = msgs[ERROR_NOT_UPTODATE_FILE] =
                xstrfmt(msg, cmd, cmd);
 
        msgs[ERROR_NOT_UPTODATE_DIR] =
-               _("Updating the following directories would lose untracked files in it:\n%s");
+               _("Updating the following directories would lose untracked files in them:\n%s");
 
        if (!strcmp(cmd, "checkout"))
                msg = advice_commit_before_merge
                      ? _("The following untracked working tree files would be removed by checkout:\n%%s"
-                         "Please move or remove them before you can switch branches.")
+                         "Please move or remove them before you switch branches.")
                      : _("The following untracked working tree files would be removed by checkout:\n%%s");
        else if (!strcmp(cmd, "merge"))
                msg = advice_commit_before_merge
                      ? _("The following untracked working tree files would be removed by merge:\n%%s"
-                         "Please move or remove them before you can merge.")
+                         "Please move or remove them before you merge.")
                      : _("The following untracked working tree files would be removed by merge:\n%%s");
        else
                msg = advice_commit_before_merge
                      ? _("The following untracked working tree files would be removed by %s:\n%%s"
-                         "Please move or remove them before you can %s.")
+                         "Please move or remove them before you %s.")
                      : _("The following untracked working tree files would be removed by %s:\n%%s");
        msgs[ERROR_WOULD_LOSE_UNTRACKED_REMOVED] = xstrfmt(msg, cmd, cmd);
 
        if (!strcmp(cmd, "checkout"))
                msg = advice_commit_before_merge
                      ? _("The following untracked working tree files would be overwritten by checkout:\n%%s"
-                         "Please move or remove them before you can switch branches.")
+                         "Please move or remove them before you switch branches.")
                      : _("The following untracked working tree files would be overwritten by checkout:\n%%s");
        else if (!strcmp(cmd, "merge"))
                msg = advice_commit_before_merge
                      ? _("The following untracked working tree files would be overwritten by merge:\n%%s"
-                         "Please move or remove them before you can merge.")
+                         "Please move or remove them before you merge.")
                      : _("The following untracked working tree files would be overwritten by merge:\n%%s");
        else
                msg = advice_commit_before_merge
                      ? _("The following untracked working tree files would be overwritten by %s:\n%%s"
-                         "Please move or remove them before you can %s.")
+                         "Please move or remove them before you %s.")
                      : _("The following untracked working tree files would be overwritten by %s:\n%%s");
        msgs[ERROR_WOULD_LOSE_UNTRACKED_OVERWRITTEN] = xstrfmt(msg, cmd, cmd);
 
@@ -123,9 +158,9 @@ void setup_unpack_trees_porcelain(struct unpack_trees_options *opts,
        msgs[ERROR_SPARSE_NOT_UPTODATE_FILE] =
                _("Cannot update sparse checkout: the following entries are not up-to-date:\n%s");
        msgs[ERROR_WOULD_LOSE_ORPHANED_OVERWRITTEN] =
-               _("The following Working tree files would be overwritten by sparse checkout update:\n%s");
+               _("The following working tree files would be overwritten by sparse checkout update:\n%s");
        msgs[ERROR_WOULD_LOSE_ORPHANED_REMOVED] =
-               _("The following Working tree files would be removed by sparse checkout update:\n%s");
+               _("The following working tree files would be removed by sparse checkout update:\n%s");
 
        opts->show_all_errors = 1;
        /* rejected paths may not have a static buffer */
@@ -172,7 +207,7 @@ static int add_rejected_path(struct unpack_trees_options *o,
                             const char *path)
 {
        if (!o->show_all_errors)
-               return error(ERRORMSG(o, e), path);
+               return error(ERRORMSG(o, e), super_prefixed(path));
 
        /*
         * Otherwise, insert in a list for future display by
@@ -196,7 +231,7 @@ static void display_error_msgs(struct unpack_trees_options *o)
                        something_displayed = 1;
                        for (i = 0; i < rejects->nr; i++)
                                strbuf_addf(&path, "\t%s\n", rejects->items[i].string);
-                       error(ERRORMSG(o, e), path.buf);
+                       error(ERRORMSG(o, e), super_prefixed(path.buf));
                        strbuf_release(&path);
                }
                string_list_clear(rejects, 0);
@@ -218,29 +253,42 @@ static void unlink_entry(const struct cache_entry *ce)
        schedule_dir_for_removal(ce->name, ce_namelen(ce));
 }
 
-static struct checkout state;
-static int check_updates(struct unpack_trees_options *o)
+static struct progress *get_progress(struct unpack_trees_options *o)
 {
        unsigned cnt = 0, total = 0;
+       struct index_state *index = &o->result;
+
+       if (!o->update || !o->verbose_update)
+               return NULL;
+
+       for (; cnt < index->cache_nr; cnt++) {
+               const struct cache_entry *ce = index->cache[cnt];
+               if (ce->ce_flags & (CE_UPDATE | CE_WT_REMOVE))
+                       total++;
+       }
+
+       return start_progress_delay(_("Checking out files"),
+                                   total, 50, 1);
+}
+
+static int check_updates(struct unpack_trees_options *o)
+{
+       unsigned cnt = 0;
+       int errs = 0;
        struct progress *progress = NULL;
        struct index_state *index = &o->result;
+       struct checkout state = CHECKOUT_INIT;
        int i;
-       int errs = 0;
 
-       if (o->update && o->verbose_update) {
-               for (total = cnt = 0; cnt < index->cache_nr; cnt++) {
-                       const struct cache_entry *ce = index->cache[cnt];
-                       if (ce->ce_flags & (CE_UPDATE | CE_WT_REMOVE))
-                               total++;
-               }
+       state.force = 1;
+       state.quiet = 1;
+       state.refresh_cache = 1;
+       state.istate = index;
 
-               progress = start_progress_delay(_("Checking out files"),
-                                               total, 50, 1);
-               cnt = 0;
-       }
+       progress = get_progress(o);
 
        if (o->update)
-               git_attr_set_direction(GIT_ATTR_CHECKOUT, &o->result);
+               git_attr_set_direction(GIT_ATTR_CHECKOUT, index);
        for (i = 0; i < index->cache_nr; i++) {
                const struct cache_entry *ce = index->cache[i];
 
@@ -248,10 +296,9 @@ static int check_updates(struct unpack_trees_options *o)
                        display_progress(progress, ++cnt);
                        if (o->update && !o->dry_run)
                                unlink_entry(ce);
-                       continue;
                }
        }
-       remove_marked_cache_entries(&o->result);
+       remove_marked_cache_entries(index);
        remove_scheduled_dirs();
 
        for (i = 0; i < index->cache_nr; i++) {
@@ -625,7 +672,7 @@ static struct cache_entry *create_ce_entry(const struct traverse_info *info, con
        ce->ce_mode = create_ce_mode(n->mode);
        ce->ce_flags = create_ce_flags(stage);
        ce->ce_namelen = len;
-       hashcpy(ce->sha1, n->oid->hash);
+       oidcpy(&ce->oid, n->oid);
        make_traverse_path(ce->name, info, n);
 
        return ce;
@@ -1097,12 +1144,6 @@ int unpack_trees(unsigned len, struct tree_desc *t, struct unpack_trees_options
 
        if (len > MAX_UNPACK_TREES)
                die("unpack_trees takes at most %d trees", MAX_UNPACK_TREES);
-       memset(&state, 0, sizeof(state));
-       state.base_dir = "";
-       state.force = 1;
-       state.quiet = 1;
-       state.refresh_cache = 1;
-       state.istate = &o->result;
 
        memset(&el, 0, sizeof(el));
        if (!core_apply_sparse_checkout || !o->update)
@@ -1287,7 +1328,7 @@ static int same(const struct cache_entry *a, const struct cache_entry *b)
        if ((a->ce_flags | b->ce_flags) & CE_CONFLICTED)
                return 0;
        return a->ce_mode == b->ce_mode &&
-              !hashcmp(a->sha1, b->sha1);
+              !oidcmp(&a->oid, &b->oid);
 }
 
 
@@ -1393,7 +1434,7 @@ static int verify_clean_subdirectory(const struct cache_entry *ce,
                /* If we are not going to update the submodule, then
                 * we don't care.
                 */
-               if (!hashcmp(sha1, ce->sha1))
+               if (!hashcmp(sha1, ce->oid.hash))
                        return 0;
                return verify_clean_submodule(ce, error_type, o);
        }
@@ -1665,7 +1706,7 @@ static void show_stage_entry(FILE *o,
                fprintf(o, "%s%06o %s %d\t%s\n",
                        label,
                        ce->ce_mode,
-                       sha1_to_hex(ce->sha1),
+                       oid_to_hex(&ce->oid),
                        ce_stage(ce),
                        ce->name);
 }
@@ -1919,7 +1960,9 @@ int bind_merge(const struct cache_entry * const *src,
                             o->merge_size);
        if (a && old)
                return o->gently ? -1 :
-                       error(ERRORMSG(o, ERROR_BIND_OVERLAP), a->name, old->name);
+                       error(ERRORMSG(o, ERROR_BIND_OVERLAP),
+                             super_prefixed(a->name),
+                             super_prefixed(old->name));
        if (!a)
                return keep_entry(old, o);
        else