Imported Upstream version 2.15.4
[platform/upstream/git.git] / revision.c
index 5dfb322..d167223 100644 (file)
@@ -19,6 +19,9 @@
 #include "dir.h"
 #include "cache-tree.h"
 #include "bisect.h"
+#include "packfile.h"
+#include "worktree.h"
+#include "argv-array.h"
 
 volatile show_early_output_fn_t show_early_output;
 
@@ -59,10 +62,10 @@ static void mark_tree_contents_uninteresting(struct tree *tree)
        while (tree_entry(&desc, &entry)) {
                switch (object_type(entry.mode)) {
                case OBJ_TREE:
-                       mark_tree_uninteresting(lookup_tree(entry.oid->hash));
+                       mark_tree_uninteresting(lookup_tree(entry.oid));
                        break;
                case OBJ_BLOB:
-                       mark_blob_uninteresting(lookup_blob(entry.oid->hash));
+                       mark_blob_uninteresting(lookup_blob(entry.oid));
                        break;
                default:
                        /* Subproject commit - not in this repository */
@@ -148,16 +151,14 @@ static void add_pending_object_with_path(struct rev_info *revs,
        if (revs->reflog_info && obj->type == OBJ_COMMIT) {
                struct strbuf buf = STRBUF_INIT;
                int len = interpret_branch_name(name, 0, &buf, 0);
-               int st;
 
                if (0 < len && name[len] && buf.len)
                        strbuf_addstr(&buf, name + len);
-               st = add_reflog_for_walk(revs->reflog_info,
-                                        (struct commit *)obj,
-                                        buf.buf[0] ? buf.buf: name);
+               add_reflog_for_walk(revs->reflog_info,
+                                   (struct commit *)obj,
+                                   buf.buf[0] ? buf.buf: name);
                strbuf_release(&buf);
-               if (st)
-                       return;
+               return; /* do not add the commit itself */
        }
        add_object_array_with_path(obj, name, &revs->pending, mode, path);
 }
@@ -177,23 +178,23 @@ void add_pending_object(struct rev_info *revs,
 
 void add_head_to_pending(struct rev_info *revs)
 {
-       unsigned char sha1[20];
+       struct object_id oid;
        struct object *obj;
-       if (get_sha1("HEAD", sha1))
+       if (get_oid("HEAD", &oid))
                return;
-       obj = parse_object(sha1);
+       obj = parse_object(&oid);
        if (!obj)
                return;
        add_pending_object(revs, obj, "HEAD");
 }
 
 static struct object *get_reference(struct rev_info *revs, const char *name,
-                                   const unsigned char *sha1,
+                                   const struct object_id *oid,
                                    unsigned int flags)
 {
        struct object *object;
 
-       object = parse_object(sha1);
+       object = parse_object(oid);
        if (!object) {
                if (revs->ignore_missing)
                        return object;
@@ -203,10 +204,10 @@ static struct object *get_reference(struct rev_info *revs, const char *name,
        return object;
 }
 
-void add_pending_sha1(struct rev_info *revs, const char *name,
-                     const unsigned char *sha1, unsigned int flags)
+void add_pending_oid(struct rev_info *revs, const char *name,
+                     const struct object_id *oid, unsigned int flags)
 {
-       struct object *object = get_reference(revs, name, sha1, flags);
+       struct object *object = get_reference(revs, name, oid, flags);
        add_pending_object(revs, object, name);
 }
 
@@ -228,7 +229,7 @@ static struct commit *handle_commit(struct rev_info *revs,
                        add_pending_object(revs, object, tag->tag);
                if (!tag->tagged)
                        die("bad tag");
-               object = parse_object(tag->tagged->oid.hash);
+               object = parse_object(&tag->tagged->oid);
                if (!object) {
                        if (revs->ignore_missing_links || (flags & UNINTERESTING))
                                return NULL;
@@ -401,8 +402,8 @@ static int tree_difference = REV_TREE_SAME;
 
 static void file_add_remove(struct diff_options *options,
                    int addremove, unsigned mode,
-                   const unsigned char *sha1,
-                   int sha1_valid,
+                   const struct object_id *oid,
+                   int oid_valid,
                    const char *fullpath, unsigned dirty_submodule)
 {
        int diff = addremove == '+' ? REV_TREE_NEW : REV_TREE_OLD;
@@ -414,9 +415,9 @@ static void file_add_remove(struct diff_options *options,
 
 static void file_change(struct diff_options *options,
                 unsigned old_mode, unsigned new_mode,
-                const unsigned char *old_sha1,
-                const unsigned char *new_sha1,
-                int old_sha1_valid, int new_sha1_valid,
+                const struct object_id *old_oid,
+                const struct object_id *new_oid,
+                int old_oid_valid, int new_oid_valid,
                 const char *fullpath,
                 unsigned old_dirty_submodule, unsigned new_dirty_submodule)
 {
@@ -455,7 +456,7 @@ static int rev_compare_tree(struct rev_info *revs,
 
        tree_difference = REV_TREE_SAME;
        DIFF_OPT_CLR(&revs->pruning, HAS_CHANGES);
-       if (diff_tree_sha1(t1->object.oid.hash, t2->object.oid.hash, "",
+       if (diff_tree_oid(&t1->object.oid, &t2->object.oid, "",
                           &revs->pruning) < 0)
                return REV_TREE_DIFFERENT;
        return tree_difference;
@@ -471,7 +472,7 @@ static int rev_same_tree_as_empty(struct rev_info *revs, struct commit *commit)
 
        tree_difference = REV_TREE_SAME;
        DIFF_OPT_CLR(&revs->pruning, HAS_CHANGES);
-       retval = diff_tree_sha1(NULL, t1->object.oid.hash, "", &revs->pruning);
+       retval = diff_tree_oid(NULL, &t1->object.oid, "", &revs->pruning);
 
        return retval >= 0 && (tree_difference == REV_TREE_SAME);
 }
@@ -884,7 +885,7 @@ static void cherry_pick_list(struct commit_list *list, struct rev_info *revs)
 /* How many extra uninteresting commits we want to see.. */
 #define SLOP 5
 
-static int still_interesting(struct commit_list *src, unsigned long date, int slop,
+static int still_interesting(struct commit_list *src, timestamp_t date, int slop,
                             struct commit **interesting_cache)
 {
        /*
@@ -1018,7 +1019,7 @@ static void limit_left_right(struct commit_list *list, struct rev_info *revs)
 static int limit_list(struct rev_info *revs)
 {
        int slop = SLOP;
-       unsigned long date = ~0ul;
+       timestamp_t date = TIME_MAX;
        struct commit_list *list = revs->commits;
        struct commit_list *newlist = NULL;
        struct commit_list **p = &newlist;
@@ -1105,7 +1106,7 @@ static void add_rev_cmdline(struct rev_info *revs,
                            unsigned flags)
 {
        struct rev_cmdline_info *info = &revs->cmdline;
-       int nr = info->nr;
+       unsigned int nr = info->nr;
 
        ALLOC_GROW(info->rev, nr + 1, info->alloc);
        info->rev[nr].item = item;
@@ -1133,6 +1134,7 @@ struct all_refs_cb {
        int warned_bad_reflog;
        struct rev_info *all_revs;
        const char *name_for_errormsg;
+       struct ref_store *refs;
 };
 
 int ref_excluded(struct string_list *ref_excludes, const char *path)
@@ -1142,7 +1144,7 @@ int ref_excluded(struct string_list *ref_excludes, const char *path)
        if (!ref_excludes)
                return 0;
        for_each_string_list_item(item, ref_excludes) {
-               if (!wildmatch(item->string, path, 0, NULL))
+               if (!wildmatch(item->string, path, 0))
                        return 1;
        }
        return 0;
@@ -1157,9 +1159,9 @@ static int handle_one_ref(const char *path, const struct object_id *oid,
        if (ref_excluded(cb->all_revs->ref_excludes, path))
            return 0;
 
-       object = get_reference(cb->all_revs, path, oid->hash, cb->all_flags);
+       object = get_reference(cb->all_revs, path, oid, cb->all_flags);
        add_rev_cmdline(cb->all_revs, object, path, REV_CMD_REF, cb->all_flags);
-       add_pending_sha1(cb->all_revs, path, oid->hash, cb->all_flags);
+       add_pending_oid(cb->all_revs, path, oid, cb->all_flags);
        return 0;
 }
 
@@ -1168,6 +1170,8 @@ static void init_all_refs_cb(struct all_refs_cb *cb, struct rev_info *revs,
 {
        cb->all_revs = revs;
        cb->all_flags = flags;
+       revs->rev_input_given = 1;
+       cb->refs = NULL;
 }
 
 void clear_ref_exclusion(struct string_list **ref_excludes_p)
@@ -1188,19 +1192,26 @@ void add_ref_exclusion(struct string_list **ref_excludes_p, const char *exclude)
        string_list_append(*ref_excludes_p, exclude);
 }
 
-static void handle_refs(const char *submodule, struct rev_info *revs, unsigned flags,
-               int (*for_each)(const char *, each_ref_fn, void *))
+static void handle_refs(struct ref_store *refs,
+                       struct rev_info *revs, unsigned flags,
+                       int (*for_each)(struct ref_store *, each_ref_fn, void *))
 {
        struct all_refs_cb cb;
+
+       if (!refs) {
+               /* this could happen with uninitialized submodules */
+               return;
+       }
+
        init_all_refs_cb(&cb, revs, flags);
-       for_each(submodule, handle_one_ref, &cb);
+       for_each(refs, handle_one_ref, &cb);
 }
 
 static void handle_one_reflog_commit(struct object_id *oid, void *cb_data)
 {
        struct all_refs_cb *cb = cb_data;
        if (!is_null_oid(oid)) {
-               struct object *o = parse_object(oid->hash);
+               struct object *o = parse_object(oid);
                if (o) {
                        o->flags |= cb->all_flags;
                        /* ??? CMDLINEFLAGS ??? */
@@ -1215,7 +1226,7 @@ static void handle_one_reflog_commit(struct object_id *oid, void *cb_data)
 }
 
 static int handle_one_reflog_ent(struct object_id *ooid, struct object_id *noid,
-               const char *email, unsigned long timestamp, int tz,
+               const char *email, timestamp_t timestamp, int tz,
                const char *message, void *cb_data)
 {
        handle_one_reflog_commit(ooid, cb_data);
@@ -1229,17 +1240,41 @@ static int handle_one_reflog(const char *path, const struct object_id *oid,
        struct all_refs_cb *cb = cb_data;
        cb->warned_bad_reflog = 0;
        cb->name_for_errormsg = path;
-       for_each_reflog_ent(path, handle_one_reflog_ent, cb_data);
+       refs_for_each_reflog_ent(cb->refs, path,
+                                handle_one_reflog_ent, cb_data);
        return 0;
 }
 
+static void add_other_reflogs_to_pending(struct all_refs_cb *cb)
+{
+       struct worktree **worktrees, **p;
+
+       worktrees = get_worktrees(0);
+       for (p = worktrees; *p; p++) {
+               struct worktree *wt = *p;
+
+               if (wt->is_current)
+                       continue;
+
+               cb->refs = get_worktree_ref_store(wt);
+               refs_for_each_reflog(cb->refs,
+                                    handle_one_reflog,
+                                    cb);
+       }
+       free_worktrees(worktrees);
+}
+
 void add_reflogs_to_pending(struct rev_info *revs, unsigned flags)
 {
        struct all_refs_cb cb;
 
        cb.all_revs = revs;
        cb.all_flags = flags;
+       cb.refs = get_main_ref_store();
        for_each_reflog(handle_one_reflog, &cb);
+
+       if (!revs->single_worktree)
+               add_other_reflogs_to_pending(&cb);
 }
 
 static void add_cache_tree(struct cache_tree *it, struct rev_info *revs,
@@ -1249,7 +1284,7 @@ static void add_cache_tree(struct cache_tree *it, struct rev_info *revs,
        int i;
 
        if (it->entry_count >= 0) {
-               struct tree *tree = lookup_tree(it->sha1);
+               struct tree *tree = lookup_tree(&it->oid);
                add_pending_object_with_path(revs, &tree->object, "",
                                             040000, path->buf);
        }
@@ -1263,36 +1298,62 @@ static void add_cache_tree(struct cache_tree *it, struct rev_info *revs,
 
 }
 
-void add_index_objects_to_pending(struct rev_info *revs, unsigned flags)
+static void do_add_index_objects_to_pending(struct rev_info *revs,
+                                           struct index_state *istate)
 {
        int i;
 
-       read_cache();
-       for (i = 0; i < active_nr; i++) {
-               struct cache_entry *ce = active_cache[i];
+       for (i = 0; i < istate->cache_nr; i++) {
+               struct cache_entry *ce = istate->cache[i];
                struct blob *blob;
 
                if (S_ISGITLINK(ce->ce_mode))
                        continue;
 
-               blob = lookup_blob(ce->oid.hash);
+               blob = lookup_blob(&ce->oid);
                if (!blob)
                        die("unable to add index blob to traversal");
                add_pending_object_with_path(revs, &blob->object, "",
                                             ce->ce_mode, ce->name);
        }
 
-       if (active_cache_tree) {
+       if (istate->cache_tree) {
                struct strbuf path = STRBUF_INIT;
-               add_cache_tree(active_cache_tree, revs, &path);
+               add_cache_tree(istate->cache_tree, revs, &path);
                strbuf_release(&path);
        }
 }
 
+void add_index_objects_to_pending(struct rev_info *revs, unsigned int flags)
+{
+       struct worktree **worktrees, **p;
+
+       read_cache();
+       do_add_index_objects_to_pending(revs, &the_index);
+
+       if (revs->single_worktree)
+               return;
+
+       worktrees = get_worktrees(0);
+       for (p = worktrees; *p; p++) {
+               struct worktree *wt = *p;
+               struct index_state istate = { NULL };
+
+               if (wt->is_current)
+                       continue; /* current index already taken care of */
+
+               if (read_index_from(&istate,
+                                   worktree_git_path(wt, "index")) > 0)
+                       do_add_index_objects_to_pending(revs, &istate);
+               discard_index(&istate);
+       }
+       free_worktrees(worktrees);
+}
+
 static int add_parents_only(struct rev_info *revs, const char *arg_, int flags,
                            int exclude_parent)
 {
-       unsigned char sha1[20];
+       struct object_id oid;
        struct object *it;
        struct commit *commit;
        struct commit_list *parents;
@@ -1303,17 +1364,17 @@ static int add_parents_only(struct rev_info *revs, const char *arg_, int flags,
                flags ^= UNINTERESTING | BOTTOM;
                arg++;
        }
-       if (get_sha1_committish(arg, sha1))
+       if (get_oid_committish(arg, &oid))
                return 0;
        while (1) {
-               it = get_reference(revs, arg, sha1, 0);
+               it = get_reference(revs, arg, &oid, 0);
                if (!it && revs->ignore_missing)
                        return 0;
                if (it->type != OBJ_TAG)
                        break;
                if (!((struct tag*)it)->tagged)
                        return 0;
-               hashcpy(sha1, ((struct tag*)it)->tagged->oid.hash);
+               oidcpy(&oid, &((struct tag*)it)->tagged->oid);
        }
        if (it->type != OBJ_COMMIT)
                return 0;
@@ -1362,7 +1423,6 @@ void init_revisions(struct rev_info *revs, const char *prefix)
        init_grep_defaults();
        grep_init(&revs->grep_filter, prefix);
        revs->grep_filter.status_only = 1;
-       revs->grep_filter.regflags = REG_NEWLINE;
 
        diff_setup(&revs->diffopt);
        if (prefix && !revs->diffopt.prefix) {
@@ -1389,16 +1449,16 @@ static void prepare_show_merge(struct rev_info *revs)
 {
        struct commit_list *bases;
        struct commit *head, *other;
-       unsigned char sha1[20];
+       struct object_id oid;
        const char **prune = NULL;
        int i, prune_num = 1; /* counting terminating NULL */
 
-       if (get_sha1("HEAD", sha1))
+       if (get_oid("HEAD", &oid))
                die("--merge without HEAD?");
-       head = lookup_commit_or_die(sha1, "HEAD");
-       if (get_sha1("MERGE_HEAD", sha1))
+       head = lookup_commit_or_die(&oid, "HEAD");
+       if (get_oid("MERGE_HEAD", &oid))
                die("--merge without MERGE_HEAD?");
-       other = lookup_commit_or_die(sha1, "MERGE_HEAD");
+       other = lookup_commit_or_die(&oid, "MERGE_HEAD");
        add_pending_object(revs, &head->object, "HEAD");
        add_pending_object(revs, &other->object, "MERGE_HEAD");
        bases = get_merge_bases(head, other);
@@ -1453,7 +1513,7 @@ static int handle_dotdot_1(const char *arg, char *dotdot,
        unsigned int a_flags, b_flags;
        int symmetric = 0;
        unsigned int flags_exclude = flags ^ (UNINTERESTING | BOTTOM);
-       unsigned int oc_flags = GET_SHA1_COMMITTISH | GET_SHA1_RECORD_PATH;
+       unsigned int oc_flags = GET_OID_COMMITTISH | GET_OID_RECORD_PATH;
 
        a_name = arg;
        if (!*a_name)
@@ -1467,8 +1527,8 @@ static int handle_dotdot_1(const char *arg, char *dotdot,
        if (!*b_name)
                b_name = "HEAD";
 
-       if (get_sha1_with_context(a_name, oc_flags, a_oid.hash, a_oc) ||
-           get_sha1_with_context(b_name, oc_flags, b_oid.hash, b_oc))
+       if (get_oid_with_context(a_name, oc_flags, &a_oid, a_oc) ||
+           get_oid_with_context(b_name, oc_flags, &b_oid, b_oc))
                return -1;
 
        if (!cant_be_filename) {
@@ -1477,8 +1537,8 @@ static int handle_dotdot_1(const char *arg, char *dotdot,
                *dotdot = '\0';
        }
 
-       a_obj = parse_object(a_oid.hash);
-       b_obj = parse_object(b_oid.hash);
+       a_obj = parse_object(&a_oid);
+       b_obj = parse_object(&b_oid);
        if (!a_obj || !b_obj)
                return dotdot_missing(arg, dotdot, revs, symmetric);
 
@@ -1491,8 +1551,8 @@ static int handle_dotdot_1(const char *arg, char *dotdot,
                struct commit *a, *b;
                struct commit_list *exclude;
 
-               a = lookup_commit_reference(a_obj->oid.hash);
-               b = lookup_commit_reference(b_obj->oid.hash);
+               a = lookup_commit_reference(&a_obj->oid);
+               b = lookup_commit_reference(&b_obj->oid);
                if (!a || !b)
                        return dotdot_missing(arg, dotdot, revs, symmetric);
 
@@ -1545,11 +1605,11 @@ int handle_revision_arg(const char *arg_, struct rev_info *revs, int flags, unsi
        struct object_context oc;
        char *mark;
        struct object *object;
-       unsigned char sha1[20];
+       struct object_id oid;
        int local_flags;
        const char *arg = arg_;
        int cant_be_filename = revarg_opt & REVARG_CANNOT_BE_FILENAME;
-       unsigned get_sha1_flags = GET_SHA1_RECORD_PATH;
+       unsigned get_sha1_flags = GET_OID_RECORD_PATH;
 
        flags = flags & UNINTERESTING ? flags | BOTTOM : flags & ~BOTTOM;
 
@@ -1600,44 +1660,28 @@ int handle_revision_arg(const char *arg_, struct rev_info *revs, int flags, unsi
        }
 
        if (revarg_opt & REVARG_COMMITTISH)
-               get_sha1_flags |= GET_SHA1_COMMITTISH;
+               get_sha1_flags |= GET_OID_COMMITTISH;
 
-       if (get_sha1_with_context(arg, get_sha1_flags, sha1, &oc))
+       if (get_oid_with_context(arg, get_sha1_flags, &oid, &oc))
                return revs->ignore_missing ? 0 : -1;
        if (!cant_be_filename)
                verify_non_filename(revs->prefix, arg);
-       object = get_reference(revs, arg, sha1, flags ^ local_flags);
+       object = get_reference(revs, arg, &oid, flags ^ local_flags);
        add_rev_cmdline(revs, object, arg_, REV_CMD_REV, flags ^ local_flags);
        add_pending_object_with_path(revs, object, arg, oc.mode, oc.path);
        free(oc.path);
        return 0;
 }
 
-struct cmdline_pathspec {
-       int alloc;
-       int nr;
-       const char **path;
-};
-
-static void append_prune_data(struct cmdline_pathspec *prune, const char **av)
-{
-       while (*av) {
-               ALLOC_GROW(prune->path, prune->nr + 1, prune->alloc);
-               prune->path[prune->nr++] = *(av++);
-       }
-}
-
 static void read_pathspec_from_stdin(struct rev_info *revs, struct strbuf *sb,
-                                    struct cmdline_pathspec *prune)
+                                    struct argv_array *prune)
 {
-       while (strbuf_getline(sb, stdin) != EOF) {
-               ALLOC_GROW(prune->path, prune->nr + 1, prune->alloc);
-               prune->path[prune->nr++] = xstrdup(sb->buf);
-       }
+       while (strbuf_getline(sb, stdin) != EOF)
+               argv_array_push(prune, sb->buf);
 }
 
 static void read_revisions_from_stdin(struct rev_info *revs,
-                                     struct cmdline_pathspec *prune)
+                                     struct argv_array *prune)
 {
        struct strbuf sb;
        int seen_dashdash = 0;
@@ -2021,11 +2065,11 @@ static int handle_revision_opt(struct rev_info *revs, int argc, const char **arg
        } else if (!strcmp(arg, "--extended-regexp") || !strcmp(arg, "-E")) {
                revs->grep_filter.pattern_type_option = GREP_PATTERN_TYPE_ERE;
        } else if (!strcmp(arg, "--regexp-ignore-case") || !strcmp(arg, "-i")) {
-               revs->grep_filter.regflags |= REG_ICASE;
+               revs->grep_filter.ignore_case = 1;
                DIFF_OPT_SET(&revs->diffopt, PICKAXE_IGNORE_CASE);
        } else if (!strcmp(arg, "--fixed-strings") || !strcmp(arg, "-F")) {
                revs->grep_filter.pattern_type_option = GREP_PATTERN_TYPE_FIXED;
-       } else if (!strcmp(arg, "--perl-regexp")) {
+       } else if (!strcmp(arg, "--perl-regexp") || !strcmp(arg, "-P")) {
                revs->grep_filter.pattern_type_option = GREP_PATTERN_TYPE_PCRE;
        } else if (!strcmp(arg, "--all-match")) {
                revs->grep_filter.all_match = 1;
@@ -2070,23 +2114,25 @@ void parse_revision_opt(struct rev_info *revs, struct parse_opt_ctx_t *ctx,
        ctx->argc -= n;
 }
 
-static int for_each_bisect_ref(const char *submodule, each_ref_fn fn, void *cb_data, const char *term) {
+static int for_each_bisect_ref(struct ref_store *refs, each_ref_fn fn,
+                              void *cb_data, const char *term)
+{
        struct strbuf bisect_refs = STRBUF_INIT;
        int status;
        strbuf_addf(&bisect_refs, "refs/bisect/%s", term);
-       status = for_each_ref_in_submodule(submodule, bisect_refs.buf, fn, cb_data);
+       status = refs_for_each_fullref_in(refs, bisect_refs.buf, fn, cb_data, 0);
        strbuf_release(&bisect_refs);
        return status;
 }
 
-static int for_each_bad_bisect_ref(const char *submodule, each_ref_fn fn, void *cb_data)
+static int for_each_bad_bisect_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data)
 {
-       return for_each_bisect_ref(submodule, fn, cb_data, term_bad);
+       return for_each_bisect_ref(refs, fn, cb_data, term_bad);
 }
 
-static int for_each_good_bisect_ref(const char *submodule, each_ref_fn fn, void *cb_data)
+static int for_each_good_bisect_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data)
 {
-       return for_each_bisect_ref(submodule, fn, cb_data, term_good);
+       return for_each_bisect_ref(refs, fn, cb_data, term_good);
 }
 
 static int handle_revision_pseudo_opt(const char *submodule,
@@ -2095,8 +2141,22 @@ static int handle_revision_pseudo_opt(const char *submodule,
 {
        const char *arg = argv[0];
        const char *optarg;
+       struct ref_store *refs;
        int argcount;
 
+       if (submodule) {
+               /*
+                * We need some something like get_submodule_worktrees()
+                * before we can go through all worktrees of a submodule,
+                * .e.g with adding all HEADs from --all, which is not
+                * supported right now, so stick to single worktree.
+                */
+               if (!revs->single_worktree)
+                       die("BUG: --single-worktree cannot be used together with submodule");
+               refs = get_submodule_ref_store(submodule);
+       } else
+               refs = get_main_ref_store();
+
        /*
         * NOTE!
         *
@@ -2108,22 +2168,29 @@ static int handle_revision_pseudo_opt(const char *submodule,
         * register it in the list at the top of handle_revision_opt.
         */
        if (!strcmp(arg, "--all")) {
-               handle_refs(submodule, revs, *flags, for_each_ref_submodule);
-               handle_refs(submodule, revs, *flags, head_ref_submodule);
+               handle_refs(refs, revs, *flags, refs_for_each_ref);
+               handle_refs(refs, revs, *flags, refs_head_ref);
+               if (!revs->single_worktree) {
+                       struct all_refs_cb cb;
+
+                       init_all_refs_cb(&cb, revs, *flags);
+                       other_head_refs(handle_one_ref, &cb);
+               }
                clear_ref_exclusion(&revs->ref_excludes);
        } else if (!strcmp(arg, "--branches")) {
-               handle_refs(submodule, revs, *flags, for_each_branch_ref_submodule);
+               handle_refs(refs, revs, *flags, refs_for_each_branch_ref);
                clear_ref_exclusion(&revs->ref_excludes);
        } else if (!strcmp(arg, "--bisect")) {
                read_bisect_terms(&term_bad, &term_good);
-               handle_refs(submodule, revs, *flags, for_each_bad_bisect_ref);
-               handle_refs(submodule, revs, *flags ^ (UNINTERESTING | BOTTOM), for_each_good_bisect_ref);
+               handle_refs(refs, revs, *flags, for_each_bad_bisect_ref);
+               handle_refs(refs, revs, *flags ^ (UNINTERESTING | BOTTOM),
+                           for_each_good_bisect_ref);
                revs->bisect = 1;
        } else if (!strcmp(arg, "--tags")) {
-               handle_refs(submodule, revs, *flags, for_each_tag_ref_submodule);
+               handle_refs(refs, revs, *flags, refs_for_each_tag_ref);
                clear_ref_exclusion(&revs->ref_excludes);
        } else if (!strcmp(arg, "--remotes")) {
-               handle_refs(submodule, revs, *flags, for_each_remote_ref_submodule);
+               handle_refs(refs, revs, *flags, refs_for_each_remote_ref);
                clear_ref_exclusion(&revs->ref_excludes);
        } else if ((argcount = parse_long_opt("glob", argv, &optarg))) {
                struct all_refs_cb cb;
@@ -2170,6 +2237,8 @@ static int handle_revision_pseudo_opt(const char *submodule,
                        return error("invalid argument to --no-walk");
        } else if (!strcmp(arg, "--do-walk")) {
                revs->no_walk = 0;
+       } else if (!strcmp(arg, "--single-worktree")) {
+               revs->single_worktree = 1;
        } else {
                return 0;
        }
@@ -2179,11 +2248,10 @@ static int handle_revision_pseudo_opt(const char *submodule,
 
 static void NORETURN diagnose_missing_default(const char *def)
 {
-       unsigned char sha1[20];
        int flags;
        const char *refname;
 
-       refname = resolve_ref_unsafe(def, 0, sha1, &flags);
+       refname = resolve_ref_unsafe(def, 0, NULL, &flags);
        if (!refname || !(flags & REF_ISSYMREF) || (flags & REF_ISBROKEN))
                die(_("your current branch appears to be broken"));
 
@@ -2202,10 +2270,9 @@ static void NORETURN diagnose_missing_default(const char *def)
 int setup_revisions(int argc, const char **argv, struct rev_info *revs, struct setup_revision_opt *opt)
 {
        int i, flags, left, seen_dashdash, read_from_stdin, got_rev_arg = 0, revarg_opt;
-       struct cmdline_pathspec prune_data;
+       struct argv_array prune_data = ARGV_ARRAY_INIT;
        const char *submodule = NULL;
 
-       memset(&prune_data, 0, sizeof(prune_data));
        if (opt)
                submodule = opt->submodule;
 
@@ -2221,7 +2288,7 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, struct s
                        argv[i] = NULL;
                        argc = i;
                        if (argv[i + 1])
-                               append_prune_data(&prune_data, argv + i + 1);
+                               argv_array_pushv(&prune_data, argv + i + 1);
                        seen_dashdash = 1;
                        break;
                }
@@ -2282,14 +2349,14 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, struct s
                        for (j = i; j < argc; j++)
                                verify_filename(revs->prefix, argv[j], j == i);
 
-                       append_prune_data(&prune_data, argv + i);
+                       argv_array_pushv(&prune_data, argv + i);
                        break;
                }
                else
                        got_rev_arg = 1;
        }
 
-       if (prune_data.nr) {
+       if (prune_data.argc) {
                /*
                 * If we need to introduce the magic "a lone ':' means no
                 * pathspec whatsoever", here is the place to do so.
@@ -2304,11 +2371,10 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, struct s
                 *      call init_pathspec() to set revs->prune_data here.
                 * }
                 */
-               ALLOC_GROW(prune_data.path, prune_data.nr + 1, prune_data.alloc);
-               prune_data.path[prune_data.nr++] = NULL;
                parse_pathspec(&revs->prune_data, 0, 0,
-                              revs->prefix, prune_data.path);
+                              revs->prefix, prune_data.argv);
        }
+       argv_array_clear(&prune_data);
 
        if (revs->def == NULL)
                revs->def = opt ? opt->def : NULL;
@@ -2316,13 +2382,13 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, struct s
                opt->tweak(revs, opt);
        if (revs->show_merge)
                prepare_show_merge(revs);
-       if (revs->def && !revs->pending.nr && !got_rev_arg) {
-               unsigned char sha1[20];
+       if (revs->def && !revs->pending.nr && !revs->rev_input_given && !got_rev_arg) {
+               struct object_id oid;
                struct object *object;
                struct object_context oc;
-               if (get_sha1_with_context(revs->def, 0, sha1, &oc))
+               if (get_oid_with_context(revs->def, 0, &oid, &oc))
                        diagnose_missing_default(revs->def);
-               object = get_reference(revs, revs->def, sha1, 0);
+               object = get_reference(revs, revs->def, &oid, 0);
                add_pending_object_with_mode(revs, object, revs->def, oc.mode);
        }
 
@@ -2365,6 +2431,8 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, struct s
 
        if (revs->reverse && revs->reflog_info)
                die("cannot combine --reverse with --walk-reflogs");
+       if (revs->reflog_info && revs->limited)
+               die("cannot combine --walk-reflogs with history-limiting options");
        if (revs->rewrite_parents && revs->children.name)
                die("cannot combine --parents and --children");
 
@@ -2938,7 +3006,7 @@ static int commit_match(struct commit *commit, struct rev_info *opt)
        if (opt->show_notes) {
                if (!buf.len)
                        strbuf_addstr(&buf, message);
-               format_display_notes(commit->object.oid.hash, &buf, encoding, 1);
+               format_display_notes(&commit->object.oid, &buf, encoding, 1);
        }
 
        /*
@@ -2964,6 +3032,18 @@ static inline int want_ancestry(const struct rev_info *revs)
        return (revs->rewrite_parents || revs->children.name);
 }
 
+/*
+ * Return a timestamp to be used for --since/--until comparisons for this
+ * commit, based on the revision options.
+ */
+static timestamp_t comparison_date(const struct rev_info *revs,
+                                  struct commit *commit)
+{
+       return revs->reflog_info ?
+               get_reflog_timestamp(revs->reflog_info) :
+               commit->date;
+}
+
 enum commit_action get_commit_action(struct rev_info *revs, struct commit *commit)
 {
        if (commit->object.flags & SHOWN)
@@ -2974,8 +3054,9 @@ enum commit_action get_commit_action(struct rev_info *revs, struct commit *commi
                return commit_show;
        if (commit->object.flags & UNINTERESTING)
                return commit_ignore;
-       if (revs->min_age != -1 && (commit->date > revs->min_age))
-               return commit_ignore;
+       if (revs->min_age != -1 &&
+           comparison_date(revs, commit) > revs->min_age)
+                       return commit_ignore;
        if (revs->min_parents || (revs->max_parents >= 0)) {
                int n = commit_list_count(commit->parents);
                if ((n < revs->min_parents) ||
@@ -3108,17 +3189,19 @@ static void track_linear(struct rev_info *revs, struct commit *commit)
 
 static struct commit *get_revision_1(struct rev_info *revs)
 {
-       if (!revs->commits)
-               return NULL;
+       while (1) {
+               struct commit *commit;
 
-       do {
-               struct commit *commit = pop_commit(&revs->commits);
+               if (revs->reflog_info)
+                       commit = next_reflog_entry(revs->reflog_info);
+               else
+                       commit = pop_commit(&revs->commits);
 
-               if (revs->reflog_info) {
-                       save_parents(revs, commit);
-                       fake_reflog_parent(revs->reflog_info, commit);
+               if (!commit)
+                       return NULL;
+
+               if (revs->reflog_info)
                        commit->object.flags &= ~(ADDED | SEEN | SHOWN);
-               }
 
                /*
                 * If we haven't done the list limiting, we need to look at
@@ -3127,9 +3210,12 @@ static struct commit *get_revision_1(struct rev_info *revs)
                 */
                if (!revs->limited) {
                        if (revs->max_age != -1 &&
-                           (commit->date < revs->max_age))
+                           comparison_date(revs, commit) < revs->max_age)
                                continue;
-                       if (add_parents_to_list(revs, commit, &revs->commits, NULL) < 0) {
+
+                       if (revs->reflog_info)
+                               try_to_simplify_commit(revs, commit);
+                       else if (add_parents_to_list(revs, commit, &revs->commits, NULL) < 0) {
                                if (!revs->ignore_missing_links)
                                        die("Failed to traverse parents of commit %s",
                                                oid_to_hex(&commit->object.oid));
@@ -3147,8 +3233,7 @@ static struct commit *get_revision_1(struct rev_info *revs)
                                track_linear(revs, commit);
                        return commit;
                }
-       } while (revs->commits);
-       return NULL;
+       }
 }
 
 /*