t1300: demonstrate that --replace-all can "invent" newlines
[gitweb.git] / revision.c
index f9a90d71d2008415e80b30c9e5d3b2743af5438f..e5e527bcf256e0d062ffaae2a3d6ac2a1e7373d6 100644 (file)
@@ -21,6 +21,7 @@
 #include "bisect.h"
 #include "packfile.h"
 #include "worktree.h"
+#include "argv-array.h"
 
 volatile show_early_output_fn_t show_early_output;
 
@@ -394,8 +395,16 @@ static struct commit *one_relevant_parent(const struct rev_info *revs,
  * if the whole diff is removal of old data, and otherwise
  * REV_TREE_DIFFERENT (of course if the trees are the same we
  * want REV_TREE_SAME).
- * That means that once we get to REV_TREE_DIFFERENT, we do not
- * have to look any further.
+ *
+ * The only time we care about the distinction is when
+ * remove_empty_trees is in effect, in which case we care only about
+ * whether the whole change is REV_TREE_NEW, or if there's another type
+ * of change. Which means we can stop the diff early in either of these
+ * cases:
+ *
+ *   1. We're not using remove_empty_trees at all.
+ *
+ *   2. We saw anything except REV_TREE_NEW.
  */
 static int tree_difference = REV_TREE_SAME;
 
@@ -406,10 +415,11 @@ static void file_add_remove(struct diff_options *options,
                    const char *fullpath, unsigned dirty_submodule)
 {
        int diff = addremove == '+' ? REV_TREE_NEW : REV_TREE_OLD;
+       struct rev_info *revs = options->change_fn_data;
 
        tree_difference |= diff;
-       if (tree_difference == REV_TREE_DIFFERENT)
-               DIFF_OPT_SET(options, HAS_CHANGES);
+       if (!revs->remove_empty_trees || tree_difference != REV_TREE_NEW)
+               options->flags.has_changes = 1;
 }
 
 static void file_change(struct diff_options *options,
@@ -421,7 +431,7 @@ static void file_change(struct diff_options *options,
                 unsigned old_dirty_submodule, unsigned new_dirty_submodule)
 {
        tree_difference = REV_TREE_DIFFERENT;
-       DIFF_OPT_SET(options, HAS_CHANGES);
+       options->flags.has_changes = 1;
 }
 
 static int rev_compare_tree(struct rev_info *revs,
@@ -454,7 +464,7 @@ static int rev_compare_tree(struct rev_info *revs,
        }
 
        tree_difference = REV_TREE_SAME;
-       DIFF_OPT_CLR(&revs->pruning, HAS_CHANGES);
+       revs->pruning.flags.has_changes = 0;
        if (diff_tree_oid(&t1->object.oid, &t2->object.oid, "",
                           &revs->pruning) < 0)
                return REV_TREE_DIFFERENT;
@@ -470,7 +480,7 @@ static int rev_same_tree_as_empty(struct rev_info *revs, struct commit *commit)
                return 0;
 
        tree_difference = REV_TREE_SAME;
-       DIFF_OPT_CLR(&revs->pruning, HAS_CHANGES);
+       revs->pruning.flags.has_changes = 0;
        retval = diff_tree_oid(NULL, &t1->object.oid, "", &revs->pruning);
 
        return retval >= 0 && (tree_difference == REV_TREE_SAME);
@@ -1045,14 +1055,9 @@ static int limit_list(struct rev_info *revs)
                        return -1;
                if (obj->flags & UNINTERESTING) {
                        mark_parents_uninteresting(commit);
-                       if (revs->show_all)
-                               p = &commit_list_insert(commit, p)->next;
                        slop = still_interesting(list, date, slop, &interesting_cache);
                        if (slop)
                                continue;
-                       /* If showing all, add the whole pending list to the end */
-                       if (revs->show_all)
-                               *p = list;
                        break;
                }
                if (revs->min_age != -1 && (commit->date > revs->min_age))
@@ -1105,7 +1110,7 @@ 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;
@@ -1342,7 +1347,8 @@ void add_index_objects_to_pending(struct rev_info *revs, unsigned int flags)
                        continue; /* current index already taken care of */
 
                if (read_index_from(&istate,
-                                   worktree_git_path(wt, "index")) > 0)
+                                   worktree_git_path(wt, "index"),
+                                   get_worktree_git_dir(wt)) > 0)
                        do_add_index_objects_to_pending(revs, &istate);
                discard_index(&istate);
        }
@@ -1402,10 +1408,11 @@ void init_revisions(struct rev_info *revs, const char *prefix)
        revs->abbrev = DEFAULT_ABBREV;
        revs->ignore_merges = 1;
        revs->simplify_history = 1;
-       DIFF_OPT_SET(&revs->pruning, RECURSIVE);
-       DIFF_OPT_SET(&revs->pruning, QUICK);
+       revs->pruning.flags.recursive = 1;
+       revs->pruning.flags.quick = 1;
        revs->pruning.add_remove = file_add_remove;
        revs->pruning.change = file_change;
+       revs->pruning.change_fn_data = revs;
        revs->sort_order = REV_SORT_IN_GRAPH_ORDER;
        revs->dense = 1;
        revs->prefix = prefix;
@@ -1672,31 +1679,15 @@ int handle_revision_arg(const char *arg_, struct rev_info *revs, int flags, unsi
        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;
@@ -1837,7 +1828,7 @@ static int handle_revision_opt(struct rev_info *revs, int argc, const char **arg
                revs->simplify_by_decoration = 1;
                revs->limited = 1;
                revs->prune = 1;
-               load_ref_decorations(DECORATE_SHORT_REFS);
+               load_ref_decorations(NULL, DECORATE_SHORT_REFS);
        } else if (!strcmp(arg, "--date-order")) {
                revs->sort_order = REV_SORT_BY_COMMIT_DATE;
                revs->topo_order = 1;
@@ -1858,8 +1849,8 @@ static int handle_revision_opt(struct rev_info *revs, int argc, const char **arg
                revs->dense = 1;
        } else if (!strcmp(arg, "--sparse")) {
                revs->dense = 0;
-       } else if (!strcmp(arg, "--show-all")) {
-               revs->show_all = 1;
+       } else if (!strcmp(arg, "--in-commit-order")) {
+               revs->tree_blobs_in_commit_order = 1;
        } else if (!strcmp(arg, "--remove-empty")) {
                revs->remove_empty_trees = 1;
        } else if (!strcmp(arg, "--merges")) {
@@ -1932,11 +1923,11 @@ static int handle_revision_opt(struct rev_info *revs, int argc, const char **arg
                die("--unpacked=<packfile> no longer supported.");
        } else if (!strcmp(arg, "-r")) {
                revs->diff = 1;
-               DIFF_OPT_SET(&revs->diffopt, RECURSIVE);
+               revs->diffopt.flags.recursive = 1;
        } else if (!strcmp(arg, "-t")) {
                revs->diff = 1;
-               DIFF_OPT_SET(&revs->diffopt, RECURSIVE);
-               DIFF_OPT_SET(&revs->diffopt, TREE_IN_RECURSIVE);
+               revs->diffopt.flags.recursive = 1;
+               revs->diffopt.flags.tree_in_recursive = 1;
        } else if (!strcmp(arg, "-m")) {
                revs->ignore_merges = 0;
        } else if (!strcmp(arg, "-c")) {
@@ -2081,7 +2072,7 @@ static int handle_revision_opt(struct rev_info *revs, int argc, const char **arg
                revs->grep_filter.pattern_type_option = GREP_PATTERN_TYPE_ERE;
        } else if (!strcmp(arg, "--regexp-ignore-case") || !strcmp(arg, "-i")) {
                revs->grep_filter.ignore_case = 1;
-               DIFF_OPT_SET(&revs->diffopt, PICKAXE_IGNORE_CASE);
+               revs->diffopt.flags.pickaxe_ignore_case = 1;
        } 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") || !strcmp(arg, "-P")) {
@@ -2263,11 +2254,10 @@ 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"));
 
@@ -2286,10 +2276,9 @@ 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;
 
@@ -2305,7 +2294,7 @@ 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;
                }
@@ -2366,14 +2355,14 @@ 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.
@@ -2388,11 +2377,10 @@ 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;
@@ -2417,7 +2405,7 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, struct s
        /* Pickaxe, diff-filter and rename following need diffs */
        if (revs->diffopt.pickaxe ||
            revs->diffopt.filter ||
-           DIFF_OPT_TST(&revs->diffopt, FOLLOW_RENAMES))
+           revs->diffopt.flags.follow_renames)
                revs->diff = 1;
 
        if (revs->topo_order)
@@ -2426,7 +2414,7 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, struct s
        if (revs->prune_data.nr) {
                copy_pathspec(&revs->pruning.pathspec, &revs->prune_data);
                /* Can't prune commits with rename following: the paths change.. */
-               if (!DIFF_OPT_TST(&revs->diffopt, FOLLOW_RENAMES))
+               if (!revs->diffopt.flags.follow_renames)
                        revs->prune = 1;
                if (!revs->full_diff)
                        copy_pathspec(&revs->diffopt.pathspec,
@@ -2868,8 +2856,7 @@ int prepare_revision_walk(struct rev_info *revs)
                        }
                }
        }
-       if (!revs->leak_pending)
-               object_array_clear(&old_pending);
+       object_array_clear(&old_pending);
 
        /* Signal whether we need per-parent treesame decoration */
        if (revs->simplify_merges ||
@@ -3068,8 +3055,6 @@ enum commit_action get_commit_action(struct rev_info *revs, struct commit *commi
                return commit_ignore;
        if (revs->unpacked && has_sha1_pack(commit->object.oid.hash))
                return commit_ignore;
-       if (revs->show_all)
-               return commit_show;
        if (commit->object.flags & UNINTERESTING)
                return commit_ignore;
        if (revs->min_age != -1 &&
@@ -3168,7 +3153,6 @@ enum commit_action simplify_commit(struct rev_info *revs, struct commit *commit)
        enum commit_action action = get_commit_action(revs, commit);
 
        if (action == commit_show &&
-           !revs->show_all &&
            revs->prune && revs->dense && want_ancestry(revs)) {
                /*
                 * --full-diff on simplified parents is no good: it