wt-status.c: remove implicit dependency on the_index
[gitweb.git] / builtin / log.c
index 94ee177d56d6ff9c82b02ebfb2d27cf789527974..061d4fd864f3fb479e2877e3bbf25928ad1fb9d3 100644 (file)
@@ -7,6 +7,7 @@
 #include "cache.h"
 #include "config.h"
 #include "refs.h"
+#include "object-store.h"
 #include "color.h"
 #include "commit.h"
 #include "diff.h"
 #include "mailmap.h"
 #include "gpg-interface.h"
 #include "progress.h"
+#include "commit-slab.h"
+#include "repository.h"
+#include "commit-reach.h"
+#include "interdiff.h"
+#include "range-diff.h"
 
 #define MAIL_DEFAULT_WRAP 72
 
@@ -112,7 +118,7 @@ static int log_line_range_callback(const struct option *option, const char *arg,
 
 static void init_log_defaults(void)
 {
-       init_grep_defaults();
+       init_grep_defaults(the_repository);
        init_diff_ui_defaults();
 
        decoration_style = auto_decoration_style();
@@ -148,6 +154,7 @@ static void cmd_log_init_finish(int argc, const char **argv, const char *prefix,
        static struct string_list decorate_refs_include = STRING_LIST_INIT_NODUP;
        struct decoration_filter decoration_filter = {&decorate_refs_include,
                                                      &decorate_refs_exclude};
+       static struct revision_sources revision_sources;
 
        const struct option builtin_log_options[] = {
                OPT__QUIET(&quiet, N_("suppress diff output")),
@@ -194,8 +201,10 @@ static void cmd_log_init_finish(int argc, const char **argv, const char *prefix,
            rev->diffopt.filter || rev->diffopt.flags.follow_renames)
                rev->always_show_header = 0;
 
-       if (source)
-               rev->show_source = 1;
+       if (source) {
+               init_revision_sources(&revision_sources);
+               rev->sources = &revision_sources;
+       }
 
        if (mailmap) {
                rev->mailmap = xcalloc(1, sizeof(struct string_list));
@@ -461,7 +470,7 @@ int cmd_whatchanged(int argc, const char **argv, const char *prefix)
        init_log_defaults();
        git_config(git_log_config, NULL);
 
-       init_revisions(&rev, prefix);
+       repo_init_revisions(the_repository, &rev, prefix);
        rev.diff = 1;
        rev.simplify_history = 0;
        memset(&opt, 0, sizeof(opt));
@@ -501,7 +510,8 @@ static int show_blob_object(const struct object_id *oid, struct rev_info *rev, c
                                 &oidc, &obj_context))
                die(_("Not a valid object name %s"), obj_name);
        if (!obj_context.path ||
-           !textconv_object(obj_context.path, obj_context.mode, &oidc, 1, &buf, &size)) {
+           !textconv_object(the_repository, obj_context.path,
+                            obj_context.mode, &oidc, 1, &buf, &size)) {
                free(obj_context.path);
                return stream_blob_to_fd(1, oid, NULL, 0);
        }
@@ -518,7 +528,7 @@ static int show_tag_object(const struct object_id *oid, struct rev_info *rev)
 {
        unsigned long size;
        enum object_type type;
-       char *buf = read_sha1_file(oid->hash, &type, &size);
+       char *buf = read_object_file(oid, &type, &size);
        int offset = 0;
 
        if (!buf)
@@ -541,7 +551,7 @@ static int show_tag_object(const struct object_id *oid, struct rev_info *rev)
        return 0;
 }
 
-static int show_tree_object(const unsigned char *sha1,
+static int show_tree_object(const struct object_id *oid,
                struct strbuf *base,
                const char *pathname, unsigned mode, int stage, void *context)
 {
@@ -578,7 +588,7 @@ int cmd_show(int argc, const char **argv, const char *prefix)
        git_config(git_log_config, NULL);
 
        memset(&match_all, 0, sizeof(match_all));
-       init_revisions(&rev, prefix);
+       repo_init_revisions(the_repository, &rev, prefix);
        rev.diff = 1;
        rev.always_show_header = 1;
        rev.no_walk = REVISION_WALK_NO_WALK_SORTED;
@@ -614,7 +624,7 @@ int cmd_show(int argc, const char **argv, const char *prefix)
                        rev.shown_one = 1;
                        if (ret)
                                break;
-                       o = parse_object(&t->tagged->oid);
+                       o = parse_object(the_repository, &t->tagged->oid);
                        if (!o)
                                ret = error(_("Could not read object %s"),
                                            oid_to_hex(&t->tagged->oid));
@@ -658,7 +668,7 @@ int cmd_log_reflog(int argc, const char **argv, const char *prefix)
        init_log_defaults();
        git_config(git_log_config, NULL);
 
-       init_revisions(&rev, prefix);
+       repo_init_revisions(the_repository, &rev, prefix);
        init_reflog_walk(&rev.reflog_info);
        rev.verbose_header = 1;
        memset(&opt, 0, sizeof(opt));
@@ -697,7 +707,7 @@ int cmd_log(int argc, const char **argv, const char *prefix)
        init_log_defaults();
        git_config(git_log_config, NULL);
 
-       init_revisions(&rev, prefix);
+       repo_init_revisions(the_repository, &rev, prefix);
        rev.always_show_header = 1;
        memset(&opt, 0, sizeof(opt));
        opt.def = "HEAD";
@@ -901,16 +911,16 @@ static void get_patch_ids(struct rev_info *rev, struct patch_ids *ids)
        o2 = rev->pending.objects[1].item;
        flags1 = o1->flags;
        flags2 = o2->flags;
-       c1 = lookup_commit_reference(&o1->oid);
-       c2 = lookup_commit_reference(&o2->oid);
+       c1 = lookup_commit_reference(the_repository, &o1->oid);
+       c2 = lookup_commit_reference(the_repository, &o2->oid);
 
        if ((flags1 & UNINTERESTING) == (flags2 & UNINTERESTING))
                die(_("Not a range."));
 
-       init_patch_ids(ids);
+       init_patch_ids(the_repository, ids);
 
        /* given a range a..b get all patch ids for b..a */
-       init_revisions(&check_rev, rev->prefix);
+       repo_init_revisions(the_repository, &check_rev, rev->prefix);
        check_rev.max_parents = 1;
        o1->flags ^= UNINTERESTING;
        o2->flags ^= UNINTERESTING;
@@ -986,12 +996,32 @@ static char *find_branch_name(struct rev_info *rev)
        tip_oid = &rev->cmdline.rev[positive].item->oid;
        if (dwim_ref(ref, strlen(ref), &branch_oid, &full_ref) &&
            skip_prefix(full_ref, "refs/heads/", &v) &&
-           !oidcmp(tip_oid, &branch_oid))
+           oideq(tip_oid, &branch_oid))
                branch = xstrdup(v);
        free(full_ref);
        return branch;
 }
 
+static void show_diffstat(struct rev_info *rev,
+                         struct commit *origin, struct commit *head)
+{
+       struct diff_options opts;
+
+       memcpy(&opts, &rev->diffopt, sizeof(opts));
+       opts.output_format = DIFF_FORMAT_SUMMARY | DIFF_FORMAT_DIFFSTAT;
+       opts.stat_width = MAIL_DEFAULT_WRAP;
+
+       diff_setup_done(&opts);
+
+       diff_tree_oid(get_commit_tree_oid(origin),
+                     get_commit_tree_oid(head),
+                     "", &opts);
+       diffcore_std(&opts);
+       diff_flush(&opts);
+
+       fprintf(rev->diffopt.file, "\n");
+}
+
 static void make_cover_letter(struct rev_info *rev, int use_stdout,
                              struct commit *origin,
                              int nr, struct commit **list,
@@ -1005,7 +1035,6 @@ static void make_cover_letter(struct rev_info *rev, int use_stdout,
        struct strbuf sb = STRBUF_INIT;
        int i;
        const char *encoding = "UTF-8";
-       struct diff_options opts;
        int need_8bit_cte = 0;
        struct pretty_print_context pp = {0};
        struct commit *head = list[0];
@@ -1019,7 +1048,7 @@ static void make_cover_letter(struct rev_info *rev, int use_stdout,
            open_next_file(NULL, rev->numbered_files ? NULL : "cover-letter", rev, quiet))
                return;
 
-       log_write_email_headers(rev, head, &pp.after_subject, &need_8bit_cte);
+       log_write_email_headers(rev, head, &pp.after_subject, &need_8bit_cte, 0);
 
        for (i = 0; !need_8bit_cte && i < nr; i++) {
                const char *buf = get_commit_buffer(list[i], NULL);
@@ -1055,25 +1084,20 @@ static void make_cover_letter(struct rev_info *rev, int use_stdout,
 
        shortlog_output(&log);
 
-       /*
-        * We can only do diffstat with a unique reference point
-        */
-       if (!origin)
-               return;
-
-       memcpy(&opts, &rev->diffopt, sizeof(opts));
-       opts.output_format = DIFF_FORMAT_SUMMARY | DIFF_FORMAT_DIFFSTAT;
-       opts.stat_width = MAIL_DEFAULT_WRAP;
-
-       diff_setup_done(&opts);
+       /* We can only do diffstat with a unique reference point */
+       if (origin)
+               show_diffstat(rev, origin, head);
 
-       diff_tree_oid(&origin->tree->object.oid,
-                     &head->tree->object.oid,
-                     "", &opts);
-       diffcore_std(&opts);
-       diff_flush(&opts);
+       if (rev->idiff_oid1) {
+               fprintf_ln(rev->diffopt.file, "%s", rev->idiff_title);
+               show_interdiff(rev, 0);
+       }
 
-       fprintf(rev->diffopt.file, "\n");
+       if (rev->rdiff1) {
+               fprintf_ln(rev->diffopt.file, "%s", rev->rdiff_title);
+               show_range_diff(rev->rdiff1, rev->rdiff2,
+                               rev->creation_factor, 1, &rev->diffopt);
+       }
 }
 
 static const char *clean_message_id(const char *msg_id)
@@ -1337,6 +1361,8 @@ static struct commit *get_base_commit(const char *base_commit,
        return base;
 }
 
+define_commit_slab(commit_base, int);
+
 static void prepare_bases(struct base_tree_info *bases,
                          struct commit *base,
                          struct commit **list,
@@ -1345,24 +1371,26 @@ static void prepare_bases(struct base_tree_info *bases,
        struct commit *commit;
        struct rev_info revs;
        struct diff_options diffopt;
+       struct commit_base commit_base;
        int i;
 
        if (!base)
                return;
 
-       diff_setup(&diffopt);
+       init_commit_base(&commit_base);
+       repo_diff_setup(the_repository, &diffopt);
        diffopt.flags.recursive = 1;
        diff_setup_done(&diffopt);
 
        oidcpy(&bases->base_commit, &base->object.oid);
 
-       init_revisions(&revs, NULL);
+       repo_init_revisions(the_repository, &revs, NULL);
        revs.max_parents = 1;
        revs.topo_order = 1;
        for (i = 0; i < total; i++) {
                list[i]->object.flags &= ~UNINTERESTING;
                add_pending_object(&revs, &list[i]->object, "rev_list");
-               list[i]->util = (void *)1;
+               *commit_base_at(&commit_base, list[i]) = 1;
        }
        base->object.flags |= UNINTERESTING;
        add_pending_object(&revs, &base->object, "base");
@@ -1376,7 +1404,7 @@ static void prepare_bases(struct base_tree_info *bases,
        while ((commit = get_revision(&revs)) != NULL) {
                struct object_id oid;
                struct object_id *patch_id;
-               if (commit->util)
+               if (*commit_base_at(&commit_base, commit))
                        continue;
                if (commit_patch_id(commit, &diffopt, &oid, 0))
                        die(_("cannot get patch id"));
@@ -1385,6 +1413,7 @@ static void prepare_bases(struct base_tree_info *bases,
                oidcpy(patch_id, &oid);
                bases->nr_patch_id++;
        }
+       clear_commit_base(&commit_base);
 }
 
 static void print_bases(struct base_tree_info *bases, FILE *file)
@@ -1408,6 +1437,36 @@ static void print_bases(struct base_tree_info *bases, FILE *file)
        oidclr(&bases->base_commit);
 }
 
+static const char *diff_title(struct strbuf *sb, int reroll_count,
+                      const char *generic, const char *rerolled)
+{
+       if (reroll_count <= 0)
+               strbuf_addstr(sb, generic);
+       else /* RFC may be v0, so allow -v1 to diff against v0 */
+               strbuf_addf(sb, rerolled, reroll_count - 1);
+       return sb->buf;
+}
+
+static void infer_range_diff_ranges(struct strbuf *r1,
+                                   struct strbuf *r2,
+                                   const char *prev,
+                                   struct commit *origin,
+                                   struct commit *head)
+{
+       const char *head_oid = oid_to_hex(&head->object.oid);
+
+       if (!strstr(prev, "..")) {
+               strbuf_addf(r1, "%s..%s", head_oid, prev);
+               strbuf_addf(r2, "%s..%s", prev, head_oid);
+       } else if (!origin) {
+               die(_("failed to infer range-diff ranges"));
+       } else {
+               strbuf_addstr(r1, prev);
+               strbuf_addf(r2, "%s..%s",
+                           oid_to_hex(&origin->object.oid), head_oid);
+       }
+}
+
 int cmd_format_patch(int argc, const char **argv, const char *prefix)
 {
        struct commit *commit;
@@ -1435,6 +1494,13 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
        struct base_tree_info bases;
        int show_progress = 0;
        struct progress *progress = NULL;
+       struct oid_array idiff_prev = OID_ARRAY_INIT;
+       struct strbuf idiff_title = STRBUF_INIT;
+       const char *rdiff_prev = NULL;
+       struct strbuf rdiff1 = STRBUF_INIT;
+       struct strbuf rdiff2 = STRBUF_INIT;
+       struct strbuf rdiff_title = STRBUF_INIT;
+       int creation_factor = -1;
 
        const struct option builtin_format_patch_options[] = {
                { OPTION_CALLBACK, 'n', "numbered", &numbered, NULL,
@@ -1474,9 +1540,9 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
                         N_("output all-zero hash in From header")),
                OPT_BOOL(0, "ignore-if-in-upstream", &ignore_if_in_upstream,
                         N_("don't include a patch matching a commit upstream")),
-               { OPTION_SET_INT, 'p', "no-stat", &use_patch_format, NULL,
-                 N_("show patch format instead of default (patch + stat)"),
-                 PARSE_OPT_NONEG | PARSE_OPT_NOARG, NULL, 1},
+               OPT_SET_INT_F('p', "no-stat", &use_patch_format,
+                             N_("show patch format instead of default (patch + stat)"),
+                             1, PARSE_OPT_NONEG),
                OPT_GROUP(N_("Messaging")),
                { OPTION_CALLBACK, 0, "add-header", NULL, N_("header"),
                            N_("add email header"), 0, header_callback },
@@ -1508,6 +1574,13 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
                OPT__QUIET(&quiet, N_("don't print the patch filenames")),
                OPT_BOOL(0, "progress", &show_progress,
                         N_("show progress while generating patches")),
+               OPT_CALLBACK(0, "interdiff", &idiff_prev, N_("rev"),
+                            N_("show changes against <rev> in cover letter or single patch"),
+                            parse_opt_object_name),
+               OPT_STRING(0, "range-diff", &rdiff_prev, N_("refspec"),
+                          N_("show changes against <refspec> in cover letter or single patch")),
+               OPT_INTEGER(0, "creation-factor", &creation_factor,
+                           N_("percentage by which creation is weighted")),
                OPT_END()
        };
 
@@ -1516,7 +1589,7 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
        extra_cc.strdup_strings = 1;
        init_log_defaults();
        git_config(git_format_config, NULL);
-       init_revisions(&rev, prefix);
+       repo_init_revisions(the_repository, &rev, prefix);
        rev.commit_format = CMIT_FMT_EMAIL;
        rev.expand_tabs_in_log_default = 0;
        rev.verbose_header = 1;
@@ -1597,14 +1670,14 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
                numbered = 0;
 
        if (numbered && keep_subject)
-               die (_("-n and -k are mutually exclusive."));
+               die(_("-n and -k are mutually exclusive"));
        if (keep_subject && subject_prefix)
-               die (_("--subject-prefix/--rfc and -k are mutually exclusive."));
+               die(_("--subject-prefix/--rfc and -k are mutually exclusive"));
        rev.preserve_subject = keep_subject;
 
        argc = setup_revisions(argc, argv, &rev, &s_r_opt);
        if (argc > 1)
-               die (_("unrecognized argument: %s"), argv[1]);
+               die(_("unrecognized argument: %s"), argv[1]);
 
        if (rev.diffopt.output_format & DIFF_FORMAT_NAME)
                die(_("--name-only does not make sense"));
@@ -1692,8 +1765,8 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
                /* Don't say anything if head and upstream are the same. */
                if (rev.pending.nr == 2) {
                        struct object_array_entry *o = rev.pending.objects;
-                       if (oidcmp(&o[0].item->oid, &o[1].item->oid) == 0)
-                               return 0;
+                       if (oideq(&o[0].item->oid, &o[1].item->oid))
+                               goto done;
                }
                get_patch_ids(&rev, &ids);
        }
@@ -1717,7 +1790,7 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
        }
        if (nr == 0)
                /* nothing to do */
-               return 0;
+               goto done;
        total = nr;
        if (cover_letter == -1) {
                if (config_cover_letter == COVER_AUTO)
@@ -1730,6 +1803,35 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
        if (numbered)
                rev.total = total + start_number - 1;
 
+       if (idiff_prev.nr) {
+               if (!cover_letter && total != 1)
+                       die(_("--interdiff requires --cover-letter or single patch"));
+               rev.idiff_oid1 = &idiff_prev.oid[idiff_prev.nr - 1];
+               rev.idiff_oid2 = get_commit_tree_oid(list[0]);
+               rev.idiff_title = diff_title(&idiff_title, reroll_count,
+                                            _("Interdiff:"),
+                                            _("Interdiff against v%d:"));
+       }
+
+       if (creation_factor < 0)
+               creation_factor = RANGE_DIFF_CREATION_FACTOR_DEFAULT;
+       else if (!rdiff_prev)
+               die(_("--creation-factor requires --range-diff"));
+
+       if (rdiff_prev) {
+               if (!cover_letter && total != 1)
+                       die(_("--range-diff requires --cover-letter or single patch"));
+
+               infer_range_diff_ranges(&rdiff1, &rdiff2, rdiff_prev,
+                                       origin, list[0]);
+               rev.rdiff1 = rdiff1.buf;
+               rev.rdiff2 = rdiff2.buf;
+               rev.creation_factor = creation_factor;
+               rev.rdiff_title = diff_title(&rdiff_title, reroll_count,
+                                            _("Range-diff:"),
+                                            _("Range-diff against v%d:"));
+       }
+
        if (!signature) {
                ; /* --no-signature inhibits all signatures */
        } else if (signature && signature != git_version_string) {
@@ -1746,6 +1848,7 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
        if (base_commit || base_auto) {
                struct commit *base = get_base_commit(base_commit, list, nr);
                reset_revision_walk();
+               clear_object_flags(UNINTERESTING);
                prepare_bases(&bases, base, list, nr);
        }
 
@@ -1766,6 +1869,9 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
                print_signature(rev.diffopt.file);
                total++;
                start_number--;
+               /* interdiff/range-diff in cover-letter; omit from patches */
+               rev.idiff_oid1 = NULL;
+               rev.rdiff1 = NULL;
        }
        rev.add_signoff = do_signoff;
 
@@ -1846,6 +1952,13 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
        string_list_clear(&extra_hdr, 0);
        if (ignore_if_in_upstream)
                free_patch_ids(&ids);
+
+done:
+       oid_array_clear(&idiff_prev);
+       strbuf_release(&idiff_title);
+       strbuf_release(&rdiff1);
+       strbuf_release(&rdiff2);
+       strbuf_release(&rdiff_title);
        return 0;
 }
 
@@ -1853,7 +1966,8 @@ static int add_pending_commit(const char *arg, struct rev_info *revs, int flags)
 {
        struct object_id oid;
        if (get_oid(arg, &oid) == 0) {
-               struct commit *commit = lookup_commit_reference(&oid);
+               struct commit *commit = lookup_commit_reference(the_repository,
+                                                               &oid);
                if (commit) {
                        commit->object.flags |= flags;
                        add_pending_object(revs, &commit->object, arg);
@@ -1873,12 +1987,12 @@ static void print_commit(char sign, struct commit *commit, int verbose,
 {
        if (!verbose) {
                fprintf(file, "%c %s\n", sign,
-                      find_unique_abbrev(commit->object.oid.hash, abbrev));
+                      find_unique_abbrev(&commit->object.oid, abbrev));
        } else {
                struct strbuf buf = STRBUF_INIT;
                pp_commit_easy(CMIT_FMT_ONELINE, commit, &buf);
                fprintf(file, "%c %s %s\n", sign,
-                      find_unique_abbrev(commit->object.oid.hash, abbrev),
+                      find_unique_abbrev(&commit->object.oid, abbrev),
                       buf.buf);
                strbuf_release(&buf);
        }
@@ -1925,7 +2039,7 @@ int cmd_cherry(int argc, const char **argv, const char *prefix)
                }
        }
 
-       init_revisions(&revs, prefix);
+       repo_init_revisions(the_repository, &revs, prefix);
        revs.max_parents = 1;
 
        if (add_pending_commit(head, &revs, 0))
@@ -1936,7 +2050,7 @@ int cmd_cherry(int argc, const char **argv, const char *prefix)
        /* Don't say anything if head and upstream are the same. */
        if (revs.pending.nr == 2) {
                struct object_array_entry *o = revs.pending.objects;
-               if (oidcmp(&o[0].item->oid, &o[1].item->oid) == 0)
+               if (oideq(&o[0].item->oid, &o[1].item->oid))
                        return 0;
        }