Log message printout cleanups
authorLinus Torvalds <torvalds@osdl.org>
Mon, 17 Apr 2006 18:59:32 +0000 (11:59 -0700)
committerJunio C Hamano <junkio@cox.net>
Mon, 17 Apr 2006 22:18:25 +0000 (15:18 -0700)
On Sun, 16 Apr 2006, Junio C Hamano wrote:
>
> In the mid-term, I am hoping we can drop the generate_header()
> callchain _and_ the custom code that formats commit log in-core,
> found in cmd_log_wc().

Ok, this was nastier than expected, just because the dependencies between
the different log-printing stuff were absolutely _everywhere_, but here's
a patch that does exactly that.

The patch is not very easy to read, and the "--patch-with-stat" thing is
still broken (it does not call the "show_log()" thing properly for
merges). That's not a new bug. In the new world order it _should_ do
something like

if (rev->logopt)
show_log(rev, rev->logopt, "---\n");

but it doesn't. I haven't looked at the --with-stat logic, so I left it
alone.

That said, this patch removes more lines than it adds, and in particular,
the "cmd_log_wc()" loop is now a very clean:

while ((commit = get_revision(rev)) != NULL) {
log_tree_commit(rev, commit);
free(commit->buffer);
commit->buffer = NULL;
}

so it doesn't get much prettier than this. All the complexity is entirely
hidden in log-tree.c, and any code that needs to flush the log literally
just needs to do the "if (rev->logopt) show_log(...)" incantation.

I had to make the combined_diff() logic take a "struct rev_info" instead
of just a "struct diff_options", but that part is pretty clean.

This does change "git whatchanged" from using "diff-tree" as the commit
descriptor to "commit", and I changed one of the tests to reflect that new
reality. Otherwise everything still passes, and my other tests look fine
too.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
combine-diff.c
diff-files.c
diff-tree.c
diff.h
git.c
log-tree.c
log-tree.h
rev-list.c
revision.c
revision.h
t/t1200-tutorial.sh

index 9bd27f8..b4fa9c9 100644 (file)
@@ -5,6 +5,7 @@
 #include "diffcore.h"
 #include "quote.h"
 #include "xdiff-interface.h"
+#include "log-tree.h"
 
 static int uninteresting(struct diff_filepair *p)
 {
@@ -585,9 +586,9 @@ static void reuse_combine_diff(struct sline *sline, unsigned long cnt,
 }
 
 static int show_patch_diff(struct combine_diff_path *elem, int num_parent,
-                          int dense, const char *header,
-                          struct diff_options *opt)
+                          int dense, struct rev_info *rev)
 {
+       struct diff_options *opt = &rev->diffopt;
        unsigned long result_size, cnt, lno;
        char *result, *cp, *ep;
        struct sline *sline; /* survived lines */
@@ -689,10 +690,8 @@ static int show_patch_diff(struct combine_diff_path *elem, int num_parent,
        if (show_hunks || mode_differs || working_tree_file) {
                const char *abb;
 
-               if (header) {
-                       shown_header++;
-                       printf("%s%c", header, opt->line_termination);
-               }
+               if (rev->loginfo)
+                       show_log(rev, rev->loginfo, "\n");
                printf("diff --%s ", dense ? "cc" : "combined");
                if (quote_c_style(elem->path, NULL, NULL, 0))
                        quote_c_style(elem->path, NULL, stdout, 0);
@@ -750,8 +749,9 @@ static int show_patch_diff(struct combine_diff_path *elem, int num_parent,
 
 #define COLONS "::::::::::::::::::::::::::::::::"
 
-static void show_raw_diff(struct combine_diff_path *p, int num_parent, const char *header, struct diff_options *opt)
+static void show_raw_diff(struct combine_diff_path *p, int num_parent, struct rev_info *rev)
 {
+       struct diff_options *opt = &rev->diffopt;
        int i, offset, mod_type = 'A';
        const char *prefix;
        int line_termination, inter_name_termination;
@@ -761,8 +761,8 @@ static void show_raw_diff(struct combine_diff_path *p, int num_parent, const cha
        if (!line_termination)
                inter_name_termination = 0;
 
-       if (header)
-               printf("%s%c", header, line_termination);
+       if (rev->loginfo)
+               show_log(rev, rev->loginfo, "\n");
 
        for (i = 0; i < num_parent; i++) {
                if (p->parent[i].mode)
@@ -810,31 +810,31 @@ static void show_raw_diff(struct combine_diff_path *p, int num_parent, const cha
        }
 }
 
-int show_combined_diff(struct combine_diff_path *p,
+void show_combined_diff(struct combine_diff_path *p,
                       int num_parent,
                       int dense,
-                      const char *header,
-                      struct diff_options *opt)
+                      struct rev_info *rev)
 {
+       struct diff_options *opt = &rev->diffopt;
        if (!p->len)
-               return 0;
+               return;
        switch (opt->output_format) {
        case DIFF_FORMAT_RAW:
        case DIFF_FORMAT_NAME_STATUS:
        case DIFF_FORMAT_NAME:
-               show_raw_diff(p, num_parent, header, opt);
-               return 1;
+               show_raw_diff(p, num_parent, rev);
+               return;
 
        default:
        case DIFF_FORMAT_PATCH:
-               return show_patch_diff(p, num_parent, dense, header, opt);
+               show_patch_diff(p, num_parent, dense, rev);
        }
 }
 
-const char *diff_tree_combined_merge(const unsigned char *sha1,
-                            const char *header, int dense,
-                            struct diff_options *opt)
+void diff_tree_combined_merge(const unsigned char *sha1,
+                            int dense, struct rev_info *rev)
 {
+       struct diff_options *opt = &rev->diffopt;
        struct commit *commit = lookup_commit(sha1);
        struct diff_options diffopts;
        struct commit_list *parents;
@@ -874,17 +874,13 @@ const char *diff_tree_combined_merge(const unsigned char *sha1,
                        int saved_format = opt->output_format;
                        opt->output_format = DIFF_FORMAT_RAW;
                        for (p = paths; p; p = p->next) {
-                               if (show_combined_diff(p, num_parent, dense,
-                                                      header, opt))
-                                       header = NULL;
+                               show_combined_diff(p, num_parent, dense, rev);
                        }
                        opt->output_format = saved_format;
                        putchar(opt->line_termination);
                }
                for (p = paths; p; p = p->next) {
-                       if (show_combined_diff(p, num_parent, dense,
-                                              header, opt))
-                               header = NULL;
+                       show_combined_diff(p, num_parent, dense, rev);
                }
        }
 
@@ -894,5 +890,4 @@ const char *diff_tree_combined_merge(const unsigned char *sha1,
                paths = paths->next;
                free(tmp);
        }
-       return header;
 }
index 3e7f5f1..ffbef48 100644 (file)
@@ -5,12 +5,14 @@
  */
 #include "cache.h"
 #include "diff.h"
+#include "commit.h"
+#include "revision.h"
 
 static const char diff_files_usage[] =
 "git-diff-files [-q] [-0/-1/2/3 |-c|--cc] [<common diff options>] [<path>...]"
 COMMON_DIFF_OPTIONS_HELP;
 
-static struct diff_options diff_options;
+static struct rev_info rev;
 static int silent = 0;
 static int diff_unmerged_stage = 2;
 static int combine_merges = 0;
@@ -18,12 +20,12 @@ static int dense_combined_merges = 0;
 
 static void show_unmerge(const char *path)
 {
-       diff_unmerge(&diff_options, path);
+       diff_unmerge(&rev.diffopt, path);
 }
 
 static void show_file(int pfx, struct cache_entry *ce)
 {
-       diff_addremove(&diff_options, pfx, ntohl(ce->ce_mode),
+       diff_addremove(&rev.diffopt, pfx, ntohl(ce->ce_mode),
                       ce->sha1, ce->name, NULL);
 }
 
@@ -31,7 +33,7 @@ static void show_modified(int oldmode, int mode,
                          const unsigned char *old_sha1, const unsigned char *sha1,
                          char *path)
 {
-       diff_change(&diff_options, oldmode, mode, old_sha1, sha1, path, NULL);
+       diff_change(&rev.diffopt, oldmode, mode, old_sha1, sha1, path, NULL);
 }
 
 int main(int argc, const char **argv)
@@ -41,7 +43,7 @@ int main(int argc, const char **argv)
        int entries, i;
 
        git_config(git_diff_config);
-       diff_setup(&diff_options);
+       diff_setup(&rev.diffopt);
        while (1 < argc && argv[1][0] == '-') {
                if (!strcmp(argv[1], "--")) {
                        argv++;
@@ -74,7 +76,7 @@ int main(int argc, const char **argv)
                        dense_combined_merges = combine_merges = 1;
                else {
                        int diff_opt_cnt;
-                       diff_opt_cnt = diff_opt_parse(&diff_options,
+                       diff_opt_cnt = diff_opt_parse(&rev.diffopt,
                                                      argv+1, argc-1);
                        if (diff_opt_cnt < 0)
                                usage(diff_files_usage);
@@ -89,13 +91,13 @@ int main(int argc, const char **argv)
                argv++; argc--;
        }
        if (dense_combined_merges)
-               diff_options.output_format = DIFF_FORMAT_PATCH;
+               rev.diffopt.output_format = DIFF_FORMAT_PATCH;
 
        /* Find the directory, and set up the pathspec */
        pathspec = get_pathspec(prefix, argv + 1);
        entries = read_cache();
 
-       if (diff_setup_done(&diff_options) < 0)
+       if (diff_setup_done(&rev.diffopt) < 0)
                usage(diff_files_usage);
 
        /* At this point, if argc == 1, then we are doing everything.
@@ -167,8 +169,7 @@ int main(int argc, const char **argv)
                        if (combine_merges && num_compare_stages == 2) {
                                show_combined_diff(&combine.p, 2,
                                                   dense_combined_merges,
-                                                  NULL,
-                                                  &diff_options);
+                                                  &rev);
                                free(combine.p.path);
                                continue;
                        }
@@ -194,7 +195,7 @@ int main(int argc, const char **argv)
                        continue;
                }
                changed = ce_match_stat(ce, &st, 0);
-               if (!changed && !diff_options.find_copies_harder)
+               if (!changed && !rev.diffopt.find_copies_harder)
                        continue;
                oldmode = ntohl(ce->ce_mode);
 
@@ -207,7 +208,7 @@ int main(int argc, const char **argv)
                              ce->sha1, (changed ? null_sha1 : ce->sha1),
                              ce->name);
        }
-       diffcore_std(&diff_options);
-       diff_flush(&diff_options);
+       diffcore_std(&rev.diffopt);
+       diff_flush(&rev.diffopt);
        return 0;
 }
index e578798..7207867 100644 (file)
@@ -71,6 +71,7 @@ int main(int argc, const char **argv)
        nr_sha1 = 0;
        init_revisions(opt);
        opt->abbrev = 0;
+       opt->diff = 1;
        argc = setup_revisions(argc, argv, opt, NULL);
 
        while (--argc > 0) {
diff --git a/diff.h b/diff.h
index f783bae..52fff66 100644 (file)
--- a/diff.h
+++ b/diff.h
@@ -6,6 +6,7 @@
 
 #include "tree-walk.h"
 
+struct rev_info;
 struct diff_options;
 
 typedef void (*change_fn_t)(struct diff_options *options,
@@ -70,11 +71,10 @@ struct combine_diff_path {
        (sizeof(struct combine_diff_path) + \
         sizeof(struct combine_diff_parent) * (n) + (l) + 1)
 
-extern int show_combined_diff(struct combine_diff_path *elem, int num_parent,
-                             int dense, const char *header,
-                             struct diff_options *);
+extern void show_combined_diff(struct combine_diff_path *elem, int num_parent,
+                             int dense, struct rev_info *);
 
-extern const char *diff_tree_combined_merge(const unsigned char *sha1, const char *, int, struct diff_options *opt);
+extern void diff_tree_combined_merge(const unsigned char *sha1, int, struct rev_info *);
 
 extern void diff_addremove(struct diff_options *,
                           int addremove,
diff --git a/git.c b/git.c
index fc4e429..016fa30 100644 (file)
--- a/git.c
+++ b/git.c
@@ -282,75 +282,22 @@ static int cmd_log_wc(int argc, const char **argv, char **envp,
                      struct rev_info *rev)
 {
        struct commit *commit;
-       char *buf = xmalloc(LOGSIZE);
-       const char *commit_prefix = "commit ";
-       int shown = 0;
 
        rev->abbrev = DEFAULT_ABBREV;
        rev->commit_format = CMIT_FMT_DEFAULT;
+       rev->verbose_header = 1;
        argc = setup_revisions(argc, argv, rev, "HEAD");
 
        if (argc > 1)
                die("unrecognized argument: %s", argv[1]);
-       if (rev->commit_format == CMIT_FMT_ONELINE)
-               commit_prefix = "";
 
        prepare_revision_walk(rev);
        setup_pager();
        while ((commit = get_revision(rev)) != NULL) {
-               unsigned long ofs = 0;
-
-               if (shown && rev->diff &&
-                   rev->commit_format != CMIT_FMT_ONELINE)
-                       putchar('\n');
-
-               ofs = sprintf(buf, "%s", commit_prefix);
-               if (rev->abbrev_commit && rev->abbrev)
-                       ofs += sprintf(buf + ofs, "%s",
-                                      find_unique_abbrev(commit->object.sha1,
-                                                         rev->abbrev));
-               else
-                       ofs += sprintf(buf + ofs, "%s",
-                                      sha1_to_hex(commit->object.sha1));
-               if (rev->parents) {
-                       struct commit_list *parents = commit->parents;
-                       while (parents) {
-                               struct object *o = &(parents->item->object);
-                               parents = parents->next;
-                               if (o->flags & TMP_MARK)
-                                       continue;
-                               ofs += sprintf(buf + ofs, " %s",
-                                              sha1_to_hex(o->sha1));
-                               o->flags |= TMP_MARK;
-                       }
-                       /* TMP_MARK is a general purpose flag that can
-                        * be used locally, but the user should clean
-                        * things up after it is done with them.
-                        */
-                       for (parents = commit->parents;
-                            parents;
-                            parents = parents->next)
-                               parents->item->object.flags &= ~TMP_MARK;
-               }
-               buf[ofs++] = 
-                       (rev->commit_format == CMIT_FMT_ONELINE) ? ' ' : '\n';
-               ofs += pretty_print_commit(rev->commit_format, commit, ~0,
-                                          buf + ofs,
-                                          LOGSIZE - ofs - 20,
-                                          rev->abbrev);
-
-               if (rev->diff) {
-                       rev->use_precomputed_header = buf;
-                       strcpy(buf + ofs, "\n---\n");
-                       log_tree_commit(rev, commit);
-               }
-               else
-                       printf("%s\n", buf);
-               shown = 1;
+               log_tree_commit(rev, commit);
                free(commit->buffer);
                commit->buffer = NULL;
        }
-       free(buf);
        return 0;
 }
 
index af36f70..c0a4432 100644 (file)
@@ -1,11 +1,51 @@
+
 #include "cache.h"
 #include "diff.h"
 #include "commit.h"
 #include "log-tree.h"
 
+void show_log(struct rev_info *opt, struct log_info *log, const char *sep)
+{
+       static char this_header[16384];
+       struct commit *commit = log->commit, *parent = log->parent;
+       int abbrev = opt->diffopt.abbrev;
+       int abbrev_commit = opt->abbrev_commit ? opt->abbrev : 40;
+       int len;
+
+       opt->loginfo = NULL;
+       if (!opt->verbose_header) {
+               puts(sha1_to_hex(commit->object.sha1));
+               return;
+       }
+
+       /*
+        * Whitespace between commit messages, unless we are oneline
+        */
+       if (opt->shown_one && opt->commit_format != CMIT_FMT_ONELINE)
+               putchar('\n');
+       opt->shown_one = 1;
+
+       /*
+        * Print header line of header..
+        */
+       printf("%s%s",
+               opt->commit_format == CMIT_FMT_ONELINE ? "" : "commit ",
+               diff_unique_abbrev(commit->object.sha1, abbrev_commit));
+       if (parent) 
+               printf(" (from %s)", diff_unique_abbrev(parent->object.sha1, abbrev_commit));
+       putchar(opt->commit_format == CMIT_FMT_ONELINE ? ' ' : '\n');
+
+       /*
+        * And then the pretty-printed message itself
+        */
+       len = pretty_print_commit(opt->commit_format, commit, ~0u, this_header, sizeof(this_header), abbrev);
+       printf("%s%s", this_header, sep);
+}
+
 int log_tree_diff_flush(struct rev_info *opt)
 {
        diffcore_std(&opt->diffopt);
+
        if (diff_queue_is_empty()) {
                int saved_fmt = opt->diffopt.output_format;
                opt->diffopt.output_format = DIFF_FORMAT_NO_OUTPUT;
@@ -13,12 +53,9 @@ int log_tree_diff_flush(struct rev_info *opt)
                opt->diffopt.output_format = saved_fmt;
                return 0;
        }
-       if (opt->header) {
-               if (!opt->no_commit_id)
-                       printf("%s%c", opt->header,
-                              opt->diffopt.line_termination);
-               opt->header = NULL;
-       }
+
+       if (opt->loginfo && !opt->no_commit_id)
+               show_log(opt, opt->loginfo, "\n");
        diff_flush(&opt->diffopt);
        return 1;
 }
@@ -43,96 +80,78 @@ static int diff_root_tree(struct rev_info *opt,
        return retval;
 }
 
-static const char *get_header(struct rev_info *opt,
-                                  const unsigned char *commit_sha1,
-                                  const unsigned char *parent_sha1,
-                                  const struct commit *commit)
-{
-       static char this_header[16384];
-       int offset;
-       unsigned long len;
-       int abbrev = opt->diffopt.abbrev;
-       const char *msg = commit->buffer;
-
-       if (opt->use_precomputed_header)
-               return opt->use_precomputed_header;
-
-       if (!opt->verbose_header)
-               return sha1_to_hex(commit_sha1);
-
-       len = strlen(msg);
-
-       offset = sprintf(this_header, "%s%s ",
-                        opt->header_prefix,
-                        diff_unique_abbrev(commit_sha1, abbrev));
-       if (commit_sha1 != parent_sha1)
-               offset += sprintf(this_header + offset, "(from %s)\n",
-                                 parent_sha1
-                                 ? diff_unique_abbrev(parent_sha1, abbrev)
-                                 : "root");
-       else
-               offset += sprintf(this_header + offset, "(from parents)\n");
-       offset += pretty_print_commit(opt->commit_format, commit, len,
-                                     this_header + offset,
-                                     sizeof(this_header) - offset, abbrev);
-       return this_header;
-}
-
-static const char *generate_header(struct rev_info *opt,
-                                       const unsigned char *commit_sha1,
-                                       const unsigned char *parent_sha1,
-                                       const struct commit *commit)
-{
-       const char *header = get_header(opt, commit_sha1, parent_sha1, commit);
-
-       if (opt->always_show_header) {
-               puts(header);
-               header = NULL;
-       }
-       return header;
-}
-
 static int do_diff_combined(struct rev_info *opt, struct commit *commit)
 {
        unsigned const char *sha1 = commit->object.sha1;
 
-       opt->header = generate_header(opt, sha1, sha1, commit);
-       opt->header = diff_tree_combined_merge(sha1, opt->header,
-                                               opt->dense_combined_merges,
-                                               &opt->diffopt);
-       if (!opt->header && opt->verbose_header)
-               opt->header_prefix = "\ndiff-tree ";
-       return 0;
+       diff_tree_combined_merge(sha1, opt->dense_combined_merges, opt);
+       return !opt->loginfo;
 }
 
-int log_tree_commit(struct rev_info *opt, struct commit *commit)
+/*
+ * Show the diff of a commit.
+ *
+ * Return true if we printed any log info messages
+ */
+static int log_tree_diff(struct rev_info *opt, struct commit *commit, struct log_info *log)
 {
+       int showed_log;
        struct commit_list *parents;
        unsigned const char *sha1 = commit->object.sha1;
 
+       if (!opt->diff)
+               return 0;
+
        /* Root commit? */
-       if (opt->show_root_diff && !commit->parents) {
-               opt->header = generate_header(opt, sha1, NULL, commit);
-               diff_root_tree(opt, sha1, "");
+       parents = commit->parents;
+       if (!parents) {
+               if (opt->show_root_diff)
+                       diff_root_tree(opt, sha1, "");
+               return !opt->loginfo;
        }
 
        /* More than one parent? */
-       if (commit->parents && commit->parents->next) {
+       if (parents && parents->next) {
                if (opt->ignore_merges)
                        return 0;
                else if (opt->combine_merges)
                        return do_diff_combined(opt, commit);
+
+               /* If we show individual diffs, show the parent info */
+               log->parent = parents->item;
        }
 
-       for (parents = commit->parents; parents; parents = parents->next) {
+       showed_log = 0;
+       for (;;) {
                struct commit *parent = parents->item;
-               unsigned const char *psha1 = parent->object.sha1;
-               opt->header = generate_header(opt, sha1, psha1, commit);
-               diff_tree_sha1(psha1, sha1, "", &opt->diffopt);
-               log_tree_diff_flush(opt);               
 
-               if (!opt->header && opt->verbose_header)
-                       opt->header_prefix = "\ndiff-tree ";
+               diff_tree_sha1(parent->object.sha1, sha1, "", &opt->diffopt);
+               log_tree_diff_flush(opt);
+
+               showed_log |= !opt->loginfo;
+
+               /* Set up the log info for the next parent, if any.. */
+               parents = parents->next;
+               if (!parents)
+                       break;
+               log->parent = parents->item;
+               opt->loginfo = log;
+       }
+       return showed_log;
+}
+
+int log_tree_commit(struct rev_info *opt, struct commit *commit)
+{
+       struct log_info log;
+
+       log.commit = commit;
+       log.parent = NULL;
+       opt->loginfo = &log;
+
+       if (!log_tree_diff(opt, commit, &log) && opt->loginfo && opt->always_show_header) {
+               log.parent = NULL;
+               show_log(opt, opt->loginfo, "");
        }
+       opt->loginfo = NULL;
        return 0;
 }
index 91a909b..a26e484 100644 (file)
@@ -3,9 +3,14 @@
 
 #include "revision.h"
 
+struct log_info {
+       struct commit *commit, *parent;
+};
+
 void init_log_tree_opt(struct rev_info *);
 int log_tree_diff_flush(struct rev_info *);
 int log_tree_commit(struct rev_info *, struct commit *);
 int log_tree_opt_parse(struct rev_info *, const char **, int);
+void show_log(struct rev_info *opt, struct log_info *log, const char *sep);
 
 #endif
index d3c0dd9..a4d72af 100644 (file)
@@ -41,13 +41,14 @@ struct rev_info revs;
 static int bisect_list = 0;
 static int show_timestamp = 0;
 static int hdr_termination = 0;
+static const char *header_prefix;
 
 static void show_commit(struct commit *commit)
 {
        if (show_timestamp)
                printf("%lu ", commit->date);
-       if (*revs.header_prefix)
-               fputs(revs.header_prefix, stdout);
+       if (header_prefix)
+               fputs(header_prefix, stdout);
        if (commit->object.flags & BOUNDARY)
                putchar('-');
        if (revs.abbrev_commit && revs.abbrev)
@@ -322,9 +323,9 @@ int main(int argc, const char **argv)
                /* The command line has a --pretty  */
                hdr_termination = '\n';
                if (revs.commit_format == CMIT_FMT_ONELINE)
-                       revs.header_prefix = "";
+                       header_prefix = "";
                else
-                       revs.header_prefix = "commit ";
+                       header_prefix = "commit ";
        }
        else if (revs.verbose_header)
                /* Only --header was specified */
index f8fb028..5abec18 100644 (file)
@@ -498,7 +498,6 @@ void init_revisions(struct rev_info *revs)
        revs->topo_setter = topo_sort_default_setter;
        revs->topo_getter = topo_sort_default_getter;
 
-       revs->header_prefix = "";
        revs->commit_format = CMIT_FMT_DEFAULT;
 
        diff_setup(&revs->diffopt);
@@ -675,12 +674,10 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, const ch
                        }
                        if (!strcmp(arg, "-v")) {
                                revs->verbose_header = 1;
-                               revs->header_prefix = "diff-tree ";
                                continue;
                        }
                        if (!strncmp(arg, "--pretty", 8)) {
                                revs->verbose_header = 1;
-                               revs->header_prefix = "diff-tree ";
                                revs->commit_format = get_commit_format(arg+8);
                                continue;
                        }
index 74dc5ef..05f658a 100644 (file)
@@ -10,6 +10,7 @@
 #define ADDED          (1u<<6) /* Parents already parsed and added? */
 
 struct rev_info;
+struct log_info;
 
 typedef void (prune_fn_t)(struct rev_info *revs, struct commit *commit);
 
@@ -51,12 +52,11 @@ struct rev_info {
                        always_show_header:1;
 
        /* Format info */
-       unsigned int    abbrev_commit:1;
+       unsigned int    shown_one:1,
+                       abbrev_commit:1;
        unsigned int    abbrev;
        enum cmit_fmt   commit_format;
-       const char      *header_prefix;
-       const char      *header;
-       const char      *use_precomputed_header;
+       struct log_info *loginfo;
 
        /* special limits */
        int max_count;
index 1002413..16b3ea9 100755 (executable)
@@ -49,7 +49,7 @@ test_expect_success 'git diff HEAD' 'cmp diff.expect diff.output'
 #test_expect_success 'git-read-tree --reset HEAD' "git-read-tree --reset HEAD ; test \"hello: needs update\" = \"$(git-update-index --refresh)\""
 
 cat > whatchanged.expect << EOF
-diff-tree VARIABLE (from root)
+commit VARIABLE
 Author: VARIABLE
 Date:   VARIABLE
 
@@ -72,7 +72,7 @@ index 0000000..557db03
 EOF
 
 git-whatchanged -p --root | \
-       sed -e "1s/^\(.\{10\}\).\{40\}/\1VARIABLE/" \
+       sed -e "1s/^\(.\{7\}\).\{40\}/\1VARIABLE/" \
                -e "2,3s/^\(.\{8\}\).*$/\1VARIABLE/" \
 > whatchanged.output
 test_expect_success 'git-whatchanged -p --root' 'cmp whatchanged.expect whatchanged.output'