index: make the index file format extensible.

diff --git a/log-tree.c b/log-tree.c
index c0a44320223a4d868f397c1a2338f6a44a64fffb..9634c4677f84e7d88965b47b5af32f23668b2142 100644 (file)
--- a/log-tree.c
+++ b/log-tree.c
@@ -1,4 +1,3 @@
-
 #include "cache.h"
 #include "diff.h"
 #include "commit.h"
@@ -10,6 +9,7 @@ void show_log(struct rev_info *opt, struct log_info *log, const char *sep)
        struct commit *commit = log->commit, *parent = log->parent;
        int abbrev = opt->diffopt.abbrev;
        int abbrev_commit = opt->abbrev_commit ? opt->abbrev : 40;
+       const char *extra;
        int len;
 
        opt->loginfo = NULL;
@@ -19,8 +19,17 @@ void show_log(struct rev_info *opt, struct log_info *log, const char *sep)
        }
 
        /*
-        * Whitespace between commit messages, unless we are oneline
+        * The "oneline" format has several special cases:
+        *  - The pretty-printed commit lacks a newline at the end
+        *    of the buffer, but we do want to make sure that we
+        *    have a newline there. If the separator isn't already
+        *    a newline, add an extra one.
+        *  - unlike other log messages, the one-line format does
+        *    not have an empty line between entries.
         */
+       extra = "";
+       if (*sep != '\n' && opt->commit_format == CMIT_FMT_ONELINE)
+               extra = "\n";
        if (opt->shown_one && opt->commit_format != CMIT_FMT_ONELINE)
                putchar('\n');
        opt->shown_one = 1;
@@ -39,7 +48,7 @@ void show_log(struct rev_info *opt, struct log_info *log, const char *sep)
         * 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);
+       printf("%s%s%s", this_header, extra, sep);
 }
 
 int log_tree_diff_flush(struct rev_info *opt)
@@ -55,7 +64,7 @@ int log_tree_diff_flush(struct rev_info *opt)
        }
 
        if (opt->loginfo && !opt->no_commit_id)
-               show_log(opt, opt->loginfo, "\n");
+               show_log(opt, opt->loginfo, opt->diffopt.with_stat ? "---\n" : "\n");
        diff_flush(&opt->diffopt);
        return 1;
 }