Log message printout cleanups (#3): fix --pretty=oneline
This option is very special, since pretty_print_commit() will _remove_ the newline at the end of it, so we want to have an extra separator between the things. I added a honking big comment this time, so that (a) I don't forget this _again_ (I broke "oneline" several times during this printout cleanup), and so that people can understand _why_ the code does what it does. Now, arguably the alternate fix is to always have the '\n' at the end in pretty-print-commit, but git-rev-list depends on the current behaviour (but we could have git-rev-list remove it, whatever). With the big comment, the code hopefully doesn't get broken again. And now things like git log --pretty=oneline --cc --patch-with-stat works (even if that is admittedly a totally insane combination: if you want the patch, having the "oneline" log format is just crazy, but hey, it _works_. Even insane people are people). Signed-off-by: Junio C Hamano <junkio@cox.net>
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								log-tree.c
									
									
									
									
									
								
							
							
						
						
									
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								log-tree.c
									
									
									
									
									
								
							@ -9,6 +9,7 @@ void show_log(struct rev_info *opt, struct log_info *log, const char *sep)
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	struct commit *commit = log->commit, *parent = log->parent;
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	int abbrev = opt->diffopt.abbrev;
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	int abbrev_commit = opt->abbrev_commit ? opt->abbrev : 40;
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	const char *extra;
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	int len;
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	opt->loginfo = NULL;
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@ -18,8 +19,17 @@ void show_log(struct rev_info *opt, struct log_info *log, const char *sep)
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	}
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	/*
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	 * Whitespace between commit messages, unless we are oneline
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	 * The "oneline" format has several special cases:
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	 *  - The pretty-printed commit lacks a newline at the end
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	 *    of the buffer, but we do want to make sure that we
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	 *    have a newline there. If the separator isn't already
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	 *    a newline, add an extra one.
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	 *  - unlike other log messages, the one-line format does
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	 *    not have an empty line between entries.
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	 */
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	extra = "";
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	if (*sep != '\n' && opt->commit_format == CMIT_FMT_ONELINE)
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		extra = "\n";
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	if (opt->shown_one && opt->commit_format != CMIT_FMT_ONELINE)
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		putchar('\n');
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	opt->shown_one = 1;
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@ -38,7 +48,7 @@ void show_log(struct rev_info *opt, struct log_info *log, const char *sep)
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	 * And then the pretty-printed message itself
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	 */
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	len = pretty_print_commit(opt->commit_format, commit, ~0u, this_header, sizeof(this_header), abbrev);
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	printf("%s%s", this_header, sep);
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	printf("%s%s%s", this_header, extra, sep);
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}
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int log_tree_diff_flush(struct rev_info *opt)
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