From 9153983310a169a340bd1023dccafd80b70b05bc Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Mon, 17 Apr 2006 11:59:32 -0700 Subject: Log message printout cleanups 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 Signed-off-by: Junio C Hamano --- combine-diff.c | 47 +++++++++++++++++++++-------------------------- 1 file changed, 21 insertions(+), 26 deletions(-) (limited to 'combine-diff.c') diff --git a/combine-diff.c b/combine-diff.c index 9bd27f82ec..b4fa9c9f68 100644 --- a/combine-diff.c +++ b/combine-diff.c @@ -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; } -- cgit v1.2.1 From eab144ac49c18d981261c2d0ba964d6380d9f1da Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Mon, 17 Apr 2006 16:59:42 -0700 Subject: Log message printout cleanups (#2) Here's a further patch on top of the previous one with cosmetic improvements (no "real" code changes, just trivial updates): - it gets the "---" before a diffstat right, including for the combined merge case. Righ now the logic is that we always use "---" when we have a diffstat, and an empty line otherwise. That's how I visually prefer it, but hey, it can be tweaked later. - I made "diff --cc/combined" add the "---/+++" header lines too. The thing won't be mistaken for a valid diff, since the "@@" lines have too many "@" characters (three or more), but it just makes it visually match a real diff, which at least to me makes a big difference in readability. Without them, it just looks very "wrong". I guess I should have taken the filename from each individual entry (and had one "---" file per parent), but I didn't even bother to try to see how that works, so this was the simple thing. With this, doing a git log --cc --patch-with-stat looks quite readable, I think. The only nagging issue - as far as I'm concerned - is that diffstats for merges are pretty questionable the way they are done now. I suspect it would be better to just have the _first_ diffstat, and always make the merge diffstat be the one for "result against first parent". Signed-off-by: Junio C Hamano --- combine-diff.c | 22 ++++++++++++++++------ 1 file changed, 16 insertions(+), 6 deletions(-) (limited to 'combine-diff.c') diff --git a/combine-diff.c b/combine-diff.c index b4fa9c9f68..aef9006443 100644 --- a/combine-diff.c +++ b/combine-diff.c @@ -585,6 +585,16 @@ static void reuse_combine_diff(struct sline *sline, unsigned long cnt, sline->p_lno[i] = sline->p_lno[j]; } +static void dump_quoted_path(const char *prefix, const char *path) +{ + fputs(prefix, stdout); + if (quote_c_style(path, NULL, NULL, 0)) + quote_c_style(path, NULL, stdout, 0); + else + printf("%s", path); + putchar('\n'); +} + static int show_patch_diff(struct combine_diff_path *elem, int num_parent, int dense, struct rev_info *rev) { @@ -692,12 +702,7 @@ static int show_patch_diff(struct combine_diff_path *elem, int num_parent, 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); - else - printf("%s", elem->path); - putchar('\n'); + dump_quoted_path(dense ? "diff --cc " : "diff --combined ", elem->path); printf("index "); for (i = 0; i < num_parent; i++) { abb = find_unique_abbrev(elem->parent[i].sha1, @@ -728,6 +733,8 @@ static int show_patch_diff(struct combine_diff_path *elem, int num_parent, } putchar('\n'); } + dump_quoted_path("--- a/", elem->path); + dump_quoted_path("+++ b/", elem->path); dump_sline(sline, cnt, num_parent); } free(result); @@ -861,6 +868,9 @@ void diff_tree_combined_merge(const unsigned char *sha1, &diffopts); diffcore_std(&diffopts); paths = intersect_paths(paths, i, num_parent); + + if (diffopts.with_stat && rev->loginfo) + show_log(rev, rev->loginfo, "---\n"); diff_flush(&diffopts); } -- cgit v1.2.1 From 965f803c323bb72a9dedbbc8f7ba00bbadb6cf58 Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Mon, 17 Apr 2006 22:53:03 -0700 Subject: combine-diff: show diffstat with the first parent. Asking for stat (either with --stat or --patch-with-stat) gives you diffstat for the first parent, even under combine-diff. While the combined patch is useful to highlight the complexity and interaction of the parts touched by all branches when reviewing a merge commit, diffstat is a tool to assess the extent of damage the merge brings in, and showing stat with the first parent is more sensible than clever per-parent diffstat. Signed-off-by: Junio C Hamano --- combine-diff.c | 24 +++++++++++++++++++----- 1 file changed, 19 insertions(+), 5 deletions(-) (limited to 'combine-diff.c') diff --git a/combine-diff.c b/combine-diff.c index aef9006443..27f6f57f3a 100644 --- a/combine-diff.c +++ b/combine-diff.c @@ -831,10 +831,11 @@ void show_combined_diff(struct combine_diff_path *p, case DIFF_FORMAT_NAME: show_raw_diff(p, num_parent, rev); return; - - default: case DIFF_FORMAT_PATCH: show_patch_diff(p, num_parent, dense, rev); + return; + default: + return; } } @@ -847,10 +848,13 @@ void diff_tree_combined_merge(const unsigned char *sha1, struct commit_list *parents; struct combine_diff_path *p, *paths = NULL; int num_parent, i, num_paths; + int do_diffstat; + do_diffstat = (opt->output_format == DIFF_FORMAT_DIFFSTAT || + opt->with_stat); diffopts = *opt; - diffopts.output_format = DIFF_FORMAT_NO_OUTPUT; diffopts.with_raw = 0; + diffopts.with_stat = 0; diffopts.recursive = 1; /* count parents */ @@ -864,14 +868,24 @@ void diff_tree_combined_merge(const unsigned char *sha1, parents; parents = parents->next, i++) { struct commit *parent = parents->item; + /* show stat against the first parent even + * when doing combined diff. + */ + if (i == 0 && do_diffstat) + diffopts.output_format = DIFF_FORMAT_DIFFSTAT; + else + diffopts.output_format = DIFF_FORMAT_NO_OUTPUT; diff_tree_sha1(parent->object.sha1, commit->object.sha1, "", &diffopts); diffcore_std(&diffopts); paths = intersect_paths(paths, i, num_parent); - if (diffopts.with_stat && rev->loginfo) - show_log(rev, rev->loginfo, "---\n"); + if (do_diffstat && rev->loginfo) + show_log(rev, rev->loginfo, + opt->with_stat ? "---\n" : "\n"); diff_flush(&diffopts); + if (opt->with_stat) + putchar('\n'); } /* find out surviving paths */ -- cgit v1.2.1