From 969fe57b844a514747c1d5d66e0698dc53ed473d Mon Sep 17 00:00:00 2001 From: =?utf8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= Date: Thu, 1 Mar 2012 13:26:45 +0100 Subject: [PATCH] diff --stat: enable limiting of the graph part MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit A new option --stat-graph-width= can be used to limit the width of the graph part even is more space is available. Up to columns will be used for the graph. If commits changing a lot of lines are displayed in a wide terminal window (200 or more columns), and the +- graph uses the full width, the output can be hard to comfortably scan with a horizontal movement of human eyes. Messages wrapped to about 80 columns would be interspersed with very long +- lines. It makes sense to limit the width of the graph part to a fixed value (e.g. 70 columns), even if more columns are available. Signed-off-by: Zbigniew Jędrzejewski-Szmek Signed-off-by: Junio C Hamano --- Documentation/diff-options.txt | 2 ++ diff.c | 23 +++++++++++++++++++++-- diff.h | 1 + t/t4052-stat-output.sh | 6 ++++++ 4 files changed, 30 insertions(+), 2 deletions(-) diff --git a/Documentation/diff-options.txt b/Documentation/diff-options.txt index 6b9408fdd..d34efd521 100644 --- a/Documentation/diff-options.txt +++ b/Documentation/diff-options.txt @@ -59,6 +59,8 @@ endif::git-format-patch[] or 80 columns if not connected to a terminal, and can be overriden by ``. The width of the filename part can be limited by giving another width `` after a comma. + The width of the graph part can be limited by using + `--stat-graph-width=`. By giving a third parameter ``, you can limit the output to the first `` lines, followed by `...` if there are more. diff --git a/diff.c b/diff.c index 1656310dd..8f2abc8fe 100644 --- a/diff.c +++ b/diff.c @@ -1375,13 +1375,15 @@ static void show_stats(struct diffstat_t *data, struct diff_options *options) /* * We have width = stat_width or term_columns() columns total. * We want a maximum of min(max_len, stat_name_width) for the name part. + * We want a maximum of min(max_change, stat_graph_width) for the +- part. * We also need 1 for " " and 4 + decimal_width(max_change) * for " | NNNN " and one the empty column at the end, altogether * 6 + decimal_width(max_change). * * If there's not enough space, we will use the smaller of * stat_name_width (if set) and 5/8*width for the filename, - * and the rest for constant elements + graph part. + * and the rest for constant elements + graph part, but no more + * than stat_graph_width for the graph part. * (5/8 gives 50 for filename and 30 for the constant parts + graph * for the standard terminal size). * @@ -1406,7 +1408,9 @@ static void show_stats(struct diffstat_t *data, struct diff_options *options) /* * First assign sizes that are wanted, ignoring available width. */ - graph_width = max_change; + graph_width = (options->stat_graph_width && + options->stat_graph_width < max_change) ? + options->stat_graph_width : max_change; name_width = (options->stat_name_width > 0 && options->stat_name_width < max_len) ? options->stat_name_width : max_len; @@ -1417,6 +1421,9 @@ static void show_stats(struct diffstat_t *data, struct diff_options *options) if (name_width + number_width + 6 + graph_width > width) { if (graph_width > width * 3/8 - number_width - 6) graph_width = width * 3/8 - number_width - 6; + if (options->stat_graph_width && + graph_width > options->stat_graph_width) + graph_width = options->stat_graph_width; if (name_width > width - number_width - 6 - graph_width) name_width = width - number_width - 6 - graph_width; else @@ -3289,6 +3296,7 @@ static int stat_opt(struct diff_options *options, const char **av) char *end; int width = options->stat_width; int name_width = options->stat_name_width; + int graph_width = options->stat_graph_width; int count = options->stat_count; int argcount = 1; @@ -3317,6 +3325,16 @@ static int stat_opt(struct diff_options *options, const char **av) name_width = strtoul(av[1], &end, 10); argcount = 2; } + } else if (!prefixcmp(arg, "-graph-width")) { + arg += strlen("-graph-width"); + if (*arg == '=') + graph_width = strtoul(arg + 1, &end, 10); + else if (!*arg && !av[1]) + die("Option '--stat-graph-width' requires a value"); + else if (!*arg) { + graph_width = strtoul(av[1], &end, 10); + argcount = 2; + } } else if (!prefixcmp(arg, "-count")) { arg += strlen("-count"); if (*arg == '=') @@ -3342,6 +3360,7 @@ static int stat_opt(struct diff_options *options, const char **av) return 0; options->output_format |= DIFF_FORMAT_DIFFSTAT; options->stat_name_width = name_width; + options->stat_graph_width = graph_width; options->stat_width = width; options->stat_count = count; return argcount; diff --git a/diff.h b/diff.h index ae71f4ccf..2021a1dfe 100644 --- a/diff.h +++ b/diff.h @@ -129,6 +129,7 @@ struct diff_options { int stat_width; int stat_name_width; + int stat_graph_width; int stat_count; const char *word_regex; enum diff_words_type word_diff; diff --git a/t/t4052-stat-output.sh b/t/t4052-stat-output.sh index 9a8f62dde..3d823af38 100755 --- a/t/t4052-stat-output.sh +++ b/t/t4052-stat-output.sh @@ -136,6 +136,12 @@ do grep " | " output >actual && test_cmp expect actual ' + + test_expect_success "$cmd --stat-graph--width with big change" ' + git $cmd $args --stat-graph-width=26 >output + grep " | " output >actual && + test_cmp expect actual + ' done <<\EOF format-patch -1 --stdout diff HEAD^ HEAD --stat -- 2.26.2