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authorJunio C Hamano <gitster@pobox.com>2011-05-13 11:01:32 -0700
committerJunio C Hamano <gitster@pobox.com>2011-05-13 11:01:32 -0700
commitdf54e2bfd6afd0e7dcf5c658c92f469fdd1b06ff (patch)
treebfd1691bef3f64bd6b05616d2b80a3eeeadad6f3
parentf7d59e256884f63adeed9a1f3376a386a28681ff (diff)
parent7478ac57c4b5cd589cb134d88e8cd78db1247b30 (diff)
downloadgit-df54e2bfd6afd0e7dcf5c658c92f469fdd1b06ff.tar.gz
git-df54e2bfd6afd0e7dcf5c658c92f469fdd1b06ff.tar.xz
Merge branch 'jh/dirstat-lines'
* jh/dirstat-lines: Mark dirstat error messages for translation Improve error handling when parsing dirstat parameters New --dirstat=lines mode, doing dirstat analysis based on diffstat Allow specifying --dirstat cut-off percentage as a floating point number Add config variable for specifying default --dirstat behavior Refactor --dirstat parsing; deprecate --cumulative and --dirstat-by-file Make --dirstat=0 output directories that contribute < 0.1% of changes Add several testcases for --dirstat and friends
-rw-r--r--Documentation/diff-config.txt44
-rw-r--r--Documentation/diff-options.txt54
-rw-r--r--diff.c171
-rw-r--r--diff.h3
-rwxr-xr-xt/t4047-diff-dirstat.sh979
5 files changed, 1219 insertions, 32 deletions
diff --git a/Documentation/diff-config.txt b/Documentation/diff-config.txt
index 2b1605f5c..1aed79e7d 100644
--- a/Documentation/diff-config.txt
+++ b/Documentation/diff-config.txt
@@ -8,6 +8,50 @@ diff.autorefreshindex::
affects only 'git diff' Porcelain, and not lower level
'diff' commands such as 'git diff-files'.
+diff.dirstat::
+ A comma separated list of `--dirstat` parameters specifying the
+ default behavior of the `--dirstat` option to linkgit:git-diff[1]`
+ and friends. The defaults can be overridden on the command line
+ (using `--dirstat=<param1,param2,...>`). The fallback defaults
+ (when not changed by `diff.dirstat`) are `changes,noncumulative,3`.
+ The following parameters are available:
++
+--
+`changes`;;
+ Compute the dirstat numbers by counting the lines that have been
+ removed from the source, or added to the destination. This ignores
+ the amount of pure code movements within a file. In other words,
+ rearranging lines in a file is not counted as much as other changes.
+ This is the default behavior when no parameter is given.
+`lines`;;
+ Compute the dirstat numbers by doing the regular line-based diff
+ analysis, and summing the removed/added line counts. (For binary
+ files, count 64-byte chunks instead, since binary files have no
+ natural concept of lines). This is a more expensive `--dirstat`
+ behavior than the `changes` behavior, but it does count rearranged
+ lines within a file as much as other changes. The resulting output
+ is consistent with what you get from the other `--*stat` options.
+`files`;;
+ Compute the dirstat numbers by counting the number of files changed.
+ Each changed file counts equally in the dirstat analysis. This is
+ the computationally cheapest `--dirstat` behavior, since it does
+ not have to look at the file contents at all.
+`cumulative`;;
+ Count changes in a child directory for the parent directory as well.
+ Note that when using `cumulative`, the sum of the percentages
+ reported may exceed 100%. The default (non-cumulative) behavior can
+ be specified with the `noncumulative` parameter.
+<limit>;;
+ An integer parameter specifies a cut-off percent (3% by default).
+ Directories contributing less than this percentage of the changes
+ are not shown in the output.
+--
++
+Example: The following will count changed files, while ignoring
+directories with less than 10% of the total amount of changed files,
+and accumulating child directory counts in the parent directories:
+`files,10,cumulative`.
+
diff.external::
If this config variable is set, diff generation is not
performed using the internal diff machinery, but using the
diff --git a/Documentation/diff-options.txt b/Documentation/diff-options.txt
index 9ca565d70..c7ed94635 100644
--- a/Documentation/diff-options.txt
+++ b/Documentation/diff-options.txt
@@ -66,19 +66,49 @@ endif::git-format-patch[]
number of modified files, as well as number of added and deleted
lines.
---dirstat[=<limit>]::
- Output the distribution of relative amount of changes (number of lines added or
- removed) for each sub-directory. Directories with changes below
- a cut-off percent (3% by default) are not shown. The cut-off percent
- can be set with `--dirstat=<limit>`. Changes in a child directory are not
- counted for the parent directory, unless `--cumulative` is used.
+--dirstat[=<param1,param2,...>]::
+ Output the distribution of relative amount of changes for each
+ sub-directory. The behavior of `--dirstat` can be customized by
+ passing it a comma separated list of parameters.
+ The defaults are controlled by the `diff.dirstat` configuration
+ variable (see linkgit:git-config[1]).
+ The following parameters are available:
+
-Note that the `--dirstat` option computes the changes while ignoring
-the amount of pure code movements within a file. In other words,
-rearranging lines in a file is not counted as much as other changes.
-
---dirstat-by-file[=<limit>]::
- Same as `--dirstat`, but counts changed files instead of lines.
+--
+`changes`;;
+ Compute the dirstat numbers by counting the lines that have been
+ removed from the source, or added to the destination. This ignores
+ the amount of pure code movements within a file. In other words,
+ rearranging lines in a file is not counted as much as other changes.
+ This is the default behavior when no parameter is given.
+`lines`;;
+ Compute the dirstat numbers by doing the regular line-based diff
+ analysis, and summing the removed/added line counts. (For binary
+ files, count 64-byte chunks instead, since binary files have no
+ natural concept of lines). This is a more expensive `--dirstat`
+ behavior than the `changes` behavior, but it does count rearranged
+ lines within a file as much as other changes. The resulting output
+ is consistent with what you get from the other `--*stat` options.
+`files`;;
+ Compute the dirstat numbers by counting the number of files changed.
+ Each changed file counts equally in the dirstat analysis. This is
+ the computationally cheapest `--dirstat` behavior, since it does
+ not have to look at the file contents at all.
+`cumulative`;;
+ Count changes in a child directory for the parent directory as well.
+ Note that when using `cumulative`, the sum of the percentages
+ reported may exceed 100%. The default (non-cumulative) behavior can
+ be specified with the `noncumulative` parameter.
+<limit>;;
+ An integer parameter specifies a cut-off percent (3% by default).
+ Directories contributing less than this percentage of the changes
+ are not shown in the output.
+--
++
+Example: The following will count changed files, while ignoring
+directories with less than 10% of the total amount of changed files,
+and accumulating child directory counts in the parent directories:
+`--dirstat=files,10,cumulative`.
--summary::
Output a condensed summary of extended header information
diff --git a/diff.c b/diff.c
index feced3434..ba5f7aa21 100644
--- a/diff.c
+++ b/diff.c
@@ -31,6 +31,7 @@ static const char *external_diff_cmd_cfg;
int diff_auto_refresh_index = 1;
static int diff_mnemonic_prefix;
static int diff_no_prefix;
+static int diff_dirstat_permille_default = 30;
static struct diff_options default_diff_options;
static char diff_colors[][COLOR_MAXLEN] = {
@@ -66,6 +67,58 @@ static int parse_diff_color_slot(const char *var, int ofs)
return -1;
}
+static int parse_dirstat_params(struct diff_options *options, const char *params,
+ struct strbuf *errmsg)
+{
+ const char *p = params;
+ int p_len, ret = 0;
+
+ while (*p) {
+ p_len = strchrnul(p, ',') - p;
+ if (!memcmp(p, "changes", p_len)) {
+ DIFF_OPT_CLR(options, DIRSTAT_BY_LINE);
+ DIFF_OPT_CLR(options, DIRSTAT_BY_FILE);
+ } else if (!memcmp(p, "lines", p_len)) {
+ DIFF_OPT_SET(options, DIRSTAT_BY_LINE);
+ DIFF_OPT_CLR(options, DIRSTAT_BY_FILE);
+ } else if (!memcmp(p, "files", p_len)) {
+ DIFF_OPT_CLR(options, DIRSTAT_BY_LINE);
+ DIFF_OPT_SET(options, DIRSTAT_BY_FILE);
+ } else if (!memcmp(p, "noncumulative", p_len)) {
+ DIFF_OPT_CLR(options, DIRSTAT_CUMULATIVE);
+ } else if (!memcmp(p, "cumulative", p_len)) {
+ DIFF_OPT_SET(options, DIRSTAT_CUMULATIVE);
+ } else if (isdigit(*p)) {
+ char *end;
+ int permille = strtoul(p, &end, 10) * 10;
+ if (*end == '.' && isdigit(*++end)) {
+ /* only use first digit */
+ permille += *end - '0';
+ /* .. and ignore any further digits */
+ while (isdigit(*++end))
+ ; /* nothing */
+ }
+ if (end - p == p_len)
+ options->dirstat_permille = permille;
+ else {
+ strbuf_addf(errmsg, _(" Failed to parse dirstat cut-off percentage '%.*s'\n"),
+ p_len, p);
+ ret++;
+ }
+ } else {
+ strbuf_addf(errmsg, _(" Unknown dirstat parameter '%.*s'\n"),
+ p_len, p);
+ ret++;
+ }
+
+ p += p_len;
+
+ if (*p)
+ p++; /* more parameters, swallow separator */
+ }
+ return ret;
+}
+
static int git_config_rename(const char *var, const char *value)
{
if (!value)
@@ -145,6 +198,17 @@ int git_diff_basic_config(const char *var, const char *value, void *cb)
return 0;
}
+ if (!strcmp(var, "diff.dirstat")) {
+ struct strbuf errmsg = STRBUF_INIT;
+ default_diff_options.dirstat_permille = diff_dirstat_permille_default;
+ if (parse_dirstat_params(&default_diff_options, value, &errmsg))
+ warning(_("Found errors in 'diff.dirstat' config variable:\n%s"),
+ errmsg.buf);
+ strbuf_release(&errmsg);
+ diff_dirstat_permille_default = default_diff_options.dirstat_permille;
+ return 0;
+ }
+
if (!prefixcmp(var, "submodule."))
return parse_submodule_config_option(var, value);
@@ -1455,7 +1519,7 @@ struct dirstat_file {
struct dirstat_dir {
struct dirstat_file *files;
- int alloc, nr, percent, cumulative;
+ int alloc, nr, permille, cumulative;
};
static long gather_dirstat(struct diff_options *opt, struct dirstat_dir *dir,
@@ -1502,12 +1566,11 @@ static long gather_dirstat(struct diff_options *opt, struct dirstat_dir *dir,
* under this directory (sources == 1).
*/
if (baselen && sources != 1) {
- int permille = this_dir * 1000 / changed;
- if (permille) {
- int percent = permille / 10;
- if (percent >= dir->percent) {
+ if (this_dir) {
+ int permille = this_dir * 1000 / changed;
+ if (permille >= dir->permille) {
fprintf(opt->file, "%s%4d.%01d%% %.*s\n", line_prefix,
- percent, permille % 10, baselen, base);
+ permille / 10, permille % 10, baselen, base);
if (!dir->cumulative)
return 0;
}
@@ -1533,7 +1596,7 @@ static void show_dirstat(struct diff_options *options)
dir.files = NULL;
dir.alloc = 0;
dir.nr = 0;
- dir.percent = options->dirstat_percent;
+ dir.permille = options->dirstat_permille;
dir.cumulative = DIFF_OPT_TST(options, DIRSTAT_CUMULATIVE);
changed = 0;
@@ -1622,6 +1685,50 @@ found_damage:
gather_dirstat(options, &dir, changed, "", 0);
}
+static void show_dirstat_by_line(struct diffstat_t *data, struct diff_options *options)
+{
+ int i;
+ unsigned long changed;
+ struct dirstat_dir dir;
+
+ if (data->nr == 0)
+ return;
+
+ dir.files = NULL;
+ dir.alloc = 0;
+ dir.nr = 0;
+ dir.permille = options->dirstat_permille;
+ dir.cumulative = DIFF_OPT_TST(options, DIRSTAT_CUMULATIVE);
+
+ changed = 0;
+ for (i = 0; i < data->nr; i++) {
+ struct diffstat_file *file = data->files[i];
+ unsigned long damage = file->added + file->deleted;
+ if (file->is_binary)
+ /*
+ * binary files counts bytes, not lines. Must find some
+ * way to normalize binary bytes vs. textual lines.
+ * The following heuristic assumes that there are 64
+ * bytes per "line".
+ * This is stupid and ugly, but very cheap...
+ */
+ damage = (damage + 63) / 64;
+ ALLOC_GROW(dir.files, dir.nr + 1, dir.alloc);
+ dir.files[dir.nr].name = file->name;
+ dir.files[dir.nr].changed = damage;
+ changed += damage;
+ dir.nr++;
+ }
+
+ /* This can happen even with many files, if everything was renames */
+ if (!changed)
+ return;
+
+ /* Show all directories with more than x% of the changes */
+ qsort(dir.files, dir.nr, sizeof(dir.files[0]), dirstat_compare);
+ gather_dirstat(options, &dir, changed, "", 0);
+}
+
static void free_diffstat_info(struct diffstat_t *diffstat)
{
int i;
@@ -2891,7 +2998,7 @@ void diff_setup(struct diff_options *options)
options->line_termination = '\n';
options->break_opt = -1;
options->rename_limit = -1;
- options->dirstat_percent = 3;
+ options->dirstat_permille = diff_dirstat_permille_default;
options->context = 3;
options->change = diff_change;
@@ -3149,6 +3256,21 @@ static int stat_opt(struct diff_options *options, const char **av)
return argcount;
}
+static int parse_dirstat_opt(struct diff_options *options, const char *params)
+{
+ struct strbuf errmsg = STRBUF_INIT;
+ if (parse_dirstat_params(options, params, &errmsg))
+ die(_("Failed to parse --dirstat/-X option parameter:\n%s"),
+ errmsg.buf);
+ strbuf_release(&errmsg);
+ /*
+ * The caller knows a dirstat-related option is given from the command
+ * line; allow it to say "return this_function();"
+ */
+ options->output_format |= DIFF_FORMAT_DIRSTAT;
+ return 1;
+}
+
int diff_opt_parse(struct diff_options *options, const char **av, int ac)
{
const char *arg = av[0];
@@ -3168,15 +3290,19 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
options->output_format |= DIFF_FORMAT_NUMSTAT;
else if (!strcmp(arg, "--shortstat"))
options->output_format |= DIFF_FORMAT_SHORTSTAT;
- else if (opt_arg(arg, 'X', "dirstat", &options->dirstat_percent))
- options->output_format |= DIFF_FORMAT_DIRSTAT;
- else if (!strcmp(arg, "--cumulative")) {
- options->output_format |= DIFF_FORMAT_DIRSTAT;
- DIFF_OPT_SET(options, DIRSTAT_CUMULATIVE);
- } else if (opt_arg(arg, 0, "dirstat-by-file",
- &options->dirstat_percent)) {
- options->output_format |= DIFF_FORMAT_DIRSTAT;
- DIFF_OPT_SET(options, DIRSTAT_BY_FILE);
+ else if (!strcmp(arg, "-X") || !strcmp(arg, "--dirstat"))
+ return parse_dirstat_opt(options, "");
+ else if (!prefixcmp(arg, "-X"))
+ return parse_dirstat_opt(options, arg + 2);
+ else if (!prefixcmp(arg, "--dirstat="))
+ return parse_dirstat_opt(options, arg + 10);
+ else if (!strcmp(arg, "--cumulative"))
+ return parse_dirstat_opt(options, "cumulative");
+ else if (!strcmp(arg, "--dirstat-by-file"))
+ return parse_dirstat_opt(options, "files");
+ else if (!prefixcmp(arg, "--dirstat-by-file=")) {
+ parse_dirstat_opt(options, "files");
+ return parse_dirstat_opt(options, arg + 18);
}
else if (!strcmp(arg, "--check"))
options->output_format |= DIFF_FORMAT_CHECKDIFF;
@@ -4023,6 +4149,7 @@ void diff_flush(struct diff_options *options)
struct diff_queue_struct *q = &diff_queued_diff;
int i, output_format = options->output_format;
int separator = 0;
+ int dirstat_by_line = 0;
/*
* Order: raw, stat, summary, patch
@@ -4043,7 +4170,11 @@ void diff_flush(struct diff_options *options)
separator++;
}
- if (output_format & (DIFF_FORMAT_DIFFSTAT|DIFF_FORMAT_SHORTSTAT|DIFF_FORMAT_NUMSTAT)) {
+ if (output_format & DIFF_FORMAT_DIRSTAT && DIFF_OPT_TST(options, DIRSTAT_BY_LINE))
+ dirstat_by_line = 1;
+
+ if (output_format & (DIFF_FORMAT_DIFFSTAT|DIFF_FORMAT_SHORTSTAT|DIFF_FORMAT_NUMSTAT) ||
+ dirstat_by_line) {
struct diffstat_t diffstat;
memset(&diffstat, 0, sizeof(struct diffstat_t));
@@ -4058,10 +4189,12 @@ void diff_flush(struct diff_options *options)
show_stats(&diffstat, options);
if (output_format & DIFF_FORMAT_SHORTSTAT)
show_shortstats(&diffstat, options);
+ if (output_format & DIFF_FORMAT_DIRSTAT)
+ show_dirstat_by_line(&diffstat, options);
free_diffstat_info(&diffstat);
separator++;
}
- if (output_format & DIFF_FORMAT_DIRSTAT)
+ if ((output_format & DIFF_FORMAT_DIRSTAT) && !dirstat_by_line)
show_dirstat(options);
if (output_format & DIFF_FORMAT_SUMMARY && !is_summary_empty(q)) {
diff --git a/diff.h b/diff.h
index d83e53e9d..adb40ba27 100644
--- a/diff.h
+++ b/diff.h
@@ -78,6 +78,7 @@ typedef struct strbuf *(*diff_prefix_fn_t)(struct diff_options *opt, void *data)
#define DIFF_OPT_IGNORE_UNTRACKED_IN_SUBMODULES (1 << 25)
#define DIFF_OPT_IGNORE_DIRTY_SUBMODULES (1 << 26)
#define DIFF_OPT_OVERRIDE_SUBMODULE_CONFIG (1 << 27)
+#define DIFF_OPT_DIRSTAT_BY_LINE (1 << 28)
#define DIFF_OPT_TST(opts, flag) ((opts)->flags & DIFF_OPT_##flag)
#define DIFF_OPT_SET(opts, flag) ((opts)->flags |= DIFF_OPT_##flag)
@@ -114,7 +115,7 @@ struct diff_options {
int needed_rename_limit;
int degraded_cc_to_c;
int show_rename_progress;
- int dirstat_percent;
+ int dirstat_permille;
int setup;
int abbrev;
const char *prefix;
diff --git a/t/t4047-diff-dirstat.sh b/t/t4047-diff-dirstat.sh
new file mode 100755
index 000000000..29e80a58c
--- /dev/null
+++ b/t/t4047-diff-dirstat.sh
@@ -0,0 +1,979 @@
+#!/bin/sh
+
+test_description='diff --dirstat tests'
+. ./test-lib.sh
+
+# set up two commits where the second commit has these files
+# (10 lines in each file):
+#
+# unchanged/text (unchanged from 1st commit)
+# changed/text (changed 1st line)
+# rearranged/text (swapped 1st and 2nd line)
+# dst/copy/unchanged/text (copied from src/copy/unchanged/text, unchanged)
+# dst/copy/changed/text (copied from src/copy/changed/text, changed)
+# dst/copy/rearranged/text (copied from src/copy/rearranged/text, rearranged)
+# dst/move/unchanged/text (moved from src/move/unchanged/text, unchanged)
+# dst/move/changed/text (moved from src/move/changed/text, changed)
+# dst/move/rearranged/text (moved from src/move/rearranged/text, rearranged)
+
+test_expect_success 'setup' '
+ mkdir unchanged &&
+ mkdir changed &&
+ mkdir rearranged &&
+ mkdir src &&
+ mkdir src/copy &&
+ mkdir src/copy/unchanged &&
+ mkdir src/copy/changed &&
+ mkdir src/copy/rearranged &&
+ mkdir src/move &&
+ mkdir src/move/unchanged &&
+ mkdir src/move/changed &&
+ mkdir src/move/rearranged &&
+ cat <<EOF >unchanged/text &&
+unchanged line #0
+unchanged line #1
+unchanged line #2
+unchanged line #3
+unchanged line #4
+unchanged line #5
+unchanged line #6
+unchanged line #7
+unchanged line #8
+unchanged line #9
+EOF
+ cat <<EOF >changed/text &&
+changed line #0
+changed line #1
+changed line #2
+changed line #3
+changed line #4
+changed line #5
+changed line #6
+changed line #7
+changed line #8
+changed line #9
+EOF
+ cat <<EOF >rearranged/text &&
+rearranged line #0
+rearranged line #1
+rearranged line #2
+rearranged line #3
+rearranged line #4
+rearranged line #5
+rearranged line #6
+rearranged line #7
+rearranged line #8
+rearranged line #9
+EOF
+ cat <<EOF >src/copy/unchanged/text &&
+copy unchanged line #0
+copy unchanged line #1
+copy unchanged line #2
+copy unchanged line #3
+copy unchanged line #4
+copy unchanged line #5
+copy unchanged line #6
+copy unchanged line #7
+copy unchanged line #8
+copy unchanged line #9
+EOF
+ cat <<EOF >src/copy/changed/text &&
+copy changed line #0
+copy changed line #1
+copy changed line #2
+copy changed line #3
+copy changed line #4
+copy changed line #5
+copy changed line #6
+copy changed line #7
+copy changed line #8
+copy changed line #9
+EOF
+ cat <<EOF >src/copy/rearranged/text &&
+copy rearranged line #0
+copy rearranged line #1
+copy rearranged line #2
+copy rearranged line #3
+copy rearranged line #4
+copy rearranged line #5
+copy rearranged line #6
+copy rearranged line #7
+copy rearranged line #8
+copy rearranged line #9
+EOF
+ cat <<EOF >src/move/unchanged/text &&
+move unchanged line #0
+move unchanged line #1
+move unchanged line #2
+move unchanged line #3
+move unchanged line #4
+move unchanged line #5
+move unchanged line #6
+move unchanged line #7
+move unchanged line #8
+move unchanged line #9
+EOF
+ cat <<EOF >src/move/changed/text &&
+move changed line #0
+move changed line #1
+move changed line #2
+move changed line #3
+move changed line #4
+move changed line #5
+move changed line #6
+move changed line #7
+move changed line #8
+move changed line #9
+EOF
+ cat <<EOF >src/move/rearranged/text &&
+move rearranged line #0
+move rearranged line #1
+move rearranged line #2
+move rearranged line #3
+move rearranged line #4
+move rearranged line #5
+move rearranged line #6
+move rearranged line #7
+move rearranged line #8
+move rearranged line #9
+EOF
+ git add . &&
+ git commit -m "initial" &&
+ mkdir dst &&
+ mkdir dst/copy &&
+ mkdir dst/copy/unchanged &&
+ mkdir dst/copy/changed &&
+ mkdir dst/copy/rearranged &&
+ mkdir dst/move &&
+ mkdir dst/move/unchanged &&
+ mkdir dst/move/changed &&
+ mkdir dst/move/rearranged &&
+ cat <<EOF >changed/text &&
+CHANGED XXXXXXX line #0
+changed line #1
+changed line #2
+changed line #3
+changed line #4
+changed line #5
+changed line #6
+changed line #7
+changed line #8
+changed line #9
+EOF
+ cat <<EOF >rearranged/text &&
+rearranged line #1
+rearranged line #0
+rearranged line #2
+rearranged line #3
+rearranged line #4
+rearranged line #5
+rearranged line #6
+rearranged line #7
+rearranged line #8
+rearranged line #9
+EOF
+ cat <<EOF >dst/copy/unchanged/text &&
+copy unchanged line #0
+copy unchanged line #1
+copy unchanged line #2
+copy unchanged line #3
+copy unchanged line #4
+copy unchanged line #5
+copy unchanged line #6
+copy unchanged line #7
+copy unchanged line #8
+copy unchanged line #9
+EOF
+ cat <<EOF >dst/copy/changed/text &&
+copy XXXCHANGED line #0
+copy changed line #1
+copy changed line #2
+copy changed line #3
+copy changed line #4
+copy changed line #5
+copy changed line #6
+copy changed line #7
+copy changed line #8
+copy changed line #9
+EOF
+ cat <<EOF >dst/copy/rearranged/text &&
+copy rearranged line #1
+copy rearranged line #0
+copy rearranged line #2
+copy rearranged line #3
+copy rearranged line #4
+copy rearranged line #5
+copy rearranged line #6
+copy rearranged line #7
+copy rearranged line #8
+copy rearranged line #9
+EOF
+ cat <<EOF >dst/move/unchanged/text &&
+move unchanged line #0
+move unchanged line #1
+move unchanged line #2
+move unchanged line #3
+move unchanged line #4
+move unchanged line #5
+move unchanged line #6
+move unchanged line #7
+move unchanged line #8
+move unchanged line #9
+EOF
+ cat <<EOF >dst/move/changed/text &&
+move XXXCHANGED line #0
+move changed line #1
+move changed line #2
+move changed line #3
+move changed line #4
+move changed line #5
+move changed line #6
+move changed line #7
+move changed line #8
+move changed line #9
+EOF
+ cat <<EOF >dst/move/rearranged/text &&
+move rearranged line #1
+move rearranged line #0
+move rearranged line #2
+move rearranged line #3
+move rearranged line #4
+move rearranged line #5
+move rearranged line #6
+move rearranged line #7
+move rearranged line #8
+move rearranged line #9
+EOF
+ git add . &&
+ git rm -r src/move/unchanged &&
+ git rm -r src/move/changed &&
+ git rm -r src/move/rearranged &&
+ git commit -m "changes"
+'
+
+cat <<EOF >expect_diff_stat
+ changed/text | 2 +-
+ dst/copy/changed/text | 10 ++++++++++
+ dst/copy/rearranged/text | 10 ++++++++++
+ dst/copy/unchanged/text | 10 ++++++++++
+ dst/move/changed/text | 10 ++++++++++
+ dst/move/rearranged/text | 10 ++++++++++
+ dst/move/unchanged/text | 10 ++++++++++
+ rearranged/text | 2 +-
+ src/move/changed/text | 10 ----------
+ src/move/rearranged/text | 10 ----------
+ src/move/unchanged/text | 10 ----------
+ 11 files changed, 62 insertions(+), 32 deletions(-)
+EOF
+
+cat <<EOF >expect_diff_stat_M
+ changed/text | 2 +-
+ dst/copy/changed/text | 10 ++++++++++
+ dst/copy/rearranged/text | 10 ++++++++++
+ dst/copy/unchanged/text | 10 ++++++++++
+ {src => dst}/move/changed/text | 2 +-
+ {src => dst}/move/rearranged/text | 2 +-
+ {src => dst}/move/unchanged/text | 0
+ rearranged/text | 2 +-
+ 8 files changed, 34 insertions(+), 4 deletions(-)
+EOF
+
+cat <<EOF >expect_diff_stat_CC
+ changed/text | 2 +-
+ {src => dst}/copy/changed/text | 2 +-
+ {src => dst}/copy/rearranged/text | 2 +-
+ {src => dst}/copy/unchanged/text | 0
+ {src => dst}/move/changed/text | 2 +-
+ {src => dst}/move/rearranged/text | 2 +-
+ {src => dst}/move/unchanged/text | 0
+ rearranged/text | 2 +-
+ 8 files changed, 6 insertions(+), 6 deletions(-)
+EOF
+
+test_expect_success 'sanity check setup (--stat)' '
+ git diff --stat HEAD^..HEAD >actual_diff_stat &&
+ test_cmp expect_diff_stat actual_diff_stat &&
+ git diff --stat -M HEAD^..HEAD >actual_diff_stat_M &&
+ test_cmp expect_diff_stat_M actual_diff_stat_M &&
+ git diff --stat -C -C HEAD^..HEAD >actual_diff_stat_CC &&
+ test_cmp expect_diff_stat_CC actual_diff_stat_CC
+'
+
+# changed/text and rearranged/text falls below default 3% threshold
+cat <<EOF >expect_diff_dirstat
+ 10.8% dst/copy/changed/
+ 10.8% dst/copy/rearranged/
+ 10.8% dst/copy/unchanged/
+ 10.8% dst/move/changed/
+ 10.8% dst/move/rearranged/
+ 10.8% dst/move/unchanged/
+ 10.8% src/move/changed/
+ 10.8% src/move/rearranged/
+ 10.8% src/move/unchanged/
+EOF
+
+# rearranged/text falls below default 3% threshold
+cat <<EOF >expect_diff_dirstat_M
+ 5.8% changed/
+ 29.3% dst/copy/changed/
+ 29.3% dst/copy/rearranged/
+ 29.3% dst/copy/unchanged/
+ 5.8% dst/move/changed/
+EOF
+
+# rearranged/text falls below default 3% threshold
+cat <<EOF >expect_diff_dirstat_CC
+ 32.6% changed/
+ 32.6% dst/copy/changed/
+ 32.6% dst/move/changed/
+EOF
+
+test_expect_success 'various ways to misspell --dirstat' '
+ test_must_fail git show --dirstat10 &&
+ test_must_fail git show --dirstat10,files &&
+ test_must_fail git show -X=20 &&
+ test_must_fail git show -X=20,cumulative
+'
+
+test_expect_success 'vanilla --dirstat' '
+ git diff --dirstat HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git diff --dirstat -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git diff --dirstat -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+test_expect_success 'vanilla -X' '
+ git diff -X HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git diff -X -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git diff -X -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+test_expect_success 'explicit defaults: --dirstat=changes,noncumulative,3' '
+ git diff --dirstat=changes,noncumulative,3 HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git diff --dirstat=changes,noncumulative,3 -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git diff --dirstat=changes,noncumulative,3 -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+test_expect_success 'explicit defaults: -Xchanges,noncumulative,3' '
+ git diff -Xchanges,noncumulative,3 HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git diff -Xchanges,noncumulative,3 -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git diff -Xchanges,noncumulative,3 -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+test_expect_success 'later options override earlier options:' '
+ git diff --dirstat=files,10,cumulative,changes,noncumulative,3 HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git diff --dirstat=files,10,cumulative,changes,noncumulative,3 -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git diff --dirstat=files,10,cumulative,changes,noncumulative,3 -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+ git diff --dirstat=files --dirstat=10 --dirstat=cumulative --dirstat=changes --dirstat=noncumulative -X3 HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git diff --dirstat=files --dirstat=10 --dirstat=cumulative --dirstat=changes --dirstat=noncumulative -X3 -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git diff --dirstat=files --dirstat=10 --dirstat=cumulative --dirstat=changes --dirstat=noncumulative -X3 -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+test_expect_success 'non-defaults in config overridden by explicit defaults on command line' '
+ git -c diff.dirstat=files,cumulative,50 diff --dirstat=changes,noncumulative,3 HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git -c diff.dirstat=files,cumulative,50 diff --dirstat=changes,noncumulative,3 -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git -c diff.dirstat=files,cumulative,50 diff --dirstat=changes,noncumulative,3 -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+cat <<EOF >expect_diff_dirstat
+ 2.1% changed/
+ 10.8% dst/copy/changed/
+ 10.8% dst/copy/rearranged/
+ 10.8% dst/copy/unchanged/
+ 10.8% dst/move/changed/
+ 10.8% dst/move/rearranged/
+ 10.8% dst/move/unchanged/
+ 0.0% rearranged/
+ 10.8% src/move/changed/
+ 10.8% src/move/rearranged/
+ 10.8% src/move/unchanged/
+EOF
+
+cat <<EOF >expect_diff_dirstat_M
+ 5.8% changed/
+ 29.3% dst/copy/changed/
+ 29.3% dst/copy/rearranged/
+ 29.3% dst/copy/unchanged/
+ 5.8% dst/move/changed/
+ 0.1% dst/move/rearranged/
+ 0.1% rearranged/
+EOF
+
+cat <<EOF >expect_diff_dirstat_CC
+ 32.6% changed/
+ 32.6% dst/copy/changed/
+ 0.6% dst/copy/rearranged/
+ 32.6% dst/move/changed/
+ 0.6% dst/move/rearranged/
+ 0.6% rearranged/
+EOF
+
+test_expect_success '--dirstat=0' '
+ git diff --dirstat=0 HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git diff --dirstat=0 -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git diff --dirstat=0 -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+test_expect_success '-X0' '
+ git diff -X0 HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git diff -X0 -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git diff -X0 -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+test_expect_success 'diff.dirstat=0' '
+ git -c diff.dirstat=0 diff --dirstat HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git -c diff.dirstat=0 diff --dirstat -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git -c diff.dirstat=0 diff --dirstat -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+cat <<EOF >expect_diff_dirstat
+ 2.1% changed/
+ 10.8% dst/copy/changed/
+ 10.8% dst/copy/rearranged/
+ 10.8% dst/copy/unchanged/
+ 32.5% dst/copy/
+ 10.8% dst/move/changed/
+ 10.8% dst/move/rearranged/
+ 10.8% dst/move/unchanged/
+ 32.5% dst/move/
+ 65.1% dst/
+ 0.0% rearranged/
+ 10.8% src/move/changed/
+ 10.8% src/move/rearranged/
+ 10.8% src/move/unchanged/
+ 32.5% src/move/
+EOF
+
+cat <<EOF >expect_diff_dirstat_M
+ 5.8% changed/
+ 29.3% dst/copy/changed/
+ 29.3% dst/copy/rearranged/
+ 29.3% dst/copy/unchanged/
+ 88.0% dst/copy/
+ 5.8% dst/move/changed/
+ 0.1% dst/move/rearranged/
+ 5.9% dst/move/
+ 94.0% dst/
+ 0.1% rearranged/
+EOF
+
+cat <<EOF >expect_diff_dirstat_CC
+ 32.6% changed/
+ 32.6% dst/copy/changed/
+ 0.6% dst/copy/rearranged/
+ 33.3% dst/copy/
+ 32.6% dst/move/changed/
+ 0.6% dst/move/rearranged/
+ 33.3% dst/move/
+ 66.6% dst/
+ 0.6% rearranged/
+EOF
+
+test_expect_success '--dirstat=0 --cumulative' '
+ git diff --dirstat=0 --cumulative HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git diff --dirstat=0 --cumulative -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git diff --dirstat=0 --cumulative -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+test_expect_success '--dirstat=0,cumulative' '
+ git diff --dirstat=0,cumulative HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git diff --dirstat=0,cumulative -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git diff --dirstat=0,cumulative -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+test_expect_success '-X0,cumulative' '
+ git diff -X0,cumulative HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git diff -X0,cumulative -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git diff -X0,cumulative -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+test_expect_success 'diff.dirstat=0,cumulative' '
+ git -c diff.dirstat=0,cumulative diff --dirstat HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git -c diff.dirstat=0,cumulative diff --dirstat -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git -c diff.dirstat=0,cumulative diff --dirstat -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+test_expect_success 'diff.dirstat=0 & --dirstat=cumulative' '
+ git -c diff.dirstat=0 diff --dirstat=cumulative HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git -c diff.dirstat=0 diff --dirstat=cumulative -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git -c diff.dirstat=0 diff --dirstat=cumulative -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+cat <<EOF >expect_diff_dirstat
+ 9.0% changed/
+ 9.0% dst/copy/changed/
+ 9.0% dst/copy/rearranged/
+ 9.0% dst/copy/unchanged/
+ 9.0% dst/move/changed/
+ 9.0% dst/move/rearranged/
+ 9.0% dst/move/unchanged/
+ 9.0% rearranged/
+ 9.0% src/move/changed/
+ 9.0% src/move/rearranged/
+ 9.0% src/move/unchanged/
+EOF
+
+cat <<EOF >expect_diff_dirstat_M
+ 14.2% changed/
+ 14.2% dst/copy/changed/
+ 14.2% dst/copy/rearranged/
+ 14.2% dst/copy/unchanged/
+ 14.2% dst/move/changed/
+ 14.2% dst/move/rearranged/
+ 14.2% rearranged/
+EOF
+
+cat <<EOF >expect_diff_dirstat_CC
+ 16.6% changed/
+ 16.6% dst/copy/changed/
+ 16.6% dst/copy/rearranged/
+ 16.6% dst/move/changed/
+ 16.6% dst/move/rearranged/
+ 16.6% rearranged/
+EOF
+
+test_expect_success '--dirstat-by-file' '
+ git diff --dirstat-by-file HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git diff --dirstat-by-file -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git diff --dirstat-by-file -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+test_expect_success '--dirstat=files' '
+ git diff --dirstat=files HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git diff --dirstat=files -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git diff --dirstat=files -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+test_expect_success 'diff.dirstat=files' '
+ git -c diff.dirstat=files diff --dirstat HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git -c diff.dirstat=files diff --dirstat -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git -c diff.dirstat=files diff --dirstat -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+cat <<EOF >expect_diff_dirstat
+ 27.2% dst/copy/
+ 27.2% dst/move/
+ 27.2% src/move/
+EOF
+
+cat <<EOF >expect_diff_dirstat_M
+ 14.2% changed/
+ 14.2% dst/copy/changed/
+ 14.2% dst/copy/rearranged/
+ 14.2% dst/copy/unchanged/
+ 14.2% dst/move/changed/
+ 14.2% dst/move/rearranged/
+ 14.2% rearranged/
+EOF
+
+cat <<EOF >expect_diff_dirstat_CC
+ 16.6% changed/
+ 16.6% dst/copy/changed/
+ 16.6% dst/copy/rearranged/
+ 16.6% dst/move/changed/
+ 16.6% dst/move/rearranged/
+ 16.6% rearranged/
+EOF
+
+test_expect_success '--dirstat-by-file=10' '
+ git diff --dirstat-by-file=10 HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git diff --dirstat-by-file=10 -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git diff --dirstat-by-file=10 -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+test_expect_success '--dirstat=files,10' '
+ git diff --dirstat=files,10 HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git diff --dirstat=files,10 -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git diff --dirstat=files,10 -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+test_expect_success 'diff.dirstat=10,files' '
+ git -c diff.dirstat=10,files diff --dirstat HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git -c diff.dirstat=10,files diff --dirstat -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git -c diff.dirstat=10,files diff --dirstat -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+cat <<EOF >expect_diff_dirstat
+ 9.0% changed/
+ 9.0% dst/copy/changed/
+ 9.0% dst/copy/rearranged/
+ 9.0% dst/copy/unchanged/
+ 27.2% dst/copy/
+ 9.0% dst/move/changed/
+ 9.0% dst/move/rearranged/
+ 9.0% dst/move/unchanged/
+ 27.2% dst/move/
+ 54.5% dst/
+ 9.0% rearranged/
+ 9.0% src/move/changed/
+ 9.0% src/move/rearranged/
+ 9.0% src/move/unchanged/
+ 27.2% src/move/
+EOF
+
+cat <<EOF >expect_diff_dirstat_M
+ 14.2% changed/
+ 14.2% dst/copy/changed/
+ 14.2% dst/copy/rearranged/
+ 14.2% dst/copy/unchanged/
+ 42.8% dst/copy/
+ 14.2% dst/move/changed/
+ 14.2% dst/move/rearranged/
+ 28.5% dst/move/
+ 71.4% dst/
+ 14.2% rearranged/
+EOF
+
+cat <<EOF >expect_diff_dirstat_CC
+ 16.6% changed/
+ 16.6% dst/copy/changed/
+ 16.6% dst/copy/rearranged/
+ 33.3% dst/copy/
+ 16.6% dst/move/changed/
+ 16.6% dst/move/rearranged/
+ 33.3% dst/move/
+ 66.6% dst/
+ 16.6% rearranged/
+EOF
+
+test_expect_success '--dirstat-by-file --cumulative' '
+ git diff --dirstat-by-file --cumulative HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git diff --dirstat-by-file --cumulative -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git diff --dirstat-by-file --cumulative -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+test_expect_success '--dirstat=files,cumulative' '
+ git diff --dirstat=files,cumulative HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git diff --dirstat=files,cumulative -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git diff --dirstat=files,cumulative -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+test_expect_success 'diff.dirstat=cumulative,files' '
+ git -c diff.dirstat=cumulative,files diff --dirstat HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git -c diff.dirstat=cumulative,files diff --dirstat -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git -c diff.dirstat=cumulative,files diff --dirstat -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+cat <<EOF >expect_diff_dirstat
+ 27.2% dst/copy/
+ 27.2% dst/move/
+ 54.5% dst/
+ 27.2% src/move/
+EOF
+
+cat <<EOF >expect_diff_dirstat_M
+ 14.2% changed/
+ 14.2% dst/copy/changed/
+ 14.2% dst/copy/rearranged/
+ 14.2% dst/copy/unchanged/
+ 42.8% dst/copy/
+ 14.2% dst/move/changed/
+ 14.2% dst/move/rearranged/
+ 28.5% dst/move/
+ 71.4% dst/
+ 14.2% rearranged/
+EOF
+
+cat <<EOF >expect_diff_dirstat_CC
+ 16.6% changed/
+ 16.6% dst/copy/changed/
+ 16.6% dst/copy/rearranged/
+ 33.3% dst/copy/
+ 16.6% dst/move/changed/
+ 16.6% dst/move/rearranged/
+ 33.3% dst/move/
+ 66.6% dst/
+ 16.6% rearranged/
+EOF
+
+test_expect_success '--dirstat=files,cumulative,10' '
+ git diff --dirstat=files,cumulative,10 HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git diff --dirstat=files,cumulative,10 -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git diff --dirstat=files,cumulative,10 -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+test_expect_success 'diff.dirstat=10,cumulative,files' '
+ git -c diff.dirstat=10,cumulative,files diff --dirstat HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git -c diff.dirstat=10,cumulative,files diff --dirstat -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git -c diff.dirstat=10,cumulative,files diff --dirstat -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+cat <<EOF >expect_diff_dirstat
+ 27.2% dst/copy/
+ 27.2% dst/move/
+ 54.5% dst/
+ 27.2% src/move/
+EOF
+
+cat <<EOF >expect_diff_dirstat_M
+ 42.8% dst/copy/
+ 28.5% dst/move/
+ 71.4% dst/
+EOF
+
+cat <<EOF >expect_diff_dirstat_CC
+ 33.3% dst/copy/
+ 33.3% dst/move/
+ 66.6% dst/
+EOF
+
+test_expect_success '--dirstat=files,cumulative,16.7' '
+ git diff --dirstat=files,cumulative,16.7 HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git diff --dirstat=files,cumulative,16.7 -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git diff --dirstat=files,cumulative,16.7 -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+test_expect_success 'diff.dirstat=16.7,cumulative,files' '
+ git -c diff.dirstat=16.7,cumulative,files diff --dirstat HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git -c diff.dirstat=16.7,cumulative,files diff --dirstat -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git -c diff.dirstat=16.7,cumulative,files diff --dirstat -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+test_expect_success 'diff.dirstat=16.70,cumulative,files' '
+ git -c diff.dirstat=16.70,cumulative,files diff --dirstat HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git -c diff.dirstat=16.70,cumulative,files diff --dirstat -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git -c diff.dirstat=16.70,cumulative,files diff --dirstat -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+test_expect_success '--dirstat=files,cumulative,27.2' '
+ git diff --dirstat=files,cumulative,27.2 HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git diff --dirstat=files,cumulative,27.2 -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git diff --dirstat=files,cumulative,27.2 -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+test_expect_success '--dirstat=files,cumulative,27.09' '
+ git diff --dirstat=files,cumulative,27.09 HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git diff --dirstat=files,cumulative,27.09 -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git diff --dirstat=files,cumulative,27.09 -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+cat <<EOF >expect_diff_dirstat
+ 10.6% dst/copy/changed/
+ 10.6% dst/copy/rearranged/
+ 10.6% dst/copy/unchanged/
+ 10.6% dst/move/changed/
+ 10.6% dst/move/rearranged/
+ 10.6% dst/move/unchanged/
+ 10.6% src/move/changed/
+ 10.6% src/move/rearranged/
+ 10.6% src/move/unchanged/
+EOF
+
+cat <<EOF >expect_diff_dirstat_M
+ 5.2% changed/
+ 26.3% dst/copy/changed/
+ 26.3% dst/copy/rearranged/
+ 26.3% dst/copy/unchanged/
+ 5.2% dst/move/changed/
+ 5.2% dst/move/rearranged/
+ 5.2% rearranged/
+EOF
+
+cat <<EOF >expect_diff_dirstat_CC
+ 16.6% changed/
+ 16.6% dst/copy/changed/
+ 16.6% dst/copy/rearranged/
+ 16.6% dst/move/changed/
+ 16.6% dst/move/rearranged/
+ 16.6% rearranged/
+EOF
+
+test_expect_success '--dirstat=lines' '
+ git diff --dirstat=lines HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git diff --dirstat=lines -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git diff --dirstat=lines -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+test_expect_success 'diff.dirstat=lines' '
+ git -c diff.dirstat=lines diff --dirstat HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git -c diff.dirstat=lines diff --dirstat -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git -c diff.dirstat=lines diff --dirstat -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+cat <<EOF >expect_diff_dirstat
+ 2.1% changed/
+ 10.6% dst/copy/changed/
+ 10.6% dst/copy/rearranged/
+ 10.6% dst/copy/unchanged/
+ 10.6% dst/move/changed/
+ 10.6% dst/move/rearranged/
+ 10.6% dst/move/unchanged/
+ 2.1% rearranged/
+ 10.6% src/move/changed/
+ 10.6% src/move/rearranged/
+ 10.6% src/move/unchanged/
+EOF
+
+cat <<EOF >expect_diff_dirstat_M
+ 5.2% changed/
+ 26.3% dst/copy/changed/
+ 26.3% dst/copy/rearranged/
+ 26.3% dst/copy/unchanged/
+ 5.2% dst/move/changed/
+ 5.2% dst/move/rearranged/
+ 5.2% rearranged/
+EOF
+
+cat <<EOF >expect_diff_dirstat_CC
+ 16.6% changed/
+ 16.6% dst/copy/changed/
+ 16.6% dst/copy/rearranged/
+ 16.6% dst/move/changed/
+ 16.6% dst/move/rearranged/
+ 16.6% rearranged/
+EOF
+
+test_expect_success '--dirstat=lines,0' '
+ git diff --dirstat=lines,0 HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git diff --dirstat=lines,0 -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git diff --dirstat=lines,0 -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+test_expect_success 'diff.dirstat=0,lines' '
+ git -c diff.dirstat=0,lines diff --dirstat HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git -c diff.dirstat=0,lines diff --dirstat -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git -c diff.dirstat=0,lines diff --dirstat -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+test_expect_success '--dirstat=future_param,lines,0 should fail loudly' '
+ test_must_fail git diff --dirstat=future_param,lines,0 HEAD^..HEAD >actual_diff_dirstat 2>actual_error &&
+ test_debug "cat actual_error" &&
+ test_cmp /dev/null actual_diff_dirstat &&
+ test_i18ngrep -q "future_param" actual_error &&
+ test_i18ngrep -q "\--dirstat" actual_error
+'
+
+test_expect_success '--dirstat=dummy1,cumulative,2dummy should report both unrecognized parameters' '
+ test_must_fail git diff --dirstat=dummy1,cumulative,2dummy HEAD^..HEAD >actual_diff_dirstat 2>actual_error &&
+ test_debug "cat actual_error" &&
+ test_cmp /dev/null actual_diff_dirstat &&
+ test_i18ngrep -q "dummy1" actual_error &&
+ test_i18ngrep -q "2dummy" actual_error &&
+ test_i18ngrep -q "\--dirstat" actual_error
+'
+
+test_expect_success 'diff.dirstat=future_param,0,lines should warn, but still work' '
+ git -c diff.dirstat=future_param,0,lines diff --dirstat HEAD^..HEAD >actual_diff_dirstat 2>actual_error &&
+ test_debug "cat actual_error" &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ test_i18ngrep -q "future_param" actual_error &&
+ test_i18ngrep -q "diff\\.dirstat" actual_error &&
+
+ git -c diff.dirstat=future_param,0,lines diff --dirstat -M HEAD^..HEAD >actual_diff_dirstat_M 2>actual_error &&
+ test_debug "cat actual_error" &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ test_i18ngrep -q "future_param" actual_error &&
+ test_i18ngrep -q "diff\\.dirstat" actual_error &&
+
+ git -c diff.dirstat=future_param,0,lines diff --dirstat -C -C HEAD^..HEAD >actual_diff_dirstat_CC 2>actual_error &&
+ test_debug "cat actual_error" &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC &&
+ test_i18ngrep -q "future_param" actual_error &&
+ test_i18ngrep -q "diff\\.dirstat" actual_error
+'
+
+test_done