--filedirstat is the same as --dirstat, but it counts "damaged files"
instead of "damaged lines" (lines that are added or removed).
Signed-off-by: Heikki Orsila <heikki.orsila@xxxxxx>
---
Example of Linux v2.6.25..v2.6.26:
$ git diff --filedirstat v2.6.25..v2.6.26
3.3% arch/arm/
6.0% arch/powerpc/
3.8% arch/x86/
12.1% arch/
3.4% drivers/media/video/
6.8% drivers/net/
26.5% drivers/
6.4% fs/
4.5% include/linux/
13.0% include/
5.9% net/
$ git diff --dirstat v2.6.25..v2.6.26
4.9% arch/arm/
9.0% arch/powerpc/configs/
14.6% arch/
5.0% drivers/media/video/
4.2% drivers/media/
5.5% drivers/net/sk98lin/
6.6% drivers/net/wireless/
5.7% drivers/net/
4.8% drivers/s390/net/
17.8% drivers/
6.4% include/
5.1% net/
Documentation/diff-options.txt | 3 +++
diff.c | 11 +++++++++--
diff.h | 1 +
3 files changed, 13 insertions(+), 2 deletions(-)
diff --git a/Documentation/diff-options.txt b/Documentation/diff-options.txt
index 1759386..6e84f40 100644
--- a/Documentation/diff-options.txt
+++ b/Documentation/diff-options.txt
@@ -66,6 +66,9 @@ endif::git-format-patch[]
the "--cumulative" flag, which adds up percentages recursively
even when they have been already reported for a sub-directory.
+--filedirstat[=limit]::
+ Same as --dirstat, but count changed files instead of lines.
+
--summary::
Output a condensed summary of extended header information
such as creations, renames and mode changes.
diff --git a/diff.c b/diff.c
index 135dec4..48f33d6 100644
--- a/diff.c
+++ b/diff.c
@@ -1110,9 +1110,13 @@ static void show_dirstat(struct diff_options *options)
/*
* Original minus copied is the removed material,
* added is the new material. They are both damages
- * made to the preimage.
+ * made to the preimage. In --filedirstat mode, count
+ * damaged files, not damaged lines. This is done by
+ * counting only a single damaged line per file.
*/
damage = (p->one->size - copied) + added;
+ if (options->filedirstat && damage > 0)
+ damage = 1;
ALLOC_GROW(dir.files, dir.nr + 1, dir.alloc);
dir.files[dir.nr].name = name;
@@ -2474,7 +2478,10 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
options->output_format |= DIFF_FORMAT_DIRSTAT;
else if (!strcmp(arg, "--cumulative"))
options->output_format |= DIFF_FORMAT_CUMULATIVE;
- else if (!strcmp(arg, "--check"))
+ else if (opt_arg(arg, 'X', "filedirstat", &options->dirstat_percent)) {
+ options->output_format |= DIFF_FORMAT_DIRSTAT;
+ options->filedirstat = 1;
+ } else if (!strcmp(arg, "--check"))
options->output_format |= DIFF_FORMAT_CHECKDIFF;
else if (!strcmp(arg, "--summary"))
options->output_format |= DIFF_FORMAT_SUMMARY;
diff --git a/diff.h b/diff.h
index 50fb5dd..2832bb8 100644
--- a/diff.h
+++ b/diff.h
@@ -86,6 +86,7 @@ struct diff_options {
int rename_limit;
int warn_on_too_large_rename;
int dirstat_percent;
+ int filedirstat;
int setup;
int abbrev;
const char *prefix;
--
1.6.0.1
--
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