diff --dirstat-by-file: count changed files, not lines

This new option --dirstat-by-file is the same as --dirstat, but it
counts "impacted files" instead of "impacted lines" (lines that are
added or removed).

Signed-off-by: Heikki Orsila <heikki.orsila@iki.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Heikki Orsila 2008-09-05 22:27:35 +03:00 committed by Junio C Hamano
parent 80d12c23de
commit fd33777b78
3 changed files with 13 additions and 1 deletions

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@ -65,6 +65,9 @@ endif::git-format-patch[]
can be set with "--dirstat=limit". Changes in a child directory is not
counted for the parent directory, unless "--cumulative" is used.
--dirstat-by-file[=limit]::
Same as --dirstat, but counts changed files instead of lines.
--summary::
Output a condensed summary of extended header information
such as creations, renames and mode changes.

10
diff.c
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@ -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 --dirstat-by-file 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 (DIFF_OPT_TST(options, DIRSTAT_BY_FILE) && damage > 0)
damage = 1;
ALLOC_GROW(dir.files, dir.nr + 1, dir.alloc);
dir.files[dir.nr].name = name;
@ -2476,6 +2480,10 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
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, "--check"))
options->output_format |= DIFF_FORMAT_CHECKDIFF;

1
diff.h
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@ -64,6 +64,7 @@ typedef void (*diff_format_fn_t)(struct diff_queue_struct *q,
#define DIFF_OPT_RELATIVE_NAME (1 << 17)
#define DIFF_OPT_IGNORE_SUBMODULES (1 << 18)
#define DIFF_OPT_DIRSTAT_CUMULATIVE (1 << 19)
#define DIFF_OPT_DIRSTAT_BY_FILE (1 << 20)
#define DIFF_OPT_TST(opts, flag) ((opts)->flags & DIFF_OPT_##flag)
#define DIFF_OPT_SET(opts, flag) ((opts)->flags |= DIFF_OPT_##flag)
#define DIFF_OPT_CLR(opts, flag) ((opts)->flags &= ~DIFF_OPT_##flag)