The primary thing Linus's patch wanted to change was to make sure
that 0-line change appears for a mode-only change. Update the
first test to chmod a file that we can see in the output (limited
by --stat-count) to demonstrate it. Also make sure to use test_chmod
and compare the index and the tree, so that we can run this test
even on a filesystem without permission bits.
Later two tests are about fixes to separate issues that were
introduced and/or uncovered by Linus's patch as a side effect, but
the issues are not related to mode-only changes. Remove chmod from
the tests.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Even though we show a separate *UNMERGED* entry in the patch and
diffstat output (or in the --raw format, for that matter) in
addition to and separately from the diff against the specified stage
(defaulting to #2) for unmerged paths, they should not be counted in
the total number of files affected---that would lead to counting the
same path twice.
The separation done by the previous step makes this fix simple and
straightforward. Among the filepairs in diff_queue, paths that
weren't modified, and the extra "unmerged" entries do not count as
total number of files.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The diffstat generation logic, with --stat-count limit, is
implemented as three loops.
- The first counts the width necessary to show stats up to
specified number of entries, and notes up to how many entries in
the data we need to iterate to show the graph;
- The second iterates that many times to draw the graph, adjusts
the number of "total modified files", and counts the total
added/deleted lines for the part that was shown in the graph;
- The third iterates over the remainder and only does the part to
count "total added/deleted lines" and to adjust "total modified
files" without drawing anything.
Move the logic to count added/deleted lines and modified files from
the second loop to the third loop.
This incidentally fixes a bug. The third loop was not filtering
binary changes (counted in bytes) from the total added/deleted as it
should. The second loop implemented this correctly, so if a binary
change appeared earlier than the --stat-count cutoff, the code
counted number of added/deleted lines correctly, but if it appeared
beyond the cutoff, the number of lines would have mixed with the
byte count in the buggy third loop.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
There are a few problems in diff.c around --stat area, partially
caused by the recent 74faaa1 (Fix "git diff --stat" for interesting
- but empty - file changes, 2012-10-17), and largely caused by the
earlier change that introduced when --stat-count was added.
Add a few test pieces to t4049 to expose the issues.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The behavior of "git diff --stat" is rather odd for files that have
zero lines of changes: it will discount them entirely unless they were
renames.
Which means that the stat output will simply not show files that only
had "other" changes: they were created or deleted, or their mode was
changed.
Now, those changes do show up in the summary, but so do renames, so
the diffstat logic is inconsistent. Why does it show renames with zero
lines changed, but not mode changes or added files with zero lines
changed?
So change the logic to not check for "is_renamed", but for
"is_interesting" instead, where "interesting" is judged to be any
action but a pure data change (because a pure data change with zero
data changed really isn't worth showing, if we ever get one in our
diffpairs).
So if you did
chmod +x Makefile
git diff --stat
before, it would show empty (" 0 files changed"), with this it shows
Makefile | 0
1 file changed, 0 insertions(+), 0 deletions(-)
which I think is a more correct diffstat (and then with "--summary" it
shows *what* the metadata change to Makefile was - this is completely
consistent with our handling of renamed files).
Side note: the old behavior was *really* odd. With no changes at all,
"git diff --stat" output was empty. With just a chmod, it said "0
files changed". No way is our legacy behavior sane.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Number of columns required for change counts is now computed based on
the maximum number of changed lines instead of being fixed. This means
that usually a few more columns will be available for the filenames
and the graph.
The graph width logic is also modified to include enough space for
"Bin XXX -> YYY bytes".
If changes to binary files are mixed with changes to text files,
change counts are padded to take at least three columns. And the other
way around, if change counts require more than three columns, then
"Bin"s are padded to align with the change count. This way, the +-
part starts in the same column as "XXX -> YYY" part for binary files.
This makes the graph easier to parse visually thanks to the empty
column. This mimics the layout of diff --stat before this change.
Tests and the tutorial are updated to reflect the new --stat output.
This means either the removal of extra padding and/or the addition of
up to three extra characters to truncated filenames. One test is added
to check the graph alignment when a binary file change and text file
change of more than 999 lines are committed together.
Signed-off-by: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Ever since v1.7.9.2~13 (2012-02-01), git's diffstat-style summary line
produced by "git apply --stat", "git diff --stat", and "git commit"
varies by locale, producing test failures when GETTEXT_POISON is set.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git diff --stat" and "git apply --stat" now learn to print the line
"%d files changed, %d insertions(+), %d deletions(-)" in singular form
whenever applicable. "0 insertions" and "0 deletions" are also omitted
unless they are both zero.
This matches how versions of "diffstat" that are not prehistoric produced
their output, and also makes this line translatable.
[jc: with help from Thomas Dickey in archaeology of "diffstat"]
[jc: squashed Jonathan's updates to illustrations in tutorials and a test]
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
