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"git format-patch" learned a new "--range-diff" option to explain
the difference between this version and the previous attempt in
the cover letter (or after the tree-dashes as a comment).
* es/format-patch-rangediff:
format-patch: allow --range-diff to apply to a lone-patch
format-patch: add --creation-factor tweak for --range-diff
format-patch: teach --range-diff to respect -v/--reroll-count
format-patch: extend --range-diff to accept revision range
format-patch: add --range-diff option to embed diff in cover letter
range-diff: relieve callers of low-level configuration burden
range-diff: publish default creation factor
range-diff: respect diff_option.file rather than assuming 'stdout'
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The range-diff coloring is a bit fuzzy when it comes to special lines of
a diff, such as indicating new and old files with +++ and ---, as it
would pickup the first character and interpret it for its coloring, which
seems annoying as in regular diffs, these lines are colored bold via
DIFF_METAINFO.
By indenting these lines by a white space, they will be treated as context
which is much more useful, an example [1] on the range diff series itself:
[...]
+ diff --git a/Documentation/git-range-diff.txt b/Documentation/git-range-diff.txt
+ new file mode 100644
+ --- /dev/null
+ +++ b/Documentation/git-range-diff.txt
+@@
++git-range-diff(1)
[...]
+
diff --git a/Makefile b/Makefile
--- a/Makefile
+++ b/Makefile
[...]
The first lines that introduce the new file for the man page will have the
'+' sign colored and the rest of the line will be bold.
The later lines that indicate a change to the Makefile will be treated as
context both in the outer and inner diff, such that those lines stay
regular color.
[1] ./git-range-diff pr-1/dscho/branch-diff-v3...pr-1/dscho/branch-diff-v4
These tags are found at https://github.com/gitgitgadget/git
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When submitting a revised a patch series, the --range-diff option embeds
a range-diff in the cover letter showing changes since the previous
version of the patch series. The argument to --range-diff is a simple
revision naming the tip of the previous series, which works fine if the
previous and current versions of the patch series share a common base.
However, it fails if the revision ranges of the old and new versions of
the series are disjoint. To address this shortcoming, extend
--range-diff to also accept an explicit revision range for the previous
series. For example:
git format-patch --cover-letter --range-diff=v1~3..v1 -3 v2
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When submitting a revised version of a patch series, it can be helpful
(to reviewers) to include a summary of changes since the previous
attempt in the form of a range-diff, however, doing so involves manually
copy/pasting the diff into the cover letter.
Add a --range-diff option to automate this process. The argument to
--range-diff specifies the tip of the previous attempt against which to
generate the range-diff. For example:
git format-patch --cover-letter --range-diff=v1 -3 v2
(At this stage, the previous attempt and the patch series being
formatted must share a common base, however, a subsequent enhancement
will make it possible to specify an explicit revision range for the
previous attempt.)
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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All lines that use emit_line_0 multiple times per line, are combined
into a single call to emit_line_0, making use of the 'set' argument.
We gain a little efficiency here, as we can omit emission of color and
accompanying reset if 'len == 0'.
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The 'expect'ed outcome has been taken by running the 'range-diff | decode'.
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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These are essentially lifted from https://github.com/trast/tbdiff, with
light touch-ups to account for the command now being named `git
range-diff`.
Apart from renaming `tbdiff` to `range-diff`, only one test case needed
to be adjusted: 11 - 'changed message'.
The underlying reason it had to be adjusted is that diff generation is
sometimes ambiguous. In this case, a comment line and an empty line are
added, but it is ambiguous whether they were added after the existing
empty line, or whether an empty line and the comment line are added
*before* the existing empty line. And apparently xdiff picks a different
option here than Python's difflib.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Junio C Hamano
Stefan Beller
Eric Sunshine
Thomas Rast