Applying a patch not generated by Git in a subdirectory used to
check the whitespace breakage using the attributes for incorrect
paths. Also whitespace checks were performed even for paths
excluded via "git apply --exclude=<path>" mechanism.
* jc/apply-ws-prefix:
apply: omit ws check for excluded paths
apply: hoist use_patch() helper for path exclusion up
apply: use the right attribute for paths in non-Git patches
We parse each patchfile and find the name of the path the patch
applies to, and then use that name to consult the attribute system
to find the whitespace rules to be used, and also the target file
(either in the working tree or in the index) to replay the changes
against.
Unlike a Git-generated patch, a non-Git patch is taken to have the
pathnames relative to the current working directory. The names
found in such a patch are modified by prepending the prefix by the
prefix_patches() helper function introduced in 56185f49 (git-apply:
require -p<n> when working in a subdirectory., 2007-02-19).
However, this prefixing is done after the patch is fully parsed and
affects only what target files are patched. Because the attributes
are checked against the names found in the patch during the parsing,
not against the final pathname, the whitespace check that is done
during parsing ends up using attributes for a wrong path for non-Git
patches.
Fix this by doing the prefix much earlier, immediately after the
header part of each patch is parsed and we learn the name of the
path the patch affects.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The Git CodingGuidelines prefer the $(...) construct for command
substitution instead of using the backquotes `...`.
The backquoted form is the traditional method for command
substitution, and is supported by POSIX. However, all but the
simplest uses become complicated quickly. In particular, embedded
command substitutions and/or the use of double quotes require
careful escaping with the backslash character.
The patch was generated by:
for _f in $(find . -name "*.sh")
do
sed -i 's@`\(.*\)`@$(\1)@g' ${_f}
done
and then carefully proof-read.
Signed-off-by: Elia Pinto <gitter.spiros@gmail.com>
Reviewed-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Breaks in a test assertion's && chain can potentially hide
failures from earlier commands in the chain.
Commands intended to fail should be marked with !, test_must_fail, or
test_might_fail. The examples in this patch do not require that.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
All of these violations are necessary parts of the tests
(which are generally checking the behavior of trailing
whitespace, or contain diff fragments with empty lines).
Our solution is two-fold:
1. Process input with whitespace problems using tr. This
has the added bonus that it becomes very obvious where
the bogus whitespace is intended to go.
2. Move large diff fragments into their own supplemental
files. This gets rid of the whitespace problem, since
supplemental files are not checked, and it also makes
the test script a bit easier to read.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This uses "git-apply --whitespace=strip" to fix whitespace errors that have
crept in to our source files over time. There are a few files that need
to have trailing whitespaces (most notably, test vectors). The results
still passes the test, and build result in Documentation/ area is unchanged.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This enhances the third point in the previous commit. When
applying a non-git patch that begins like this:
--- 2.6.orig/mm/slab.c
+++ 2.6/mm/slab.c
@@ -N,M +L,K @@@
...
and if you are in 'mm' subdirectory, we notice that -p2 is the
right option to use to apply the patch in file slab.c in the
current directory (i.e. mm/slab.c)
The guess function also knows about this pattern, where you
would need to use -p0 if applying from the top-level:
--- mm/slab.c
+++ mm/slab.c
@@ -N,M +L,K @@@
...
Signed-off-by: Junio C Hamano <junkio@cox.net>
Earlier one that tried to be too consistent with GNU patch by
not stripping the leading path when we _know_ we are in a
subdirectory and the patch is relative to the toplevel was a
mistake. This fixes it.
- No change to behaviour when it is run from the toplevel of
the repository.
- When run from a subdirectory to apply a git-generated patch,
it uses the right -p<n> value automatically, with or without
--index nor --cached option.
- When run from a subdirectory to apply a randomly generated
patch, it wants the right -p<n> value to be given by the
user.
The second one is a pure improvement to correct inconsistency
between --index and non --index case, compared with 1.5.0. The
third point could be further improved to guess what the right
value for -p<n> should be by looking at the patch, but should be
a topic of a separate patch.
Signed-off-by: Junio C Hamano <junkio@cox.net>
git-apply running inside a subdirectory, with or without --index,
used to always assume that the patch is formatted in such a way
to apply with -p1 from the toplevel, but it is more useful and
consistent with the use of "GNU patch -p1" if it defaulted to
assume that its input is meant to apply at the level it is
invoked in.
This changes the behaviour. It used to be that the patch
generated this way would apply without any trick:
edit Documentation/Makefile
git diff >patch.file
cd Documentation
git apply ../patch.file
You need to give an explicit -p2 to git-apply now. On the other
hand, if you got a patch from somebody else who did not follow
"patch is to apply from the top with -p1" convention, the input
patch would start with:
diff -u Makefile.old Makefile
--- Makefile.old
+++ Makefile
and in such a case, you can apply it with:
git apply -p0 patch.file
Signed-off-by: Junio C Hamano <junkio@cox.net>
When neither --index nor --cached was used, git-apply did not
try calling setup_git_directory(), which means it did not look
at configuration files at all. This fixes it to call the setup
function but still allow the command to be run in a directory
not controlled by git.
The bug probably meant that 'git apply', not moving up to the
toplevel, did not apply properly formatted diffs from the
toplevel when you are inside a subdirectory, even though 'git
apply --index' would. As a side effect, this patch fixes it as
well.
Signed-off-by: Junio C Hamano <junkio@cox.net>
