Allow combined diff to ignore white-spaces

The combined diff --cc output does not honor options to ignore
whitespace changes (-b, -w, and --ignore-space-at-eol).

Correct this by passing diff flags to diff engine, so that combined
diff behaves as normal diff does with spaces, and by coalescing
lines that are removed from both (or more) parents, honoring the
same rule to ignore whitespace changes.

With this change, a conflict-less merge done using a ignore-*
strategy option will not show any conflict if shown in combined-diff
using the same option.

Signed-off-by: Antoine Pelisse <apelisse@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
archive-zip: use deflateInit2() to ask for raw compressed data

We use the function git_deflate_init() -- which wraps the zlib function
deflateInit() -- to initialize compression of ZIP file entries.  This
results in compressed data prefixed with a two-bytes long header and
followed by a four-bytes trailer.  ZIP file entries consist of ZIP
headers and raw compressed data instead, so we remove the zlib wrapper
before writing the result.

We can ask zlib for the the raw compressed data without the unwanted
parts in the first place by using deflateInit2() and specifying a
negative number of bits to size the window.  For that purpose, factor
out the function do_git_deflate_init() and add git_deflate_init_raw(),
which wraps it.  Then use the latter in archive-zip.c and get rid of
the code that stripped the zlib header and trailer.

Also rename the helper function zlib_deflate() to zlib_deflate_raw()
to reflect the change.

Thus we avoid generating data that we throw away anyway, the code
becomes shorter and some magic constants are removed.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
git-svn: Support custom tunnel schemes instead of SSH only

This originates from an msysgit pull request, see:

https://github.com/msysgit/git/pull/58

Signed-off-by: Eric Wieser <wieser.eric@gmail.com>
Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Merge branch 'ap/combine-diff-ignore-whitespace'

Teach "diff --cc" output to honor options to ignore various forms
of whitespace changes.

* ap/combine-diff-ignore-whitespace:
  Allow combined diff to ignore white-spaces
Merge branch 'rs/archive-zip-raw-compression'

* rs/archive-zip-raw-compression:
  archive-zip: use deflateInit2() to ask for raw compressed data
Merge branch 'master' of git://git.bogomips.org/git-svn

* 'master' of git://git.bogomips.org/git-svn:
  git-svn: Support custom tunnel schemes instead of SSH only
git-pull doc: fix grammo ("conflicts" is plural)

Signed-off-by: Mihai Capotă <mihai@mihaic.ro>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
git-commit doc: describe use of multiple `-m` options

The text is copied from Documentation/git-tag.txt.

Signed-off-by: Christian Helmuth <christian.helmuth@genode-labs.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
merge-tree: fix typo in merge-tree.c::unresolved

When calculating whether there is a d/f conflict, the calculation of
whether both sides are directories generates an incorrect references
mask because it does not use the loop index to set the correct bit.
Fix this typo.

Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Merge branch 'maint-1.8.1' into maint

* maint-1.8.1:
  merge-tree: fix typo in merge-tree.c::unresolved
  git-commit doc: describe use of multiple `-m` options
  git-pull doc: fix grammo ("conflicts" is plural)
More fixes for 1.8.2.1

Signed-off-by: Junio C Hamano <gitster@pobox.com>
Merge branch 'maint'

* maint:
  More fixes for 1.8.2.1
  merge-tree: fix typo in merge-tree.c::unresolved
  git-commit doc: describe use of multiple `-m` options
  git-pull doc: fix grammo ("conflicts" is plural)