Merge branch 'cn/cherry-pick-range-docs' into maint

The documentation for "git cherry-pick A B..C" was misleading.

* cn/cherry-pick-range-docs:
  git-cherry-pick.txt: clarify the use of revision range notation
  Documentation: --no-walk is no-op if range is specified
Merge branch 'mm/verify-filename-fix' into maint

"git diff COPYING HEAD:COPYING" gave a nonsense error message that
claimed that the treeish HEAD did not have COPYING in it.

* mm/verify-filename-fix:
  verify_filename(): ask the caller to chose the kind of diagnosis
  sha1_name: do not trigger detailed diagnosis for file arguments
Merge branch 'jk/diff-no-index-pager' into maint

"git diff --no-index" did not work with pagers correctly.

* jk/diff-no-index-pager:
  do not run pager with diff --no-index --quiet
  fix pager.diff with diff --no-index
Merge branch 'hv/submodule-update-nuke-submodules' into maint

"git add" allows adding a regular file to the path where a submodule
used to exist, but "git update-index" did not allow an equivalent
operation to Porcelain writers.

* hv/submodule-update-nuke-submodules:
  update-index: allow overwriting existing submodule index entries
Merge branch 'jc/rev-list-simplify-merges-first-parent' into maint

When "git log" gets "--simplify-merges/by-decoration" together with
"--first-parent", the combination of these options makes the
simplification logic to use in-core commit objects that haven't been
examined for relevance, either producing incorrect result or taking
too long to produce any output.  Teach the simplification logic to
ignore commits that the first-parent traversal logic ignored when
both are in effect to work around the issue.

* jc/rev-list-simplify-merges-first-parent:
  revision: ignore side parents while running simplify-merges
  revision: note the lack of free() in simplify_merges()
  revision: "simplify" options imply topo-order sort
Merge branch 'nd/clone-single-fix' into maint

"git clone --single-branch" to clone a single branch did not limit
the cloning to the specified branch.

* nd/clone-single-fix:
  clone: fix ref selection in --single-branch --branch=xxx
Merge branch 'th/diff-no-index-fixes' into maint

"git diff --no-index" did not correctly handle relative paths and
did not correctly give exit codes when run under "--quiet" option.

* th/diff-no-index-fixes:
  diff-no-index: exit(1) if 'diff --quiet <repo file> <external file>' finds changes
  diff: handle relative paths in no-index
Merge branch 'rj/platform-pread-may-be-thread-unsafe' into maint

On Cygwin, the platform pread(2) is not thread safe, just like our own
compat/ emulation, and cannot be used in the index-pack program.
Makefile variable NO_THREAD_SAFE_PREAD can be defined to avoid use of
this function in a threaded program.

* rj/platform-pread-may-be-thread-unsafe:
  index-pack: Disable threading on cygwin
Merge branch 'jc/maint-blame-unique-abbrev' into maint

"git blame" did not try to make sure that the abbreviated commit
object names in its output are unique.

* jc/maint-blame-unique-abbrev:
  blame: compute abbreviation width that ensures uniqueness
Git 1.7.11.2

Signed-off-by: Junio C Hamano <gitster@pobox.com>
Sync with 1.7.11.2
Reduce draft release notes to 1.7.12

Many "fixes since 1.7.11" items are now in the maintenance track

Signed-off-by: Junio C Hamano <gitster@pobox.com>
t4012: modernize style for quoting

This quoting style is used by all newly added test code.

Signed-off-by: Alexander Strasser <eclipse7@gmx.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
t4012: Unquote git command fragment in test title

The command fragments are quoted nowhere else in title texts of
this file, thus make this one consistent with all other titles.

Signed-off-by: Alexander Strasser <eclipse7@gmx.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
t1512: ignore whitespaces in wc -l output

Some implementations of sed (e.g. MacOS X) have whitespaces in the
output of "wc -l" that reads from the standard input.  Ignore these
whitespaces by not quoting the command substitution to be compared
with the constant "16".

Signed-off-by: Junio C Hamano <gitster@pobox.com>
submodules: don't stumble over symbolic links when cloning recursively

Since 69c3051 (submodules: refactor computation of relative gitdir path)
cloning a submodule recursively fails for nested submodules when a
symbolic link is part of the path to the work tree of the superproject.

This happens when module_clone() tries to find the relative paths between
the work tree and the git dir. When a symbolic link in current $PWD points
to a directory that is at a different level, then determining the number
of "../" needed to traverse to the superproject's work tree leads to a
wrong result.

As there is no portable way to say "pwd -P", use cd_to_toplevel to remove
the link from $PWD, which fixes this problem.

A test for this issue has been added to t7406.

Reported-by: Bob Halley <halley@play-bow.org>
Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
date.c: Fix off by one error in object-header date parsing

It is perfectly OK for a valid decimal integer to begin with '9' but
116eb3a (parse_date(): allow ancient git-timestamp, 2012-02-02) did
not express the range correctly.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
t7003: add test to filter a branch with a commit at epoch

Running filter-branch on a history that has a commit with timestamp
at epoch used to fail, but it should have been fixed.  Add test to
make sure it won't break again.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
git p4: add support for 'p4 move' in P4Submit

For -M option (detectRenames) in P4Submit, use 'p4 move' rather
than 'p4 integrate'.  Check Perforce server for exisitence of
'p4 move' and use it if present, otherwise revert to 'p4 integrate'.

[pw: wildcard-encode src/dest, add/update tests, tweak code]

Signed-off-by: Gary Gibbons <ggibbons@perforce.com>
Signed-off-by: Pete Wyckoff <pw@padd.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
t1512: match the "other" object names

The test creates 16 objects that share the same prefix, and two other
objects that do not.  Tweak the test so that the other two share the
same prefix that is different from the one that is shared by the 16.

Signed-off-by: Junio C Hamano <gitster@pobox.com>