May need further updates to the description to explain what makes
various modes of operation to decide that the request can become a
"no-op".

* so/rebase-doc:
  Documentation/git-rebase.txt: -f forces a rebase that would otherwise be a no-op

* sb/prepare-revision-walk-error-check:
  prepare_revision_walk(): check for return value in all places

* sb/blame-msg-i18n:
  builtin/blame.c: add translation to warning about failed revision walk

* nd/strbuf-utf8-replace:
  utf8.c: fix strbuf_utf8_replace() consuming data beyond input string

* sb/plug-leaks:
  clone.c: don't leak memory in cmd_clone
  remote.c: don't leak the base branch name in format_tracking_info

"git add x" where x that used to be a directory has become a
symbolic link to a directory misbehaved.

* rs/refresh-beyond-symlink:
  read-cache: check for leading symlinks when refreshing index

* la/init-doc:
  Documentation: git-init: flesh out example
  Documentation: git-init: template directory: reword and cross-reference
  Documentation: git-init: reword parenthetical statements
  Documentation: git-init: --separate-git-dir: clarify
  Documentation: git-init: template directory: reword
  Documentation: git-init: list items facelift
  Documentation: git-init: typographical fixes

Teach "git stash list -p" to show the difference between the base
commit version and the working tree version, which is in line with
what "git show" gives.

* jk/stash-list-p:
  stash: default listing to working-tree diff

* mm/log-branch-desc-plug-leak:
  builtin/log.c: fix minor memory leak

"git bundle create" with date-range specification were meant to
exclude tags outside the range

* lf/bundle-exclusion:
  bundle: fix exclusion of annotated tags

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

"git -c section.var command" and "git -c section.var= command"
should pass the configuration differently (the former should be
a boolean true, the latter should be an empty string).

* jk/command-line-config-empty-string:
  config: teach "git -c" to recognize an empty string

* bc/imap-send-doc:
  imap-send doc: omit confusing "to use imap-send" modifier

We have been using NOT_{MINGW,CYGWIN} test prerequisites long
before Peff invented support for negated prerequisites e.g. !MINGW
and we still add more uses of the former.  Convert them to the
latter to avoid confusion.

* jc/not-mingw-cygwin:
  test prerequisites: enumerate with commas
  test prerequisites: eradicate NOT_FOO

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

Reduce the use of fixed sized buffer passed to getcwd() calls
by introducing xgetcwd() helper.

* rs/strbuf-getcwd:
  use strbuf_add_absolute_path() to add absolute paths
  abspath: convert absolute_path() to strbuf
  use xgetcwd() to set $GIT_DIR
  use xgetcwd() to get the current directory or die
  wrapper: add xgetcwd()
  abspath: convert real_path_internal() to strbuf
  abspath: use strbuf_getcwd() to remember original working directory
  setup: convert setup_git_directory_gently_1 et al. to strbuf
  unix-sockets: use strbuf_getcwd()
  strbuf: add strbuf_getcwd()

* ta/pretty-parse-config:
  pretty.c: make git_pretty_formats_config return -1 on git_config_string failure

Implementations of "tar" that do not understand an extended pax
header would extract the contents of it in a regular file; make
sure the permission bits of this file follows the same tar.umask
configuration setting.

* bc/archive-pax-header-mode:
  archive: honor tar.umask even for pax headers

Optimize remotes configuration look-up in a repository with very
many remotes defined.

* pr/remotes-in-hashmap:
  use a hashmap to make remotes faster

"git log --pretty/format=" with an empty format string did not mean
the more obvious "No output whatsoever" but "Use default format",
which was counterintuitive.

* jk/pretty-empty-format:
  pretty: make empty userformats truly empty
  pretty: treat "--format=" as an empty userformat
  revision: drop useless string offset when parsing "--pretty"

Add in-core caching layer to let us avoid reading the same
configuration files number of times.

* ta/config-set:
  test-config: add tests for the config_set API
  add `config_set` API for caching config-like files

* rs/init-no-duplicate-real-path:
  init: avoid superfluous real_path() calls

Start "git config --edit --global" from a skeletal per-user
configuration file contents, instead of a total blank, when the
user does not already have any.  This immediately reduces the need
for a later "Have you forgotten setting core.user?" and we can add
more to the template as we gain more experience.

* mm/config-edit-global:
  commit: advertise config --global --edit on guessed identity
  home_config_paths(): let the caller ignore xdg path
  config --global --edit: create a template file if needed

There are cases where you lock and open to write a file, close it to
show the updated contents to external processes, and then have to
update the file again while still holding the lock, but the lockfile
API lacked support for such an access pattern.

* jc/reopen-lock-file:
  lockfile: allow reopening a closed but still locked file

* git://github.com/git-l10n/git-po:
  po/TEAMS: add new members to German translation team
  l10n: de.po: translate 38 new messages

Signed-off-by: NRalf Thielow <ralf.thielow@gmail.com>

Translate 38 new messages came from git.pot update in fe05e196
(l10n: git.pot: v2.1.0 round 1 (38 new, 9 removed)).
Signed-off-by: NRalf Thielow <ralf.thielow@gmail.com>

Fix (rarely used) "git diff-tree -t" regression in 2.0.

* jk/diff-tree-t-fix:
  intersect_paths: respect mode in git's tree-sort

Reachability bitmaps do not work with shallow operations.
Fixes regression in 2.0.

* jk/pack-shallow-always-without-bitmap:
  pack-objects: turn off bitmaps when we see --shallow lines

Fix profile-feedback build broken in 2.1 for tarball releases.

* jk/fix-profile-feedback-build:
  Makefile: make perf tests optional for profile build

Signed-off-by: NRene Scharfe <l.s.r@web.de>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Move most of the code of absolute_path() into the new function
strbuf_add_absolute_path() and in the process transform it to use
struct strbuf and xgetcwd() instead of a PATH_MAX-sized buffer,
which can be too small on some file systems.
Signed-off-by: NRene Scharfe <l.s.r@web.de>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Instead of dying of a segmentation fault if getcwd() returns NULL, use
xgetcwd() to make sure to write a useful error message and then exit
in an orderly fashion.
Suggested-by: NJeff King <peff@peff.net>
Signed-off-by: NRene Scharfe <l.s.r@web.de>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Convert several calls of getcwd() and die() to use xgetcwd() instead.
This way we get rid of fixed-size buffers (which can be too small
depending on the used file system) and gain consistent error messages.
Signed-off-by: NRene Scharfe <l.s.r@web.de>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Add the helper function xgetcwd(), which returns the current directory
or dies.  The returned string has to be free()d after use.
Helped-by: NDuy Nguyen <pclouds@gmail.com>
Signed-off-by: NRene Scharfe <l.s.r@web.de>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Use strbuf instead of fixed-sized buffers in real_path() in order to
avoid the size limitations of the latter.
Signed-off-by: NRene Scharfe <l.s.r@web.de>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Store the original working directory in a strbuf instead of in a
fixed-sized buffer, in order to be able to handle longer paths.
Signed-off-by: NRene Scharfe <l.s.r@web.de>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Convert setup_git_directory_gently_1() and its helper functions
setup_explicit_git_dir(), setup_discovered_git_dir() and
setup_bare_git_dir() to use a struct strbuf to hold the current working
directory.  Replacing the PATH_MAX-sized buffer used before removes a
path length limition on some file systems.  The functions are converted
all in one go because they all read and write the variable cwd.
Signed-off-by: NRene Scharfe <l.s.r@web.de>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

* git://github.com/git-l10n/git-po:
  l10n: de.po: improve message when switching branches
  l10n: de.po: fix typo
  po/TEAMS: Add Catalan team
  l10n: Add Catalan translation
  l10n: fr.po (2257t) update for version 2.1.0
  l10n: sv.po: Update Swedish translation (2257t0f0u)
  l10n: vi.po (2257t): Update translation
  l10n: Updated Bulgarian translation of git (2257t,0f,0u)
  l10n: zh_CN: translations for git v2.1.0-rc0
  l10n: git.pot: v2.1.0 round 1 (38 new, 9 removed)
  l10n: Updated Bulgarian translation of git (2247t,0f,0u)
  l10n: Updated Bulgarian translation of git (2228t,0f,0u)
  l10n: Fix more typos in the Swedish translations

Suggested-by: NStefan Beller <stefanbeller@gmail.com>
Signed-off-by: NRalf Thielow <ralf.thielow@gmail.com>