What's cooking (2014/07 #01)

[git.git] / whats-cooking.txt

To: git@vger.kernel.org
Bcc: lwn@lwn.net
Subject: What's cooking in git.git (Jul 2014, #01; Tue, 8)
X-master-at: 72c779457cd72928e36f2bc43c3ff7f3ae7b77c3
X-next-at: 35b839c24c6ee47bec1710eabfa8653925462638

What's cooking in git.git (Jul 2014, #01; Tue, 8)
--------------------------------------------------

Here are the topics that have been cooking.  Commits prefixed with
'-' are only in 'pu' (proposed updates) while commits prefixed with
'+' are in 'next'.

You can find the changes described here in the integration branches
of the repositories listed at

    http://git-blame.blogspot.com/p/git-public-repositories.html

--------------------------------------------------
[Graduated to "master"]

* bc/fix-rebase-merge-skip (2014-06-16) 1 commit
  (merged to 'next' on 2014-06-20 at 01f81f5)
 + rebase--merge: fix --skip with two conflicts in a row

 "git rebase --skip" did not work well when it stopped due to a
 conflict twice in a row.


* dt/refs-check-refname-component-sse (2014-06-18) 1 commit
  (merged to 'next' on 2014-06-20 at d286027)
 + refs.c: SSE2 optimizations for check_refname_component

 Further micro-optimization of a leaf-function.


* jk/commit-buffer-length (2014-06-13) 18 commits
  (merged to 'next' on 2014-06-16 at b2d2d7b)
 + reuse cached commit buffer when parsing signatures
 + commit: record buffer length in cache
 + commit: convert commit->buffer to a slab
 + commit-slab: provide a static initializer
 + use get_commit_buffer everywhere
 + convert logmsg_reencode to get_commit_buffer
 + use get_commit_buffer to avoid duplicate code
 + use get_cached_commit_buffer where appropriate
 + provide helpers to access the commit buffer
 + provide a helper to set the commit buffer
 + provide a helper to free commit buffer
 + sequencer: use logmsg_reencode in get_message
 + logmsg_reencode: return const buffer
 + do not create "struct commit" with xcalloc
 + commit: push commit_index update into alloc_commit_node
 + alloc: include any-object allocations in alloc_report
 + replace dangerous uses of strbuf_attach
 + commit_tree: take a pointer/len pair rather than a const strbuf

 Move "commit->buffer" out of the in-core commit object and keep
 track of their lengths.  Use this to optimize the code paths to
 validate GPG signatures in commit objects.


* ye/http-extract-charset (2014-06-17) 1 commit
  (merged to 'next' on 2014-06-20 at 9492bae)
 + http: fix charset detection of extract_content_type()

--------------------------------------------------
[New Topics]

* cc/replace-edit (2014-06-25) 3 commits
 - replace: use argv_array in export_object
 - avoid double close of descriptors handed to run_command
 - replace: replace spaces with tabs in indentation
 (this branch is used by jk/replace-edit-raw.)

 Will merge to 'next'.


* ep/submodule-code-cleanup (2014-06-30) 1 commit
 - submodule.c: use the ARRAY_SIZE macro

 Will merge to 'next'.


* jk/replace-edit-raw (2014-06-25) 1 commit
 - replace: add a --raw mode for --edit
 (this branch uses cc/replace-edit.)

 Will merge to 'next'.


* jk/strip-suffix (2014-06-30) 9 commits
 - prepare_packed_git_one: refactor duplicate-pack check
 - verify-pack: use strbuf_strip_suffix
 - strbuf: implement strbuf_strip_suffix
 - index-pack: use strip_suffix to avoid magic numbers
 - use strip_suffix instead of ends_with in simple cases
 - replace has_extension with ends_with
 - implement ends_with via strip_suffix
 - add strip_suffix function
 - sha1_file: replace PATH_MAX buffer with strbuf in prepare_packed_git_one()

 Will merge to 'next'.


* jk/tag-contains (2014-06-30) 8 commits
 - perf: add tests for tag --contains
 - tag: use commit_contains
 - commit: provide a fast multi-tip contains function
 - string-list: add pos to iterator callback
 - add functions for memory-efficient bitmaps
 - paint_down_to_common: use prio_queue
 - tag: factor out decision to stream tags
 - tag: allow --sort with -n

 Expecting a reroll.


* mg/fix-log-mergetag-color (2014-06-30) 1 commit
 - log: correctly identify mergetag signature verification status

 Will merge to 'next'.


* mk/merge-incomplete-files (2014-06-30) 2 commits
 - git-merge-file: do not add LF at EOF while applying unrelated change
 - t6023-merge-file.sh: fix and mark as broken invalid tests

 Will merge to 'next'.


* rs/status-code-clean-up (2014-06-29) 2 commits
  (merged to 'next' on 2014-07-08 at db67965)
 + wt-status: simplify building of summary limit argument
 + wt-status: use argv_array for environment

 Will merge to 'master'.


* tb/crlf-tests (2014-07-08) 2 commits
  (merged to 'next' on 2014-07-08 at 40764b7)
 + t0027: combinations of core.autocrlf, core.eol and text
 + t0025: rename the test files

 Will merge to 'master'.


* ak/profile-feedback-build (2014-07-08) 4 commits
 - Fix profile feedback with -jN and add profile-fast
 - Run the perf test suite for profile feedback too
 - Don't define away __attribute__ on gcc
 - Use BASIC_FLAGS for profile feedback

 Will merge to 'next'.


* cb/filter-branch-prune-empty-degenerate-merges (2014-07-01) 1 commit
 - filter-branch: eliminate duplicate mapped parents

 Will merge to 'next'.


* cc/for-each-mergetag (2014-07-07) 1 commit
 - commit: add for_each_mergetag()
 (this branch is used by cc/replace-graft.)

 Will merge to 'next'.


* dt/cache-tree-repair (2014-07-08) 4 commits
 - cache-tree: write updated cache-tree after commit
 - cache-tree: subdirectory tests
 - test-dump-cache-tree: invalid trees are not errors
 - cache-tree: create/update cache-tree on checkout

 Reviews seen; waiting for a response.


* jl/test-lint-scripts (2014-07-07) 3 commits
 - DONTMERGE: missing sign-off
 - t/Makefile: always test all lint targets when running tests
 - t/Makefile: check helper scripts for non-portable shell commands too


* kb/hashmap-updates (2014-07-07) 4 commits
 - hashmap: add string interning API
 - hashmap: add simplified hashmap_get_from_hash() API
 - hashmap: improve struct hashmap member documentation
 - hashmap: factor out getting a hash code from a SHA1

 Reviews sent; waiting for a response.


* kb/path-max-must-go (2014-07-07) 2 commits
  (merged to 'next' on 2014-07-08 at 4d41c18)
 + dir: remove PATH_MAX limitation
 + symlinks: remove PATH_MAX limitation

 Will merge to 'master'.


* rs/fix-alt-odb-path-comparison (2014-07-01) 1 commit
  (merged to 'next' on 2014-07-08 at f9c69e5)
 + sha1_file: avoid overrunning alternate object base string

 Will merge to 'master'.


* rs/simplify-archive-tests (2014-07-07) 1 commit
  (merged to 'next' on 2014-07-08 at c46cfac)
 + t5000, t5003: simplify commit

 Will merge to 'master'.


* zk/log-graph-showsig (2014-07-08) 1 commit
 - log: fix indentation for --graph --show-signature

 The "--show-signature" option did not pay much attention to
 "--graph".

 Will merge to 'next'.

--------------------------------------------------
[Stalled]

* ab/add-interactive-show-diff-func-name (2014-05-12) 2 commits
 - SQUASH??? git-add--interactive: Preserve diff heading when splitting hunks
 - git-add--interactive: Preserve diff heading when splitting hunks

 Waiting for a reroll.


* jn/gitweb-utf8-in-links (2014-05-27) 1 commit
 - gitweb: Harden UTF-8 handling in generated links

 $gmane/250758?


* rh/prompt-tests (2014-06-05) 11 commits
 - t9904: new __git_ps1 tests for Zsh
 - test-lib: make it possible to override how test code is eval'd
 - lib-prompt-tests.sh: add variable for string that encodes percent in PS1
 - lib-prompt-tests.sh: put all tests inside a function
 - t9903: move prompt tests to a new lib-prompt-tests.sh file
 - t9903: move PS1 color code variable definitions to lib-bash.sh
 - t9903: include "Bash" in test names via new $shellname var
 - t9903: run pc mode tests again with PS1 expansion disabled
 - t9903: move test name prefix to a separate variable
 - t9903: put the Bash pc mode prompt test cases in a function
 - t9903: remove Zsh test from the suite of Bash prompt tests

 Expecting a reroll to limit the damage to test_eval_; also reported
 to be broken with older zsh that are still in the field ($gmane/251231).


* ss/userdiff-update-csharp-java (2014-06-02) 2 commits
 - userdiff: support Java try keyword
 - userdiff: support C# async methods and correct C# keywords

 Reviews sent; waiting for a response.


* cc/interpret-trailers (2014-05-28) 11 commits
 - Documentation: add documentation for 'git interpret-trailers'
 - trailer: add tests for commands in config file
 - trailer: execute command from 'trailer.<name>.command'
 - trailer: add tests for "git interpret-trailers"
 - trailer: add interpret-trailers command
 - trailer: put all the processing together and print
 - trailer: parse trailers from file or stdin
 - trailer: process command line trailer arguments
 - trailer: read and process config information
 - trailer: process trailers from input message and arguments
 - trailer: add data structures and basic functions

 A new filter to programatically edit the tail end of the commit log
 messages.

 What is the status of this one?  I think I saw reviews by Michael
 but after that I do not recall seeing any updates.


* mh/lockfile (2014-04-15) 25 commits
 - trim_last_path_elm(): replace last_path_elm()
 - resolve_symlink(): take a strbuf parameter
 - resolve_symlink(): use a strbuf for internal scratch space
 - change lock_file::filename into a strbuf
 - commit_lock_file(): use a strbuf to manage temporary space
 - try_merge_strategy(): use a statically-allocated lock_file object
 - try_merge_strategy(): remove redundant lock_file allocation
 - struct lock_file: declare some fields volatile
 - lockfile: avoid transitory invalid states
 - commit_lock_file(): die() if called for unlocked lockfile object
 - commit_lock_file(): inline temporary variable
 - remove_lock_file(): call rollback_lock_file()
 - lock_file(): exit early if lockfile cannot be opened
 - write_packed_entry_fn(): convert cb_data into a (const int *)
 - prepare_index(): declare return value to be (const char *)
 - delete_ref_loose(): don't muck around in the lock_file's filename
 - cache.h: define constants LOCK_SUFFIX and LOCK_SUFFIX_LEN
 - lockfile.c: document the various states of lock_file objects
 - lock_file(): always add lock_file object to lock_file_list
 - hold_lock_file_for_append(): release lock on errors
 - lockfile: unlock file if lockfile permissions cannot be adjusted
 - rollback_lock_file(): set fd to -1
 - rollback_lock_file(): do not clear filename redundantly
 - api-lockfile: expand the documentation
 - unable_to_lock_die(): rename function from unable_to_lock_index_die()

 Refactor and fix corner-case bugs in the lockfile API, all looked
 sensible.

 Expecting a reroll.


* bg/rebase-off-of-previous-branch (2014-04-16) 1 commit
 - git-rebase: print name of rev when using shorthand

 Teach "git rebase -" to report the concrete name of the branch
 (i.e. the previous one).

 But it stops short and does not do the same for "git rebase @{-1}".
 Expecting a reroll.


* tr/merge-recursive-index-only (2014-02-05) 3 commits
 - merge-recursive: -Xindex-only to leave worktree unchanged
 - merge-recursive: internal flag to avoid touching the worktree
 - merge-recursive: remove dead conditional in update_stages()
 (this branch is used by tr/remerge-diff.)


* tr/remerge-diff (2014-02-26) 5 commits
 . log --remerge-diff: show what the conflict resolution changed
 . name-hash: allow dir hashing even when !ignore_case
 . merge-recursive: allow storing conflict hunks in index
 . revision: fold all merge diff variants into an enum merge_diff_mode
 . combine-diff: do not pass revs->dense_combined_merges redundantly
 (this branch uses tr/merge-recursive-index-only.)

 "log -p" output learns a new way to let users inspect a merge
 commit by showing the differences between the automerged result
 with conflicts the person who recorded the merge would have seen
 and the final conflict resolution that was recorded in the merge.

 Needs to be rebased, now kb/fast-hashmap topic is in.


* jk/makefile (2014-02-05) 16 commits
 . FIXUP
 . move LESS/LV pager environment to Makefile
 . Makefile: teach scripts to include make variables
 . FIXUP
 . Makefile: auto-build C strings from make variables
 . Makefile: drop *_SQ variables
 . FIXUP
 . Makefile: add c-quote helper function
 . Makefile: introduce sq function for shell-quoting
 . Makefile: always create files via make-var
 . Makefile: store GIT-* sentinel files in MAKE/
 . Makefile: prefer printf to echo for GIT-*
 . Makefile: use tempfile/mv strategy for GIT-*
 . Makefile: introduce make-var helper function
 . Makefile: fix git-instaweb dependency on gitweb
 . Makefile: drop USE_GETTEXT_SCHEME from GIT-CFLAGS

 Simplify the Makefile rules and macros that exist primarily for
 quoting purposes, and make it easier to robustly express the
 dependency rules.

 Expecting a reroll.


* po/everyday-doc (2014-01-27) 1 commit
 - Make 'git help everyday' work

 This may make the said command to emit something, but the source is
 not meant to be formatted into a manual pages to begin with, and
 also its contents are a bit stale.  It may be a good first step in
 the right direction, but needs more work to at least get the
 mark-up right before public consumption.

 Will hold.


* jk/branch-at-publish-rebased (2014-01-17) 5 commits
 . t1507 (rev-parse-upstream): fix typo in test title
 . implement @{publish} shorthand
 . branch_get: provide per-branch pushremote pointers
 . branch_get: return early on error
 . sha1_name: refactor upstream_mark

 Give an easier access to the tracking branches from "other" side in
 a triangular workflow by introducing B@{publish} that works in a
 similar way to how B@{upstream} does.

 Meant to be used as a basis for whatever Ram wants to build on.

 Ejected from 'pu' to unclutter.


* fc/publish-vs-upstream (2014-04-21) 8 commits
 . sha1_name: add support for @{publish} marks
 . sha1_name: simplify track finding
 . sha1_name: cleanup interpret_branch_name()
 . branch: display publish branch
 . push: add --set-publish option
 . branch: add --set-publish-to option
 . Add concept of 'publish' branch
 . t5516 (fetch-push): fix test restoration

 Add branch@{publish}; it seems that this is somewhat different from
 Ram and Peff started working on.  At least the tip needs to be
 rerolled not to squat on @{p} which @{push} and possibly @{pull}
 may want to share.


* rb/merge-prepare-commit-msg-hook (2014-01-10) 4 commits
 - merge: drop unused arg from abort_commit method signature
 - merge: make prepare_to_commit responsible for write_merge_state
 - t7505: ensure cleanup after hook blocks merge
 - t7505: add missing &&

 Expose more merge states (e.g. $GIT_DIR/MERGE_MODE) to hooks that
 run during "git merge".  The log message stresses too much on one
 hook, prepare-commit-msg, but it would equally apply to other hooks
 like post-merge, I think.

 Waiting for a reroll.


* jc/graph-post-root-gap (2013-12-30) 3 commits
 - WIP: document what we want at the end
 - graph: remove unused code a bit
 - graph: stuff the current commit into graph->columns[]

 This was primarily a RFH ($gmane/239580).


* np/pack-v4 (2013-09-18) 90 commits
 . packv4-parse.c: add tree offset caching
 . t1050: replace one instance of show-index with verify-pack
 . index-pack, pack-objects: allow creating .idx v2 with .pack v4
 . unpack-objects: decode v4 trees
 . unpack-objects: allow to save processed bytes to a buffer
 - ...

 Nico and Duy advancing the eternal vaporware pack-v4.  This is here
 primarily for wider distribution of the preview edition.

 Needs to be rebased, now the pack-bitmap series is in.


* tg/perf-lib-test-perf-cleanup (2013-09-19) 2 commits
 - perf-lib: add test_perf_cleanup target
 - perf-lib: split starting the test from the execution

 Add test_perf_cleanup shell function to the perf suite, that allows
 the script writers to define a test with a clean-up action.

 Will hold.


* jc/show-branch (2014-03-24) 5 commits
 - show-branch: use commit slab to represent bitflags of arbitrary width
 - show-branch.c: remove "all_mask"
 - show-branch.c: abstract out "flags" operation
 - show-branch.c: lift all_mask/all_revs to a global static
 - show-branch.c: update comment style

 Waiting for the final step to lift the hard-limit before sending it out.


* jh/submodule-tests (2014-04-17) 1 commit
 - t7410: 210 tests for various 'git submodule update' scenarios

 More or less abandoned.  Will drop.


* nd/multiple-work-trees (2014-03-25) 28 commits
 . count-objects: report unused files in $GIT_DIR/repos/...
 . gc: support prune --repos
 . gc: style change -- no SP before closing bracket
 . prune: strategies for linked checkouts
 . checkout: detach if the branch is already checked out elsewhere
 . checkout: clean up half-prepared directories in --to mode
 . checkout: support checking out into a new working directory
 . use new wrapper write_file() for simple file writing
 . wrapper.c: wrapper to open a file, fprintf then close
 . setup.c: support multi-checkout repo setup
 . setup.c: detect $GIT_COMMON_DIR check_repository_format_gently()
 . setup.c: convert check_repository_format_gently to use strbuf
 . setup.c: detect $GIT_COMMON_DIR in is_git_directory()
 . setup.c: convert is_git_directory() to use strbuf
 . git-stash: avoid hardcoding $GIT_DIR/logs/....
 . *.sh: avoid hardcoding $GIT_DIR/hooks/...
 . git-sh-setup.sh: use rev-parse --git-path to get $GIT_DIR/objects
 . $GIT_COMMON_DIR: a new environment variable
 . commit: use SEQ_DIR instead of hardcoding "sequencer"
 . fast-import: use git_path() for accessing .git dir instead of get_git_dir()
 . reflog: avoid constructing .lock path with git_path
 . *.sh: respect $GIT_INDEX_FILE
 . git_path(): be aware of file relocation in $GIT_DIR
 . path.c: group git_path(), git_pathdup() and strbuf_git_path() together
 . path.c: rename vsnpath() to do_git_path()
 . git_snpath(): retire and replace with strbuf_git_path()
 . path.c: make get_pathname() call sites return const char *
 . path.c: make get_pathname() return strbuf instead of static buffer

 A replacement for contrib/workdir/git-new-workdir that does not
 rely on symbolic links and make sharing of objects and refs safer
 by making the borrowee and borrowers aware of each other.

--------------------------------------------------
[Cooking]

* cc/replace-graft (2014-07-07) 9 commits
 - replace: add test for --graft with a mergetag
 - replace: check mergetags when using --graft
 - replace: add test for --graft with signed commit
 - replace: remove signature when using --graft
 - contrib: add convert-grafts-to-replace-refs.sh
 - Documentation: replace: add --graft option
 - replace: add test for --graft
 - replace: add --graft option
 - replace: cleanup redirection style in tests
 (this branch uses cc/for-each-mergetag.)

 "git replace" learned a "--graft" option to rewrite parents of a
 commit.


* jc/fix-clone-single-starting-at-a-tag (2014-06-23) 1 commit
  (merged to 'next' on 2014-07-02 at cc0c4b1)
 + builtin/clone.c: detect a clone starting at a tag correctly

 Will merge to 'master'.


* mg/verify-commit (2014-06-23) 5 commits
  (merged to 'next' on 2014-07-02 at 6d77bcf)
 + t7510: test verify-commit
 + t7510: exit for loop with test result
 + verify-commit: scriptable commit signature verification
 + gpg-interface: provide access to the payload
 + gpg-interface: provide clear helper for struct signature_check

 Add 'verify-commit' to be used in a way similar to 'verify-tag' is
 used.  Further work on verifying the mergetags might be needed.

 Will merge to 'master'.


* dt/refs-check-refname-component-sse-fix (2014-07-08) 2 commits
  (merged to 'next' on 2014-07-08 at 35b839c)
 + refs: fix valgrind suppression file
 + refs.c: handle REFNAME_REFSPEC_PATTERN at end of page

 Fixes to a topic that is already in 'master'.

 Will merge to 'master'.


* jk/skip-prefix (2014-06-20) 18 commits
  (merged to 'next' on 2014-06-23 at cd387a6)
 + http-push: refactor parsing of remote object names
 + imap-send: use skip_prefix instead of using magic numbers
 + use skip_prefix to avoid repeated calculations
 + git: avoid magic number with skip_prefix
 + fetch-pack: refactor parsing in get_ack
 + fast-import: refactor parsing of spaces
 + stat_opt: check extra strlen call
 + daemon: use skip_prefix to avoid magic numbers
 + fast-import: use skip_prefix for parsing input
 + use skip_prefix to avoid repeating strings
 + use skip_prefix to avoid magic numbers
 + transport-helper: avoid reading past end-of-string
 + fast-import: fix read of uninitialized argv memory
 + apply: use skip_prefix instead of raw addition
 + refactor skip_prefix to return a boolean
 + avoid using skip_prefix as a boolean
 + daemon: mark some strings as const
 + parse_diff_color_slot: drop ofs parameter

 Will merge to 'master'.


* jk/xstrfmt (2014-06-25) 11 commits
  (merged to 'next' on 2014-06-25 at 5031d4e)
 + setup_git_env(): introduce git_path_from_env() helper
  (merged to 'next' on 2014-06-23 at 64f2558)
 + unique_path: fix unlikely heap overflow
 + walker_fetch: fix minor memory leak
 + merge: use argv_array when spawning merge strategy
 + sequencer: use argv_array_pushf
 + setup_git_env: use git_pathdup instead of xmalloc + sprintf
 + use xstrfmt to replace xmalloc + strcpy/strcat
 + use xstrfmt to replace xmalloc + sprintf
 + use xstrdup instead of xmalloc + strcpy
 + use xstrfmt in favor of manual size calculations
 + strbuf: add xstrfmt helper

 Will merge to 'master'.


* kb/perf-trace (2014-07-07) 17 commits
 - progress: simplify performance measurement by using getnanotime()
 - wt-status: simplify performance measurement by using getnanotime()
 - git: add performance tracing for git's main() function to debug scripts
 - trace: add trace_performance facility to debug performance issues
 - trace: add high resolution timer function to debug performance issues
 - trace: add 'file:line' to all trace output
 - trace: move code around, in preparation to file:line output
 - trace: add current timestamp to all trace output
 - trace: disable additional trace output for unit tests
 - trace: add infrastructure to augment trace output with additional info
 - sha1_file: change GIT_TRACE_PACK_ACCESS logging to use trace API
 - Documentation/git.txt: improve documentation of 'GIT_TRACE*' variables
 - trace.h: suppress some sparse warnings and errors
 - trace: improve trace performance
 - trace: remove redundant printf format attribute
 - trace: consistently name the format parameter
 - trace: move trace declarations from cache.h to new trace.h

 Will merge to 'next'.


* hv/submodule-config (2014-06-30) 4 commits
 - do not die on error of parsing fetchrecursesubmodules option
 - use new config API for worktree configurations of submodules
 - extract functions for submodule config set and lookup
 - implement submodule config cache for lookup of submodule names


* jl/submodule-tests (2014-07-07) 14 commits
 - revert: add t3513 for submodule updates
 - stash: add t3906 for submodule updates
 - am: add t4255 for submodule updates
 - cherry-pick: add t3512 for submodule updates
 - pull: add t5572 for submodule updates
 - rebase: add t3426 for submodule updates
 - merge: add t7613 for submodule updates
 - bisect: add t6041 for submodule updates
 - reset: add t7112 for submodule updates
 - read-tree: add t1013 for submodule updates
 - apply: add t4137 for submodule updates
 - checkout: call the new submodule update test framework
 - submodules: add the lib-submodule-update.sh test library
 - test-lib: add test_dir_is_empty()

 Will merge to 'next'.


* po/error-message-style (2014-06-16) 1 commit
 - doc: state coding guideline for error message punctuation

 Expecting a reroll.


* rs/ref-transaction (2014-06-20) 48 commits
 - refs.c: make write_ref_sha1 static
 - fetch.c: change s_update_ref to use a ref transaction
 - refs.c: propagate any errno==ENOTDIR from _commit back to the callers
 - refs.c: pass a skip list to name_conflict_fn
 - refs.c: call lock_ref_sha1_basic directly from commit
 - refs.c: move the check for valid refname to lock_ref_sha1_basic
 - refs.c: pass NULL as *flags to read_ref_full
 - refs.c: pass the ref log message to _create/delete/update instead of _commit
 - refs.c: add an err argument to delete_ref_loose
 - refs.c: make delete_ref use a transaction
 - refs.c: make prune_ref use a transaction to delete the ref
 - refs.c: remove lock_ref_sha1
 - refs.c: remove the update_ref_write function
 - refs.c: remove the update_ref_lock function
 - refs.c: make lock_ref_sha1 static
 - walker.c: use ref transaction for ref updates
 - fast-import.c: use a ref transaction when dumping tags
 - receive-pack.c: use a reference transaction for updating the refs
 - refs.c: change update_ref to use a transaction
 - branch.c: use ref transaction for all ref updates
 - fast-import.c: change update_branch to use ref transactions
 - sequencer.c: use ref transactions for all ref updates
 - commit.c: use ref transactions for updates
 - replace.c: use the ref transaction functions for updates
 - tag.c: use ref transactions when doing updates
 - refs.c: add transaction.status and track OPEN/CLOSED/ERROR
 - refs.c: make ref_transaction_begin take an err argument
 - refs.c: update ref_transaction_delete to check for error and return status
 - refs.c: change ref_transaction_create to do error checking and return status
 - refs.c: change ref_transaction_update() to do error checking and return status
 - refs.c: remove the onerr argument to ref_transaction_commit
 - update-ref: use err argument to get error from ref_transaction_commit
 - refs.c: make update_ref_write update a strbuf on failure
 - refs.c: make ref_update_reject_duplicates take a strbuf argument for errors
 - refs.c: log_ref_write should try to return meaningful errno
 - refs.c: make resolve_ref_unsafe set errno to something meaningful on error
 - refs.c: commit_packed_refs to return a meaningful errno on failure
 - refs.c: make remove_empty_directories always set errno to something sane
 - refs.c: verify_lock should set errno to something meaningful
 - refs.c: make sure log_ref_setup returns a meaningful errno
 - refs.c: add an err argument to repack_without_refs
 - lockfile.c: make lock_file return a meaningful errno on failurei
 - lockfile.c: add a new public function unable_to_lock_message
 - refs.c: add a strbuf argument to ref_transaction_commit for error logging
 - refs.c: allow passing NULL to ref_transaction_free
 - refs.c: constify the sha arguments for ref_transaction_create|delete|update
 - refs.c: ref_transaction_commit should not free the transaction
 - refs.c: remove ref_transaction_rollback

 Portability workaround may be needed on top ($gmane/252496).
 Updates in response to review comments from Michael ($gmane/253033)
 may be needed for later parts, but the earlier parts look ready
 for 'next'.


* jk/pretty-G-format-fixes (2014-06-25) 6 commits
  (merged to 'next' on 2014-06-26 at 7138407)
 + move "%G" format test from t7510 to t6006
  (merged to 'next' on 2014-06-20 at f504bbc)
 + pretty: avoid reading past end-of-string with "%G"
 + t7510: check %G* pretty-format output
 + t7510: test a commit signed by an unknown key
 + t7510: use consistent &&-chains in loop
 + t7510: stop referring to master in later tests

 Will merge to 'master'.


* nd/split-index (2014-06-13) 32 commits
  (merged to 'next' on 2014-07-08 at 49325ef)
 + t1700: new tests for split-index mode
 + t2104: make sure split index mode is off for the version test
 + read-cache: force split index mode with GIT_TEST_SPLIT_INDEX
 + read-tree: note about dropping split-index mode or index version
 + read-tree: force split-index mode off on --index-output
 + rev-parse: add --shared-index-path to get shared index path
 + update-index --split-index: do not split if $GIT_DIR is read only
 + update-index: new options to enable/disable split index mode
 + split-index: strip pathname of on-disk replaced entries
 + split-index: do not invalidate cache-tree at read time
 + split-index: the reading part
 + split-index: the writing part
 + read-cache: mark updated entries for split index
 + read-cache: save deleted entries in split index
 + read-cache: mark new entries for split index
 + read-cache: split-index mode
 + read-cache: save index SHA-1 after reading
 + entry.c: update cache_changed if refresh_cache is set in checkout_entry()
 + cache-tree: mark istate->cache_changed on prime_cache_tree()
 + cache-tree: mark istate->cache_changed on cache tree update
 + cache-tree: mark istate->cache_changed on cache tree invalidation
 + unpack-trees: be specific what part of the index has changed
 + resolve-undo: be specific what part of the index has changed
 + update-index: be specific what part of the index has changed
 + read-cache: be specific what part of the index has changed
 + read-cache: be strict about "changed" in remove_marked_cache_entries()
 + read-cache: store in-memory flags in the first 12 bits of ce_flags
 + read-cache: relocate and unexport commit_locked_index()
 + read-cache: new API write_locked_index instead of write_index/write_cache
 + sequencer: do not update/refresh index if the lock cannot be held
 + ewah: delete unused ewah_read_mmap_native declaration
 + ewah: fix constness of ewah_read_mmap

 An experiment to use two files (the base file and incremental
 changes relative to it) to represent the index to reduce I/O cost
 of rewriting a large index when only small part of the working tree
 changes.

 Will merge to 'master'.


* jc/test-lazy-prereq (2014-06-13) 1 commit
 - tests: drop GIT_*_TIMING_TESTS environment variable support

 Test-script clean-up.

 Will hold.


* sk/mingw-unicode-spawn-args (2014-06-16) 6 commits
  (merged to 'next' on 2014-06-30 at c8f79d0)
 + Win32: Unicode arguments (incoming)
 + Win32: Unicode arguments (outgoing)
 + MinGW: disable CRT command line globbing
 + Win32: fix potential multi-threading issue
 + Win32: simplify internal mingw_spawn* APIs
 + Win32: let mingw_execve() return an int
 (this branch uses sk/mingw-main and sk/mingw-uni-console.)

 Will merge to 'master'.


* sk/mingw-dirent (2014-06-09) 5 commits
  (merged to 'next' on 2014-06-30 at ae9e2d6)
 + Win32 dirent: improve dirent implementation
 + Win32 dirent: clarify #include directives
 + Win32 dirent: change FILENAME_MAX to MAX_PATH
 + Win32 dirent: remove unused dirent.d_reclen member
 + Win32 dirent: remove unused dirent.d_ino member

 Will merge to 'master'.


* sk/mingw-main (2014-06-10) 2 commits
  (merged to 'next' on 2014-06-30 at 447cb50)
 + mingw: avoid const warning
 + Win32: move main macro to a function
 (this branch is used by sk/mingw-uni-console and sk/mingw-unicode-spawn-args.)

 Will merge to 'master'.


* sk/mingw-uni-console (2014-06-16) 7 commits
  (merged to 'next' on 2014-06-30 at f4fbc41)
 + Win32: reliably detect console pipe handles
 + Win32: fix broken pipe detection
 + Win32: Thread-safe windows console output
 + Win32: add Unicode conversion functions
 + Win32: warn if the console font doesn't support Unicode
 + Win32: detect console streams more reliably
 + Win32: support Unicode console output
 (this branch is used by sk/mingw-unicode-spawn-args; uses sk/mingw-main.)

 Will merge to 'master'.


* mt/patch-id-stable (2014-06-10) 1 commit
 - patch-id: change default to stable

 Teaches "git patch-id" to compute the patch ID that does not change
 when the files in a single patch is reordered. As this new algorithm
 is backward incompatible, the last bit to flip it to be the default
 is left out of 'master' for now.

 Will hold.