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List:       git
Subject:    What's cooking in git.git (Oct 2014, #08; Fri, 31)
From:       Junio C Hamano <gitster () pobox ! com>
Date:       2014-10-31 20:59:20
Message-ID: xmqqzjccrm53.fsf () gitster ! dls ! corp ! google ! com
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Here are the topics that have been cooking.  Commits prefixed with
'-' are only in 'pu' (proposed updates) while commits prefixed with
'+' are in 'next'.

The tip of 'master' was tagged as v2.2.0-rc0; hopefully we can have
a good 2.2 final sometime in the middle of next month.

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/asciidoctor (2014-10-27) 4 commits
  (merged to 'next' on 2014-10-28 at a5b6349)
 + Documentation: remove Asciidoctor linkgit macro
 + Documentation: refactor common operations into variables
  (merged to 'next' on 2014-10-17 at 12ce2e2)
 + Documentation: implement linkgit macro for Asciidoctor
 + Documentation: move some AsciiDoc parameters into variables

 Add machinery to alternatively use AsciiDoctor to format our
 documentation.


* da/difftool (2014-10-28) 2 commits
  (merged to 'next' on 2014-10-28 at 19da3f6)
 + difftool: add support for --trust-exit-code
 + difftool--helper: exit when reading a prompt answer fails

 Allow diff tool backend to stop early by exiting with a non-zero
 status.


* dm/port2zos (2014-10-27) 3 commits
  (merged to 'next' on 2014-10-28 at d03d3ae)
 + compat/bswap.h: detect endianness from XL C compiler macros
 + Makefile: reorder linker flags in the git executable rule
 + git-compat-util.h: support variadic macros with the XL C compiler

 z/OS port.


* jc/push-cert (2014-10-28) 1 commit
  (merged to 'next' on 2014-10-29 at d3ae2e4)
 + receive-pack: avoid minor leak in case start_async() fails

 Leakfix for a topic that is already in 'master'.


* jk/prune-mtime (2014-10-19) 28 commits
  (merged to 'next' on 2014-10-20 at fdd7ff6)
 + drop add_object_array_with_mode
 + revision: remove definition of unused 'add_object' function
 + pack-objects: double-check options before discarding objects
 + repack: pack objects mentioned by the index
 + pack-objects: use argv_array
 + reachable: use revision machinery's --indexed-objects code
 + rev-list: add --indexed-objects option
 + rev-list: document --reflog option
 + t5516: test pushing a tag of an otherwise unreferenced blob
 + traverse_commit_list: support pending blobs/trees with paths
 + make add_object_array_with_context interface more sane
 + write_sha1_file: freshen existing objects
 + pack-objects: match prune logic for discarding objects
 + pack-objects: refactor unpack-unreachable expiration check
 + prune: keep objects reachable from recent objects
 + sha1_file: add for_each iterators for loose and packed objects
 + count-objects: use for_each_loose_file_in_objdir
 + count-objects: do not use xsize_t when counting object size
 + prune-packed: use for_each_loose_file_in_objdir
 + reachable: mark index blobs as SEEN
 + prune: factor out loose-object directory traversal
 + reachable: reuse revision.c "add all reflogs" code
 + reachable: use traverse_commit_list instead of custom walk
 + clean up name allocation in prepare_revision_walk
 + object_array: add a "clear" function
 + object_array: factor out slopbuf-freeing logic
 + isxdigit: cast input to unsigned char
 + foreach_alt_odb: propagate return value from callback

 Tighten the logic to decide that an unreachable cruft is
 sufficiently old by covering corner cases such as an ancient object
 becoming reachable and then going unreachable again, in which case
 its retention period should be prolonged.


* mg/lib-gpg-ro-safety (2014-10-27) 1 commit
  (merged to 'next' on 2014-10-28 at f396990)
 + t/lib-gpg: make gpghome files writable

 In a tarball extract whose files are all read-only, running GPG
 tests would have failed due to unwritable files.


* oc/mergetools-beyondcompare (2014-10-21) 1 commit
  (merged to 'next' on 2014-10-24 at e9278e8)
 + mergetool: rename bc3 to bc

 Take --tool=bc for both BeyondCompare version 3 and 4.


* rb/pack-window-memory-config-doc (2014-10-28) 1 commit
  (merged to 'next' on 2014-10-28 at fc74359)
 + config.txt: pack.windowmemory limit applies per-thread


* rs/child-process-init (2014-10-28) 1 commit
  (merged to 'next' on 2014-10-29 at 21a76a2)
 + api-run-command: add missing list item marker


* rs/grep-color-words (2014-10-28) 1 commit
  (merged to 'next' on 2014-10-28 at 4e6659d)
 + grep: add color.grep.matchcontext and color.grep.matchselected

 Allow painting or not painting (partial) matches in context lines
 when showing "grep -C<num>" output in color.

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

* jc/merge-bases (2014-10-30) 2 commits
 - get_merge_bases(): always clean-up object flags
 - bisect: clean flags after checking merge bases


* jk/cache-tree-protect-from-broken-libgit2 (2014-10-30) 1 commit
 - cache-tree: avoid infinite loop on zero-entry tree

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

* je/quiltimport-no-fuzz (2014-10-21) 2 commits
 - git-quiltimport: flip the default not to allow fuzz
 - git-quiltimport.sh: allow declining fuzz with --exact option

 "quiltimport" drove "git apply" always with -C1 option to reduce
 context of the patch in order to give more chance to somewhat stale
 patches to apply.  Add an "--exact" option to disable, and also
 "-C$n" option to customize this behaviour.  The top patch
 optionally flips the default to "--exact".

 Waiting for an Ack.


* jc/push-cert-hmac-optim (2014-09-25) 2 commits
 - receive-pack: truncate hmac early and convert only necessary bytes
 - sha1_to_hex: split out "hex-format n bytes" helper and use it

 This is "we could do this if we wanted to", not "we measured and it
 improves performance critical codepath".

 Will perhaps drop.


* nd/multiple-work-trees (2014-09-27) 32 commits
 . t2025: add a test to make sure grafts is working from a linked checkout
 . checkout: don't require a work tree when checking out into a new one
 . git_path(): keep "info/sparse-checkout" per work-tree
 . count-objects: report unused files in $GIT_DIR/worktrees/...
 . gc: support prune --worktrees
 . gc: factor out gc.pruneexpire parsing code
 . gc: style change -- no SP before closing parenthesis
 . checkout: clean up half-prepared directories in --to mode
 . checkout: reject if the branch is already checked out elsewhere
 . prune: strategies for linked checkouts
 . 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.

 A few tests need some tweaks for MinGW ($gmane/{257756,257757}).
 Conflicts with rs/ref-transaction so ejected for now, waiting for a
 reroll.


* 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.

 Nobody seems to be jumping up & down requesting this last step,
 which makes the result somewhat backward incompatible.
 Will perhaps drop.


* tr/remerge-diff (2014-09-08) 8 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
 - merge_diff_mode: fold all merge diff variants into an enum
 - combine-diff: do not pass revs->dense_combined_merges redundantly
 - 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()

 "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.

 Waiting for a reroll ($gmane/256591).


* 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

 Kicked back to 'pu' per request ($gmane/255610).


* jt/timer-settime (2014-08-29) 6 commits
 - use timer_settime() for new platforms
 - autoconf: check for timer_settime()
 - autoconf: check for struct itimerspec
 - autoconf: check for struct sigevent
 - autoconf: check for struct timespec
 - autoconf: check for timer_t

 Reviewed, discussed and wanting for a reroll.


* jk/pack-bitmap (2014-08-04) 1 commit
 - pack-bitmap: do not use gcc packed attribute

 Hold, waiting for Karsten's replacement.


* 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?


* 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.


* 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.


* 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).


* 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.

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

* jc/strbuf-add-lines-avoid-sp-ht-sequence (2014-10-27) 1 commit
  (merged to 'next' on 2014-10-29 at 9167582)
 + strbuf_add_commented_lines(): avoid SP-HT sequence in commented lines

 The commented output used to blindly add a SP before the payload
 line, resulting in "# \t<indented text>\n" when the payload began
 with a HT.  Instead, produce "#\t<indented text>\n".

 Will cook in 'next' throughout the remainder of the cycle.


* nd/untracked-cache (2014-10-27) 19 commits
 - t7063: tests for untracked cache
 - update-index: test the system before enabling untracked cache
 - update-index: manually enable or disable untracked cache
 - status: enable untracked cache
 - untracked cache: mark index dirty if untracked cache is updated
 - untracked cache: print stats with $GIT_TRACE_UNTRACKED_STATS
 - untracked cache: avoid racy timestamps
 - read-cache.c: split racy stat test to a separate function
 - untracked cache: invalidate at index addition or removal
 - untracked cache: load from UNTR index extension
 - untracked cache: save to an index extension
 - untracked cache: don't open non-existent .gitignore
 - untracked cache: mark what dirs should be recursed/saved
 - untracked cache: record/validate dir mtime and reuse cached output
 - untracked cache: make a wrapper around {open,read,close}dir()
 - untracked cache: invalidate dirs recursively if .gitignore changes
 - untracked cache: initial untracked cache validation
 - untracked cache: record .gitignore information and dir hierarchy
 - dir.c: optionally compute sha-1 of a .gitignore file


* rs/use-child-process-init-more (2014-10-30) 4 commits
 - bundle: split out ref writing from bundle_create
 - bundle: split out a helper function to compute and write prerequisites
 - bundle: split out a helper function to create pack data
 - use child_process_init() to initialize struct child_process variables

 Will merge to 'next'.


* zk/grep-color-words (2014-10-27) 2 commits
  (merged to 'next' on 2014-10-28 at 4d0457c)
 + Revert "grep: fix match highlighting for combined patterns with context lines"
  (merged to 'next' on 2014-10-24 at 2d2f8f8)
 + grep: fix match highlighting for combined patterns with context lines

 rs/grep-color-words topic solves it in a different way.

 Will discard.


* jc/conflict-hint (2014-10-28) 4 commits
  (merged to 'next' on 2014-10-29 at 693250f)
 + merge & sequencer: turn "Conflicts:" hint into a comment
 + builtin/commit.c: extract ignore_non_trailer() helper function
 + merge & sequencer: unify codepaths that write "Conflicts:" hint
 + builtin/merge.c: drop a parameter that is never used

 Unlike all the other hints given in the commit log editor, the list
 of conflicted paths were appended at the end without commented out.

 Will cook in 'next' throughout the remainder of the cycle.


* jc/diff-b-m (2014-10-23) 1 commit
  (merged to 'next' on 2014-10-28 at 4daedb1)
 + diff -B -M: fix output for "copy and then rewrite" case

 Fix long-standing bug in "diff -B -M" output.

 Will cook in 'next' throughout the remainder of the cycle.


* rs/ref-transaction-reflog (2014-10-22) 15 commits
 - refs.c: allow deleting refs with a broken sha1
 - refs.c: remove lock_any_ref_for_update
 - refs.c: make unlock_ref/close_ref/commit_ref static
 - refs.c: rename log_ref_setup to create_reflog
 - reflog.c: use a reflog transaction when writing during expire
 - refs.c: allow multiple reflog updates during a single transaction
 - refs.c: only write reflog update if msg is non-NULL
 - refs.c: add a flag to allow reflog updates to truncate the log
 - refs.c: add a transaction function to append a reflog entry
 - copy.c: make copy_fd preserve meaningful errno
 - refs.c: add a function to append a reflog entry to a fd
 - refs.c: add a new update_type field to ref_update
 - refs.c: rename the transaction functions
 - refs.c: make ref_transaction_delete a wrapper for ref_transaction_update
 - refs.c make ref_transaction_create a wrapper to ref_transaction_update
 (this branch is used by rs/ref-transaction-rename and rs/ref-transaction-send-pack.)

 Reviews and comments?


* rs/ref-transaction-rename (2014-10-22) 15 commits
 - refs.c: add an err argument to pack_refs
 - refs.c: make lock_packed_refs take an err argument
 - refs.c: make add_packed_ref return an error instead of calling die
 - refs.c: replace the onerr argument in update_ref with a strbuf err
 - refs.c: make the *_packed_refs functions static
 - refs.c: make repack_without_refs static
 - remote.c: use a transaction for deleting refs
 - refs.c: write updates to packed refs when a transaction has more than one ref
 - refs.c: move reflog updates into its own function
 - refs.c: rollback the lockfile before we die() in repack_without_refs
 - refs.c: update rename_ref to use a transaction
 - refs.c: use a stringlist for repack_without_refs
 - refs.c: use packed refs when deleting refs during a transaction
 - refs.c: return error instead of dying when locking fails during transaction
 - refs.c: allow passing raw git_committer_info as email to _update_reflog
 (this branch is used by rs/ref-transaction-send-pack; uses rs/ref-transaction-reflog.)

 Reviews and comments?


* rs/ref-transaction-send-pack (2014-10-22) 8 commits
 - refs.c: add an err argument to create_symref
 - refs.c: add an err argument to create_reflog
 - receive-pack.c: add a receive.preferatomicpush configuration variable
 - t5543-atomic-push.sh: add basic tests for atomic pushes
 - push.c: add an --atomic-push argument
 - receive-pack.c: use a single transaction when atomic-push is negotiated
 - send-pack.c: add an --atomic-push command line argument
 - receive-pack.c: add protocol support to negotiate atomic-push
 (this branch uses rs/ref-transaction-reflog and rs/ref-transaction-rename.)

 Reviews and comments?


* jc/checkout-local-track-report (2014-10-14) 1 commit
  (merged to 'next' on 2014-10-21 at f636a00)
 + checkout: report upstream correctly even with loosely defined branch.*.merge

 The report from "git checkout" on a branch that builds on another
 local branch by setting its branch.*.merge to branch name (not a
 full refname) incorrectly said that the upstream is gone.

 Will cook in 'next' throughout the remainder of the cycle.


* jc/clone-borrow (2014-10-15) 1 commit
  (merged to 'next' on 2014-10-21 at b76ea34)
 + clone: --dissociate option to mark that reference is only temporary

 Allow "git clone --reference" to be used more safely.

 Will cook in 'next' throughout the remainder of the cycle.

--------------------------------------------------
[Discarded]

* 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.


* 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.
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