Here are the topics that have been cooking. Commits prefixed with '-' are only in 'seen' (formerly 'pu'---proposed updates) while commits prefixed with '+' are in 'next'. The ones marked with '.' do not appear in any of the integration branches, but I am still holding onto them. 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'] * al/bisect-first-parent (2020-08-07) 5 commits (merged to 'next' on 2020-08-11 at b232f7ca17) + bisect: combine args passed to find_bisection() + bisect: introduce first-parent flag + cmd_bisect__helper: defer parsing no-checkout flag + rev-list: allow bisect and first-parent flags + t6030: modernize "git bisect run" tests "git bisect" learns the "--first-parent" option to find the first breakage along the first-parent chain. * dd/send-email-config (2020-07-23) 1 commit (merged to 'next' on 2020-08-11 at aaf9f3a301) + git-send-email: die if sendmail.* config is set Stop when "sendmail.*" configuration variables are defined, which could be a mistaken attempt to define "sendemail.*" variables. * es/test-cmp-typocatcher (2020-08-09) 1 commit (merged to 'next' on 2020-08-11 at ee5557b170) + test_cmp: diagnose incorrect arguments Test framework update. * hn/reftable-prep-part-2 (2020-07-27) 3 commits (merged to 'next' on 2020-08-11 at 43ac0bc60a) + Make HEAD a PSEUDOREF rather than PER_WORKTREE. + Modify pseudo refs through ref backend storage + t1400: use git rev-parse for testing PSEUDOREF existence Further preliminary change to refs API. * jc/noop-with-static-inline (2020-08-06) 1 commit (merged to 'next' on 2020-08-11 at 8a63ff648e) + compat-util: type-check parameters of no-op replacement functions A no-op replacement function implemented as a C preprocessor macro does not perform as good a job as one implemented as a "static inline" function in catching errors in parameters; replace the former with the latter in <git-compat-util.h> header. * jk/log-fp-implies-m (2020-07-29) 7 commits (merged to 'next' on 2020-08-03 at 39fefa6b82) + doc/git-log: clarify handling of merge commit diffs + doc/git-log: move "-t" into diff-options list + doc/git-log: drop "-r" diff option + doc/git-log: move "Diff Formatting" from rev-list-options + log: enable "-m" automatically with "--first-parent" + revision: add "--no-diff-merges" option to counteract "-m" + log: drop "--cc implies -m" logic (this branch is used by so/log-diff-merges-opt.) Originally merged to 'next' on 2020-08-01 "git log --first-parent -p" showed patches only for single-parent commits on the first-parent chain; the "--first-parent" option has been made to imply "-m". Use "--no-diff-merges" to restore the previous behaviour to omit patches for merge commits. Will merge to 'master' together with 'so/log-diff-merges-opt' * jk/sideband-error-l10n (2020-08-07) 1 commit (merged to 'next' on 2020-08-11 at 27dbe05a65) + sideband: mark "remote error:" prefix for translation Mark error message for i18n. * ma/stop-progress-null-fix (2020-08-10) 1 commit (merged to 'next' on 2020-08-13 at 8bdec5209f) + progress: don't dereference before checking for NULL NULL dereference fix. * pd/mergetool-nvimdiff (2020-07-29) 2 commits (merged to 'next' on 2020-08-11 at 947ce686d0) + mergetools: add support for nvimdiff (neovim) family + mergetool--lib: improve support for vimdiff-style tool variants The existing backends for "git mergetool" based on variants of vim have been refactored and then support for "nvim" has been added. * ps/ref-transaction-hook (2020-08-11) 2 commits (merged to 'next' on 2020-08-11 at 311c045810) + t1416: avoid hard-coded sha1 ids (merged to 'next' on 2020-08-10 at d8ad7cc8f6) + refs: fix interleaving hook calls with reference-transaction hook The logic to find the ref transaction hook script attempted to cache the path to the found hook without realizing that it needed to keep a copied value, as the API it used returned a transitory buffer space. This has been corrected. to be followed by a removal of the caching feature, which does not seem to help even as a negative cache. * rp/apply-cached-with-i-t-a (2020-08-09) 3 commits (merged to 'next' on 2020-08-11 at c28eaa6a0e) + t4140: test apply with i-t-a paths + apply: make i-t-a entries never match worktree + apply: allow "new file" patches on i-t-a entries Recent versions of "git diff-files" shows a diff between the index and the working tree for "intent-to-add" paths as a "new file" patch; "git apply --cached" should be able to take "git diff-files" and should act as an equivalent to "git add" for the path, but the command failed to do so for such a path. * so/log-diff-merges-opt (2020-08-11) 3 commits (merged to 'next' on 2020-08-11 at 99e070bdca) + t/t4013: add test for --diff-merges=off + doc/git-log: describe --diff-merges=off + revision: change "--diff-merges" option to require parameter (this branch uses jk/log-fp-implies-m.) Earlier, to countermand the implicit "-m" option when the "--first-parent" option is used with "git log", we added the "--[no-]diff-merges" option in the jk/log-fp-implies-m topic. To leave the door open to allow the "--diff-merges" option to take values that instructs how patches for merge commits should be computed (e.g. "cc"? "-p against first parent?"), redefine "--diff-merges" to take non-optional value, and implement "off" that means the same thing as "--no-diff-merges". Will merge to 'master' together with 'jk/lo-implies-m'. -------------------------------------------------- [New Topics] * bc/sha-256-doc-updates (2020-08-13) 2 commits (merged to 'next' on 2020-08-17 at 7154a0ce3c) + docs: fix step in transition plan + docs: document SHA-256 pack and indices Further update of docs to adjust to the recent SHA-256 work. Will merge to 'master'. * ma/sha-256-docs (2020-08-17) 4 commits (merged to 'next' on 2020-08-17 at 6861142a20) + shallow.txt: document SHA-256 shallow format + protocol-capabilities.txt: clarify "allow-x-sha1-in-want" re SHA-256 + index-format.txt: document SHA-256 index format + http-protocol.txt: document SHA-256 "want"/"have" format Further update of docs to adjust to the recent SHA-256 work. Will merge to 'master'. * dd/diff-customize-index-line-abbrev (2020-08-13) 2 commits - diff: index-line: respect --abbrev in object's name - revision: differentiate if --no-abbrev asked explicitly The output from the "diff" family of the commands had abbreviated object names of blobs involved in the patch, but its length was not affected by the --abbrev option. Now it is. The first patch is unneeded. * ds/sha256-leftover-bits (2020-08-17) 3 commits (merged to 'next' on 2020-08-17 at a8e6f9f3f4) + multi-pack-index: use hash version byte + commit-graph: use the "hash version" byte + t/README: document GIT_TEST_DEFAULT_HASH midx and commit-graph files now use the byte defined in their file format specification for identifying the hash function used for object names. Will merge to 'master'. * hn/refs-fetch-head-is-special (2020-08-17) 4 commits - refs: read FETCH_HEAD generically - refs: move gitdir into base ref_store - refs: fix comment about submodule ref_stores - Split off reading loose ref data in separate function (this branch is used by hn/refs-pseudorefs.) The FETCH_HEAD is now always read from the filesystem regardless of the ref backend in use, as its format is much richer than the normal refs, and written directly by "git fetch" as a plain file.. * hv/ref-filter-misc (2020-08-17) 9 commits - ref-filter: add `sanitize` option for 'subject' atom - format-support: move `format_sanitized_subject()` from pretty - pretty: refactor `format_sanitized_subject()` - ref-filter: add `short` modifier to 'parent' atom - ref-filter: add `short` modifier to 'tree' atom - ref-filter: rename `objectname` related functions and fields - ref-filter: modify error messages in `grab_objectname()` - ref-filter: refactor `grab_objectname()` - ref-filter: support different email formats The "--format=" option to the "for-each-ref" command and friends learned a few more tricks, e.g. the ":short" suffix that applies to "objectname" now also can be used for "parent", "tree", etc. * jc/object-names-are-not-sha-1 (2020-08-14) 1 commit (merged to 'next' on 2020-08-17 at 400fe9e831) + messages: avoid SHA-1 in end-user facing messages A few end-user facing messages have been update to be hash-algorithm agnostic. Will merge to 'master'. * jh/mingw-unlink (2020-08-17) 1 commit (merged to 'next' on 2020-08-17 at fb53a3d1a1) + mingw: improve performance of mingw_unlink() "unlink" emulation on MinGW has been optimized. Will merge to 'master'. * jk/leakfix (2020-08-17) 7 commits - submodule--helper: fix leak of core.worktree value - config: fix leak in git_config_get_expiry_in_days() - config: drop git_config_get_string_const() - config: fix leaks from git_config_get_string_const() - checkout: fix leak of non-existent branch names - submodule--helper: use strbuf_release() to free strbufs - clear_pattern_list(): clear embedded hashmaps Code clean-up. Will merge to 'next'. * jk/refspecs-negative (2020-08-17) 3 commits - refspec: add support for negative refspecs - refspec: make sure stack refspec_item variables are zeroed - refspec: fix documentation referring to refspec_item "negative refspecs" * jt/fetch-pack-loosen-validation-with-packfile-uri (2020-08-14) 1 commit - fetch-pack: make packfile URIs work with transfer.fsckobjects Bugfix for "git fetch" when the packfile URI capability is in use. Need to pick up a reroll. * mr/diff-hide-stat-wo-textual-change (2020-08-17) 1 commit - diff: teach --stat to ignore uninteresting modifications Expecting a reroll. * pw/add-p-allowed-options-fix (2020-08-17) 2 commits - add -p: fix checking of user input - add -p: use ALLOC_GROW_BY instead of ALLOW_GROW "git add -p" update. Doubts? cf. <pull.702.git.1597670589.gitgitgadget@xxxxxxxxx> * dl/subtree-docs (2020-08-18) 2 commits - contrib/subtree: document 'push' does not take '--squash' - contrib/subtree: fix "unsure" for --message in the document Doc updates for subtree (in contrib/) Will merge to 'next'. * en/mem-pool (2020-08-18) 3 commits - mem-pool: use consistent pool variable name - mem-pool: use more standard initialization and finalization - mem-pool: add convenience functions for strdup and strndup API update. Will merge to 'next'. * jc/no-update-fetch-head (2020-08-18) 1 commit - fetch: optionally allow disabling FETCH_HEAD update (this branch is used by ds/maintenance-part-1, ds/maintenance-part-2 and jt/lazy-fetch.) "git fetch" learned --no-write-fetch-head option to avoid writing the FETCH_HEAD file. Will merge to 'next'. * jt/lazy-fetch (2020-08-18) 7 commits - fetch-pack: remove no_dependents code - promisor-remote: lazy-fetch objects in subprocess - fetch-pack: do not lazy-fetch during ref iteration - fetch: only populate existing_refs if needed - fetch: avoid reading submodule config until needed - fetch: allow refspecs specified through stdin - negotiator/noop: add noop fetch negotiator (this branch uses jc/no-update-fetch-head; is tangled with ds/maintenance-part-1 and ds/maintenance-part-2.) Updates to on-demand fetching code in lazily cloned repositories. * mt/checkout-entry-dead-code-removal (2020-08-18) 1 commit - checkout_entry(): remove unreachable error() call Code clean-up. Will merge to 'next'. -------------------------------------------------- [Stalled] * mt/grep-sparse-checkout (2020-06-12) 6 commits - config: add setting to ignore sparsity patterns in some cmds - grep: honor sparse checkout patterns - config: correctly read worktree configs in submodules - t/helper/test-config: facilitate addition of new cli options - t/helper/test-config: return exit codes consistently - doc: grep: unify info on configuration variables "git grep" has been tweaked to be limited to the sparse checkout paths. Review needed on 4/6; otherwise looking sane. cf. <CABPp-BGdEyEeajYZj_rdxp=MyEQdszuyjVTax=hhYj3fOtRQUQ@xxxxxxxxxxxxxx> * ls/mergetool-meld-auto-merge (2020-07-12) 2 commits - SQUASH??? - Support auto-merge for meld to follow the vim-diff behavior The 'meld' backend of the "git mergetool" learned to give the underlying 'meld' the '--auto-merge' option, which would help reduce the amount of text that requires manual merging. Expecting a reroll. * mf/submodule-summary-with-correct-repository (2020-06-24) 2 commits - submodule: use submodule repository when preparing summary - revision: use repository from rev_info when parsing commits "git diff/show" on a change that involves a submodule used to read the information on commits in the submodule from a wrong repository and gave a wrong information when the commit-graph is involved. Needs tests. * dr/push-remoteref-fix (2020-04-23) 1 commit - remote.c: fix handling of %(push:remoteref) The "%(push:remoteref)" placeholder in the "--format=" argument of "git format-patch" (and friends) only showed what got explicitly configured, not what ref at the receiving end would be updated when "git push" was used, as it ignored the default behaviour (e.g. update the same ref as the source). Expecting a reroll. cf. <20200416152145.wp2zeibxmuyas6y6@feanor> * mr/bisect-in-c-2 (2020-07-17) 14 commits . SQUASH??? do not add new users of git_path_bisect_head() . bisect--helper: retire `--bisect-autostart` subcommand . bisect--helper: retire `--write-terms` subcommand . bisect--helper: retire `--check-expected-revs` subcommand . bisect--helper: reimplement `bisect_state` & `bisect_head` shell functions in C . bisect--helper: retire `--next-all` subcommand . bisect--helper: retire `--bisect-clean-state` subcommand . bisect--helper: finish porting `bisect_start()` to C . bisect--helper: reimplement `bisect_next` and `bisect_auto_next` shell functions in C . bisect: call 'clear_commit_marks_all()' in 'bisect_next_all()' . bisect--helper: reimplement `bisect_autostart` shell function in C . bisect--helper: introduce new `write_in_file()` function . bisect--helper: use '-res' in 'cmd_bisect__helper' return . bisect--helper: BUG() in cmd_*() on invalid subcommand Rewrite of the remainder of "git bisect" script in C continues. Needs more work. Ejected out of 'seen'; al/bisect-first-parent topic has a bit of textual conflict with this topic. * mk/use-size-t-in-zlib (2018-10-15) 1 commit - zlib.c: use size_t for size The wrapper to call into zlib followed our long tradition to use "unsigned long" for sizes of regions in memory, which have been updated to use "size_t". -------------------------------------------------- [Cooking] * jx/proc-receive-hook (2020-08-17) 10 commits - doc: add documentation for the proc-receive hook - transport: parse report options for tracking refs - t5411: test updates of remote-tracking branches - receive-pack: new config receive.procReceiveRefs - receive-pack: feed report options to post-receive - doc: add document for capability report-status-v2 - New capability "report-status-v2" for git-push - receive-pack: add new proc-receive hook - t5411: add basic test cases for proc-receive hook - transport: not report a non-head push as a branch "git receive-pack" that accepts requests by "git push" learned to outsource most of the ref updates to the new "proc-receive" hook. Needs review. * pw/rebase-i-more-options (2020-08-17) 5 commits - rebase: add --reset-author-date - rebase -i: support --ignore-date - rebase -i: support --committer-date-is-author-date - am: stop exporting GIT_COMMITTER_DATE - rebase -i: add --ignore-whitespace flag "git rebase -i" learns a bit more options. Waiting for a (hopefully final) review. * rs/more-buffered-io (2020-08-17) 3 commits - upload-pack: use buffered I/O to talk to rev-list - midx: use buffered I/O to talk to pack-objects - connected: use buffered I/O to talk to rev-list Use more buffered I/O where we used to call many small write(2)s. Will merge to 'next'. * en/merge-tests (2020-08-10) 11 commits (merged to 'next' on 2020-08-13 at eab952350b) + t6425: be more flexible with rename/delete conflict messages + t642[23]: be more flexible for add/add conflicts involving pair renames + t6422, t6426: be more flexible for add/add conflicts involving renames + t6423: add an explanation about why one of the tests does not pass + t6416, t6423: clarify some comments and fix some typos + t6422: fix multiple errors with the mod6 test expectations + t6423: fix test setup for a couple tests + t6416, t6422: fix incorrect untracked file count + t6422: fix bad check against missing file + t6418: tighten delete/normalize conflict testcase + Collect merge-related tests to t64xx Updates to "git merge" tests, in preparation for a new merge strategy backend. Will merge to 'master'. * ds/midx-repack-to-batch-size (2020-08-11) 1 commit (merged to 'next' on 2020-08-17 at eee94634aa) + multi-pack-index: repack batches below --batch-size The "--batch-size" option of "git multi-pack-index repack" command is now used to specify that very small packfiles are collected into one until the total size roughly exceeds it. Will merge to 'master'. * rs/upload-pack-sigchain-fix (2020-08-11) 1 commit (merged to 'next' on 2020-08-17 at 997473f309) + upload-pack: remove superfluous sigchain_pop() call Code clean-up. Will merge to 'master'. * tb/bloom-improvements (2020-08-11) 14 commits - builtin/commit-graph.c: introduce '--max-new-filters=<n>' - commit-graph: rename 'split_commit_graph_opts' - commit-graph: add large-filters bitmap chunk - commit-graph.c: sort index into commits list - bloom/diff: properly short-circuit on max_changes - bloom: use provided 'struct bloom_filter_settings' - csum-file.h: introduce 'hashwrite_be64()' - bloom: split 'get_bloom_filter()' in two - commit-graph.c: store maximum changed paths - commit-graph: respect 'commitGraph.readChangedPaths' - t/helper/test-read-graph.c: prepare repo settings - commit-graph: pass a 'struct repository *' in more places - t4216: use an '&&'-chain - commit-graph: introduce 'get_bloom_filter_settings()' Misc Bloom filter improvements. Expecting a reroll. It seems that the review is getting closer to result in another update. cf. <20200811220503.GC66656@xxxxxxx> * ak/sequencer-fix-find-uniq-abbrev (2020-08-13) 1 commit (merged to 'next' on 2020-08-17 at 6ce0f1d111) + rebase -i: fix possibly wrong onto hash in todo Ring buffer with size 4 used for bin-hex translation resulted in a wrong object name in the sequencer's todo output, which has been corrected. Will merge to 'master'. * en/dir-nonbare-embedded (2020-08-12) 2 commits (merged to 'next' on 2020-08-17 at ab180b7fcb) + dir: avoid prematurely marking nonbare repositories as matches + t3000: fix some test description typos "ls-files -o" mishandled the top-level directory of another git working tree that hangs in the current git working tree. Will merge to 'master'. * en/sequencer-merge-labels (2020-08-14) 1 commit (merged to 'next' on 2020-08-17 at 2010e329ed) + sequencer: avoid garbled merge machinery messages due to commit labels The commit labels used to explain each side of conflicted hunks placed by the sequencer machinery have been made more readable by humans. Will merge to 'master'. * jb/commit-graph-doc-fix (2020-08-13) 1 commit (merged to 'next' on 2020-08-17 at d83ee98955) + docs: commit-graph: fix some whitespace in the diagram Docfix. Will merge to 'master'. * jk/blame-coalesce-fix (2020-08-13) 3 commits (merged to 'next' on 2020-08-17 at 122c701ec7) + blame: only coalesce lines that are adjacent in result + t8003: factor setup out of coalesce test + t8003: check output of coalesced blame When given more than one target line ranges, "git blame -La,b -Lc,d" was over-eager to coalesce groups of original lines and showed incorrect results, which has been corrected. Will merge to 'master'. * jk/slimmed-down (2020-08-13) 5 commits - drop vcs-svn experiment - make git-fast-import a builtin - make git-bugreport a builtin - make credential helpers builtins - Makefile: drop builtins from MSVC pdb list Trim an unused binary and turn a bunch of commands into built-in. In general this is a good thing to do, modulo 'bugreport'. * jk/unleak-fixes (2020-08-13) 2 commits (merged to 'next' on 2020-08-17 at f9bd296b25) + ls-remote: simplify UNLEAK() usage + stop calling UNLEAK() before die() Fix some incorrect UNLEAK() annotations. Will merge to 'master'. * pb/set-url-docfix (2020-08-13) 1 commit (merged to 'next' on 2020-08-17 at 19b56c6ebb) + fetch, pull doc: correct description of '--set-upstream' Doc fix. Will merge to 'master'. * pb/userdiff-fortran-update (2020-08-13) 2 commits (merged to 'next' on 2020-08-17 at 534af3f35a) + userdiff: improve Fortran xfuncname regex + userdiff: add tests for Fortran xfuncname regex The regexp to identify the function boundary for FORTRAN programs has been updated. Will merge to 'master'. * rs/preserve-merges-unused-code-removal (2020-08-12) 1 commit (merged to 'next' on 2020-08-17 at b96393455c) + rebase: remove unused function reschedule_last_action Code clean-up. Will merge to 'master'. * ss/t7401-modernize (2020-08-12) 4 commits - t7401: add a NEEDSWORK - t7401: change indentation for enhanced readability - t7401: change test_i18ncmp syntax for clarity - t7401: modernize style Test clean-up. Expecting a reroll. cf. <c70f7bb5d1289f5318da7b99e41cf5828a451174.camel@xxxxxxxxx> Almost there, it seems. * ds/maintenance-part-2 (2020-08-18) 8 commits - maintenance: add incremental-repack auto condition - maintenance: auto-size incremental-repack batch - maintenance: add incremental-repack task - midx: use start_delayed_progress() - midx: enable core.multiPackIndex by default - maintenance: create auto condition for loose-objects - maintenance: add loose-objects task - maintenance: add prefetch task (this branch uses ds/maintenance-part-1 and jc/no-update-fetch-head; is tangled with jt/lazy-fetch.) "git maintenance", an extended big brother of "git gc", continues to evolve. * ma/doc-sha-256-is-experimental (2020-08-17) 1 commit - Documentation: mark `--object-format=sha256` as experimental The recent addition of SHA-256 support is marked as experimental in the documentation. Will merge to 'next'. * ss/submodule-summary-in-c (2020-08-12) 4 commits (merged to 'next' on 2020-08-17 at 9bc352cb70) + submodule: port submodule subcommand 'summary' from shell to C + t7421: introduce a test script for verifying 'summary' output + submodule: rename helper functions to avoid ambiguity + submodule: remove extra line feeds between callback struct and macro Yet another subcommand of "git submodule" is getting rewritten in C. Will merge to 'master'. * am/ci-wsfix (2020-08-10) 1 commit - ci: fix inconsistent indentation Aesthetic fix to a CI configuration file. Waiting for a reroll. It needs a better log message. * es/init-no-separate-git-dir-in-bare (2020-08-10) 1 commit (merged to 'next' on 2020-08-17 at 80498c8659) + init: disallow --separate-git-dir with bare repository The purpose of "git init --separate-git-dir" is to initialize a new project with the repository separate from the working tree, or, in the case of an existing project, to move the repository (the .git/ directory) out of the working tree. It does not make sense to use --separate-git-dir with a bare repository for which there is no working tree, so disallow its use with bare repositories. Will merge to 'master'. * rp/ita-diff-modefix (2020-08-09) 1 commit (merged to 'next' on 2020-08-17 at c03a9cfb6e) + diff-lib: use worktree mode in diffs from i-t-a entries "git diff [<tree-ish>] $path" for a $path that is marked with i-t-a bit was not showing the mode bits from the working tree. Will merge to 'master'. * ds/maintenance-part-1 (2020-08-18) 11 commits - maintenance: add trace2 regions for task execution - maintenance: add auto condition for commit-graph task - maintenance: use pointers to check --auto - maintenance: create maintenance.<task>.enabled config - maintenance: take a lock on the objects directory - maintenance: add --task option - maintenance: add commit-graph task - maintenance: initialize task array - maintenance: replace run_auto_gc() - maintenance: add --quiet option - maintenance: create basic maintenance runner (this branch is used by ds/maintenance-part-2; uses jc/no-update-fetch-head; is tangled with jt/lazy-fetch.) A "git gc"'s big brother has been introduced to take care of more repository maintenance tasks, not limited to the object database cleaning. * es/config-hooks (2020-07-30) 6 commits - hook: add 'run' subcommand - parse-options: parse into argv_array - hook: add --porcelain to list command - hook: add list command - hook: scaffolding for git-hook subcommand - doc: propose hooks managed by the config The "hooks defined in config" topic. Expecting a reroll. Now jk/strvec is in 'master', we may want to see the topic reworked on top of it. Are there unresolved issues, or does the topic need a round of detailed review? cf. <xmqqmu3i9kvg.fsf@xxxxxxxxxxxxxxxxxxxxxx> -------------------------------------------------- [Discarded] * rs/fast-export-anon-simplify (2020-08-13) 1 commit . fast-export: factor out print_oid() Code simplification. Retracted. cf. <6e2d4472-8293-4f10-0ba6-82ae83f7a465@xxxxxx> * mt/hash-to-hex-thread-safety (2020-06-26) 2 commits . hex: make hash_to_hex_algop() and friends thread-safe . compat/win32/pthread: add pthread_once() hash_to_hex() used a set of rotating static buffers, which was not safe to use in a threaded environment. This has been made safer by using thread-local storage. Retracted. cf. <CAHd-oW7Wd8oSaMhPFeRcEeKTJ-k_hC7b6e28efhXT5LFu1E_Uw@xxxxxxxxxxxxxx>