UI, Workflows & Features
- * Rename detection logic in "diff" family that is used in "merge" has
+ * Rename detection logic that is used in "merge" and "cherry-pick" has
learned to guess when all of x/a, x/b and x/c have moved to z/a,
z/b and z/c, it is likely that x/d added in the meantime would also
want to move to z/d by taking the hint that the entire directory
'x' moved to 'z'. A bug causing dirty files involved in a rename
to be overwritten during merge has also been fixed as part of this
- work.
+ work. Incidentally, this also avoids updating a file in the
+ working tree after a (non-trivial) merge whose result matches what
+ our side originally had.
* "git filter-branch" learned to use a different exit code to allow
the callers to tell the case where there was no new commits to
have been replaced with a stub that errors out and tells the user
there are replacements.
- * The new "checkout-encoding" attribute can ask Git to convert the
+ * The new "working-tree-encoding" attribute can ask Git to convert the
contents to the specified encoding when checking out to the working
tree (and the other way around when checking in).
"feature" to fetch only commits and/or trees, which nobody used.
This has been removed.
+ * The functionality of "$GIT_DIR/info/grafts" has been superseded by
+ the "refs/replace/" mechanism for some time now, but the internal
+ code had support for it in many places, which has been cleaned up
+ in order to drop support of the "grafts" mechanism.
+
+ * "git worktree add" learned to check out an existing branch.
+
+ * "git --no-pager cmd" did not have short-and-sweet single letter
+ option. Now it does as "-P".
+ (merge 7213c28818 js/no-pager-shorthand later to maint).
+
+ * "git rebase" learned "--rebase-merges" to transplant the whole
+ topology of commit graph elsewhere.
+
+ * "git status" learned to pay attention to UI related diff
+ configuration variables such as diff.renames.
+
+ * The command line completion mechanism (in contrib/) learned to load
+ custom completion file for "git $command" where $command is a
+ custom "git-$command" that the end user has on the $PATH when using
+ newer version of bash-completion.
+
+ * "git send-email" can sometimes offer confirmation dialog "Send this
+ email?" with choices 'Yes', 'No', 'Quit', and 'All'. A new action
+ 'Edit' has been added to this dialog's choice.
+
+ * With merge.renames configuration set to false, the recursive merge
+ strategy can be told not to spend cycles trying to find renamed
+ paths and merge them accordingly.
+
+ * "git status" learned to honor a new status.renames configuration to
+ skip rename detection, which could be useful for those who want to
+ do so without disabling the default rename detection done by the
+ "git diff" command.
+
+ * Command line completion (in contrib/) learned to complete pathnames
+ for various commands better.
+
+ * "git blame" learns to unhighlight uninteresting metadata from the
+ originating commit on lines that are the same as the previous one,
+ and also paint lines in different colors depending on the age of
+ the commit.
+
+ * Transfer protocol v2 learned to support the partial clone.
+
+ * When a short hexadecimal string is used to name an object but there
+ are multiple objects that share the string as the prefix of their
+ names, the code lists these ambiguous candidates in a help message.
+ These object names are now sorted according to their types for
+ easier eyeballing.
+
+ * "git fetch $there $refspec" that talks over protocol v2 can take
+ advantage of server-side ref filtering; the code has been extended
+ so that this mechanism triggers also when fetching with configured
+ refspec.
+
+ * Our HTTP client code used to advertise that we accept gzip encoding
+ from the other side; instead, just let cURL library to advertise
+ and negotiate the best one.
+
+ * "git p4" learned to "unshelve" shelved commit from P4.
+ (merge 123f631761 ld/p4-unshelve later to maint).
+
Performance, Internal Implementation, Development Support etc.
* The code to interface to GPG has been restructured somewhat to make
it cleaner to integrate with other types of signature systems later.
+ * The code has been taught to use the duplicated information stored
+ in the commit-graph file to learn the tree object name for a commit
+ to avoid opening and parsing the commit object when it makes sense
+ to do so.
+
+ * "git gc" in a large repository takes a lot of time as it considers
+ to repack all objects into one pack by default. The command has
+ been taught to pretend as if the largest existing packfile is
+ marked with ".keep" so that it is left untouched while objects in
+ other packs and loose ones are repacked.
+
+ * The transport protocol v2 is getting updated further.
+
+ * The codepath around object-info API has been taught to take the
+ repository object (which in turn tells the API which object store
+ the objects are to be located).
+
+ * "git pack-objects" needs to allocate tons of "struct object_entry"
+ while doing its work, and shrinking its size helps the performance
+ quite a bit.
+
+ * The implementation of "git rebase -i --root" has been updated to use
+ the sequencer machinery more.
+
+ * Developer support update, by using BUG() macro instead of die() to
+ mark codepaths that should not happen more clearly.
+
+ * Developer support. Use newer GCC on one of the builds done at
+ TravisCI.org to get more warnings and errors diagnosed.
+
+ * Conversion from uchar[20] to struct object_id continues.
+
+ * By code restructuring of submodule merge in merge-recursive,
+ informational messages from the codepath are now given using the
+ same mechanism as other output, and honor the merge.verbosity
+ configuration. The code also learned to give a few new messages
+ when a submodule three-way merge resolves cleanly when one side
+ records a descendant of the commit chosen by the other side.
+
+ * Avoid unchecked snprintf() to make future code auditing easier.
+ (merge ac4896f007 jk/snprintf-truncation later to maint).
+
+ * Many tests hardcode the raw object names, which would change once
+ we migrate away from SHA-1. While some of them must test against
+ exact object names, most of them do not have to use hardcoded
+ constants in the test. The latter kind of tests have been updated
+ to test the moral equivalent of the original without hardcoding the
+ actual object names.
+
+ * The list of commands with their various attributes were spread
+ across a few places in the build procedure, but it now is getting a
+ bit more consolidated to allow more automation.
+
+ * Quite a many tests assumed that newly created refs are made as
+ loose refs using the files backend, which have been updated to use
+ proper plumbing like rev-parse and update-ref, to avoid breakage
+ once we start using different ref backends.
+
Also contains various documentation updates and code clean-ups.
after giving an error message.
(merge 3bb0923f06 ps/contains-id-error-message later to maint).
- * "diff-highlight" filter (in contrib/) learned to undertand "git log
+ * "diff-highlight" filter (in contrib/) learned to understand "git log
--graph" output better.
(merge 4551fbba14 jk/diff-highlight-graph-fix later to maint).
some merge commits in certain cases, which has been corrected.
(merge be011bbe00 ma/fast-export-skip-merge-fix later to maint).
+ * The code did not propagate the terminal width to subprocesses via
+ COLUMNS environment variable, which it now does. This caused
+ trouble to "git column" helper subprocess when "git tag --column=row"
+ tried to list the existing tags on a display with non-default width.
+ (merge b5d5a567fb nd/term-columns later to maint).
+
+ * We learned that our source files with ".pl" and ".py" extensions
+ are Perl and Python files respectively and changes to them are
+ better viewed as such with appropriate diff drivers.
+ (merge 7818b619e2 ab/perl-python-attrs later to maint).
+
+ * "git rebase -i" sometimes left intermediate "# This is a
+ combination of N commits" message meant for the human consumption
+ inside an editor in the final result in certain corner cases, which
+ has been fixed.
+ (merge 15ef69314d js/rebase-i-clean-msg-after-fixup-continue later to maint).
+
+ * A test to see if the filesystem normalizes UTF-8 filename has been
+ updated to check what we need to know in a more direct way, i.e. a
+ path created in NFC form can be accessed with NFD form (or vice
+ versa) to cope with APFS as well as HFS.
+ (merge 742ae10e35 tb/test-apfs-utf8-normalization later to maint).
+
+ * "git format-patch --cover --attach" created a broken MIME multipart
+ message for the cover letter, which has been fixed by keeping the
+ cover letter as plain text file.
+ (merge 50cd54ef4e bc/format-patch-cover-no-attach later to maint).
+
+ * The split-index feature had a long-standing and dormant bug in
+ certain use of the in-core merge machinery, which has been fixed.
+ (merge 7db118303a en/unpack-trees-split-index-fix later to maint).
+
+ * Asciidoctor gives a reasonable imitation for AsciiDoc, but does not
+ render illustration in a literal block correctly when indented with
+ HT by default. The problem is fixed by forcing 8-space tabs.
+ (merge 379805051d bc/asciidoctor-tab-width later to maint).
+
+ * Code clean-up to adjust to a more recent lockfile API convention that
+ allows lockfile instances kept on the stack.
+ (merge 0fa5a2ed8d ma/lockfile-cleanup later to maint).
+
+ * the_repository->index is not a allocated piece of memory but
+ repo_clear() indiscriminately attempted to free(3) it, which has
+ been corrected.
+ (merge 74373b5f10 nd/repo-clear-keep-the-index later to maint).
+
+ * Code clean-up to avoid non-standard-conformant pointer arithmetic.
+ (merge c112084af9 rs/no-null-ptr-arith-in-fast-export later to maint).
+
+ * Code clean-up to turn history traversal more robust in a
+ semi-corrupt repository.
+ (merge 8702b30fd7 jk/unavailable-can-be-missing later to maint).
+
+ * "git update-ref A B" is supposed to ensure that ref A does not yet
+ exist when B is a NULL OID, but this check was not done correctly
+ for pseudo-refs outside refs/ hierarchy, e.g. MERGE_HEAD.
+
+ * "git submodule update" and "git submodule add" supported the
+ "--reference" option to borrow objects from a neighbouring local
+ repository like "git clone" does, but lacked the more recent
+ invention "--dissociate". Also "git submodule add" has been taught
+ to take the "--progress" option.
+ (merge a0ef29341a cf/submodule-progress-dissociate later to maint).
+
+ * Update credential-netrc helper (in contrib/) to allow customizing
+ the GPG used to decrypt the encrypted .netrc file.
+ (merge 786ef50a23 lm/credential-netrc later to maint).
+
+ * "git submodule update" attempts two different kinds of "git fetch"
+ against the upstream repository to grab a commit bound at the
+ submodule's path, but it incorrectly gave up if the first kind
+ (i.e. a normal fetch) failed, making the second "last resort" one
+ (i.e. fetching an exact commit object by object name) ineffective.
+ This has been corrected.
+ (merge e30d833671 sb/submodule-update-try-harder later to maint).
+
+ * Error behaviour of "git grep" when it cannot read the index was
+ inconsistent with other commands that uses the index, which has
+ been corrected to error out early.
+ (merge b2aa84c789 sb/grep-die-on-unreadable-index later to maint).
+
+ * We used to call regfree() after regcomp() failed in some codepaths,
+ which have been corrected.
+ (merge 17154b1576 ma/regex-no-regfree-after-comp-fail later to maint).
+
+ * The import-tars script (in contrib/) has been taught to handle
+ tarballs with overly long paths that use PAX extended headers.
+ (merge 12ecea46e3 pa/import-tars-long-names later to maint).
+
+ * "git rev-parse Y..." etc. misbehaved when given endpoints were
+ not committishes.
+ (merge 0ed556d38f en/rev-parse-invalid-range later to maint).
+
+ * "git pull --recurse-submodules --rebase", when the submodule
+ repository's history did not have anything common between ours and
+ the upstream's, failed to execute. We need to fetch from them to
+ continue even in such a case.
+ (merge 4d36f88be7 jt/submodule-pull-recurse-rebase later to maint).
+
+ * "git remote update" can take both a single remote nickname and a
+ nickname for remote groups, but only one of them was documented.
+ (merge a97447a42a nd/remote-update-doc later to maint).
+
+ * "index-pack --strict" has been taught to make sure that it runs the
+ final object integrity checks after making the freshly indexed
+ packfile available to itself.
+ (merge 3737746120 jk/index-pack-maint later to maint).
+
+ * Make zlib inflate codepath more robust against versions of zlib
+ that clobber unused portion of outbuf.
+ (merge b611396e97 jl/zlib-restore-nul-termination later to maint).
+
+ * Fix old merge glitch in Documentation during v2.13-rc0 era.
+ (merge 28cb06020b mw/doc-merge-enumfix later to maint).
+
+ * The code to read compressed bitmap was not careful to avoid reading
+ past the end of the file, which has been corrected.
+ (merge 1140bf01ec jk/ewah-bounds-check later to maint).
+
+ * "make NO_ICONV=NoThanks" did not override NEEDS_LIBICONV
+ (i.e. linkage of -lintl, -liconv, etc. that are platform-specific
+ tweaks), which has been corrected.
+ (merge fdb1fbbc7d es/make-no-iconv later to maint).
+
* Other minor doc, test and build updates and code cleanups.
(merge 248f66ed8e nd/trace-with-env later to maint).
(merge 14ced5562c ys/bisect-object-id-missing-conversion-fix later to maint).
(merge adc887221f tq/t1510 later to maint).
(merge bed21a8ad6 sg/doc-gc-quote-mismatch-fix later to maint).
(merge 73364e4f10 tz/doc-git-urls-reference later to maint).
+ (merge cd1e606bad bc/mailmap-self later to maint).
+ (merge f7997e3682 ao/config-api-doc later to maint).
+ (merge ee930754d8 jk/apply-p-doc later to maint).
+ (merge 011b648646 nd/pack-format-doc later to maint).
+ (merge 87a6bb701a sg/t5310-jgit-bitmap-test later to maint).
+ (merge f6b82970aa sg/t5516-fixes later to maint).
+ (merge 4362da078e sg/t7005-spaces-in-filenames-cleanup later to maint).
+ (merge 7d0ee47c11 js/test-unset-prereq later to maint).
+ (merge 5356a3c354 ah/misc-doc-updates later to maint).
+ (merge 92c4a7a129 nd/completion-aliasfiletype-typofix later to maint).
+ (merge 58bd77b66a nd/pack-unreachable-objects-doc later to maint).
+ (merge 4ed79d5203 sg/t6500-no-redirect-of-stdin later to maint).
+ (merge 17b8a2d6cd jk/config-blob-sans-repo later to maint).
+ (merge 590551ca2c rd/tag-doc-lightweight later to maint).
+ (merge 44f560fc16 rd/init-typo later to maint).
+ (merge f156a0934a rd/p4-doc-markup-env later to maint).
+ (merge 2a00502b14 tg/doc-sec-list later to maint).
+ (merge 47cc91310a jk/submodule-fsck-loose-fixup later to maint).
+ (merge efde7b725c rd/comment-typofix-in-sha1-file later to maint).
+ (merge 7eedad15df rd/diff-options-typofix later to maint).
+ (merge 58ebd936cc km/doc-workflows-typofix later to maint).
+ (merge 30aa96cdf8 rd/doc-remote-tracking-with-hyphen later to maint).
+ (merge cf317877e3 ks/branch-set-upstream later to maint).
+ (merge 8de19d6be8 sg/t7406-chain-fix later to maint).