217 lines
9.5 KiB
Plaintext
217 lines
9.5 KiB
Plaintext
Git 2.13 Release Notes
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======================
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Backward compatibility notes.
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* Use of an empty string as a pathspec element that is used for
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'everything matches' is still warned and Git asks users to use a
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more explicit '.' for that instead. The hope is that existing
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users will not mind this change, and eventually the warning can be
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turned into a hard error, upgrading the deprecation into removal of
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this (mis)feature. That is not scheduled to happen in the upcoming
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release (yet).
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* The historical argument order "git merge <msg> HEAD <commit>..."
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has been deprecated for quite some time, and will be removed in a
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future release.
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Updates since v2.12
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-------------------
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UI, Workflows & Features
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* "git describe" and "git name-rev" have been taught to take more
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than one refname patterns to restrict the set of refs to base their
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naming output on, and also learned to take negative patterns to
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name refs not to be used for naming via their "--exclude" option.
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* Deletion of a branch "foo/bar" could remove .git/refs/heads/foo
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once there no longer is any other branch whose name begins with
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"foo/", but we didn't do so so far. Now we do.
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* When "git merge" detects a path that is renamed in one history
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while the other history deleted (or modified) it, it now reports
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both paths to help the user understand what is going on in the two
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histories being merged.
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* The <url> part in "http.<url>.<variable>" configuration variable
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can now be spelled with '*' that serves as wildcard.
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E.g. "http.https://*.example.com.proxy" can be used to specify the
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proxy used for https://a.example.com, https://b.example.com, etc.,
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i.e. any host in the example.com domain.
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* "git tag" did not leave useful message when adding a new entry to
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reflog; this was left unnoticed for a long time because refs/tags/*
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doesn't keep reflog by default.
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* The "negative" pathspec feature was somewhat more cumbersome to use
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than necessary in that its short-hand used "!" which needed to be
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escaped from shells, and it required "exclude from what?" specified.
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* The command line options for ssh invocation needs to be tweaked for
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some implementations of SSH (e.g. PuTTY plink wants "-P <port>"
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while OpenSSH wants "-p <port>" to specify port to connect to), and
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the variant was guessed when GIT_SSH environment variable is used
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to specify it. The logic to guess now applies to the command
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specified by the newer GIT_SSH_COMMAND and also core.sshcommand
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configuration variable, and comes with an escape hatch for users to
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deal with misdetected cases.
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* The "--git-path", "--git-common-dir", and "--shared-index-path"
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options of "git rev-parse" did not produce usable output. They are
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now updated to show the path to the correct file, relative to where
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the caller is.
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* "git diff -W" has been taught to handle the case where a new
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function is added at the end of the file better.
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* "git update-ref -d" and other operations to delete references did
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not leave any entry in HEAD's reflog when the reference being
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deleted was the current branch. This is not a problem in practice
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because you do not want to delete the branch you are currently on,
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but caused renaming of the current branch to something else not to
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be logged in a useful way.
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* "Cc:" on the trailer part does not have to conform to RFC strictly,
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unlike in the e-mail header. "git send-email" has been updated to
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ignore anything after '>' when picking addresses, to allow non-address
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cruft like " # stable 4.4" after the address.
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(merge 9d3343961b jh/send-email-one-cc later to maint).
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* When "git submodule init" decides that the submodule in the working
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tree is its upstream, it now gives a warning as it is not a very
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common setup.
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(merge d1b3b81aab sb/submodule-init-url-selection later to maint).
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* "git stash save" takes a pathspec so that the local changes can be
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stashed away only partially.
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(merge 9e140909f6 tg/stash-push later to maint).
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Performance, Internal Implementation, Development Support etc.
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* The code to list branches in "git branch" has been consolidated
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with the more generic ref-filter API.
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* Resource usage while enumerating refs from alternate object store
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has been optimized to help receiving end of "push" that hosts a
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repository with many "forks".
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* The gitattributes machinery is being taught to work better in a
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multi-threaded environment.
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* "git rebase -i" starts using the recently updated "sequencer" code.
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* Code and design clean-up for the refs API.
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* The preload-index code has been taught not to bother with the index
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entries that are paths that are not checked out by "sparse checkout".
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* Some warning() messages from "git clean" were updated to show the
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errno from failed system calls.
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* The "parse_config_key()" API function has been cleaned up.
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(merge ad8c7cdadd jk/parse-config-key-cleanup later to maint).
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* A test that creates a confusing branch whose name is HEAD has been
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corrected not to do so.
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(merge f0252ca23c jk/t6300-cleanup later to maint).
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* The code that parses header fields in the commit object has been
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updated for (micro)performance and code hygiene.
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(merge b072504ce1 rs/commit-parsing-optim later to maint).
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* An helper function to make it easier to append the result from
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real_path() to a strbuf has been added.
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(merge 33ad9ddd0b rs/strbuf-add-real-path later to maint).
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* Reduce authentication round-trip over HTTP when the server supports
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just a single authentication method. This also improves the
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behaviour when Git is misconfigured to enable http.emptyAuth
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against a server that does not authenticate without a username
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(i.e. not using Kerberos etc., which makes http.emptyAuth
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pointless).
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(merge 40a18fc77c jk/http-auth later to maint).
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Also contains various documentation updates and code clean-ups.
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Fixes since v2.12
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-----------------
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Unless otherwise noted, all the fixes since v2.9 in the maintenance
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track are contained in this release (see the maintenance releases'
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notes for details).
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* "git repack --depth=<n>" for a long time busted the specified depth
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when reusing delta from existing packs. This has been corrected.
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(merge 42b766d765 jk/delta-chain-limit later to maint).
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* The code to parse the command line "git grep <patterns>... <rev>
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[[--] <pathspec>...]" has been cleaned up, and a handful of bugs
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have been fixed (e.g. we used to check "--" if it is a rev).
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(merge 131f3c96d2 jk/grep-no-index-fix later to maint).
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* "git ls-remote" and "git archive --remote" are designed to work
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without being in a directory under Git's control. However, recent
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updates revealed that we randomly look into a directory called
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.git/ without actually doing necessary set-up when working in a
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repository. Stop doing so.
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(merge 4b0c3c7735 jn/remote-helpers-with-git-dir later to maint).
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* "git show-branch" expected there were only very short branch names
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in the repository and used a fixed-length buffer to hold them
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without checking for overflow.
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(merge d3cc5f4c44 jk/show-branch-lift-name-len-limit later to maint).
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* A caller of tempfile API that uses stdio interface to write to
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files may ignore errors while writing, which is detected when
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tempfile is closed (with a call to ferror()). By that time, the
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original errno that may have told us what went wrong is likely to
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be long gone and was overwritten by an irrelevant value.
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close_tempfile() now resets errno to EIO to make errno at least
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predictable.
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(merge 7e8c9355b7 jk/tempfile-ferror-fclose-confusion later to maint).
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* "git remote rm X", when a branch has remote X configured as the
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value of its branch.*.remote, tried to remove branch.*.remote and
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branch.*.merge and failed if either is unset.
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(merge 20690b2139 rl/remote-allow-missing-branch-name-merge later to maint).
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* A "gc.log" file left by a backgrounded "gc --auto" disables further
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automatic gc; it has been taught to run at least once a day (by
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default) by ignoring a stale "gc.log" file that is too old.
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(merge a831c06a2b dt/gc-ignore-old-gc-logs later to maint).
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* The code to parse "git -c VAR=VAL cmd" and set configuration
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variable for the duration of cmd had two small bugs, which have
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been fixed.
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(merge 1274a155af jc/config-case-cmdline-take-2 later to maint).
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* user.email that consists of only cruft chars should consistently
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error out, but didn't.
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(merge 94425552f3 jk/ident-empty later to maint).
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* "git upload-pack", which is a counter-part of "git fetch", did not
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report a request for a ref that was not advertised as invalid.
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This is generally not a problem (because "git fetch" will stop
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before making such a request), but is the right thing to do.
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(merge bdb31eada7 jt/upload-pack-error-report later to maint).
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* A leak in a codepath to read from a packed object in (rare) cases
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has been plugged.
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(merge 886ddf4777 rs/sha1-file-plug-fallback-base-leak later to maint).
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* When a redirected http transport gets an error during the
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redirected request, we ignored the error we got from the server,
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and ended up giving a not-so-useful error message.
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(merge 8e27391a5f jt/http-base-url-update-upon-redirect later to maint).
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* Other minor doc, test and build updates and code cleanups.
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(merge 2cfa83574c mm/two-more-xstrfmt later to maint).
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(merge b803ae4427 ps/docs-diffcore later to maint).
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(merge bcd886d897 ew/markdown-url-in-readme later to maint).
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(merge b2d593a779 rj/remove-unused-mktemp later to maint).
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