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https://github.com/git/git
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399 lines
17 KiB
Text
399 lines
17 KiB
Text
Git v2.41 Release Notes
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=======================
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UI, Workflows & Features
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* Allow information carried on the WWW-Authenticate header to be
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passed to the credential helpers.
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* A new "fetch.hideRefs" option can be used to exclude specified refs
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from "rev-list --objects --stdin --not --all" traversal for
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checking object connectivity, most useful when there are many
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unrelated histories in a single repository.
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* "git push" has been taught to allow deletion of refs with one-level
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names to help repairing a repository who acquired such a ref by
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mistake. In general, we don't encourage use of such a ref, and
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creation or update to such a ref is rejected as before.
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* Allow "git bisect reset" to check out the original branch when the
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branch is already checked out in a different worktree linked to the
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same repository.
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* A few subcommands have been taught to stop users from working on a
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branch that is being used in another worktree linked to the same
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repository.
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* "git format-patch" learned to write a log-message only output file
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for empty commits.
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* "git format-patch" honors the src/dst prefixes set to nonstandard
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values with configuration variables like "diff.noprefix", causing
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receiving end of the patch that expects the standard -p1 format to
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break. "format-patch" has been taught to ignore end-user configuration
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and always use the standard prefixes.
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This is a backward compatibility breaking change.
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* Lift the limitation that colored prompts can only be used with
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PROMPT_COMMAND mode.
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* "git blame --contents=<file> <rev> -- <path>" used to be forbidden,
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but now it finds the origins of lines starting at <file> contents
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through the history that leads to <rev>.
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* "git pack-redundant" gave a warning when run, as the command has
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outlived its usefulness long ago and is nominated for future
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removal. Now we escalate to give an error.
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* "git clone" from an empty repository learned to propagate the
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choice of the hash algorithm from the source repository to the
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newly created repository over any one of the v0/v1/v2 protocol.
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* "git mergetool" and "git difftool" learns a new configuration
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guiDefault to optionally favor configured guitool over non-gui-tool
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automatically when $DISPLAY is set.
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* "git branch -d origin/master" would say "no such branch", but it is
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likely a missed "-r" if refs/remotes/origin/master exists. The
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command has been taught to give such a hint in its error message.
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* Clean-up of the code path that deals with merge strategy option
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handling in "git rebase".
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* "git clone --local" stops copying from an original repository that
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has symbolic links inside its $GIT_DIR; an error message when that
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happens has been updated.
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* The "--format=..." option of "git for-each-ref", "git branch", and
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"git tag" commands learn "--omit-empty" to hide refs whose
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formatting results in an empty string from the output.
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* The sendemail-validate validate hook learned to pass the total
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number of input files and where in the sequence each invocation is
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via environment variables.
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* When "gc" needs to retain unreachable objects, packing them into
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cruft packs (instead of exploding them into loose object files) has
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been offered as a more efficient option for some time. Now the use
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of cruft packs has been made the default and no longer considered
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an experimental feature.
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* The output given by "git blame" that attributes a line to contents
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taken from the file specified by the "--contents" option shows it
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differently from a line attributed to the working tree file.
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* "git send-email" learned to give the e-mail headers to the validate
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hook by passing an extra argument from the command line.
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* The credential subsystem learns to help OAuth framework.
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* The titles of manual pages used to be chomped at an unreasonably
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short limit, which has been removed.
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* Error messages given when working on an unborn branch that is
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checked out in another worktree have been improved.
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* The documentation was misleading about the interaction between
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GIT_DEFAULT_HASH and "git clone", which has been clarified to
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stress that the variable is to be ignored by the command.
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* "git send-email" learned "--header-cmd=<cmd>" that can inject
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arbitrary e-mail header lines to the outgoing messages.
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* "git fsck" learned to detect bit-flip breakages in the reachability
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bitmap files.
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* The "--stdin" option of "git name-rev" has been replaced with
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the "--annotate-stdin" option more than a year ago. We stop
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advertising it in the "git name-rev -h" output.
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* "git push --all" gained an alias "git push --branches".
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* "git fetch" learned the "--porcelain" option that emits what it did
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in a machine-parseable format.
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* "git --attr-source=<tree> cmd $args" is a new way to have any
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command to read attributes not from the working tree but from the
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given tree object.
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Performance, Internal Implementation, Development Support etc.
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* Code clean-up to clarify directory traversal API.
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* Code clean-up to clarify the rule that "git-compat-util.h" must be
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the first to be included.
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* More work towards -Wunused.
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* Instead of forcing each command to choose to honor GPG related
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configuration variables, make the subsystem lazily initialize
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itself.
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* Remove workaround for ancient versions of DocBook to make it work
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correctly with groff, which has not been necessary since docbook
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1.76 from 2010.
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* Code clean-up to include and/or uninclude parse-options.h file as
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needed.
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* The code path that reports what "git fetch" did to each ref has
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been cleaned up.
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* Assorted config API updates.
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* A few configuration variables to tell the cURL library that
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different types of ssl-cert and ssl-key are in use have been added.
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* Split key function and data structure definitions out of cache.h to
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new header files and adjust the users.
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* "git fetch --all" does not have to download and handle the same
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bundleURI over and over, which has been corrected.
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* "git sparse-checkout" command learns a debugging aid for the sparse
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rule definitions.
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* "git write-tree" learns to work better with sparse-index.
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* The on-disk reverse index that allows mapping from the pack offset
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to the object name for the object stored at the offset has been
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enabled by default.
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* "git fsck" learned to validate the on-disk pack reverse index files.
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* strtok() and strtok_r() are banned in this codebase.
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* The detect-compilers script to help auto-tweaking the build system
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had trouble working with compilers whose version number has extra
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suffixes. The script has been taught that certain suffixes (like
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"-win32" in "gcc 10-win32") can be safely stripped as they share
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the same features and bugs with the version without the suffix.
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* ctype tests have been taught to test EOF, too.
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* The implementation of credential helpers used fgets() over fixed
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size buffers to read protocol messages, causing the remainder of
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the folded long line to trigger unexpected behaviour, which has
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been corrected.
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* The implementation of the default "negotiator", used to find common
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ancestor over the network for object tranfer, used to be recursive;
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it was updated to be iterative to conserve stackspace usage.
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* Our custom callout formatter is no longer used in the documentation
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formatting toolchain, as the upstream default ones give better
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output these days.
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* The tracing mechanism learned to notice and report when
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auto-discovered bare repositories are being used, as allowing so
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without explicitly stating the user intends to do so (with setting
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GIT_DIR for example) can be used with social engineering as an
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attack vector.
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* "git diff-files" learned not to expand sparse-index unless needed.
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Fixes since v2.40
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-----------------
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* "git fsck" learned to check the index files in other worktrees,
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just like "git gc" honors them as anchoring points.
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(merge 8d3e7eac52 jk/fsck-indices-in-worktrees later to maint).
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* Fix a segfaulting loop. The function and its caller may need
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further clean-up.
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(merge c5773dc078 ew/commit-reach-clean-up-flags-fix later to maint).
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* "git restore" supports options like "--ours" that are only
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meaningful during a conflicted merge, but these options are only
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meaningful when updating the working tree files. These options are
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marked to be incompatible when both "--staged" and "--worktree" are
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in effect.
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(merge ee8a88826a ak/restore-both-incompatible-with-conflicts later to maint).
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* Simplify UI to control progress meter given by "git bundle" command.
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(merge 8b95521edb jk/bundle-progress later to maint).
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* "git bundle" learned that "-" is a common way to say that the input
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comes from the standard input and/or the output goes to the
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standard output. It used to work only for output and only from the
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root level of the working tree.
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(merge 0bbe10313e jk/bundle-use-dash-for-stdfiles later to maint).
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* Once we start running, we assumed that the list of alternate object
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databases would never change. Hook into the machinery used to
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update the list of packfiles during runtime to update this list as
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well.
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(merge e2d003dbed ds/reprepare-alternates-when-repreparing-packfiles later to maint).
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* The code to parse "git rebase -X<opt>" was not prepared to see an
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unparsable option string, which has been corrected.
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(merge 15a4cc912e ab/fix-strategy-opts-parsing later to maint).
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* "git add -p" while the index is unmerged sometimes failed to parse
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the diff output it internally produces and died, which has been
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corrected.
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(merge 28d1122f9c jk/add-p-unmerged-fix later to maint).
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* Fix for a "ls-files --format="%(path)" that produced nonsense
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output, which was a bug in 2.38.
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(merge cfb62dd006 aj/ls-files-format-fix later to maint).
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* "git receive-pack" that responds to "git push" requests failed to
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clean a stale lockfile when killed in the middle, which has been
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corrected.
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(merge c55c30669c ps/receive-pack-unlock-before-die later to maint).
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* "git rev-parse --quiet foo@{u}", or anything that asks @{u} to be
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parsed with GET_OID_QUIETLY option, did not quietly fail, which has
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been corrected.
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(merge dfbfdc521d fc/oid-quietly-parse-upstream later to maint).
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* Transports that do not support protocol v2 did not correctly fall
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back to protocol v0 under certain conditions, which has been
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corrected.
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(merge eaa0fd6584 jk/fix-proto-downgrade-to-v0 later to maint).
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* time(2) on glib 2.31+, especially on Linux, goes out of sync with
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higher resolution timers used for gettimeofday(2) and by the
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filesystem. Replace all calls to it with a git_time() wrapper and
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(merge 370ddcbc89 pe/time-use-gettimeofday later to maint).
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* Code clean-up to use designated initializers in parse-options API.
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(merge 353e6d4554 sg/parse-options-h-initializers later to maint).
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* A recent-ish change to allow unicode character classes to be used
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with "grep -P" triggered a JIT bug in older pcre2 libraries.
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The problematic change in Git built with these older libraries has
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been disabled to work around the bug.
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(merge 14b9a04479 mk/workaround-pcre-jit-ucp-bug later to maint).
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* The wildmatch library code unlearns exponential behaviour it
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acquired some time ago since it was borrowed from rsync.
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(merge 3dc0b7f0dc pw/wildmatch-fixes later to maint).
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* The index files can become corrupt under certain conditions when
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the split-index feature is in use, especially together with
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fsmonitor, which have been corrected.
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(merge 061dd722dc js/split-index-fixes later to maint).
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* Document what the pathname-looking strings in "rev-list --object"
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output are for and what they mean.
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(merge 15364d2a3c jk/document-rev-list-object-name later to maint).
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* Fix unnecessary truncation of generation numbers used in-core.
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(merge d3af1c193d ps/ahead-behind-truncation-fix later to maint).
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* Code clean-up around the use of the_repository.
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(merge 4a93b899c1 ab/remove-implicit-use-of-the-repository later to maint).
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* Consistently spell "Message-ID" as such, not "Message-Id".
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(merge ba4324c4e1 jc/spell-id-in-both-caps-in-message-id later to maint).
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* Correct use of an uninitialized structure member.
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(merge dc12ee77ab jx/cap-object-info-uninitialized-fix later to maint).
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* Tests had a few places where we ignored PERL_PATH and blindly used
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/usr/bin/perl, which have been corrected.
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(merge c1917156a0 jk/use-perl-path-consistently later to maint).
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* Documentation mark-up fix.
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(merge 78b6369e67 la/mfc-markup-fix later to maint).
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* Doc toolchain update to remove old workaround for AsciiDoc.
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(merge 8806120de6 fc/remove-header-workarounds-for-asciidoc later to maint).
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* The userdiff regexp patterns for various filetypes that are built
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into the system have been updated to avoid triggering regexp errors
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from UTF-8 aware regex engines.
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(merge be39144954 rs/userdiff-multibyte-regex later to maint).
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* The approxidate() API has been simplified by losing an extra
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function that did the same thing as another one.
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(merge 8a7f0b666f rs/remove-approxidate-relative later to maint).
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* Code clean-up to replace a hardcoded constant with a CPP macro.
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(merge c870de6502 rs/get-tar-commit-id-use-defined-const later to maint).
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* Doc build simplification.
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(merge 9a09ed3229 fc/doc-stop-using-manversion later to maint).
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* "git archive" run from a subdirectory mishandled attributes and
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paths outside the current directory.
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(merge 92b1dd1b9e rs/archive-from-subdirectory-fixes later to maint).
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* The code to parse capability list for v0 on-wire protocol fell into
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an infinite loop when a capability appears multiple times, which
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has been corrected.
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* Geometric repacking ("git repack --geometric=<n>") in a repository
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that borrows from an alternate object database had various corner
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case bugs, which have been corrected.
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(merge d85cd18777 ps/fix-geom-repack-with-alternates later to maint).
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* The "%GT" placeholder for the "--format" option of "git log" and
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friends caused BUG() to trigger on a commit signed with an unknown
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key, which has been corrected.
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(merge 7891e46585 jk/gpg-trust-level-fix later to maint).
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* The completion script used to use bare "read" without the "-r"
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option to read the contents of various state files, which risked
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getting confused with backslashes in them. This has been
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corrected.
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(merge 197152098a ek/completion-use-read-r-to-read-literally later to maint).
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* A small API fix to the ort merge strategy backend.
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(merge 000c4ceca7 en/ort-finalize-after-0-merges-fix later to maint).
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* The commit object parser has been taught to be a bit more lenient
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to parse timestamps on the author/committer line with a malformed
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author/committer ident.
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(merge 90ef0f14eb jk/parse-commit-with-malformed-ident later to maint).
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* Retitle a test script with an overly narrow name.
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(merge 8bb19c14fb ob/t3501-retitle later to maint).
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* Doc update to clarify how text and eol attributes interact to
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specify the end-of-line conversion.
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(merge 6696077ace ah/doc-attributes-text later to maint).
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* Gitk updates from GfW project.
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(merge 99e70f3077 js/gitk-fixes-from-gfw later to maint).
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* "git diff --dirstat" leaked memory, which has been plugged.
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(merge 83973981eb jc/dirstat-plug-leaks later to maint).
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* "git merge-tree" reads the basic configuration, which can be used
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by git forges to disable replace-refs feature.
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(merge b6551feadf ds/merge-tree-use-config later to maint).
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* A few bugs in the sequencer machinery that results in miscounting
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the steps have been corrected.
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(merge 170eea9750 js/rebase-count-fixes later to maint).
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* Other code cleanup, docfix, build fix, etc.
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(merge f7111175df as/doc-markup-fix later to maint).
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(merge 90ff7c9898 fc/test-aggregation-clean-up later to maint).
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(merge 9b0c7f308a jc/am-doc-refer-to-format-patch later to maint).
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(merge b10cbdac4c bb/unicode-width-table-15 later to maint).
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(merge 3457b50e8c ab/retire-scripted-add-p later to maint).
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(merge d52fcf493b ds/p2000-fix-grep-sparse later to maint).
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(merge ec063d2591 ss/hashmap-typofix later to maint).
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(merge 1aaed69d11 rs/archive-mtime later to maint).
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(merge 2da2cc9b28 ob/rollback-after-commit-lock-failure later to maint).
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(merge 54dbd0933b ob/sequencer-save-head-simplify later to maint).
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(merge a93cbe8d78 ar/test-cleanup-unused-file-creation later to maint).
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(merge cc48ddd937 jk/chainlint-fixes later to maint).
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(merge 4833b08426 ow/ref-format-remove-unused-member later to maint).
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(merge d0ea2ca1cf dw/doc-submittingpatches-grammofix later to maint).
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(merge fd72637423 ar/t2024-checkout-output-fix later to maint).
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(merge d45cbe3fe0 ob/sequencer-i18n-fix later to maint).
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(merge b734fe49fd ob/messages-capitalize-exception later to maint).
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(merge ad353d7e77 ma/gittutorial-fixes later to maint).
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(merge a5855fd8d4 ar/test-cleanup-unused-file-creation-part2 later to maint).
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(merge 0c5308af30 sd/doc-gitignore-and-rm-cached later to maint).
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(merge cbb83daeaf kh/doc-interpret-trailers-updates later to maint).
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(merge 3d77fbb664 ar/config-count-tests-updates later to maint).
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(merge b7cf25c8f4 jc/t9800-fix-use-of-show-s-raw later to maint).
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