256 lines
9.5 KiB
Plaintext
256 lines
9.5 KiB
Plaintext
Git v2.39 Release Notes
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=======================
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UI, Workflows & Features
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------------------------
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* "git grep" learned to expand the sparse-index more lazily and on
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demand in a sparse checkout.
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* By default, use of fsmonitor on a repository on networked
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filesystem is disabled. Add knobs to make it workable on macOS.
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* After checking out a "branch" that is a symbolic-ref that points at
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another branch, "git symbolic-ref HEAD" reports the underlying
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branch, not the symbolic-ref the user gave checkout as argument.
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The command learned the "--no-recurse" option to stop after
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dereferencing a symbolic-ref only once.
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* "git branch --edit-description @{-1}" is now a way to edit branch
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description of the branch you were on before switching to the
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current branch.
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* "git merge-tree --stdin" is a new way to request a series of merges
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and report the merge results.
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* "git shortlog" learned to group by the "format" string.
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* A new "--include-whitespace" option is added to "git patch-id", and
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existing bugs in the internal patch-id logic that did not match
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what "git patch-id" produces have been corrected.
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* Enable gc.cruftpacks by default for those who opt into
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feature.experimental setting.
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Performance, Internal Implementation, Development Support etc.
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--------------------------------------------------------------
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* With a bit of header twiddling, use the native regexp library on
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macOS instead of the compat/ one.
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* Prepare for GNU [ef]grep that throw warning of their uses.
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* Sources related to fuzz testing have been moved down to their own
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directory.
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* Most credential helpers ignored unknown entries in a credential
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description, but a few died upon seeing them. The latter were
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taught to ignore them, too
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* "scalar unregister" in a repository that is already been
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unregistered reported an error.
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* Remove error detection from a function that fetches from promisor
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remotes, and make it die when such a fetch fails to bring all the
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requested objects, to give an early failure to various operations.
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* Update CodingGuidelines to clarify what features to use and avoid
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in C99.
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* Avoid false-positive from LSan whose assumption may be broken with
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higher optimization levels.
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* Enable address and undefined sanitizer tasks at GitHub Actions CI.
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* More UNUSED annotation to help using -Wunused option with the
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compiler.
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(merge 4b992f0a24 jk/unused-anno-more later to maint).
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* Rewrite a deep recursion in the skipping negotiator to use a loop
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with on-heap prio queue to avoid stack wastage.
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* Add documentation for message IDs in fsck error messages.
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* Define the logical elements of a "bundle list", data structure to
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store them in-core, format to transfer them, and code to parse
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them.
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* The role the security mailing list plays in an embargoed release
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has been documented.
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* Two new facilities, "timer" and "counter", are introduced to the
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trace2 API.
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* Code simplification by using strvec_pushf() instead of building an
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argument in a separate strbuf.
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* Make sure generated dependency file is stably sorted to help
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developers debugging their build issues.
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* The glossary entries for "commit-graph file" and "reachability
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bitmap" have been added.
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* Various tests exercising the transfer.credentialsInUrl
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configuration are taught to avoid making requests which require
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resolving localhost to reduce CI-flakiness.
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* A redundant diagnostic message is dropped from test_path_is_missing().
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* Simplify the run-command API.
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* Update the actions/github-script dependency in CI to avoid a
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deprecation warning.
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* Progress on being able to initialize a rev_info struct with a
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macro.
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* Add trace2 counters to the region to clear skip worktree bits in a
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sparse checkout.
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* Modernize test script to avoid "test -f" and friends.
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Fixes since v2.38
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-----------------
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* The codepath that reads from the index v4 had unaligned memory
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accesses, which has been corrected.
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* Fix messages incorrectly marked for translation.
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* "git fsck" failed to release contents of tree objects already used
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from the memory, which has been fixed.
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* "git clone" did not like to see the "--bare" and the "--origin"
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options used together without a good reason.
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* "git remote rename" failed to rename a remote without fetch
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refspec, which has been corrected.
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* Documentation on various Boolean GIT_* environment variables have
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been clarified.
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* "git rebase -i" can mistakenly attempt to apply a fixup to a commit
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itself, which has been corrected.
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* "git multi-pack-index repack/expire" used to repack unreachable
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cruft into a new pack, which have been corrected.
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* In read-only repositories, "git merge-tree" tried to come up with a
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merge result tree object, which it failed (which is not wrong) and
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led to a segfault (which is bad), which has been corrected.
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* Force C locale while running tests around httpd to make sure we can
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find expected error messages in the log.
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* Fix a logic in "mailinfo -b" that miscomputed the length of a
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substring, which lead to an out-of-bounds access.
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* The codepath to sign learned to report errors when it fails to read
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from "ssh-keygen".
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* Code clean-up that results in plugging a leak.
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* "GIT_EDITOR=: git branch --edit-description" resulted in failure,
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which has been corrected.
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* The code to clean temporary object directories (used for
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quarantine) tried to remove them inside its signal handler, which
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was a no-no.
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* Update comment in the Makefile about the RUNTIME_PREFIX config knob.
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* Clarify that "the sentence after <area>: prefix does not begin with
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a capital letter" rule applies only to the commit title.
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* "git branch --edit-description" on an unborh branch misleadingly
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said that no such branch exists, which has been corrected.
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* Work around older clang that warns against C99 zero initialization
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syntax for struct.
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* Giving "--invert-grep" and "--all-match" without "--grep" to the
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"git log" command resulted in an attempt to access grep pattern
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expression structure that has not been allocated, which has been
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corrected.
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(merge db84376f98 ab/grep-simplify-extended-expression later to maint).
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* "git diff rev^!" did not show combined diff to go to the rev from
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its parents.
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(merge a79c6b6081 rs/diff-caret-bang-with-parents later to maint).
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* Allow configuration files in "protected" scopes to include other
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configuration files.
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(merge ecec57b3c9 gc/bare-repo-discovery later to maint).
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* Give a bit more diversity to macOS CI by using sha1dc in one of the
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jobs (the other one tests Apple Common Crypto).
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(merge 1ad5c3df35 jc/ci-osx-with-sha1dc later to maint).
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* A bugfix with tracing support in midx codepath
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(merge e9c3839944 tb/midx-bitmap-selection-fix later to maint).
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* When geometric repacking feature is in use together with the
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--pack-kept-objects option, we lost packs marked with .keep files.
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(merge 197443e80a tb/save-keep-pack-during-geometric-repack later to maint).
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* Move a global variable added as a hack during regression fixes to
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its proper place in the API.
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(merge 0b0ab95f17 ab/run-hook-api-cleanup later to maint).
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* Update to build procedure with VS using CMake/CTest.
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(merge c858750b41 js/cmake-updates later to maint).
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* The short-help text shown by "git cmd -h" and the synopsis text
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shown at the beginning of "git help cmd" have been made more
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consistent.
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* When creating a multi-pack bitmap, remove per-pack bitmap files
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unconditionally as they will never be consulted.
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(merge 55d902cd61 tb/remove-unused-pack-bitmap later to maint).
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* Fix a longstanding syntax error in Git.pm error codepath.
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* "git diff --stat" etc. were invented back when everything was ASCII
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and strlen() was a way to measure the display width of a string;
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adjust them to compute the display width assuming UTF-8 pathnames.
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(merge ce8529b2bb tb/diffstat-with-utf8-strwidth later to maint).
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* "git branch --edit-description" can exit with status -1 which is
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not a good practice; it learned to use 1 as everybody else instead.
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* "git apply" limits its input to a bit less than 1 GiB.
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* Merging a branch with directory renames into a branch that changes
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the directory to a symlink was mishandled by the ort merge
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strategy, which has been corrected.
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* A bugfix to "git subtree" in its split and merge features.
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* Fix some bugs in the reflog messages when rebasing and changes the
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reflog messages of "rebase --apply" to match "rebase --merge" with
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the aim of making the reflog easier to parse.
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* "git rebase --keep-base" used to discard the commits that are
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already cherry-picked to the upstream, even when "keep-base" meant
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that the base, on top of which the history is being rebuilt, does
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not yet include these cherry-picked commits. The --keep-base
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option now implies --reapply-cherry-picks and --no-fork-point
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options.
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* The way "git repack" creared temporary files when it received a
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signal was prone to deadlocking, which has been corrected.
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* Various tests exercising the transfer.credentialsInUrl
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configuration are taught to avoid making requests which require
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resolving localhost to reduce CI-flakiness.
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* The adjust_shared_perm() helper function learned to refrain from
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setting the "g+s" bit on directories when it is not necessary.
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* "git archive" mistakenly complained twice about a missing
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executable, which has been corrected.
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* Other code cleanup, docfix, build fix, etc.
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(merge 413bc6d20a ds/cmd-main-reorder later to maint).
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(merge 8d2863e4ed nw/t1002-cleanup later to maint).
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