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84 lines
3.9 KiB
Plaintext
84 lines
3.9 KiB
Plaintext
Git v2.9.4 Release Notes
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========================
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Fixes since v2.9.3
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------------------
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* There are certain house-keeping tasks that need to be performed at
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the very beginning of any Git program, and programs that are not
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built-in commands had to do them exactly the same way as "git"
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potty does. It was easy to make mistakes in one-off standalone
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programs (like test helpers). A common "main()" function that
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calls cmd_main() of individual program has been introduced to
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make it harder to make mistakes.
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* "git merge" with renormalization did not work well with
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merge-recursive, due to "safer crlf" conversion kicking in when it
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shouldn't.
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* The reflog output format is documented better, and a new format
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--date=unix to report the seconds-since-epoch (without timezone)
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has been added.
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* "git push --force-with-lease" already had enough logic to allow
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ensuring that such a push results in creation of a ref (i.e. the
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receiving end did not have another push from sideways that would be
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discarded by our force-pushing), but didn't expose this possibility
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to the users. It does so now.
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* "import-tars" fast-import script (in contrib/) used to ignore a
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hardlink target and replaced it with an empty file, which has been
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corrected to record the same blob as the other file the hardlink is
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shared with.
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* "git mv dir non-existing-dir/" did not work in some environments
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the same way as existing mainstream platforms. The code now moves
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"dir" to "non-existing-dir", without relying on rename("A", "B/")
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that strips the trailing slash of '/'.
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* The "t/" hierarchy is prone to get an unusual pathname; "make test"
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has been taught to make sure they do not contain paths that cannot
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be checked out on Windows (and the mechanism can be reusable to
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catch pathnames that are not portable to other platforms as need
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arises).
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* When "git merge-recursive" works on history with many criss-cross
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merges in "verbose" mode, the names the command assigns to the
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virtual merge bases could have overwritten each other by unintended
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reuse of the same piece of memory.
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* "git checkout --detach <branch>" used to give the same advice
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message as that is issued when "git checkout <tag>" (or anything
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that is not a branch name) is given, but asking with "--detach" is
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an explicit enough sign that the user knows what is going on. The
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advice message has been squelched in this case.
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* "git difftool" by default ignores the error exit from the backend
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commands it spawns, because often they signal that they found
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differences by exiting with a non-zero status code just like "diff"
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does; the exit status codes 126 and above however are special in
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that they are used to signal that the command is not executable,
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does not exist, or killed by a signal. "git difftool" has been
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taught to notice these exit status codes.
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* On Windows, help.browser configuration variable used to be ignored,
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which has been corrected.
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* The "git -c var[=val] cmd" facility to append a configuration
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variable definition at the end of the search order was described in
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git(1) manual page, but not in git-config(1), which was more likely
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place for people to look for when they ask "can I make a one-shot
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override, and if so how?"
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* The tempfile (hence its user lockfile) API lets the caller to open
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a file descriptor to a temporary file, write into it and then
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finalize it by first closing the filehandle and then either
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removing or renaming the temporary file. When the process spawns a
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subprocess after obtaining the file descriptor, and if the
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subprocess has not exited when the attempt to remove or rename is
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made, the last step fails on Windows, because the subprocess has
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the file descriptor still open. Open tempfile with O_CLOEXEC flag
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to avoid this (on Windows, this is mapped to O_NOINHERIT).
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Also contains minor documentation updates and code clean-ups.
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