NBash

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#!/bin/sh
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#
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# An example hook script to verify what is about to be committed.
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# Called by "git commit" with no arguments.  The hook should
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# exit with non-zero status after issuing an appropriate message if
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# it wants to stop the commit.
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#
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# To enable this hook, rename this file to "pre-commit".
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if git rev-parse --verify HEAD >/dev/null 2>&1
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then
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	against=HEAD
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else
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	# Initial commit: diff against an empty tree object
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	against=$(git hash-object -t tree /dev/null)
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fi
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# If you want to allow non-ASCII filenames set this variable to true.
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allownonascii=$(git config --type=bool hooks.allownonascii)
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# Redirect output to stderr.
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exec 1>&2
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# Cross platform projects tend to avoid non-ASCII filenames; prevent
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# them from being added to the repository. We exploit the fact that the
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# printable range starts at the space character and ends with tilde.
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if [ "$allownonascii" != "true" ] &&
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	# Note that the use of brackets around a tr range is ok here, (it's
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	# even required, for portability to Solaris 10's /usr/bin/tr), since
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	# the square bracket bytes happen to fall in the designated range.
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	test $(git diff --cached --name-only --diff-filter=A -z $against |
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	  LC_ALL=C tr -d '[ -~]\0' | wc -c) != 0
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then
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	cat <<\EOF
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Error: Attempt to add a non-ASCII file name.
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This can cause problems if you want to work with people on other platforms.
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To be portable it is advisable to rename the file.
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If you know what you are doing you can disable this check using:
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  git config hooks.allownonascii true
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EOF
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	exit 1
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fi
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# If there are whitespace errors, print the offending file names and fail.
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git diff-index --check --cached $against -- || exit
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# When invoked by gear-commit, ensure that .gear/tags/ is up to date.
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if [ -n "${GEAR_COMMIT-}" ]; then
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	a= gear-update-tag --verify
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fi
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