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Merge pull request #5810 from okhowang/flock

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use python flock firstly
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Mike McQuaid 2019-02-26 07:54:13 +00:00 committed by GitHub
commit 716c979a5f
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1 changed files with 3 additions and 3 deletions
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6
Library/Homebrew/utils/lock.sh
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@ -45,12 +45,12 @@ _create_lock() {
if [[ -x "$ruby" ]] && "$ruby" -e "exit(RUBY_VERSION >= '1.8.7')"
then
"$ruby" -e "File.new($lock_fd).flock(File::LOCK_EX | File::LOCK_NB) || exit(1)"
elif [[ -x "$(type -P flock)" ]]
then
flock -n "$lock_fd"
elif [[ -x "$python" ]]
then
"$python" -c "import fcntl; fcntl.flock($lock_fd, fcntl.LOCK_EX | fcntl.LOCK_NB)"
elif [[ -x "$(type -P flock)" ]]
then
flock -n "$lock_fd"
else
onoe "Cannot create $name lock, please avoid running Homebrew in parallel."
fi