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env_parallel.bash: Fixed for bash #47483: env_parallel export --env only.
This commit is contained in:
Ole Tange
parent
85dfb3e96a
commit
8637d30bca
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@ -28,20 +28,77 @@
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# Supports env of 127426 bytes
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env_parallel() {
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# env_parallel.bash
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PARALLEL_ENV="$(alias;
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typeset -p |
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grep -vFf <(readonly) |
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grep -v 'declare .. (GROUPS|FUNCNAME|DIRSTACK|_|PIPESTATUS|USERNAME|BASH_[A-Z_]+) ';
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typeset -f)";
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# Copy shopt (so e.g. extended globbing works)
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parallel_shopt="$(shopt 2>/dev/null |
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perl -pe 's:\s+off:;: and s/^/shopt -u /;
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s:\s+on:;: and s/^/shopt -s /;')"
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export PARALLEL_ENV="$parallel_shopt$PARALLEL_ENV"
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unset parallel_shopt;
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`which parallel` "$@";
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unset PARALLEL_ENV;
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# env_parallel.bash
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local argv_ARRAY=()
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local grep_ARRAY=()
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local _par_i
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local _par_ARR
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# Get the --env variables if set
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while test $# -gt 0; do
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key="$1"
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case $key in
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--env)
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argv_ARRAY+=("$1")
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shift
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# split --env on ,
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IFS=',' read -ra _par_ARR <<< "$1"
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for _par_i in "${_par_ARR[@]}"; do
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grep_ARRAY+=("$_par_i")
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done
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;;
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esac
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argv_ARRAY+=("$1")
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shift # past argument or value
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done
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# This converts a b c to (a|b|c)
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local grep_REGEXP="$(perl -e 'print "(".(join "|",map { quotemeta $_ } @ARGV).")"' "${grep_ARRAY[@]}")"
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if [[ "$grep_REGEXP" = "()" ]] ; then
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# --env not set: Match everything
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grep_REGEXP="(.*)"
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fi
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# Grep alias names
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local _alias_NAMES="$(compgen -a |
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egrep "^${grep_REGEXP}\$")"
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local _list_alias_BODIES="alias $_alias_NAMES"
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if [[ "$_alias_NAMES" = "" ]] ; then
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# no aliases selected
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_list_alias_BODIES="true"
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fi
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# Grep function names
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local _function_NAMES="$(compgen -A function |
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egrep "^${grep_REGEXP}\$")"
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local _list_function_BODIES="typeset -f $_function_NAMES"
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if [[ "$_function_NAMES" = "" ]] ; then
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# no functions selected
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_list_function_BODIES="true"
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fi
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# Grep variable names
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local _variable_NAMES="$(compgen -A variable |
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egrep "^${grep_REGEXP}\$" |
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grep -vFf <(readonly) |
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egrep -v '^(BASHOPTS|BASHPID|EUID|GROUPS|FUNCNAME|DIRSTACK|_|PIPESTATUS|PPID|SHELLOPTS|UID|USERNAME|BASH_[A-Z_]+)$')"
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local _list_variable_VALUES="typeset -p $_variable_NAMES"
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if [[ "$_variable_NAMES" = "" ]] ; then
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# no variables selected
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_list_variable_VALUES="true"
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fi
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# Copy shopt (so e.g. extended globbing works)
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export PARALLEL_ENV="$(
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shopt 2>/dev/null |
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perl -pe 's:\s+off:;: and s/^/shopt -u /;
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s:\s+on:;: and s/^/shopt -s /;';
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$_list_alias_BODIES;
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$_list_variable_VALUES;
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$_list_function_BODIES)";
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`which parallel` "${argv_ARRAY[@]}";
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unset PARALLEL_ENV;
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}
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# Supports env of 127375 bytes
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@ -44,6 +44,9 @@ Same as GNU B<parallel>.
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=head2 Bash
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B<--env> is supported to export only the variable, alias, function, or
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array with the given name. Multiple B<--env>s can be given.
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Installation
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Put this in $HOME/.bashrc:
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@ -58,27 +61,35 @@ E.g. by doing:
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=item aliases
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alias myecho=echo
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env_parallel myecho ::: test
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env_parallel -S server myecho ::: test
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alias myecho='echo aliases'
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env_parallel myecho ::: work
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env_parallel -S server myecho ::: work
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env_parallel --env myecho myecho ::: work
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env_parallel --env myecho -S server myecho ::: work
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=item functions
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myfunc() { echo $*; }
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env_parallel myfunc ::: test
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env_parallel -S server myfunc ::: test
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myfunc() { echo functions $*; }
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env_parallel myfunc ::: work
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env_parallel -S server myfunc ::: work
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env_parallel --env myfunc myfunc ::: work
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env_parallel --env myfunc -S server myfunc ::: work
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=item variables
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myvar=test
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env_parallel echo '$myvar' ::: test
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env_parallel -S server echo '$myvar' ::: test
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myvar=variables
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env_parallel echo '$myvar' ::: work
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env_parallel -S server echo '$myvar' ::: work
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env_parallel --env myvar echo '$myvar' ::: work
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env_parallel --env myvar -S server echo '$myvar' ::: work
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=item arrays
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myarray=(foo bar baz)
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env_parallel echo '${myarray[{}]}' ::: 0 1 2
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env_parallel -S server echo '${myarray[{}]}' ::: 0 1 2
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myarray=(arrays work, too)
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env_parallel -k echo '${myarray[{}]}' ::: 0 1 2
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env_parallel -k -S server echo '${myarray[{}]}' ::: 0 1 2
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env_parallel -k --env myarray echo '${myarray[{}]}' ::: 0 1 2
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env_parallel -k --env myarray -S server echo '${myarray[{}]}' ::: 0 1 2
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=back
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