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https://github.com/pyenv/pyenv.git
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133 lines
3.2 KiB
Bash
Executable file
133 lines
3.2 KiB
Bash
Executable file
#!/usr/bin/env bash
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set -e
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status=0
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program="${0##*/}"
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PROGRAM="$(echo "$program" | tr a-z- A-Z_)"
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[ -n "$TMPDIR" ] || TMPDIR="/tmp"
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_STUB_PLAN="${PROGRAM}_STUB_PLAN"
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_STUB_RUN="${PROGRAM}_STUB_RUN"
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_STUB_INDEX="${PROGRAM}_STUB_INDEX"
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_STUB_RESULT="${PROGRAM}_STUB_RESULT"
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_STUB_END="${PROGRAM}_STUB_END"
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_STUB_LOG="${PROGRAM}_STUB_LOG"
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[ -n "${!_STUB_LOG}" ] || eval "${_STUB_LOG}"="${TMPDIR}/${program}-stub-log"
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if test -z "${!_STUB_END}"; then echo "$program" "$@" >>"${!_STUB_LOG}"; fi
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[ -e "${!_STUB_PLAN}" ] || exit 1
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[ -n "${!_STUB_RUN}" ] || eval "${_STUB_RUN}"="${TMPDIR}/${program}-stub-run"
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# Initialize or load the stub run information.
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eval "${_STUB_INDEX}"=1
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eval "${_STUB_RESULT}"=0
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if test -e "${!_STUB_RUN}"; then source "${!_STUB_RUN}"; fi
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# Loop over each line in the plan.
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index=0
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while IFS= read -r line; do
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index=$(($index + 1))
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if [ -z "${!_STUB_END}" ] && [ $index -eq "${!_STUB_INDEX}" ]; then
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# We found the plan line we're interested in.
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# Start off by assuming success.
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result=0
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# Split the line into an array of arguments to
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# match and a command to run to produce output.
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command=" $line"
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if [ "$command" != "${command/ : }" ]; then
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patterns="${command%% : *}"
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command="${command#* : }"
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fi
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# Naively split patterns by whitespace for now.
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# In the future, use a sed script to split while
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# respecting quoting.
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set -f
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patterns=($patterns)
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set +f
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arguments=("$@")
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# Match the expected argument patterns to actual
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# arguments.
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for (( i=0; i<${#patterns[@]}; i++ )); do
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pattern="${patterns[$i]}"
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argument="${arguments[$i]}"
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case "$argument" in
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$pattern ) ;;
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* ) result=1 ;;
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esac
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done
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# If the arguments matched, evaluate the command
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# in a subshell. Otherwise, log the failure.
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if [ $result -eq 0 ] ; then
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set +e
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( eval "$command" )
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status="$?"
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set -e
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else
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eval "${_STUB_RESULT}"=1
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fi
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fi
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done < "${!_STUB_PLAN}"
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if [ -n "${!_STUB_END}" ]; then
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# If the number of lines in the plan is larger than
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# the requested index, we failed.
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if [ $index -ge "${!_STUB_INDEX}" ]; then
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eval "${_STUB_RESULT}"=1
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{
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echo "index: $index; stub index: ${!_STUB_INDEX}"
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echo "plan:"
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cat "${!_STUB_PLAN}"
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echo "run:"
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cat "${!_STUB_RUN}"
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echo "log:"
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cat "${!_STUB_LOG}"
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} >&2
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fi
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if [ "${!_STUB_RESULT}" -ne 0 ]; then
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{
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echo "index: $index; stub index: ${!_STUB_INDEX}"
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echo "plan:"
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cat "${!_STUB_PLAN}" || true
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echo "run:"
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cat "${!_STUB_RUN}" || true
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echo "log:"
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cat "${!_STUB_LOG}" || true
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} >&2
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fi
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# Clean up the run file.
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rm -f "${!_STUB_RUN}"
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rm -f "${!_STUB_LOG}"
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# Clean up the run file.
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rm -f "${!_STUB_RUN}"
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rm -f "${!_STUB_LOG}"
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# Return the result.
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exit "${!_STUB_RESULT}"
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else
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# If the requested index is larger than the number
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# of lines in the plan file, we failed.
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if [ "${!_STUB_INDEX}" -gt $index ]; then
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eval "${_STUB_RESULT}"=1
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fi
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# Write out the run information.
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{ echo "${_STUB_INDEX}=$((${!_STUB_INDEX} + 1))"
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echo "${_STUB_RESULT}=${!_STUB_RESULT}"
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} > "${!_STUB_RUN}"
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exit "$status"
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fi
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