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141 lines
2.8 KiB
Bash
141 lines
2.8 KiB
Bash
#!/bin/bash
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BPKG_REMOTE="${BPKG_REMOTE:-"https://raw.githubusercontent.com"}"
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BPKG_USER="${BPKG_USER:-"bpkg"}"
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## outut usage
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usage () {
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echo "usage: bpkg-install [-h|--help]"
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echo " or: bpkg-install <package>"
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echo " or: bpkg-install <user>/<package>"
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}
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## Install a bash package
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bpkg_install () {
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local pkg="${1}"
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local cwd="`pwd`"
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local user=""
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local name=""
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local url=""
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local uri=""
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local version=""
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local status=""
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local json=""
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declare -a local parts=()
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declare -a local scripts=()
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case "${pkg}" in
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-h|--help)
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usage
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return 0
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;;
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esac
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## ensure there is a package to install
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if [ -z "${pkg}" ]; then
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return 1
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fi
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## ensure remote is reachable
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{
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curl -s "${BPKG_REMOTE}"
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if [ "0" != "$?" ]; then
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return 1
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fi
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}
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## get version if available
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{
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OLDIFS="${IFS}"
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IFS="@"
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parts=(${pkg})
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IFS="${OLDIFS}"
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}
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if [ "1" = "${#parts[@]}" ]; then
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version="master"
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elif [ "2" = "${#parts[@]}" ]; then
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name="${parts[0]}"
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version="${parts[1]}"
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else
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echo >&2 "error: Error parsing package version"
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return 1
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fi
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## split by user name and repo
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{
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OLDIFS="${IFS}"
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IFS='/'
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parts=(${pkg})
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IFS="${OLDIFS}"
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}
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if [ "1" = "${#parts[@]}" ]; then
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user="${BPKG_USER}"
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name="${parts[0]}"
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elif [ "2" = "${#parts[@]}" ]; then
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user="${parts[0]}"
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name="${parts[1]}"
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else
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echo >&2 "error: Unable to determine package name"
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return 1
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fi
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## clean up name of weird trailing versions
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name=${name/@*//}
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## build uri portion
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uri="/${user}/${name}/${version}"
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## clean up extra slashes in uri
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uri=${uri/\/\///}
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## build url
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url="${BPKG_REMOTE}${uri}"
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## determine if `package.json' exists at url
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{
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status=$(curl -sL "${url}/package.json" -w '%{http_code}' -o /dev/null)
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if [ "0" != "$?" ] || (( status >= 400 )); then
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echo >&2 "error: Package doesn't exist"
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return 1
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fi
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}
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## read package.json
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json=$(curl -sL "${url}/package.json")
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## construct scripts array
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{
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scripts=$(echo -n $json | bpkg-json -b | grep 'scripts' | awk '{ print $2 }' | tr -d '"')
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OLDIFS="${IFS}"
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IFS=','
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scripts=($(echo ${scripts}))
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IFS="${OLDIFS}"
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}
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## get package name from `package.json'
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name="$(echo -n ${json} | bpkg-json -b | grep 'name' | awk '{ print $2 }' | tr -d '"')"
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if [ "${#scripts[@]}" -gt "0" ]; then
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## make `deps/' directory if possible
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mkdir -p "${cwd}/deps/${name}"
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## grab each script and place in deps directory
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for (( i = 0; i < ${#scripts[@]} ; ++i )); do
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(
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local script=${scripts[$i]}
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curl -sL "${url}/${script}" -o "${cwd}/deps/${name}/${script}"
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)
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done
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fi
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return 0
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}
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if [[ ${BASH_SOURCE[0]} != $0 ]]; then
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export -f bpkg_install
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else
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bpkg_install "${@}"
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exit $?
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fi
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