298 lines
9.4 KiB
Bash
Executable File
298 lines
9.4 KiB
Bash
Executable File
#!/usr/bin/env bash
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## source: https://github.com/kdabir/has
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## To add more tools, search for "__detect" function in this file
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## Important so that version is not extracted for failed commands (not found)
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set -o pipefail
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readonly BINARY_NAME="has"
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readonly VERSION="v1.5.0"
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## constants - symbols for success failure
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if [[ -z $TERM ]]; then
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$TERM="xterm"
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fi
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readonly txtreset="$(tput -T $TERM sgr0)"
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readonly txtbold="$(tput -T $TERM bold)"
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readonly txtblack="$(tput -T $TERM setaf 0)"
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readonly txtred="$(tput -T $TERM setaf 1)"
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readonly txtgreen="$(tput -T $TERM setaf 2)"
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readonly txtyellow="$(tput -T $TERM setaf 3)"
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readonly txtblue="$(tput -T $TERM setaf 4)"
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readonly txtpurple="$(tput -T $TERM setaf 5)"
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readonly txtcyan="$(tput -T $TERM setaf 6)"
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readonly txtwhite="$(tput -T $TERM setaf 7)"
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# unicode "✗"
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readonly fancyx='\342\234\227'
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# unicode "✓"
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readonly checkmark='\342\234\223'
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# PASS="\e[1m\e[38;5;2m✔\e[m"
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# FAIL="\e[1m\e[38;5;1m✘\e[m"
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readonly PASS="${txtbold}${txtgreen}${checkmark}${txtreset}"
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readonly FAIL="${txtbold}${txtred}${fancyx}${txtreset}"
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## These variables are used to keep track of passed and failed commands
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OK=0
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KO=0
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## Regex to extract simple version - extracts numeric sem-ver style versions
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REGEX_SIMPLE_VERSION="([[:digit:]]+\.?){2,3}"
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## name of RC file that can contain list of tools to be checked
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RC_FILE=".hasrc"
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# try to extract version by executing "${1}" with "${2}" arg
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# command name to be executed is dynamically passed to this function as ${1}
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# arg to ${1} is passed in ${2}
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__dynamic_detect(){
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cmd="${1}"
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params="${2}"
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version=$( eval "${cmd}" "${params}" "2>&1" | grep -Eo "${REGEX_SIMPLE_VERSION}" | head -1)
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status=$?
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}
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# commands that use `--version` flag
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__dynamic_detect--version(){
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__dynamic_detect "${1}" "--version"
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}
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# commands that use `-version` flag
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__dynamic_detect-version(){
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__dynamic_detect "${1}" "-version"
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}
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# commands that use `-v` flag
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__dynamic_detect-v(){
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__dynamic_detect "${1}" "-v"
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}
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# commands that use `-V` flag
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__dynamic_detect-V(){
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__dynamic_detect "${1}" "-V"
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}
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# commands that use `version` argument
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__dynamic_detect-arg_version(){
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__dynamic_detect "${1}" "version"
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}
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## the main function
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__detect(){
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name="${1}"
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# setup aliases - maps commonly used name to exact command name
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case ${name} in
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golang ) command="go" ;;
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jre ) command="java" ;;
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jdk ) command="javac" ;;
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nodejs ) command="node" ;;
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goreplay ) command="gor" ;;
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httpie ) command="http" ;;
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homebrew ) command="brew" ;;
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awsebcli ) command="eb" ;;
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awscli ) command="aws" ;;
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postgresql ) command="psql" ;;
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*coreutils|linux*utils) command="gnu_coreutils" ;;
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* ) command=${name} ;;
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esac
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case "${command}" in
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# commands that need --version flag
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## Shells
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bash|zsh) __dynamic_detect--version "${command}" ;;
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## VCS
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git|hg|svn|bzr) __dynamic_detect--version "${command}" ;;
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## Http
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curl|wget|http) __dynamic_detect--version "${command}" ;;
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## Editors
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vim|emacs|nano) __dynamic_detect--version "${command}" ;;
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subl|code) __dynamic_detect--version "${command}" ;;
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## File system search and navigation
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jq) __dynamic_detect--version "${command}" ;;
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ag|ack|rg) __dynamic_detect--version "${command}" ;;
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tree|autojump) __dynamic_detect--version "${command}" ;;
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## package mangers
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apt|apt-get|aptitude) __dynamic_detect--version "${command}" ;;
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brew) __dynamic_detect--version "${command}" ;;
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## System tools
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sed|awk|grep|file|sudo) __dynamic_detect--version "${command}" ;;
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gzip|xz|unar|bzip2) __dynamic_detect--version "${command}" ;;
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tar|pv) __dynamic_detect--version "${command}" ;;
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# Container runtimes
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docker|podman) __dynamic_detect--version "${command}" ;;
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## Database CLI
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psql) __dynamic_detect--version "${command}" ;;
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## Scripting Language / runtime
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ruby|R|python|python3) __dynamic_detect--version "${command}" ;;
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perl|perl6|php|php5) __dynamic_detect--version "${command}" ;;
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groovy|node) __dynamic_detect--version "${command}" ;;
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## Compile
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gcc|make|bats) __dynamic_detect--version "${command}" ;;
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## Build tools
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lein|gradle|mvn) __dynamic_detect--version "${command}" ;;
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grunt|brunch) __dynamic_detect--version "${command}" ;;
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gem|rake|bundle) __dynamic_detect--version "${command}" ;;
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npm|yarn) __dynamic_detect--version "${command}" ;;
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## Cloud Tools
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aws|eb|sls|gcloud) __dynamic_detect--version "${command}" ;;
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heroku) __dynamic_detect--version "${command}" ;;
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netlify) __dynamic_detect--version "${command}" ;;
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netlifyctl) __dynamic_detect-arg_version "${command}" ;;
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## Hashicorp Tools
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terraform|packer) __dynamic_detect--version "${command}" ;;
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vagrant|consul) __dynamic_detect--version "${command}" ;;
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nomad) __dynamic_detect--version "${command}" ;;
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# commands that need -v flag
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unzip) __dynamic_detect-v "${command}" ;;
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# commands that need -V flag
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ab) __dynamic_detect-V "${command}" ;;
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# commands that need -version flag
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ant) __dynamic_detect-version "${command}" ;;
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java|javac|scala|kotlin) __dynamic_detect-version "${command}" ;;
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# commands that need version arg
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go|hugo) __dynamic_detect-arg_version "${command}" ;;
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## Example of commands that need custom processing
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## TODO cleanup, currently need to add extra space in regex, otherwise the time gets selected
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gulp)
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version=$( gulp --version 2>&1| grep -Eo " ${REGEX_SIMPLE_VERSION}" | head -1)
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status=$?
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;;
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## gor returns version but does not return normal status code, hence needs custom processing
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gor)
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version=$( gor version 2>&1 | grep -Eo "${REGEX_SIMPLE_VERSION}" | head -1)
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if [ $? -eq 1 ]; then status=0; else status=127; fi
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;;
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sbt)
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version=$( sbt about 2>&1 | grep -Eo "([[:digit:]]{1,4}\.){2}[[:digit:]]{1,4}" | head -1)
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status=$?
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;;
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## use 'readlink' to test for GNU coreutils
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# readlink (GNU coreutils) 8.28
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gnu_coreutils) __dynamic_detect--version readlink ;;
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## hub uses --version but version string is on second line, or third if HUB_VERBOSE set
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hub)
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version=$( HUB_VERBOSE='' hub --version 2>&1 | sed -n 2p | grep -Eo "${REGEX_SIMPLE_VERSION}" | head -1)
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status=$?
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;;
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## zip uses -v but version string is on second line
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zip)
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version=$( zip -v 2>&1 | sed -n 2p | grep -Eo "${REGEX_SIMPLE_VERSION}" | head -1)
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status=$?
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;;
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has)
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version=$( has 2>&1 | grep -Eo "${REGEX_SIMPLE_VERSION}" | head -1)
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status=$?
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;;
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*)
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## Can allow dynamic checking here, i.e. checking commands that are not listed above
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if [[ "${HAS_ALLOW_UNSAFE}" == "y" ]]; then
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__dynamic_detect--version "${command}"
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## fallback checking based on status!=127 (127 means command not found)
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## TODO can check other type of supported version-checks if status was not 127
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else
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## -1 is special way to tell command is not supported/whitelisted by `has`
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status="-1"
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fi
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;;
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esac
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if [ "$status" -eq "-1" ]; then ## When unsafe processing is not allowed, the -1 signifies
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printf '%b %s not understood\n' "${FAIL}" "${command}" > "$OUTPUT"
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KO=$(( KO+1 ))
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elif [ ${status} -eq 127 ]; then ## command not installed
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printf '%b %s\n' "${FAIL}" "${command}" > "$OUTPUT"
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KO=$(( KO+1 ))
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elif [ ${status} -eq 0 ] || [ ${status} -eq 141 ]; then ## successfully executed
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printf "%b %s %b\n" "${PASS}" "${command}" "${txtbold}${txtyellow}${version}${txtreset}" > "$OUTPUT"
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OK=$(( OK+1 ))
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else ## as long as its not 127, command is there, but we might not have been able to extract version
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printf '%b %s\n' "${PASS}" "${command}" > "$OUTPUT"
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OK=$(( OK+1 ))
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fi
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} #end __detect
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OPTIND=1
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OUTPUT=/dev/stdout
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while getopts "q" opt; do
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case "$opt" in
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q) QUIET="true"
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OUTPUT=/dev/null
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;;
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esac
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done
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shift $((OPTIND-1))
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if [ -s "${RC_FILE}" ]; then
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HASRC="true"
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fi
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# if HASRC is not set AND no arguments passed to script
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if [[ -z "${HASRC}" ]] && [ "$#" -eq 0 ]; then
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# print help
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printf '%s %s\n' "${BINARY_NAME}" "${VERSION}" > "$OUTPUT"
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printf 'USAGE:\t %s [-q] <command-names>..\n' "${BINARY_NAME}" > "$OUTPUT"
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printf 'EXAMPLE: %s git curl node\n' "${BINARY_NAME}" > "$OUTPUT"
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else
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# for each cli-arg
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for cmd in "$@"; do
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__detect "${cmd}"
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done
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## display found / total
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# echo ${OK} / $(($OK+$KO))
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## if HASRC has been set
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if [[ -n "${HASRC}" ]]; then
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## for all
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while read -r line; do
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__detect "${line}"
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done <<<"$( grep -Ev "^\s*(#|$)" "${RC_FILE}" )"
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fi
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## max status code that can be returned
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MAX_STATUS_CODE=126
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if [[ "${KO}" -gt "${MAX_STATUS_CODE}" ]]; then
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exit "${MAX_STATUS_CODE}"
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else
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exit "${KO}"
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fi
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fi
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