Zero dependencies task runner script.
#!/bin/bash -e
function task:install { ## Install dependencies
yarn install
}
function task:dev { ## Start development environment
yarn dev
}
function task:deploy { ## Deploy the app ## <env>
yarn deploy -- "$@"
}
function task:help { ## List available tasks
awk -v pad=25 'BEGIN {FS="(\\(\\))? ({ )?[#][#] ?"} /^function task:.*\{ [#][#] ?/ {sub("function task:", "", $1); printf "\033[36m%-"pad"s\033[0m %s\n", $1 " \033[32m" $3, $2}' "$0"
}
task:"${@:-help}"Save the script above as run. Then execute chmod +x run and you're ready to go! Just run ./run to see available tasks, ./run install to run the install task etc.
$ ./run
install Install dependencies
dev Start development environment
deploy <env> Deploy the app
help List available tasks
$ ./run install
yarn install v1.22.22
[1/4] 🔍 Resolving packages...
...Add the following to .zshrc or .bashrc depending on your shell:
alias run="./run"Now you can run run install, run dev, etc., instead of ./run install.
Create the completions directory if it doesn't exist:
mkdir -p ~/.oh-my-zsh/completions/Then create ~/.oh-my-zsh/completions/_run with the following content:
#compdef run
# https://github.com/wowu/run v0.1
_run() {
case $CURRENT in
2)
local -a tasks
local script="$words[1]"
if [[ -f "$script" ]]; then
tasks=(${(f)"$(
awk '
BEGIN { FS=" ?(\\(\\))? { ## ?" }
/^function task:.*\{ ## ?/ {
sub("function task:", "");
gsub(":", "\\:");
printf "%s:%s\n", $1, $2;
}
' "$script"
)"})
fi
_describe 'task' tasks
;;
*)
_files
;;
esac
}Now you can type in run <TAB> to auto-complete available tasks.
Inspired by Enrise/Taskfile, adriancooney/Taskfile, and Self-documenting Makefile.