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Bash command in ubuntu to create a bare git repo and post commit hooks to start node js with pm2
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| #!/bin/bash | |
| # USAGE: | |
| # command example.com [OPTIONS] | |
| # | |
| # args desc | |
| # example.com the domain name | |
| # | |
| # options args desc | |
| # --app-name short-app-name required if --pm2-start is yes | |
| # --domain-name domain-name | |
| # --npm-install yes|no include npm install script in post hooks or not | |
| # --npm-build yes|no include npm run build in post hooks or not | |
| # --pm2-start yes|no include pm2 start script in post hooks or not | |
| # -p --port 3000 required if --pm2-start option is yes | |
| # -? show this help | |
| # -h --help show this help | |
| # example: | |
| # > command example.com --npm-install yes --pm2-start no | |
| # | |
| # or | |
| # > command example.com --pm2-start=yes --app-name=something --port 3000 | |
| # | |
| # or | |
| # > command --domain-name=example.com --npm-install no | |
| # ## VARIABLES | |
| domainName= | |
| appName= | |
| isUseNPM= | |
| isUseNPMBuild= | |
| isUsePM2= | |
| port= | |
| gitDir= | |
| gitWorkTreeDir= | |
| postHooksFile= | |
| postHooksScript= | |
| pm2ConfigFile= | |
| pm2ConfigScript= | |
| # exit and show error | |
| function Die() { | |
| echo "$1\n" >&2 | |
| printf "$s\n" "$1" >&2 | |
| exit 1 | |
| } | |
| # show usage | |
| function ShowHelp() { | |
| cat <<-EOF | |
| Usage for $0: | |
| command example.com [OPTIONS] | |
| args desc | |
| example.com the domain name | |
| options args desc | |
| --app-name short-app-name required if --pm2-start is yes | |
| --domain-name domain-name | |
| --npm-install yes|no include npm install script in post hooks or not | |
| --npm-build yes|no include npm run build in post hooks or not | |
| --pm2-start yes|no include pm2 start script in post hooks or not | |
| -p --port 3000 required if --pm2-start option is yes | |
| -? show this help | |
| -h --help show this help | |
| example: | |
| > command example.com --npm-install yes --npm-build yes --pm2-start no | |
| or | |
| > command example.com --pm2-start=yes --app-name=something --port 3000 | |
| or | |
| > command --domain-name=example.com --npm-install no | |
| EOF | |
| } | |
| # ## first argument | |
| if [ "$1" ] && [[ "$1" != -* ]]; then # if first arg exist and not starts with -, assign domain name | |
| domainName=$1 | |
| shift | |
| fi | |
| # ## option argument | |
| if [ $# -gt 0 ]; then | |
| while [ "$1" ]; do | |
| case $1 in | |
| --app-name) | |
| # set app name | |
| # if argument exist, set app name, else ask user input | |
| if [ "$2" ]; then | |
| if [[ "$2" == -* ]]; then | |
| Die "Error: argument cannot start with \"-\" for option \"$1\"" | |
| else | |
| appName=$2 | |
| shift 2 | |
| fi | |
| else | |
| Die "Error: argument required for \"$1\" option" | |
| fi | |
| ;; | |
| --app-name=?*) | |
| # get argument after "=" sign | |
| appName=${1#*=} | |
| shift | |
| ;; | |
| --app-name=) | |
| # empty args | |
| Die "Error: argument required for \"$1\" option" | |
| ;; | |
| --domain-name) | |
| # set domain name | |
| # if domain name is not null | |
| if [ "$domainName" ]; then | |
| echo "Warning: redeclared domain name using \"$1\" option" | |
| fi | |
| if [ "$2" ]; then | |
| if [[ "$2" == -* ]]; then | |
| Die "Error: argument cannot start with \"-\" for option \"$1\"" | |
| else | |
| domainName=$2 | |
| shift 2 | |
| fi | |
| else | |
| Die "Error: argument required for \"$1\" option" | |
| fi | |
| ;; | |
| --domain-name=?*) | |
| # get argument after "=" sign | |
| domainName=${1#*=} | |
| shift | |
| ;; | |
| --domain-name=) | |
| # empty args | |
| Die "Error: argument required for \"$1\" option" | |
| ;; | |
| --npm-install) | |
| # include or exclude npm install | |
| echo "npm install case" | |
| [[ "$2" == -* ]] && echo "ok" | |
| if [ "$2" ]; then | |
| if [[ "$2" == -* ]]; then | |
| Die "Error: argument cannot start with \"-\" for option \"$1\"" | |
| else | |
| if [ "$2" = "yes" ]; then | |
| isUseNPM="include npm" | |
| elif [ "$2" = "no" ]; then | |
| isUseNPM="exclude npm" | |
| fi | |
| shift 2 | |
| fi | |
| else | |
| Die "Error: argument required for \"$1\" option" | |
| fi | |
| ;; | |
| --npm-install=?*) | |
| # get argument after "=" sign | |
| if [ "${1#*=}" = "yes" ]; then | |
| isUseNPM="include npm" | |
| elif [ "${1#*=}" = "no" ]; then | |
| isUseNPM="exclude npm" | |
| fi | |
| shift | |
| ;; | |
| --npm-install=) | |
| # empty args | |
| Die "Error: argument required for \"$1\" option" | |
| ;; | |
| --npm-build) | |
| # include or exclude npm run build | |
| echo "npm run build case" | |
| [[ "$2" == -* ]] && echo "ok" | |
| if [ "$2" ]; then | |
| if [[ "$2" == -* ]]; then | |
| Die "Error: argument cannot start with \"-\" for option \"$1\"" | |
| else | |
| if [ "$2" = "yes" ]; then | |
| isUseNPMBuild="include npm run build" | |
| elif [ "$2" = "no" ]; then | |
| isUseNPMBuild="exclude npm run build" | |
| fi | |
| shift 2 | |
| fi | |
| else | |
| Die "Error: argument required for \"$1\" option" | |
| fi | |
| ;; | |
| --npm-build=?*) | |
| # get argument after "=" sign | |
| if [ "${1#*=}" = "yes" ]; then | |
| isUseNPMBuild="include npm run build" | |
| elif [ "${1#*=}" = "no" ]; then | |
| isUseNPMBuild="exclude npm run build" | |
| fi | |
| shift | |
| ;; | |
| --npm-build=) | |
| # empty args | |
| Die "Error: argument required for \"$1\" option" | |
| ;; | |
| --pm2-start) | |
| # include or exclude pm2 start script | |
| if [ "$2" ]; then | |
| if [[ "$2" == -* ]]; then | |
| Die "Error: argument cannot start with \"-\" for option \"$1\"" | |
| else | |
| if [ "$2" = "yes" ]; then | |
| isUsePM2="include pm2" | |
| elif [ "$2" = "no" ]; then | |
| isUsePM2="exclude pm2" | |
| fi | |
| shift 2 | |
| fi | |
| else | |
| Die "Error: argument required for \"$1\" option" | |
| fi | |
| ;; | |
| --pm2-start=?*) | |
| # get argument after "=" sign | |
| if [ "${1#*=}" = "yes" ]; then | |
| isUsePM2="include pm2" | |
| elif [ "${1#*=}" = "no" ]; then | |
| isUsePM2="exclude pm2" | |
| fi | |
| shift | |
| ;; | |
| --pm2-start=) | |
| # empty args | |
| Die "Error: argument required for \"$1\" option" | |
| ;; | |
| --port) | |
| # set port in pm2 config | |
| if [ "$2" ]; then | |
| if [[ "$2" == -* ]]; then | |
| Die "Error: argument cannot start with \"-\" for option \"$1\"" | |
| else | |
| port=$2 | |
| shift 2 | |
| fi | |
| else | |
| Die "Error: argument required for \"$1\" option" | |
| fi | |
| ;; | |
| --port=?*) | |
| # get argument after "=" sign | |
| port=${1#*=} | |
| shift | |
| ;; | |
| --port=) | |
| # empty args | |
| Die "Error: argument required for \"$1\" option" | |
| ;; | |
| -h | -\? | --help) | |
| # display usage | |
| ShowHelp | |
| shift | |
| exit | |
| ;; | |
| *) | |
| # unrecognized argument | |
| Die "Error: \"$1\" is not recognized as an argument or option" | |
| ;; | |
| esac | |
| done | |
| fi | |
| # ## check required user input when argument not specified | |
| # ## and set variables | |
| while [ ! "$domainName" ]; do | |
| read -p "*Provide domain name: (domain.com) " domainName | |
| done | |
| if [ "$domainName" ]; then | |
| gitDir=${HOME}/repo/node/${domainName}.git | |
| gitWorkTreeDir=${HOME}/source/node/${domainName} | |
| postHooksFile=${gitDir}/hooks/post-receive | |
| postHooksScript=$( | |
| cat <<-EOF | |
| #!/bin/sh | |
| git --work-tree=$gitWorkTreeDir --git-dir=$gitDir checkout -f main | |
| EOF | |
| ) | |
| fi | |
| while [ ! "$isUseNPM" ]; do | |
| read -p "*Include npm install? (yes/no) " isUseNPM | |
| if [ "$isUseNPM" = "yes" ]; then | |
| isUseNPM="include npm" | |
| elif [ "$isUseNPM" = "no" ]; then | |
| isUseNPM="exclude npm" | |
| else | |
| isUseNPM= | |
| fi | |
| done | |
| if [ "$isUseNPM" = "include npm" ]; then | |
| # append npm script to post receive hook | |
| postHooksScript+=$( | |
| cat <<-EOF | |
| echo "export nvs path" | |
| export PATH=\$PATH:${HOME}/.nvs/default/bin | |
| echo "changing directory" | |
| cd ${gitWorkTreeDir} | |
| echo "installing dependencies" | |
| npm install | |
| EOF | |
| ) | |
| fi | |
| while [ ! "$isUseNPMBuild" ]; do | |
| read -p "*Include npm run build? (yes/no) " isUseNPMBuild | |
| if [ "$isUseNPMBuild" = "yes" ]; then | |
| isUseNPMBuild="include npm run build" | |
| elif [ "$isUseNPMBuild" = "no" ]; then | |
| isUseNPMBuild="exclude npm run build" | |
| else | |
| isUseNPMBuild= | |
| fi | |
| done | |
| if [ "$isUseNPMBuild" = "include npm run build" ]; then | |
| # append npm run build script to post receive hook | |
| postHooksScript+=$( | |
| cat <<-EOF | |
| echo "building project" | |
| npm run build | |
| EOF | |
| ) | |
| fi | |
| while [ ! "$isUsePM2" ]; do | |
| read -p "*Include pm2 start script? (yes/no) " isUsePM2 | |
| if [ "$isUsePM2" = "yes" ]; then | |
| isUsePM2="include pm2" | |
| while [ ! "$appName" ]; do | |
| read -p "*Provide app name: (app-name) " appName | |
| done | |
| while [ ! "$port" ]; do | |
| read -p "*Provide port number: (5000-5999) " port | |
| done | |
| elif [ "$isUsePM2" = "no" ]; then | |
| isUsePM2="exclude pm2" | |
| else | |
| isUsePM2= | |
| fi | |
| done | |
| if [ "$isUsePM2" = "include pm2" ]; then | |
| # add pm2 config | |
| pm2ConfigFile=${HOME}/source/node/ecosystem.config.js | |
| pm2ConfigScript=$( | |
| cat <<-EOF | |
| {\ | |
| \n name: "${appName}",\ | |
| \n script: "npm",\ | |
| \n args: "run start",\ | |
| \n cwd: "./${domainName}",\ | |
| \n watch: true,\ | |
| \n ignore_watch: ["node_modules"],\ | |
| \n restart_delay: 1000,\ | |
| \n env: {\ | |
| \n PORT: $port,\ | |
| \n },\ | |
| \n }, | |
| EOF | |
| ) | |
| # check if file exist and is not empty | |
| if [ -f "$pm2ConfigFile" ] && [ -s "$pm2ConfigFile" ]; then | |
| # get line position | |
| ln=$(($(cat $pm2ConfigFile | wc -l) - 1)) | |
| else | |
| ln=3 | |
| cat <<-EOF >$pm2ConfigFile | |
| module.exports = { | |
| apps: [ | |
| ], | |
| } | |
| EOF | |
| fi | |
| # insert pm2ConfigScript object string into array string in pm2ConfigFile | |
| # in the correct line position | |
| pm2ConfigScript=$(sed "${ln}i\\$pm2ConfigScript" $pm2ConfigFile) | |
| # append pm2 script to post receive hook | |
| postHooksScript+=$( | |
| cat <<-EOF | |
| echo "set up and start from pm2 config file" | |
| cd ${HOME}/source/node/ | |
| pm2 stop ${appName} || : && pm2 delete ${appName} || : && pm2 start ecosystem.config.js --only ${appName} | |
| pm2 save | |
| echo "completed" | |
| EOF | |
| ) | |
| fi | |
| # main script | |
| # create dirs | |
| mkdir -p $gitDir $gitWorkTreeDir | |
| # init git bare repo | |
| if cd $gitDir; then | |
| git init --bare --quiet | |
| else | |
| echo "failed changing directory to: $gitDir" >&2 | |
| echo "exit before running \"git init --bare\" and the rest of process" >&2 | |
| exit 1 | |
| fi | |
| # create post-receive hooks and set executable | |
| echo "$postHooksScript" >$postHooksFile | |
| chmod +x $postHooksFile | |
| # create copy of previous pm2 config | |
| cp $pm2ConfigFile $pm2ConfigFile.former 2>/dev/null | |
| # create pm2 config app if set | |
| [ "$isUsePM2" = "include pm2" ] && echo "$pm2ConfigScript" >$pm2ConfigFile | |
| # get public ip address | |
| publicIP=$(curl https://ipinfo.io/ip) | |
| # finish, ready to pushed to repo | |
| # output repo link | |
| echo "ssh://${USER}@$publicIP$gitDir" |
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