deploy.cgi

#!/bin/bash
# Deploys app3 from version control, runs tests and if tests pass, runs new version of the app. If tests fail or any other error, sends email.

# Write some HTTP headers to make Nginx happy
echo -e "Content-type: text/html\n"

# Variables
DIRECTORY="$PWD/public"
VCS_URL=git@github.com:henno/foo.git
OUTPUT=''

log() {
    # Output immediately (for terminal and web)
    echo -e $1

    # Collect OUTPUT (for sending email later)
    OUTPUT+="$1"$'\n'
}

cmd() {
    log "Doing '$@'"

    # Run the command and capture its output and exit code
    COMMAND_OUTPUT=`$@ 2>&1`
    COMMAND_EXIT_CODE=$?

    # Add command output to OUTPUT
    OUTPUT+=$COMMAND_OUTPUT$'\n'

    # Send the command output to stdout, too
    echo -e $COMMAND_OUTPUT$'\n'

    if [[ $COMMAND_EXIT_CODE -ne 0 ]]; then

        log "The previous command returned non-zero exit code. Aborting."

        # Send email to me
        mail -s 'message subject' -aFrom:app3@fadsghafdhdfhjnbb.club  henno.taht@gmail.com <<< $OUTPUT

        # Stop the script
        exit $?
    fi
}

log "Deploying $VCS_URL to $DIRECTORY"$'\n''--------------------------------------------------------------------------'

# Update project or re-create it from the scratch
if [ -d "$DIRECTORY" ] && grep -q $VCS_URL "$DIRECTORY/.git/config"
then

        # Update project

        # Change directory to the app folder
        cd $DIRECTORY

        log "The project has already been cloned here."
        log "Updating the project"

        # Change potentially changed files (only tracked ones) back to the state they were originally in Github
        cmd "git reset --hard"

        # Pull the new commits from Github
        cmd 'git pull'

    else

        # Re-create the project folder from the scratch

        log "Either the .git folder did not exist, or the config file did not exist or it did not contain VCS_URL"

        if [ -d "$DIRECTORY" ]; then

            log "Cleaning directory"
            rm -rvf "$DIRECTORY/*" "$DIRECTORY/.*"
        else
            log "The app folder did not exist"
            mkdir -p "$DIRECTORY"
        fi

        cd "$DIRECTORY"

        log "Doing git clone"
        git clone $VCS_URL public 2>&1
fi


# Run tests
cmd 'npm run test'