deploy-env

#!/usr/bin/env bash
set -euo pipefail
IFS=$'\n\t'
LANG=C

# shellcheck source=./shellib/shellib.sh
. "$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")/shellib/shellib.sh"

# Check if dev env should be deployed by CI pipeline source
function is_dev_env_pipeline_source() {
    local ci_pipeline_sources=('api' 'chat' 'trigger' 'web' 'webide')
    [[ ${ci_pipeline_sources[*]} =~ $CI_PIPELINE_SOURCE ]]
}

# Check if dev env should be deployed by CI pipeline source and ENV_SKIP or CREATE_ENV variable
function is_dev_env_create_var() {
    local ci_pipeline_sources=('push' 'schedule')
    [[ ${ci_pipeline_sources[*]} =~ $CI_PIPELINE_SOURCE ]] &&
        { [ -n "${ENV_CREATE+x}" ] || [ -n "${CREATE_ENV+x}" ]; }
}

# Check if dev env should be skipped by ENV_SKIP or SKIP_ENV variable
function is_dev_env_skip() {
    [ -n "${ENV_SKIP+x}" ] || [ -n "${SKIP_ENV+x}" ] ||
        [[ ${CI_COMMIT_MESSAGE,,} =~ \[(skip\ env|env\ skip)\] ]]
}

# Check if dev env should be deployed or not
function deploy_dev_env() {
    local result=1
    local gl_tf_be_status_code

    gl_tf_be_status_code=$(curl -s -H "Private-Token: $GL_TOKEN" -I "$GL_TF_BE/$CI_ENVIRONMENT_SLUG" -o /dev/null -w '%{http_code}')
    case "$gl_tf_be_status_code" in
    200) result=0 ;;
    404)
        if is_dev_env_pipeline_source || is_dev_env_create_var; then
            result=0
        fi
        ;;
    *)
        err "Terraform state at '$GL_TF_BE/$CI_ENVIRONMENT_SLUG' returns HTTP status code '$gl_tf_be_status_code'"
        return "$status_err"
        ;;
    esac

    if [ $result == 0 ] && is_dev_env_skip; then
        return 1
    fi

    return $result
}

# Check if env should be deployed or not
function deploy_env() {
    if [ "$CI_ENVIRONMENT_TIER" == "development" ]; then
        deploy_dev_env
    else
        true
    fi
}

# Skip execution under test
if [ "${BASH_SOURCE[0]}" == "${0}" ]; then
    deploy_env
fi