#!/usr/bin/env bash
#  vim:ts=4:sts=4:sw=4:et
#  args: help
#
#  Author: Hari Sekhon
#  Date: 2020-03-28 12:56:30 +0000 (Sat, 28 Mar 2020)
#
#  https://github.com/HariSekhon/DevOps-Bash-tools
#
#  License: see accompanying Hari Sekhon LICENSE file
#
#  If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
#
#  https://www.linkedin.com/in/HariSekhon
#

# XXX: IMPORTANT: if Jenkins is behind a reverse proxy such as Kubernetes Ingress, you will probably need to add the '-webSocket' argument, otherwise it Jenkins CLI will hang
#
#      Tip: set this in JENKINS_CLI_ARGS to not have to specify it all the time
#
# Examples:
#
#   # See all CLI options:
#
#       jenkins_cli.sh help
#
#   # Get Jenkins version:
#
#       jenkins_cli.sh version
#
#   # Show your authenticated user:
#
#       jenkins_cli.sh who-am-i
#
#   # List Plugins:
#
#       jenkins_cli.sh list-plugins
#
#   # List Jobs (Pipelines):
#
#       jenkins_cli.sh list-jobs
#
#   # List Credential Providers:
#
#       jenkins_cli.sh list-credentials-providers
#
#   # List Credentials in the default global in-built credential store:
#
#       jenkins_cli.sh list-credentials system::system::jenkins
#
#   # Dump all Credentials configurations in the default in-build credentials store in XML format:
#
#       jenkins_cli.sh list-credentials-as-xml system::system::jenkins

set -euo pipefail
[ -n "${DEBUG:-}" ] && set -x
srcdir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"

# could set this to DNS CNAME 'jenkins', but often these says we run in docker
DEFAULT_JENKINS_HOST=localhost
DEFAULT_JENKINS_PORT=8080

java="${JAVA:-java}"
jar="$srcdir/jenkins-cli.jar"

# shellcheck disable=SC2230
if ! which "$java" &>/dev/null; then
    echo "$java not found in PATH (\$PATH)"
    exit 1
fi

if [ -z "${JENKINS_URL:-}" ]; then
    host="${JENKINS_HOST:-${HOST:-$DEFAULT_JENKINS_HOST}}"
    port="${JENKINS_PORT:-${PORT:-$DEFAULT_JENKINS_PORT}}"
    http="http"
    if [ -n "${JENKINS_SSL:-}" ]; then
        http="https"
    fi
    export JENKINS_URL="$http://$host:$port"
fi

JENKINS_USER="${JENKINS_USER_ID:-${JENKINS_USER:-admin}}"

JENKINS_PASSWORD="${JENKINS_API_TOKEN:-${JENKINS_TOKEN:-${JENKINS_PASSWORD:-}}}"
if [ -z "${JENKINS_PASSWORD:-}" ]; then
    JENKINS_PASSWORD="$("$srcdir/jenkins_password.sh" || :)"
fi

if ! [ -s "$jar" ]; then
    if type -P wget &>/dev/null; then
        wget -cO "$jar" "$JENKINS_URL/jnlpJars/jenkins-cli.jar"
    else
        curl -sSf >"$jar" "$JENKINS_URL/jnlpJars/jenkins-cli.jar"
    fi
fi

# -s "$JENKINS_URL" is implicit
# cannot load jenkins job from stdin if doing this
#java -jar "$jar" -auth @/dev/fd/0 "$@" <<< "$JENKINS_USER:$JENKINS_PASSWORD"
#java -jar "$jar" -auth "$JENKINS_USER:$JENKINS_PASSWORD" "$@"

# want splitting
# shellcheck disable=SC2086
java -jar "$jar" -s "$JENKINS_URL" -auth @<(cat <<< "$JENKINS_USER:$JENKINS_PASSWORD") ${JENKINS_CLI_ARGS:-} "$@"