#!/usr/bin/no-execute
+# shellcheck shell=bash
# SPDX-License-Identifier: EPL-1.0
##############################################################################
# which accompanies this distribution, and is available at
# http://www.eclipse.org/legal/epl-v10.html
##############################################################################
-
-# A library of functions for LF/Jenkins bash scripts. In the general case, do
-# NOT set shell variables here. If you want to make a variable available,
-# provide a function that sets the variable: 'function lf_set_foo()
-# {foo=asdf;}'. Any scripts that need access to the variable can call the 'set'
-# function. This keeps the name-space polution to a minimum.
-
+#
+# A library of functions for LF/Jenkins bash scripts. In the general case, these
+# functions should only use 'local' variables, and should NOT set
+# shell/environment variables. If you want to make a variable available, provide
+# a function that sets the variable: 'function lf_set_foo() {foo=asdf;}'. Any
+# scripts that need access to the variable can call the 'set' function. This
+# keeps the name-space pollution to a minimum.
+#
+# This script will be installed in ~jenkins by the Jenkins Init Script when the
+# build agent boots. When the build starts it should already be installed.
+#
################################################################################
-# Functions
+#
+# NAME
+# lf-echo-stderr
+#
+# SYNOPSIS
+# source ~/lf-env.sh
+#
+# lf-echo-stderr "this entire" "string will be sent to stderr"
+#
+# DESCRIPTION
+# This function will echo all command line aruments to 'stderr'
+#
+# RETURN VALUE
+# None
+#
################################################################################
-# Execute pip from 'user' venv
-function lf-pip() { /home/jenkins/.local/bin/pip "$@" ; }
+lf-echo-stderr () {
+ echo "$@" 1>&2
+}
-# Echo all arguments to stderr
-function lf-echoerr() { echo "$@" 1>&2; }
+################################################################################
+#
+# NAME
+# lf-boolean
+#
+# SYNOPSIS
+# # shellcheck disable=SC1090
+# source ~/lf-env.sh
+#
+# if lf-boolean $VAR; then
+# echo "VAR is true"
+# fi
+#
+# DESCRIPTION
+# This function will return a BOOLEAN (true or false) based upon the value
+# of VAR. The value of VAR will be mapped to lower case. If VAR maps to
+# "true", return true(0). If VAR maps to "false", return false(1). Any
+# other values will return false(2) and an error message.
+#
+# RETURN VALUES
+# OK: 0
+# Fail: 1 or 2
+#
+################################################################################
-# Function to safely evaluate booleans
-# If the boolean equal '' it is an Fatal Error
-# Note the case of boolean will be ignored (always mapped to lower-case)
-function lf-boolean()
-{
- if [[ $# != 1 ]]; then
- echo "lf-boolean(): Missing boolean operand"
- exit 1
+lf-boolean () {
+ if (( $# != 1 )); then
+ echo "ERROR: ${FUNCNAME[0]}() line: ${BASH_LINENO[0]} :"\
+ " Missing Required Argument"
+ return 1
fi
local bool
bool=$(echo "$1" | tr '[:upper:]' '[:lower:]')
- if [[ -z $bool ]] ; then
- # Output script name & line number of call to function
- lf-echoerr "ERROR: $(basename $0) line: ${BASH_LINENO[0]} : A boolean cannot be a empty string" >&2
- exit 1
+ case $bool in
+ true) return 0 ;;
+ false) return 1 ;;
+ '')
+ lf-echo-stderr "ERROR: ${FUNCNAME[0]}() line:{BASH_LINENO[0]} :"\
+ " A boolean cannot be a empty string" >&2
+ return 2
+ ;;
+ *)
+ lf-echo-stderr "ERROR: ${FUNCNAME[0]}() line: ${BASH_LINENO[0]} :"\
+ " Invalid value for a boolean: '$bool'"
+ return 2
+ ;;
+ esac
+}
+
+################################################################################
+#
+# NAME
+# lf-activate-venv [-p|--python python] [-v|--venv-file] [--no-path]
+# [--system-site-packages] [package]...
+#
+# SYNOPSIS
+# # shellcheck disable=SC1090
+# source ~/lf-env.sh
+#
+# lf-activate-venv tox tox-pyenv
+# or
+# lf-activate-venv jenkins-job-builder
+# or
+# lf-activate-venv lftools
+# or
+# lf-activate-venv --python python3.8 git-review
+#
+# lf-activate-venv --python python3.8 --venv-file /tmp/.myvenv git-review
+#
+# DESCRIPTION
+# This function will create a new Python Virtual Environment (venv) and
+# install the specified packages in the new venv. The venv will be installed
+# in $lf_venv and by default, the $lf_venv/bin directory will be prepended
+# to the PATH.
+#
+# The 'lf_venv' variable will be set so you can directly execute commands
+# in the venv with: $lf_venv/bin/command. lf-activate-venv() will check for
+# existing file '/tmp/.os_lf_venv' and set 'lf_venv' if the file exists.
+#
+# The function provides a --venv-file path for saving the value of the 'lf_env'
+# that can re-used later. By default '/tmp/.os_lf_venv' venv file is created
+# when the --venv-file option is not specified.
+#
+# Subsequent calls to lf-activate-venv() will re-use the existing venv
+# throught and will NOT overwrite 'lf_venv', if the '/tmp/.os_lf_venv'
+# already exists.
+#
+# If a new venv is required delete the file '/tmp/.os_lf_venv' before
+# calling lf-activate-venv() will create a fresh venv.
+#
+# By default all packages are installed with '--upgrade-strategy eager'.
+# The venv will always contain pip & virtualenv.
+#
+# Some packages have a default version. If one of those packages is specified,
+# the 'version' specifier will be added for the install. If the version is
+# specified on the command line that version will be used.
+# The following packages have default versions:
+# Package Version
+# jenkins-job-builder $JJB_VERSION
+#
+# If the --python flag is specified, the specified python executable will be
+# used to create the venv. The --python option must be in the PATH. The venv
+# will be located in $lf_venv (/tmp/venv-####).
+#
+# If the --no-path flag is specified, $lf_venv/bin will not be prepended to
+# the PATH.
+#
+# If the --system-site-packages flag is specified, the --system-site-packages
+# flag will be passed to the inital 'pip install' (python3* only).
+#
+# RETURN VALUES
+# OK: 0
+# Fail: 1
+#
+################################################################################
+
+lf-activate-venv () {
+ lf_venv=$(mktemp -d /tmp/venv-XXXX)
+ local venv_file="/tmp/.os_lf_venv"
+ local python=python3
+ local options
+ local set_path=true
+ local install_args=""
+ # set -x
+ options=$(getopt -o 'np:v:' -l 'no-path,system-site-packages,python:,venv-file:' \
+ -n "${FUNCNAME[0]}" -- "$@" )
+ eval set -- "$options"
+ while true; do
+ case $1 in
+ -n|--no-path) set_path=false ; shift ;;
+ -p|--python) python="$2" ; shift 2 ;;
+ -v|--venv-file) venv_file="$2" ; shift 2 ;;
+ --system-site-packages) install_args="--system-site-packages" ;
+ shift ;;
+ --) shift; break ;;
+ *) lf-echo-stderr \
+ "${FUNCNAME[0]}(): ERROR: Unknown switch '$1'." ;
+ return 1 ;;
+ esac
+ done
+
+ case $python in
+ python2*)
+ local pkg_list="$*"
+ # For Python2, just create venv and install pip
+ virtualenv -p "$python" "$lf_venv" || return 1
+ "$lf_venv/bin/pip" install --upgrade --quiet pip || return 1
+ if [[ -z $pkg_list ]]; then
+ echo "${FUNCNAME[0]}(): WARNING: No packages to install"
+ return 0
+ fi
+ echo "${FUNCNAME[0]}(): INFO: Installing: $pkg_list"
+ # $pkg_list is expected to be unquoted
+ # shellcheck disable=SC2086
+ "$lf_venv/bin/pip" install --upgrade --quiet $pkg_list || return 1
+ ;;
+ python3*)
+ local pkg_list=""
+ # Use pyenv for selecting the python version
+ if [[ -d "/opt/pyenv" ]]; then
+ echo "Setup pyenv:"
+ export PYENV_ROOT="/opt/pyenv"
+ export PATH="$PYENV_ROOT/bin:$PATH"
+ pyenv versions
+ if command -v pyenv 1>/dev/null 2>&1; then
+ eval "$(pyenv init - --no-rehash)"
+ pyenv local $(lf-pyver "${python}")
+ fi
+ fi
+
+ # Add version specifier for some packages
+ for arg in "$@"; do
+ case $arg in
+ jenkins-job-builder)
+ pkg_list+="jenkins-job-builder==${JJB_VERSION:-2.8.0} " ;;
+ *) pkg_list+="$arg " ;;
+ esac
+ done
+
+ # Precedence:
+ # - Re-use venv:
+ # 1. --venv-file <path/to/file> as lf_venv
+ # 2. default: "/tmp/.os_lf_venv"
+ # - Create new venv when 1. and 2. is absent
+ if [[ -f "$venv_file" ]]; then
+ lf_venv=$(cat "$venv_file")
+ echo "${FUNCNAME[0]}(): INFO: Reuse venv:$lf_venv from" \
+ "file:$venv_file"
+ elif [[ ! -f "$venv_file" ]]; then
+ if [[ -n "$install_args" ]]; then
+ $python -m venv "$install_args" "$lf_venv" || return 1
+ else
+ $python -m venv "$lf_venv" || return 1
+ fi
+ echo "${FUNCNAME[0]}(): INFO: Creating $python venv at $lf_venv"
+ echo "$lf_venv" > "$venv_file"
+ echo "${FUNCNAME[0]}(): INFO: Save venv in file: $venv_file"
+ fi
+
+ "$lf_venv/bin/pip" install --upgrade --quiet pip virtualenv || return 1
+ if [[ -z $pkg_list ]]; then
+ echo "${FUNCNAME[0]}(): WARNING: No packages to install"
+ return 0
+ fi
+ echo "${FUNCNAME[0]}(): INFO: Installing: $pkg_list"
+ # $pkg_list is expected to be unquoted
+ # shellcheck disable=SC2086
+ "$lf_venv/bin/pip" install --upgrade --quiet --upgrade-strategy eager \
+ $pkg_list || return 1
+ ;;
+ *)
+ lf-echo-stderr "${FUNCNAME[0]}(): ERROR: No support for: $python"
+ return 1
+ ;;
+ esac
+
+ if ! type "$python" > /dev/null; then
+ lf-echo-stderr "${FUNCNAME[0]}(): ERROR: Unknown Python: $python"
+ return 1
fi
- $bool
+
+ if $set_path; then
+ echo "${FUNCNAME[0]}(): INFO: Adding $lf_venv/bin to PATH"
+ PATH=$lf_venv/bin:$PATH
+ return 0
+ else
+ echo "${FUNCNAME[0]}(): INFO: Path not set, lf_venv set to: $lf_venv"
+ fi
+
+} # End lf-activate-venv
+
+################################################################################
+#
+# NAME
+# lf-git-validate-jira-urls
+#
+# SYNOPSIS
+# # shellcheck disable=SC1090
+# source ~/lf-env.sh
+#
+# lf-git-validate-jira-urls
+#
+# DESCRIPTION
+# Check for JIRA URLS in the commit message
+#
+# RETURN VALUES
+# OK: 0
+# Fail: 1
+#
+################################################################################
+
+lf-git-validate-jira-urls () {
+ echo "Checking for JIRA URLs in commit message..."
+ # if JIRA_URL is not defined, nothing to do
+ if [[ -v JIRA_URL ]]; then
+ base_url=$(echo "$JIRA_URL" | awk -F'/' '{print $3}')
+ jira_link=$(git rev-list --format=%B --max-count=1 HEAD | \
+ grep -io "http[s]*://$base_url/" || true)
+ if [[ -n $jira_link ]]; then
+ lf-echo-stderr \
+ "${FUNCNAME[0]}(): ERROR: JIRA URL found in commit message"
+ lf-echo-stderr \
+ 'Add jira references as: Issue: <JIRAKEY>-<ISSUE#>,'\
+ ' instead of URLs'
+ return 1
+ fi
+ else
+ echo "${FUNCNAME[0]}(): WARNING: JIRA_URL not set, continuing anyway"
+ fi
+ return 0
}
-# Function to activate a Python Virtual Environment
-# Just validate the path and add 'bin' to the path
-function lf-activate()
-{
- if [[ $# != 1 ]]; then
- echo "lf-activate(): Missing path operand"
- exit 1
+################################################################################
+#
+# NAME
+# lf-jjb-check-ascii
+#
+# SYNOPSIS
+# # shellcheck disable=SC1090
+# source ~/lf-env.sh
+#
+# lf-jjb-check-ascii
+#
+# DESCRIPTION
+# Check for JJB YAML files containing non-printable ascii characters. This
+# function must be run from the top of the global-jjb repo.
+#
+# RETURN VALUES
+# OK: 0
+# Fail: 1
+#
+################################################################################
+
+lf-jjb-check-ascii () {
+ if [[ ! -d "jjb" ]]; then
+ lf-echo-stderr "${FUNCNAME[0]}(): ERROR: missing jjb directory"
+ lf-echo-stderr \
+ "This function can only be run from top of global-jjb directory"
+ return 1
fi
- local venv_path=$1
- # Validate the path to a VENV
- if [[ ! -d $venv_path/bin ]]; then
- lf-echoerr "ERROR: Is '$venv_path' a Python Environment ?"
+ if LC_ALL=C grep -I -r '[^[:print:][:space:]]' jjb/; then
+ lf-echo-stderr \
+ "${FUNCNAME[0]}(): ERROR: Found YAML files containing"\
+ " non-printable characters."
return 1
fi
- PATH=$venv_path/bin:$PATH
+ echo "${FUNCNAME[0]}(): INFO: All JJB YAML files contain only printable"\
+ " ASCII characters"
+ return 0
}
################################################################################
# Functions that assign Variables
################################################################################
-# Although these variables are 'shell' variables, they need to be upper-case so
-# 'shellcheck' does check for 'used-before-set' when they are referenced. So if
-# forget to 'source' this file, you will get a 'run-time' error (if you have -u
-# set), otherwise you will get "MAVEN_OPIONS=''.
-
-function lf-set-maven-options()
-{
- # shellcheck disable=SC2034 # Disable 'unused-variable' check
- MAVEN_OPTIONS=$(echo --show-version --batch-mode -Djenkins \
- -Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=warn \
- -Dmaven.repo.local=/tmp/r -Dorg.ops4j.pax.url.mvn.localRepository=/tmp/r)
+# These variables are shell (local) variables and need to be lower-case so
+# Shellcheck knows they are shell variables and will check for
+# 'used-before-set'.
+
+lf-set-maven-options () {
+ # Disable 'unused-variable' check
+ # shellcheck disable=SC2034
+ maven_options="--show-version --batch-mode -Djenkins \
+ -Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.\
+ transfer.Slf4jMavenTransferListener=warn \
+ -Dmaven.repo.local=/tmp/r \
+ -Dorg.ops4j.pax.url.mvn.localRepository=/tmp/r"
+}
+
+################################################################################
+#
+# NAME
+# lf-pyver [python-version X.Y]
+#
+# SYNOPSIS
+# pyver 3.8 (outputs 3.8.13)
+# or
+# pyver 3.10 (outputs 3.10.6)
+# or
+# pyver 3 (outputs the most recent version 3.10.6)
+#
+# DESCRIPTION
+# The function takes short python version in the format and X.Y and prints
+# the semver format (X.Y.Z) of the version that has been installed on the system
+# with pyenv.
+#
+# When the expected version is not installed, nothing is returned.
+#
+# RETURN VALUES
+# OK: 0
+# Fail: 1
+#
+################################################################################
+
+lf-pyver() {
+ local py_version_xy="${1:-python3}"
+ local py_version_xyz=""
+
+ pyenv versions | sed 's/^[ *]* //' | awk '{ print $1 }' | grep -E '^[0-9.]*[0-9]$' \
+ > "/tmp/.pyenv_versions"
+ if [[ ! -s "/tmp/.pyenv_versions" ]]; then
+ lf-echo-stderr "${FUNCNAME[0]}(): ERROR: pyenv not available"
+ return 1
+ fi
+
+ # strip out any prefix for (ex: 'python3.8' or 'v3.8') and match regex
+ # to the output return by pyenv
+ py_version_xyz=$(grep "^${py_version_xy//[a-zA-Z]/}" "/tmp/.pyenv_versions" |
+ sort -V | tail -n 1;)
+ if [[ -z ${py_version_xyz} ]]; then
+ lf-echo-stderr "${FUNCNAME[0]}(): ERROR: Not installed on host: ${py_version_xy}"
+ return 1
+ fi
+ echo "${py_version_xyz}"
+ return 0
}