From 7e5e445df23adc373f9b34e9608d9063c3dd236e Mon Sep 17 00:00:00 2001
From: cryobry <38270216+cryobry@users.noreply.github.com>
Date: Wed, 1 Apr 2020 18:58:32 -0400
Subject: [PATCH] Change some naming

---
 plugins/podmanRun/podmanRunEasy    | 304 +++++++++++++++++++++++++++++
 plugins/podmanRun/podmanRunWrapper | 277 ++++++++++++++++++++++++++
 2 files changed, 581 insertions(+)
 create mode 100755 plugins/podmanRun/podmanRunEasy
 create mode 100755 plugins/podmanRun/podmanRunWrapper

diff --git a/plugins/podmanRun/podmanRunEasy b/plugins/podmanRun/podmanRunEasy
new file mode 100755
index 0000000..98e8b75
--- /dev/null
+++ b/plugins/podmanRun/podmanRunEasy
@@ -0,0 +1,304 @@
+#!/usr/bin/env bash
+# shellcheck disable=SC1090,SC2004
+
+podmanRunEasy () {
+
+    sourcePlugin "podmanRun/podmanRunWrapper"
+
+
+    ########################
+    ####### DEFAULTS #######
+    ########################
+
+    # Can be overridden using environment variables
+    [[ -z $_image ]] && _image="fedora:latest"
+    [[ -z $_mode ]] && _mode="ephemeral"
+    [[ -z $_workdir ]] && _workdir="$PWD"
+
+
+    _smartDefaults () {
+        echo ""
+        ### UNDER CONSTRUCTION ###
+        # I would like to handle some options automatically to reduce the number of configuration
+        # options necessary to run podman and also make it easy for users to define defaults based
+        # on file extension, command, shebang, etc
+
+        # check the basename for defaults
+        #[[ -z $COMMAND_DEF ]] \
+        #    && COMMAND_BASENAME="${COMMAND_ARR[0]##*/}" \
+        #    && _set_defaults "${COMMAND_BASENAME}"
+
+        # check the extension for defaults
+        #[[ -z $COMMAND_DEF ]] \
+        #    && COMMAND_EXT="${COMMAND_BASENAME##*.}" \
+        #    && _set_defaults "${COMMAND_EXT}"
+
+        # add defaults to the string
+        #if [[ -n $COMMAND_DEF ]]; then
+        #    [[ -z $_silent ]] && echo "Loaded command defaults, executing with \"${COMMAND_DEF}\""
+        #    COMMAND_STR="${COMMAND_DEF} ${COMMAND_STR}"
+        #else
+        #    [[ -z $_silent ]] && echo "Could not find command defaults from name or extension"
+        #    [[ -z $_silent ]] && echo "Executing script directly"
+        #fi
+    }
+
+    ########################
+    ###### FUNCTIONS #######
+    ########################
+
+    _printHelpAndExit () {
+
+        cat <<-'EOF'
+USAGE
+    podman-run-easy [-m _mode] [-w PATH] [-d PATH] [-i _image] [--systemd] [--mkexec] [--help]
+                    [--silent] [--debug] [COMMANDS [ARGS...]]
+
+COMMANDS
+    COMMANDS to run in the container (e.g. the current active file, an external
+    build script, a program residing in the container, etc.)
+    Can be empty (default entrypoint)
+
+OPTIONS
+    --mode, -m MODE
+        MODE can be any of the following:
+
+            1. ephemeral
+            2. persistent
+            3. recreate-persistent
+            4. remove-persistent
+
+    --workdir, -w PATH
+        The directory in the container where we execute the COMMANDS
+        Default: The present working directory
+
+    --maskdir, -d PATH
+        Hide this directory from the host OS, store contents in the container only
+
+    --image, -i IMAGE
+        IMAGE used to create the container
+        Default: fedora:latest
+
+    --mkexec, -x
+        Makes the first argument of COMMANDS executable
+
+    --name, -n CONTAINER_NAME
+        This will form the base of the container name and should be unique to each project
+        Default: Container name will be set based on a concatenation of the image and commands
+
+    --systemd
+        Force container to init with systemd (--systemd=always)
+        Default: --systemd=true (systemd will only start if CMD is systemd, /usr/sbin/init or
+        /sbin/init)
+
+    --array, -a ARRAY
+        Read arguments from an existing or new ARRAY (bash >= 4.3)
+        This is useful to reduce parsing errors and recommended for build-wrapper plugins
+
+    --silent, -s
+        Don't output anything from this program (container output will still be passed to stdout
+        if -it option is used instead of -d, see `man podman run` for more information)
+
+    --help, -h
+        Print this help message and exit (overrides --silent)
+
+EOF
+
+        # Exit using passed exit code
+        [[ -z $1 ]] && exit 0 || exit "$1"
+    }
+
+
+    _parseInput () {
+
+        [[ -n $_debug ]] && echo "$@"
+
+        # Unset array variable when reparsing array
+        unset _array
+
+        # Parse input and set switches using getopt
+        if _input=$(getopt -o +m:w:d:i:a:n:xsh -l mode:,workdir:,maskdir:,image:,array:,name:,mkexec,systemd,silent,debug,help -- "$@"); then
+            eval set -- "$_input"
+            while true; do
+                case "$1" in
+                    --mode|-m)
+                        shift
+                        _mode="$1"
+                        ;;
+                    --workdir|-w)
+                        shift
+                        _workdir="$1"
+                        ;;
+                    --maskdir|-d)
+                        shift
+                        _maskdir="$1"
+                        ;;
+                    --image|-i)
+                        shift
+                        _image="$1"
+                        ;;
+                    --name|-n)
+                        shift
+                        _name="$1"
+                        ;;
+                    --array|-a)
+                        shift
+                        _array="$1"
+                        break
+                        ;;
+                    --mkexec|-x)
+                        _mkexec="true"
+                        ;;
+                    --systemd|-s)
+                        _systemd="true"
+                        ;;
+                    --silent)
+                        _silent="true"
+                        ;;
+                    --debug)
+                        _debug="true"
+                        echo "Debugging on!"
+                        ;;
+                    --help|-h)
+                        _printHelpAndExit 0
+                        ;;
+                    --)
+                        shift
+                        break
+                        ;;
+                esac
+                shift
+            done
+        else
+            echo "Incorrect options provided"
+            _printHelpAndExit 1
+        fi
+
+        # If array mode, load input array, reparse input, and return
+        if [[ -n $_array ]]; then
+            checkBashVersion
+            local _n_array
+            declare -n _n_array="$_array"
+            _parseInput "${_n_array[@]}"
+            return
+        fi
+
+        # Create _pre_commands_array from remaining arguments
+        # shift getopt parameters away
+        shift $((OPTIND - 1))
+        # create array
+        declare -ga _pre_commands_array
+        _pre_commands_array=("$@")
+        [[ -n $_debug ]] && echo "_pre_commands_array:" "${_pre_commands_array[@]}"
+
+        # Sanitize mode numbers
+        [[ "$_mode" == "1" ]] && _mode="ephemeral"
+        [[ "$_mode" == "2" ]] && _mode="persistent"
+        [[ "$_mode" == "3" ]] && _mode="recreate-persistent"
+        [[ "$_mode" == "4" ]] && _mode="remove-persistent"
+
+        # build the podman options array
+        declare -ga _pre_options_array
+        _pre_options_array+=("-it")
+        #[[ "$_mode" == "ephemeral" ]] && _pre_options_array+=("--rm")
+        _pre_options_array+=("-v" "${_workdir}:${_workdir}")
+        _pre_options_array+=("-w" "${_workdir}")
+        [[ -n $_maskdir ]] && _pre_options_array+=("-v" "${_maskdir}")
+        [[ -n $_systemd ]] && _pre_options_array+=("--systemd=always")
+        [[ -n $_debug ]] && echo "_pre_options_array:" "${_pre_options_array[@]}"
+
+    }
+
+
+    _makeExec () {
+
+        # make executable
+        if [[ -n $_mkexec ]]; then
+            # assume script/program is the first argument in the command and break on whitespace
+            _program="${_pre_commands_array[0]}"
+            # make executable on the host
+            chmod +x "${_program}"
+            # make executable in the container
+            #COMMAND="chmod 755 ${_program} && $COMMAND"
+        fi
+    }
+
+
+    _sanityChecks () {
+
+        # If missing, create workdir
+        if ! [[ -d "$_workdir" ]]; then
+            [[ -z $_silent ]] && echo "--workdir does not exist!"
+            [[ -z $_silent ]] && echo "Creating ${_workdir} now..."
+            mkdir -p "${_workdir}"
+        fi
+
+        # Grant container SELinux access to the _workdir
+        fixPermissions "${_workdir}"
+    }
+
+
+    _runPodmanRunWrapper() {
+
+        _makeExec
+        local _prw_array
+        _prw_array=("-m" "${_mode}" "--optionsarray" "_pre_options_array" "-i" "${_image}" "-n" "${_name}" "--commandsarray" "_pre_commands_array")
+        [[ -n $_debug ]] && _prw_array+=("--debug")
+        [[ -n $_silent ]] && _prw_array+=("--silent")
+        if [[ -n $_debug ]]; then
+            echo -n "PRE->PRW argument array: "
+            printf '"%s" ' "${_prw_array[@]}"
+            echo ""
+        fi
+
+        podmanRunWrapper -a _prw_array
+    }
+
+
+
+#########################
+####### EXECUTE #########
+#########################
+
+    _execute () {
+
+        # Get input
+        _parseInput "$@"
+
+        # Call podman-run-wrapper
+        _runPodmanRunWrapper
+    }
+
+    # Allow this function to be executed directly
+    _execute "$@"
+}
+
+
+# Allow this file to be executed directly if not being sourced
+if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
+
+    # The following functions are usually handled by build-wrapper
+
+    _getBaseDir () {
+        # Get base directory name of where this script resides
+        # https://stackoverflow.com/questions/59895/how-to-get-the-source-directory-of-a-bash-script-from-within-the-script-itself#comment54598418_246128
+        _basedir=$(dirname "$(readlink -f "$0")")
+    }
+
+
+    _sourceFunctions () {
+        # Get the location of this file
+        _getBaseDir
+        # Go up two directories
+        ff="${_basedir%/*/*}/functions"
+        # Source functions file
+        if [[ -f "$ff" ]]; then
+            source "$ff"
+        else
+            echo "Cannot find functions file: ${ff}"
+        fi
+    }
+
+    _sourceFunctions
+    podmanRunEasy "$@"
+fi
diff --git a/plugins/podmanRun/podmanRunWrapper b/plugins/podmanRun/podmanRunWrapper
new file mode 100755
index 0000000..c04dfef
--- /dev/null
+++ b/plugins/podmanRun/podmanRunWrapper
@@ -0,0 +1,277 @@
+#!/usr/bin/env bash
+# shellcheck disable=SC1090,SC2004
+
+podmanRunWrapper () {
+
+    ########################
+    ###### FUNCTIONS #######
+    ########################
+
+    _printHelpAndExit () {
+
+        if [[ -z $_debug ]]; then
+            cat <<-'EOF'
+USAGE
+    Argument mode:
+        podman-run-wrapper -m MODE -o OPTIONS -i IMAGE [-n CONTAINER_NAME]
+        [--help] [--silent] [--debug] [COMMANDS [ARGS...]]
+
+    Array mode (bash >= 4.3):
+        podman-run-wrapper -a ARRAY
+
+EXAMPLE
+    podman-run-wrapper -m ephemeral -o "-it -v $PWD:$PWD -w $PWD" -i "php:latest" -c "php ./script.php"
+
+    ARRAY=( "-m" "ephemeral" "-o" "--rm -it -v $PWD:$PWD -w $PWD" "-i" "php:latest" "-c" "php ./script.php")
+    podman-run-wrapper -a ARRAY
+
+COMMANDS
+    COMMANDS to run in the container (e.g. the current active file, an external build script, a
+    program residing in the container, etc.)
+    Can be empty (run default container entrypoint)
+
+OPTIONS
+    --mode, -m MODE
+        MODE can be any of the following:
+
+            1. ephemeral
+            2. persistent
+            3. recreate-persistent
+            4. remove-persistent
+
+    --options, -o OPTIONS
+        OPTIONS to pass directly to `podman run` or `podman exec` depending on the mode or
+        container state
+
+    --image, -i IMAGE
+        IMAGE used to create the container
+
+    --array, -a ARRAY
+        Read arguments array named ARRAY (bash >= 4.3)
+        This is useful to reduce parsing errors and recommended for build-wrapper plugins
+
+    --optionsarray OPTIONS_ARRAY
+        Read podman options from array named OPTIONS_ARRAY (bash >= 4.3)
+        This is useful to reduce parsing errors and recommended for build-wrapper plugins
+
+    --commandsarray COMMANDS_ARRAY
+        Read container commands from array named COMMANDS_ARRAY (bash >= 4.3)
+        This is useful to reduce parsing errors and recommended for build-wrapper plugins
+
+    --name, -n CONTAINER_NAME
+        Use the CONTAINER_NAME base to name containers (should be unique to each project)
+        Default: Container name will be set based on a concatenation of the image and commands
+
+    --selinuxfix
+        A temporary hack to grant SELinux write access on $PWD until a better fix is found
+
+    --silent, -s
+        Only print errors
+
+    --debug, -d
+        Print debugging
+
+    --help, -h
+        Print this help message and exit
+
+EOF
+        fi
+
+        # Exit using passed exit code
+        [[ -z $1 ]] && exit 0 || exit "$1"
+    }
+
+
+    # Parse input
+    _parseInput () {
+
+        unset _mode _cmds_arr _opts_arr _options _prw_opts_arr _image _name _array _selinux_fix
+
+        # Use getopt to print help
+        if INPUT=$(getopt -o +m:o:i:x:n:a:sdh -l mode:,options:,image:,name:,array:,optionsarray:,commandsarray:,selinuxfix,silent,debug,help -- "$@"); then
+            eval set -- "$INPUT"
+            while true; do
+                case "$1" in
+                    --mode|-m)
+                        shift
+                        _mode="$1"
+                        ;;
+                    --options|-o)
+                        shift
+                        _options="$1"
+                        ;;
+                    --image|-i)
+                        shift
+                        _image="$1"
+                        ;;
+                    --name|-n)
+                        shift
+                        _name="$1"
+                        ;;
+                    --array|-a)
+                        shift
+                        _array="$1"
+                        ;;
+                    --optionsarray)
+                        shift
+                        _opts_arr="$1"
+                        ;;
+                    --commandsarray)
+                        shift
+                        _cmds_arr="$1"
+                        ;;
+                    --selinuxfix)
+                        _selinux_fix="1"
+                        ;;
+                    --help|-h)
+                        _printHelpAndExit 0
+                        ;;
+                    --silent|-s)
+                        _silent="1"
+                        ;;
+                    --debug|-d)
+                        _debug="1"
+                        echo "Debugging on!"
+                        ;;
+                    --)
+                        shift
+                        break
+                        ;;
+                esac
+                shift
+            done
+        else
+            echo "Incorrect options provided!"
+            _printHelpAndExit 1
+        fi
+
+
+        # If array mode, load and parse input array
+        if [[ -n $_array ]]; then
+            checkBashVersion
+            local _n_array
+            declare -n _n_array="$_array"
+            _parseInput "${_n_array[@]}"
+            return
+        fi
+
+        # Parse podman options
+        if [[ -n $_opts_arr ]]; then
+            # namerefs are awesome
+            declare -gn _prw_opts_arr="$_opts_arr"
+        # If not array mode optionally load podman options from input string
+        elif [[ -n $_options ]]; then
+            declare -ga _prw_opts_arr
+            for _option in $_options; do
+                _prw_opts_arr+=("$_option")
+            done
+        else
+            echo "Must provide --options or the name of an existing --optionsarray"
+            _printHelpAndExit 1
+        fi
+
+        # Parse commands
+        if [[ -n $_cmds_arr ]]; then
+            declare -gn _prw_cmds_arr="$_cmds_arr"
+        else
+            # Create COMMANDS array from remaining arguments
+            # shift getopt parameters away
+            shift $((OPTIND - 1))
+            # create array
+            declare -ga _prw_cmds_arr
+            _prw_cmds_arr=("$@")
+            if [[ ${#_prw_cmds_arr[@]} -lt 1 ]]; then
+                [[ -z $_silent ]] && echo "Warning: running container without any commands"
+            fi
+        fi
+
+        [[ -n $_debug ]] && echo "_prw_opts_arr:" "${_prw_opts_arr[@]}"
+        [[ -n $_debug ]] && echo "_prw_cmds_arr:" "${_prw_cmds_arr[@]}"
+    }
+
+
+    _addCName () {
+
+        # autogenerate _name if missing
+        [[ -z $_name ]] && _name="${_image}${_prw_cmds_arr[*]}"
+
+        # sanitize container name
+        _name="${_name//_/}" && _name="${_name// /}" && \
+        _name="${_name//[^a-zA-Z0-9_]/}" && _name="${_name,,}"
+
+        # append flag
+        if [[ "$_mode" == "ephemeral" ]]; then
+            _cname="prw-e-$_name"
+        else
+            _cname="prw-p-$_name"
+        fi
+        _prw_opts_arr+=("--name" "$_cname")
+    }
+
+
+    _removeContainer () {
+
+        if podman container exists "$_cname"; then
+            [[ -z $_silent ]] && echo "Removing container: $_cname"
+            [[ -n $_debug ]] && echo "podman rm -v -f $_cname"
+            podman rm -v -f "$_cname"
+        fi
+    }
+
+
+    _runContainer () {
+
+        # Run _remove_container first to not run in existing container
+        if podman container exists "${_cname}"; then
+            [[ -z $_silent ]] && echo "Reusing container: $_cname"
+            [[ -n $_debug ]] && echo podman exec "$_cname" sh -c "${_prw_cmds_arr[@]}"
+            podman exec "$_cname" sh -c "${_prw_cmds_arr[@]}"
+            exit $?
+        else
+            [[ -z $_silent ]] && echo "Running in container: $_cname"
+            [[ -n $_debug ]] && echo "Command: podman run" "${_prw_opts_arr[@]}" "$_image" sh -c "${_prw_cmds_arr[@]}"
+            podman run "${_prw_opts_arr[@]}" "$_image" "${_prw_cmds_arr[@]}"
+            exit $?
+        fi
+    }
+
+
+#########################
+####### EXECUTE #########
+#########################
+
+    _execute () {
+
+        # Get input
+        _parseInput "$@"
+
+        # Set container name
+        _addCName
+
+        # SELinux fix
+        [[ -n $_selinux_fix ]] && fixPermissions "$PWD"
+
+        # Execute podman
+        if [[ $_mode == "ephemeral" || $_mode == "recreate-persistent" ]]; then
+            _removeContainer
+            _runContainer
+        elif [[ $_mode == "remove-persistent" ]]; then
+            _removeContainer
+        elif [[ $_mode == "persistent" ]]; then
+            _runContainer
+        else
+            echo "Unknown mode!"
+            _printHelpAndExit 1
+        fi
+    }
+
+    # Allow this function to be executed directly
+    _execute "$@"
+}
+
+# Allow script to be called directly
+if [[ "${BASH_SOURCE[0]}" == "$0" ]]; then
+    # No imported functions
+    #source-functions
+    podmanRunWrapper "$@"
+fi