next-gen: init

kreypi/README.md

@@ -1,80 +1,5 @@
 # KREYPI!
-Kreyren's way to be more effective writing bash scripts
+Kreyren's way to be more effective writing shell/bash scripts
 
 ## Usage
-To use this BASH API place this codeblock at the top of your bash script:
-
-```bash
-### START OF KREYPI INIT ###
-# https://github.com/RXT067/Scripts/tree/kreyren/kreypi
-
-# Do not make additional functions here since we are going to source a library
-
-# Check for root
-if [ "$(id -u)" != 0 ]; then
-	printf 'FATAL: %s\n' "This script is using KREYPI library which needs to be exported in /lib/shell using root permission"
-	exit 3
-elif [ "$(id -u)" = 0 ]; then
-	# shellcheck disable=SC2154
-	[ -n "$debug" ] && printf 'DEBUG: %s\n' "Script executed from an user with ID $(id -u)"
-else
-	printf 'FATAL: %s\n' "Unexpected happend in KREYPI_INIT for checking root"
-	exit 255
-fi
-
-# Create a new directory for shell libraries if not present already
-if [ ! -e /lib/shell ]; then
-	mkdir /lib/shell || { printf 'FATAL: %s\n' "Unable to make a new directory in '/lib/shell', is this non-standard file hierarchy?" ; exit 1 ;}
-elif [ -f /lib/shell ]; then
-	printf 'FATAL: %s\n' "File '/lib/shell' is a file which is unexpected, expecting directory to export kreypi library"
-	exit 1
-elif [ -d /lib/shell ]; then
-	# shellcheck disable=SC2154
-	[ -n "$debug" ] && printf 'DEBUG: %s\n' "Directory '/lib/shell' already exists, no need to make it"
-else
-	printf 'FATAL: %s\n' "Unexpected result in KREYPI_INIT checking for /lib/shell"
-	exit 255
-fi
-
-# Fetch the library
-if [ -e /lib/shell/kreypi.sh ]; then
-	# shellcheck disable=SC2154
-	[ -n "$debug" ] && printf 'DEBUG: %s\n' "Directory in '/lib/shell' already exists, skipping fetch"
-elif command -v wget >/dev/null; then
-	wget https://raw.githubusercontent.com/RXT067/Scripts/kreyren/kreypi/kreypi.sh -O /lib/shell/kreypi.sh || { printf 'FATAL: %s\n' "Unable to fetch kreypi.sh from https://raw.githubusercontent.com/RXT067/Scripts/kreyren/kreypi/kreypi.sh in /lib/shell/kreypi.sh using wget" ; exit 1;}
-elif command -v curl >/dev/null; then
-	curl https://raw.githubusercontent.com/RXT067/Scripts/kreyren/kreypi/kreypi.sh -o /lib/shell/kreypi.sh || { printf 'FATAL: %s\n' "Unable to fetch kreypi.sh from https://raw.githubusercontent.com/RXT067/Scripts/kreyren/kreypi/kreypi.sh in /lib/shell/kreypi.sh using curl" ; exit 1 ;}
-else
-	printf 'FATAL: %s\n' "Unable to download kreypi library from 'https://raw.githubusercontent.com/RXT067/Scripts/kreyren/kreypi/kreypi.sh' in '/lib/shell/kreypi.sh'"
-	exit 255
-fi
-
-# Sanitycheck for /lib/shell
-if [ -e /lib/shell ]; then
-	# shellcheck disable=SC2154
-	[ -n "$debug" ] && printf 'DEBUG: %s\n' "Directory in '/lib/shell' already exists, passing sanity check"
-elif [ ! -e /lib/shell ]; then
-	printf 'FATAL: %s\n' "Sanitycheck for /lib/shell failed"
-	exit 1
-else
-	printf 'FATAL: %s\n' "Unexpected happend in sanitycheck for /lib/shell"
-	exit 255
-fi
-
-# Source KREYPI
-if [ -e "/lib/shell/kreypi.sh" ]; then
-	# 'source' can not be used on POSIX sh
-	# shellcheck source="/lib/shell/kreypi.sh"
-	. "/lib/shell/kreypi.sh" || { printf 'FATAL: %s\n' "Unable to source '/lib/shell/kreypi.sh'" ; exit 1 ;}
-	# shellcheck disable=SC2154
-	[ -n "$debug" ] && printf 'DEBUG: %s\n' "Kreypi in '/lib/shell/kreypi.sh' has been successfully sourced"
-elif [ ! -e "/lib/shell/kreypi.sh" ]; then
-	printf 'FATAL: %s\n' "Unable to source '/lib/shell/kreypi.sh' since path does not exists"
-	exit 1
-else
-	printf 'FATAL: %s\n' "Unexpected happend in sourcing KREYPI_INIT"
-	exit 255
-fi
-
-### END OF KREYPI INIT ###
-```
+FIXME

kreypi/functions/checkroot.sh

@@ -0,0 +1,24 @@
+#!/bin/sh
+# Created by Jacob Hrbek <kreyren@rixotstudio.cz> in 2019 under the terms of GPL-3 (https://www.gnu.org/licenses/gpl-3.0.en.html)
+
+: '
+Check if script has been executed with root permission if not and variale KREPI_CHECKROOT_WORKAROUND_ROOT is set it will try to invoke itself as root'
+
+# Checkroot - Check if executed as root, if not tries to use sudo if KREYPI_CHECKROOT_USE_SUDO variable is not blank
+checkroot() {
+    die fixme "Checkroot needs more sanitization"
+
+	if [ "$(id -u)" = 0 ]; then
+		return 0
+	elif command -v sudo >/dev/null && [ -n "$KREYPI_CHECKROOT_USE_SUDO" ] && [ -n "$(id -u)" ]; then
+		info "Failed to aquire root permission, trying reinvoking with 'sudo' prefix"
+		exec sudo "$0 -c\"$*\""
+	elif ! command -v sudo >/dev/null && [ -n "$KREYREN" ] && [ -n "$(id -u)" ]; then
+		einfo "Failed to aquire root permission, trying reinvoking as root user."
+		exec su -c "$0 $*"
+	elif [ "$(id -u)" != 0 ]; then
+		die 3
+	else
+		die 255 "checkroot"
+	fi
+}

kreypi/functions/eexeccheck.sh

@@ -0,0 +1,33 @@
+#!/bin/sh
+# Created by Jacob Hrbek <kreyren@rixotstudio.cz> in 2019 under the terms of GPL-3 (https://www.gnu.org/licenses/gpl-3.0.en.html)
+
+: '
+Wrapper used to check if parsed command is executable on the system
+
+SYNOPSIS: eexechcheck [command]
+
+Returns 0 if command is executable or 126 if it is not
+
+Expected to be piped in die if fatal is expected
+
+    eexeccheck wget | die'
+
+# Check executable
+eexeccheck() {
+	eexeccheckCommand="$1"
+
+    fixme "Terminator for eexecheck is not configured to output command name in output"
+    die 1 "I'm not sure how i want to implement this, stubbing for now - Kreyren"
+
+	if ! command -v "$eexeccheckCommand" >/dev/null; then
+		# Not executable
+		return 126
+	elif command -v "$eexeccheckCommand" >/dev/null; then
+		# Is executable
+		return 0
+	else
+		die 255 "check_exec"
+	fi
+
+	unset eexeccheckCommand
+}

kreypi/functions/eextract.sh

@@ -0,0 +1,28 @@
+#!/bin/sh
+# Created by Jacob Hrbek <kreyren@rixotstudio.cz> in 2019 under the terms of GPL-3 (https://www.gnu.org/licenses/gpl-3.0.en.html)
+
+: '
+Wrapper used to extract various archives in target directory
+
+SYNOPSIS: eextract [archive] [destdir] (expected files)'
+
+eextract() {
+	# Capture arguments
+	while [ $# -ge 1 ]; do case "$1" in
+		*.tar.gz) file="$1" ; shift 1 ;;
+		*/) targetdir="$1" ; shift 1 ;;
+		*) die 2 "Unsupported argument parsed in extractor - '$1'"
+	esac; done
+
+	die fixme "extractor is not finished"
+
+	# Action based on file imported
+	case "$file" in
+		*.tar.xz)
+			if command -v tar >/dev/null; then
+				tar -Jxpf "$file" -C "$targetdir" || die 1 "Unable to extract archive '$file' to '$targetdir' using tar"
+			fi
+		;;
+		*) die 255 "Unexpected file parsed in extractor"
+	esac
+}

kreypi/functions/egit.sh

@@ -0,0 +1,59 @@
+#!/bin/sh
+# Created by Jacob Hrbek <kreyren@rixotstudio.cz> in 2019 under the terms of GPL-3 (https://www.gnu.org/licenses/gpl-3.0.en.html)
+
+: "
+Wrapper used for git command"
+
+egit() {
+	argument="$1"
+	MYFUNCNAME="egit"
+
+	case "$argument" in
+		clone)
+			git_url="$3"
+			destdir="$4"
+
+			# Check if 'git' is executable
+			if ! command -v "git" >/dev/null; then die 126 "command 'git' is not executable"; fi
+
+			# Sanitization for variable 'git_url'
+			case $git_url in
+				https://*.git) true ;;
+				*) die 1 "$MYFUNCNAME: Argument '$1' doesn't match 'https://*.git'"
+			esac
+
+			# Sanitization for variable 'destdir'
+			if [ -d "$destdir" ]; then
+				true
+			elif [ ! -d "$destdir" ]; then
+				case $destdir in
+					/*) true ;;
+					# Sanitization to avoid making a git repositories in a current working directory
+					"") die 2 "$MYFUNCNAME-$argument is not supported to run without a specified directory" ;;
+					*) die 1 "Variable destdir '$destdir' is not a valid directory for command '$MYFUNCNAME $argument $git_url $destdir'"
+				esac
+			else
+				die 255 "$MYFUNCNAME $argument - destdir"
+			fi
+
+			fixme "$MYFUNCNAME $argument: Check if directory already cloned git repository"
+
+			# Action
+			git clone "$git_url" "$destdir"
+
+			git_err_code="$?"
+
+			fixme "Add translate for $MYFUNCNAME $argument"
+			case $git_err_code in
+				0) debug "Command 'git $argument $git_url $destdir' returned true" ;;
+				128) info "Command 'git' already cloned '$git_url' in '$destdir'" ;;
+				*) die 1 "Command 'git clone $git_url $destdir' returned an unknown error code: $git_err_code"
+			esac
+
+			unset git_url destdir git_err_code
+		;;
+		*) die fixme "Argument $argument is not supported by $MYFUNCNAME"
+	esac
+
+	unset argument MYFUNCNAME
+}

kreypi/functions/emkdir.sh

@@ -0,0 +1,79 @@
+#!/bin/sh
+# Created by Jacob Hrbek <kreyren@rixotstudio.cz> in 2019 under the terms of GPL-3 (https://www.gnu.org/licenses/gpl-3.0.en.html)
+
+: '
+Wrapper for `mkdir` command
+
+SYNOPSIS: emkdir pathname/to/directory permission user group
+
+Currently accepted values for permission are {0000..7777}'
+
+emkdir() {
+	# TODO: capture everything that has syntax of path in $1
+
+    # Naming set this way to avoid conflicts with other variables since we are unseting these at the end
+	emkdirTargetdir="$1"
+	emkdirPermission="$2"
+	emkdirUserperm="$3"
+	emkdirGroupperm="$4"
+
+	# Path check
+	if [ ! -d "$emkdirTargetdir" ]; then
+		debug "Creating a directory in '$emkdirTargetdir'"
+		mkdir "$emkdirTargetdir" || die 1 "Unable to make a new directory in '$emkdirTargetdir'"
+	elif [ -d "$emkdirTargetdir" ]; then
+		debug "Directory '$emkdirTargetdir' already exists, skipping creation"
+	elif [ -f "$emkdirTargetdir" ]; then
+		die 1 "Path '$emkdirTargetdir' is a file which is unexpected, skipping creation of directory"
+	else
+		die 255 "emkdir - path check"
+	fi
+
+	# Check permission
+	case "$emkdirPermission" in
+		[0-9][0-9][0-9][0-9])
+			if [ "$(stat -c "%#a" "$emkdirTargetdir" 2>/dev/null)" != "$emkdirPermission" ]; then
+				debug "Changing permisson of '$emkdirTargetdir' on '$emkdirPermission'"
+				chmod "$emkdirPermission" "$emkdirTargetdir" || die 1 "Unable to change permission '$emkdirPermission' for '$emkdirTargetdir'"
+			elif [ "$(stat -c "%#a" "$emkdirTargetdir" 2>/dev/null)" = "$emkdirPermission" ]; then
+				debug "Directory '$emkdirTargetdir' already have permission set on '$emkdirPermission'"
+			else
+				die 255 "Checking permission for '$emkdirTargetdir'"
+			fi ;;
+		*) die 2 "Second argument '$emkdirPermission' does not match syntax '[0-9][0-9][0-9][0-9]'"
+	esac
+
+	# Check user permission
+	if [ -n "$emkdirUserperm" ]; then
+		if [ "$(stat -c "%U" "$emkdirTargetdir" 2>/dev/null)" != "$emkdirUserperm" ]; then
+			debug "Changing user permission of '$emkdirTargetdir' on '$emkdirUserperm'"
+			chown "$emkdirUserperm" "$emkdirTargetdir" || die 1 "Unable to change user permission of '$emkdirTargetdir' on '$emkdirUserperm'"
+		elif [ "$(stat -c "%U" "$emkdirTargetdir" 2>/dev/null)" = "$emkdirUserperm" ]; then
+			debug "User permission of '$emkdirTargetdir' is already '$emkdirUserperm'"
+		else
+			die 255 "emkdir checking for userperm"
+		fi
+	elif [ -n "$emkdirUserperm" ]; then
+		debug "User permission for '$emkdirTargetdir' is not specified, skipping changing"
+	else
+		die 255 "emkdir check for userperm variable"
+	fi
+
+	# Check group permission
+	if [ -n "$emkdirGroupperm" ]; then
+		if [ "$(stat -c "%G" "$emkdirTargetdir" 2>/dev/null)" != "$emkdirGroupperm" ]; then
+			debug "Changing group permission of '$emkdirTargetdir' on '$emkdirGroupperm'"
+			chgrp "$emkdirGroupperm" "$emkdirTargetdir" || die 1 "Unable to change group permission of '$emkdirTargetdir' on '$emkdirGroupperm'"
+		elif [ "$(stat -c "%G" "$emkdirTargetdir" 2>/dev/null)" = "$emkdirGroupperm" ]; then
+			debug "Group permission of '$emkdirTargetdir' is already '$emkdirGroupperm'"
+		else
+			die 255 "Checking group permission of '$emkdirTargetdir'"
+		fi
+	elif [ -z "$emkdirGroupperm" ]; then
+		debug "Group permission is not specified for '$emkdirTargetdir', skipping change"
+	else
+		die 255 "emkdir checking for groupperm variable"
+	fi
+
+	unset emkdirTargetdir emkdirPermission emkdirUserperm emkdirGroupperm
+}