236 lines
7.6 KiB
Bash
236 lines
7.6 KiB
Bash
#!/usr/bin/env bash
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# Begin profile
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# ------------------------------------------------------------------------------
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# Copyright (c) 2013-2022 Geoffray Levasseur <fatalerrors@geoffray-levasseur.org>
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# Protected by the BSD3 license. Please read bellow for details.
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#
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# * Redistribution and use in source and binary forms,
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# * with or without modification, are permitted provided
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# * that the following conditions are met:
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# *
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# * Redistributions of source code must retain the above
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# * copyright notice, this list of conditions and the
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# * following disclaimer.
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# *
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# * Redistributions in binary form must reproduce the above
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# * copyright notice, this list of conditions and the following
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# * disclaimer in the documentation and/or other materials
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# * provided with the distribution.
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# *
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# * Neither the name of the copyright holder nor the names
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# * of any other contributors may be used to endorse or
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# * promote products derived from this software without
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# * specific prior written permission.
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# *
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# * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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# * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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# * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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# * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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# * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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# * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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# * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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# * OF SUCH DAMAGE.
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# ------------------------------------------------------------------------------
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if [[ ! $SHELL =~ bash|zsh ]]; then
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echo "That environment script is designed to be used with bash or zsh being the shell."
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echo "Please consider using bash or zsh instead, or patch me ;)!"
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return 1
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fi
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# ------------------------------------------------------------------------------
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# path* : private functions for PATH variable management
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pathremove()
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{
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local IFS=':'
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local newpath
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local dir
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local pathvar=${2:-PATH}
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for dir in ${!pathvar}; do
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if [ "$dir" != "$1" ]; then
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newpath=${newpath:+$newpath:}$dir
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fi
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done
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export $pathvar="$newpath"
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}
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pathprepend()
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{
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pathremove $1 $2
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local pathvar=${2:-PATH}
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export $pathvar="$1${!pathvar:+:${!pathvar}}"
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}
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pathappend()
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{
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pathremove $1 $2
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local pathvar=${2:-PATH}
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export $pathvar="${!pathvar:+${!pathvar}:}$1"
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}
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# ------------------------------------------------------------------------------
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# ------------------------------------------------------------------------------
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# Configuration file parser
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parse_conf()
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{
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local config_file="$1"
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local current_section=""
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[[ ! -f "$config_file" ]] && return 1
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while IFS='=' read -r key value || [[ -n "$key" ]]; do
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# Clean key and value (strip CR and whitespace)
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key=$(printf '%s' "$key" | tr -d '\r' | xargs 2>/dev/null)
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value=$(printf '%s' "$value" | tr -d '\r' | xargs 2>/dev/null)
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# Skip comments and empty lines
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[[ -z "$key" || "$key" =~ ^[#\;] ]] && continue
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# Section Detection: [section_name]
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if [[ "$key" =~ ^\[(.*)\]$ ]]; then
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current_section="${BASH_REMATCH[1]}"
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# Dynamically declare the associative array for this section
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declare -g -A "CONF_$current_section"
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continue
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fi
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# If we have a key/value pair and are inside a section
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if [[ -n "$current_section" && -n "$value" ]]; then
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# Strip quotes from value
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value="${value%\"}"; value="${value#\"}"
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value="${value%\'}"; value="${value#\'}"
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# Store in the dynamic array: CONF_sectionname[key]=value
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eval "CONF_${current_section}['$key']='$value'"
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fi
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done < "$config_file"
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}
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# ------------------------------------------------------------------------------
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# ------------------------------------------------------------------------------
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# Load command aliases from configuration
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load_alias()
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{
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local section_name="CONF_$1"
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# Check if the associative array for this section exists
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if [[ "$(declare -p "$section_name" 2>/dev/null)" != "declare -A"* ]]; then
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return 1
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fi
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# Reference the array keys
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eval "local keys=\"\${!$section_name[@]}\""
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for key in $keys; do
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# Fetch the value for this specific key
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eval "local cmd=\"\${$section_name[$key]}\""
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# Portability check: only alias if the command exists
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local base_cmd=$(echo "$cmd" | awk '{print $1}')
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if command -v "$base_cmd" >/dev/null 2>&1; then
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alias "$key"="$cmd"
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fi
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done
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}
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# ------------------------------------------------------------------------------
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# ------------------------------------------------------------------------------
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# Load configuration values as environment variables
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load_conf()
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{
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local section_name="CONF_$1"
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if [[ "$(declare -p "$section_name" 2>/dev/null)" != "declare -A"* ]]; then
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return 1
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fi
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eval "local keys=\"\${!$section_name[@]}\""
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for key in $keys; do
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eval "local val=\"\${$section_name[$key]}\""
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# Export as a standard shell variable
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export "$key"="$val"
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done
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}
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# ------------------------------------------------------------------------------
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# ------------------------------------------------------------------------------
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# ------------------------------------------------------------------------------
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# ********************************** MAIN PROGRAM ******************************
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# ------------------------------------------------------------------------------
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# ------------------------------------------------------------------------------
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# Store script's path (realpath -s resolve symlinks if profile.sh is a symlink)
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if [[ -z "$PROFILE_PATH" ]]; then
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export MYPATH=$(dirname "$(realpath -s "$0")")
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else
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export MYPATH="$PROFILE_PATH"
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fi
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if [[ ! -e "$MYPATH/profile.sh" ]]; then
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echo "[ Warning ] Path detection failed, trying to use pwd..."
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MYPATH=$(pwd)
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if [[ ! -e "$MYPATH/profile.sh" ]]; then
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echo "[ Error ] Impossible to determine installation path, pretty much nothing will work."
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fi
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fi
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if [[ ! -s "$MYPATH/version" ]]; then
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echo "[ Warning ] Impossible to determine running version of profile, your installation might be broken."
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fi
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export PROFVERSION=$(cat "$MYPATH"/version)
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# Build PATH environment variable
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if [[ $EUID -eq 0 ]]; then
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pathappend /sbin:/usr/sbin
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fi
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[[ -d ~/bin ]] && pathappend ~/bin
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[[ -d ~/.local/bin ]] && pathappend ~/.local/bin
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# Parse and load general configuration
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export PROFILE_CONF="$MYPATH/profile.conf"
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parse_conf "$PROFILE_CONF"
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load_conf system # Load Bash system behavior configuration (history, pager, etc.)
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load_conf general # General purpose configuration (compilation flags, etc.)
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# Load module scripts
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for script in $MYPATH/profile.d/*.sh; do
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if [[ -r $script ]]; then
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. $script
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fi
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done
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# Interactive shell detection, two methods available each one of those might have different result
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# depending on distribution
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#shopt -q login_shell && INTERACTIVE=1
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[[ $- == *i* ]] && export INTERACTIVE=1
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if [[ $INTERACTIVE ]]; then
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# For compiling (as we often compile with LFS/0linux...)
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#Aliases
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load_alias aliases
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# Define PS1
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trap 'timer_start' DEBUG
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PROMPT_COMMAND='set_prompt'
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# Set default language
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setfr
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showinfo && printf "\n"
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check_updates -q
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disp I "Profile version $PROFVERSION chargé..."
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fi
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# Cleanup
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unset pathremove pathprepend pathappend
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#return 0
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# End profile.sh
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