166 lines
3.2 KiB
Bash
166 lines
3.2 KiB
Bash
#!/bin/bash
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# This file contains script functions to help modifying files.
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# confirm_append Appends to the end of the file
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# confirm_replace Locates a line and replaces a substring
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#
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# The functions are controlled through variables:
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# file="/path/to/edited/file"
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# pattern="installed" Will skip if pattern matches. Leave empty to disable.
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#
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# confirm_append:
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# append="String to be appended.\n - Here's another line"
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#
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# confirm_replace:
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# line="Line search pattern"
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# search="String search pattern"
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# replace="Replace matched substring with this"
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# Text Colors:
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esc="\033["
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tc000="${esc}30m"
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tcf00="${esc}31m"
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tc0f0="${esc}32m"
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tcff0="${esc}33m"
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tc00f="${esc}34m"
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tcf0f="${esc}35m"
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tc0ff="${esc}36m"
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tcfff="${esc}37m"
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tcRst="${esc}0m"
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# Background Colors:
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bc000="${esc}40m"
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bcf00="${esc}41m"
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bc0f0="${esc}42m"
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bcff0="${esc}43m"
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bc00f="${esc}44m"
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bcf0f="${esc}45m"
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bc0ff="${esc}46m"
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bcfff="${esc}47m"
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check () {
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s=$?
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if [ "$s" = "0" ]; then
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printf "$tc0f0> Success!$tcRst\n"
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else
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printf "$tcf00> PhaiL!!!$tcRst\n$tcff0> Smash your head on keyboard to continue.$tcRst\n"
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read -n 1 -s > /dev/null
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fi
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return $s
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}
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confirm () {
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loop=1
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while [ "$loop" = "1" ]; do
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printf "Do you want to continue? [Y/n/?] "
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read -n 1 -s answer
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case "$answer" in
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"Y" | "y" | "" )
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printf "${tc0f0}Yes$tcRst\n"
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loop=0
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return 0
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;;
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"?" )
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printf "${tc00f}?$tcRst\nIt's really just a ${tc0f0}Yes$tcRst or ${tcf00}No$tcRst >:-[\n"
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;;
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"N" | "n" )
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printf "${tcf00}No$tcRst\n"
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loop=0
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return 1
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;;
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* )
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printf "${tcff0}$answer$tcRst\n"
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;;
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esac
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done
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}
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confirm_section () {
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confirm || {
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printf "$tc00f> Skipping entire section.$tcRst\n"
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exit 1
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}
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}
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backup () {
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printf "Creating backup ${file}~\n"
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cp -a "$file" "${file}~"
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check
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return $?
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}
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file_check () {
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s=0
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if [[ "$create" && ! -f "$file" ]]; then
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create=
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printf " Create $file\n"
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printf "$content" | tee "$file"
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check || return $?
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s=1
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fi
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if [[ "$owner" && "`stat -c %U:%G \"$file\"`" != "$owner" ]]; then
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printf " Change ownsership of $file\n"
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chown "$owner" "$file"
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check || return $?
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s=1
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fi
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if [[ "$perm" && "`stat -c %a \"$file\"`" != "$perm" ]]; then
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printf " Change permissions of $file\n"
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chmod "$perm" "$file"
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check || return $?
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s=1
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fi
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if [ "$s" = "0" ]; then
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printf "${tc00f}> SKIPPED:$tcRst Already applied\n"
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fi
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return 0
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}
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pattern_count () {
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awk "/$pattern/{n++}; END {print n+0}" "$file"
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}
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line_count () {
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awk "/$line/{n++}; END {print n+0}" "$file"
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}
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pattern_confirm () {
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if [ ! -f "$file" ]; then
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printf "${tcff0}> WARNING:$tcRst Could not find $file\n"
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return 1
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fi
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if [[ ( "$pattern" && "`pattern_count`" -gt "0" ) || ( ! "$pattern" && "`line_count`" = "0" ) ]]; then
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printf "${tc00f}> SKIPPED:$tcRst Already applied\n"
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return 1
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fi
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return 0
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}
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append () {
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printf "Appending to $file\n"
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printf "$append" | tee -a "$file" > /dev/null
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check
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return $?
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}
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replace () {
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printf "Scanning $file\n"
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result="`awk \"/$line/{sub(/$search/, \\\"$replace\\\")}; {print}\" \"${file}\"`"
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check && {
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printf "Writing $file\n"
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printf "$result" | tee "$file" > /dev/null
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}
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check
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return $?
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}
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confirm_append () {
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pattern_confirm && confirm && append
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return $?
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}
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confirm_replace () {
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pattern_confirm && confirm && replace
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return $?
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}
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