automakefile

#!/bin/bash
##
## EPITECH PROJECT, 2020
## Automakefile
## File description:
## Make file creator script in bash
##

function get_config()
{
    local searched_value="${1};"
    local len=${#searched_value}
    value=$(cat $config | grep ^$searched_value | cut -d ';' -f 2)
}

function check_value()
{
    if [[ -z $1 ]]; then
        value=$2
    fi
}

function fwrite()
{
    echo -e "$1\t" >> $2
}

function header()
{
    fwrite "##" $1
    fwrite "## EPITECH PROJECT, 2020" $1
    fwrite "## Makefile" $1
    fwrite "## File descritpion:" $1
    fwrite "## Makefile generated by Prism's Automakefile" $1
    fwrite "##\n" $1
}

###################################
##### Beginning of the script #####
###################################

## Argument check
 
if [[ $# != 1 ]]
then 
    echo -e "\e[91mBad argument, \e[94musage : ./automakefile [Config file]";
    exit 84
fi

## Check config existence and get Makefile directory

config=$1;
dir=`dirname $1`

if [[ -f $config ]];
then
    echo -e "\e[92mConfig file found !";
else
    echo -e "\e[91mConfig file given doesn't exist, exiting..."; exit 84
fi

if [[ -f "$dir/Makefile" ]] 
then
    rm -f "$dir/Makefile"
fi

touch "$dir/Makefile"

## Get Makefile needed values ##

header "$dir/Makefile"

value=
get_config EXEC
check_value value a.out
if [[ -z $value ]]
then
    value="a.out"
fi

fwrite "NAME = $value\n" "$dir/Makefile"

value=
get_config CC

if [[ -z $value ]]
then
    value="gcc"
fi

fwrite "CC = $value\n" "$dir/Makefile"
value=
fwrite "RM = rm -f\n" "$dir/Makefile"

SOURCES_DIR=`grep '^SOURCES_DIR;' $1 | cut -d";" -f 2`
PROJECT_DIR=`grep '^PROJECT_DIR;' $1 | cut -d";" -f 2`

if [[ -z $PROJECT_DIR ]]; then
    echo -e "\e[91mNo project directory found, exiting..."
    rm -f "$dir/Makefile"
    exit 84
elif [[ $PROJECT_DIR = "." ]]; then
    echo -e "\e[91mNo project directory found, exiting..."
    rm -f "$dir/Makefile"
    exit 84
fi

echo -e "\e[92mProject directory found"

SOURCES=($(grep -E '\.c;' $1 | cut -d ";" -f1))
SOURCES_NBR=${#SOURCES[@]}

if [[ -z $SOURCES ]]; then
    echo -e "\e[91mNo source file given, exiting..."
    rm -f "$dir/Makefile"
    exit 84
fi

echo -e -n "SRCS\t= " >> "$dir/Makefile"
echo -e "\e[92mSources found";

for (( i = 0; i != SOURCES_NBR; i++)); do 
    echo -e "\t${SOURCES[i]} \\" >> "$dir/Makefile"
done
echo -e "" >> "$dir/Makefile"

value=
echo -e -n "OBJS = $" >> "$dir/Makefile"
echo -e "(SRCS:.c=.o)\n" >> "$dir/Makefile"

fwrite "ZIPNAME = archive\n" "$dir/Makefile"

get_config ZIP
if [[ -z $value ]]
then
    value="tar"
fi

fwrite "ZIP = $value\n" "$dir/Makefile"
value=

get_config ZIPFLAGS
if [[ -z $value ]]
then
    value="-cvvf"
fi

fwrite "ZIPFLAGS = $value\n" "$dir/Makefile"
value=

get_config UNZIP
if [[ -z $value ]]
then
    value="tar"
fi

fwrite "UNZIP = $value\n" "$dir/Makefile"
value=

get_config UNZIPFLAGS
if [[ -z $value ]]
then
    value="-xvf"
fi

fwrite "UNZIPFLAGS = $value\n" "$dir/Makefile"
value=

fwrite "BCK_DIR = backup\n" "$dir/Makefile"

CFLAGS=`grep '^CFLAGS;' $1 | cut -d";" -f 2`
fwrite "CFLAGS += $CFLAGS\n" "$dir/Makefile"

## all flag

echo -e -n "all: $" >> "$dir/Makefile"
echo -e "(NAME)\n" >> "$dir/Makefile"

echo -e -n "$" >> "$dir/Makefile"
echo -e -n "(NAME): $" >> "$dir/Makefile"
echo -e -n "(OBJS)\n\t$" >> "$dir/Makefile"
echo -e -n "(CC) $" >> "$dir/Makefile"
echo -e -n "(OBJS) -o $" >> "$dir/Makefile"
echo -e -n "(NAME) $" >> "$dir/Makefile"
echo -e "(CFLAGS)" >> "$dir/Makefile"

## clean flag with temporary files and -O2 also being deleted

fwrite "clean:" "$dir/Makefile"
echo -e -n "\t$" >> "$dir/Makefile"
echo -e -n "(RM) $" >> "$dir/Makefile"
echo -e "(OBJS)" >> "$dir/Makefile"
echo -e "\tfind -name '*.gcno' -delete" >> "$dir/Makefile"
echo -e "\tfind -name '*.gcna' -delete" >> "$dir/Makefile"
echo -e "\tfind -name '*~' -delete" >> "$dir/Makefile"
echo -e "\tfind -name '#*#' -delete\n" >> "$dir/Makefile"

## fclean flag

fwrite "fclean: clean" "$dir/Makefile"
echo -e -n "\t$" >> "$dir/Makefile"
echo -e -n "(RM) $" >> "$dir/Makefile"
echo -e "(NAME)\n" >> "$dir/Makefile"

## re flag

fwrite "re: fclean all\n" "$dir/Makefile"

## .PHONY

fwrite ".PHONY: all clean fclean re archive revert delete\n" "$dir/Makefile"

## Archive flag

fwrite "archive:" "$dir/Makefile"
echo -e -n "\t$" >> "$dir/Makefile"
echo -e -n "(ZIP) $" >> "$dir/Makefile"
echo -e -n "(ZIPFLAGS) $" >> "$dir/Makefile"
echo -e -n "(ZIPNAME) $" >> "$dir/Makefile"
echo -e "(SRCS)" >> "$dir/Makefile"
echo -e -n "\tmv $" >> "$dir/Makefile"
echo -e -n "(ZIPNAME) $" >> "$dir/Makefile"
echo -e "(BCK_DIR)\n" >> "$dir/Makefile"

## revert flag

fwrite "revert:" "$dir/Makefile"
echo -e -n "\trm -f $" >> "$dir/Makefile"
echo -e "(SRCS)" >> "$dir/Makefile"
echo -e -n "\t$" >> "$dir/Makefile"
echo -e -n "(UNZIP) $" >> "$dir/Makefile"
echo -e -n "(UNZIPFLAGS) $" >> "$dir/Makefile"
echo -e -n "(BCK_DIR)/$" >> "$dir/Makefile"
echo -e "(ZIPNAME)\n" >> "$dir/Makefile"

## delete flag

fwrite "delete:" "$dir/Makefile"
echo -e -n "\t$" >> "$dir/Makefile"
echo -e -n "(RM) $" >> "$dir/Makefile"
echo -e "(ZIPNAME)" >> "$dir/Makefile"

echo -e "\e[92mFlags written"

echo -e "\e[92mVersion log created"

touch $PROJECT_DIR/.version

echo -e "\e[33m\e[1mMakefile successfully created !\e[0m";