boilerplater

#!/usr/bin/env bash
##############################################################################
#
# boilerplater
# ------------
# A simple utility to copy a file to a new location with a new name, and then
# immediately start editing it. For boilerplates.
#
# You should create a file containing the boilerplate to use, see the examples
# boilerplate-bash and boilerplate-python, and then (probably in your
# .bashrc) do:
#     
#     alias boilerpy="/path/to/boilerplate.sh boilerplate-python "
#
# and use that alias like this "$ boilerpy foobar.py".
#
# @author Isis Agora Lovecruft, 0x2cdb8b35
# @date 16 May 2012
# @version 0.0.1
##############################################################################

## Local variables:
AUTHOR_NAME="Isis Agora Lovecruft"
AUTHOR_GPG_KEY="0x2cdb8b35"

function usage () {
    echo "Usage: $0 <boilerplate_file> <new_file_name>"
    echo
    echo "You should set the following environment variables:"
    echo "\$AUTHOR_NAME          The name to be credited"
    echo "\$AUTHOR_GPG_KEY       The GPG keyID or email address of the author"
    echo "\$EDITOR               Your preferred editor"
    echo
}    

if [[ "$#" != "2" ]]; then
    usage
else
    echo "Please provide a short docstring description of the file "
    echo "which you are about to create: "
        
    read FDOCSTR

    ## If docstring is blank, boilerplate that too:
    if [[ "x${FDOCSTR}" == "x" ]] ; then
        FDOCSTR="XXX fill me in"
    fi

    ## Wrap docstring lines:
    INT=0
    while [[ ${#FDOCSTR} > 75 ]] ; do
        NEWSTR=FDOCSTR_${INT}
        eval ${NEWSTR}="# "${FDOCSTR:0:75}
        INT=$(( $INT + 1 ))
        FDOCSTR=${FDOCSTR:75:}
    done

    if [[ x$1 == x*sh ]] ; then
        cat >$2 <<-EOF
#!/usr/bin/env bash
##############################################################################
#
# $2
# -------------------
EOF

        if [[ $INT -gt "0" ]] ; then
            for int in `seq 0 $INT`; do
                cat >>$2 <<EOF
$($FDOCSTR_$int)
EOF
            done
        fi

        cat >>$2 <<EOF
# $FDOCSTR
#
# @author $AUTHOR_NAME, $AUTHOR_GPG_KEY
# @date `date "+%e %B %Y"`
# @version 0.0.1
##############################################################################


EOF

    elif [[ x$1 == x*py ]] || [[ x$1 == x*python ]] ; then
        cat >$2 <<-EOF
#!/usr/bin/env python
#-*- coding: utf-8 -*-
##############################################################################
#
# $2
# --------------------
EOF

        if [[ $INT > 0 ]] ; then
            for int in `seq 0 $INT`; do
                CURRENT_STR=FDOCSTR_$int
                cat >>$2 <<<$CURRENT_STR
            done
        fi

        cat >>$2 <<-EOF
# $FDOCSTR
#
# @author $AUTHOR_NAME, $AUTHOR_GPG_KEY
# @date `date "+%e %B %Y"`
# @version 0.0.1
##############################################################################

import os


def foo():
    """
    
    """
    pass


if __name__ == "__main":
    

EOF
    else
        cp $1 $2
    fi
    ## Make it executable and start the editor
    chmod +x $2
    $EDITOR $2
fi