Setup script for Coursera's Algorithms I class. Downloads the relevant files and massages them into a /path/to/class/{bin,lib} structure.

algo-i-setup.sh

#!/bin/bash

# Load class materials for Coursera's 'Algorithms I' course into the directory
# specified on the command line. Files will be downloaded directly from the
# class book site, maven and ellotheth's Makefile samples. Where appropriate,
# hard-coded paths (in e.g. source files and shell scripts) will be replaced
# by the user-specified path.
#
# USAGE
#   $ chmod +x algo-i-setup.sh
#   $ ./algo-i-setup.sh /path/to/algo-i
#   $ source /path/to/algo-i/bin/configrc
#
# DEPENDENCIES
#   - wget
#   - sed
#   - unzip
#
# TROUBLESHOOTING
#   http://algs4.cs.princeton.edu/linux/
#
# Final structure:
#
# root (from command line)
# +-- bin
# |   +-- checkstyle [http://algs4.cs.princeton.edu/linux/checkstyle]
# |   +-- findbugs   [http://algs4.cs.princeton.edu/linux/findbugs]
# |   +-- configrc   [http://algs4.cs.princeton.edu/linux/config.sh]
# |   +-- drjava     [http://algs4.cs.princeton.edu/linux/drjava]
# +-- lib
# |   +-- checkstyle*        [http://algs4.cs.princeton.edu/linux/checkstyle.zip]
# |   |   +-- checkstyle.xml [http://algs4.cs.princeton.edu/linux/checkstyle.xml]
# |   +-- findbugs*          [http://algs4.cs.princeton.edu/linux/findbugs.zip]
# |   |   +-- findbugs.xml   [http://algs4.cs.princeton.edu/linux/findbugs.xml]
# |   +-- algs4.jar          [http://algs4.cs.princeton.edu/code/algs4.jar]
# |   +-- drjava.jar         [http://algs4.cs.princeton.edu/linux/drjava.jar]
# |   +-- stdlib.jar         [http://algs4.cs.princeton.edu/code/stdlib.jar]
# |   +-- junit.jar          [http://search.maven.org/remotecontent?filepath=junit/junit/4.11/junit-4.11.jar]
# |   +-- hamcrest-core.jar  [http://search.maven.org/remotecontent?filepath=org/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3.jar]
# +-- Makefile.sample [https://gist.github.com/ellotheth/6315832/raw/Makefile]
# +-- common.mk       [https://gist.github.com/ellotheth/6315832/raw/common.mk]
#

if [ -z "$1" ]; then
    echo Specify a path for the Algorithms I class materials
    exit 1
elif [ "${1/ /}" != "$1" ]; then
    echo Spaces in your path? Really? This is Linux. Get it together.
    exit 1
fi

# get the full path
root=`readlink -m $1`
bin=$root/bin
lib=$root/lib

[ -d $bin ] || mkdir -p $bin || (echo "Failed to make $bin" && false) || exit 1
[ -d $lib ] || mkdir -p $lib || (echo "Failed to make $lib" && false) || exit 1

# get the java libs, including junit
wget -nv -O $lib/drjava.jar http://algs4.cs.princeton.edu/linux/drjava.jar
wget -nv -O $lib/stdlib.jar http://algs4.cs.princeton.edu/code/stdlib.jar
wget -nv -O $lib/algs4.jar http://algs4.cs.princeton.edu/code/algs4.jar
wget -nv -O $lib/junit.jar http://search.maven.org/remotecontent?filepath=junit/junit/4.11/junit-4.11.jar
wget -nv -O $lib/hamcrest-core.jar http://search.maven.org/remotecontent?filepath=org/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3.jar

# get the course utilities
wget -nv -O checkstyle.zip http://algs4.cs.princeton.edu/linux/checkstyle.zip
wget -nv -O findbugs.zip http://algs4.cs.princeton.edu/linux/findbugs.zip
wget -nv -O checkstyle.xml http://algs4.cs.princeton.edu/linux/checkstyle.xml
wget -nv -O findbugs.xml http://algs4.cs.princeton.edu/linux/findbugs.xml

# unpack checkstyle and findbugs
unzip -q checkstyle.zip
unzip -q findbugs.zip
rm {checkstyle,findbugs}.zip
mv checkstyle.xml checkstyle*/.
mv findbugs.xml findbugs*/.
mv {checkstyle,findbugs}* $lib/.

# get the executables (shell scripts)
wget -nv -O checkstyle http://algs4.cs.princeton.edu/linux/checkstyle
wget -nv -O findbugs http://algs4.cs.princeton.edu/linux/findbugs
wget -nv -O drjava http://algs4.cs.princeton.edu/linux/drjava
wget -nv -O configrc http://algs4.cs.princeton.edu/linux/config.sh

# replace the hard-coded paths from the algs class with the user-specified dir
sed "s|~/algs4|$lib|" drjava > $bin/drjava
sed "s|~/algs4|$lib|" checkstyle > $bin/checkstyle
sed "s|~/algs4|$lib|" findbugs > $bin/findbugs
sed -e "s|\$HOME/algs4/bin|$bin|g" \
    -e "s|\$HOME/algs4|$lib|g" \
    -e "s|algs4\.jar$|algs4\.jar:$lib/junit.jar:$lib/hamcrest-core.jar|" \
    configrc > $bin/configrc
rm drjava checkstyle findbugs configrc
chmod +x $bin/*

# get the makefiles
wget -nv -O common.mk https://gist.github.com/ellotheth/6315832/raw/common.mk
wget -nv -O $root/Makefile.sample https://gist.github.com/ellotheth/6315832/raw/Makefile

sed "s|ALGO = .*|ALGO = $root|" common.mk > $root/common.mk
rm common.mk

if [ ! `which javac` ]; then
    echo "You don't have a Java compiler in your path. Try openjdk-7-jdk." >&2
fi