Settings for installing and utilizing Ruby snapshots

setting-ruby.zsh

# settings for installing and utilizing Ruby snapshots

# function:
#   ruby-snss-install
#   ruby-snapshot-install
#   ruby-sn-install
#   ruby-stable-snapshot-install
#   ruby-ss-install
#   ruby-install
#   use-ruby-snapshot
#   use-ruby-sn
#   use-ruby-stable-snapshot
#   use-ruby-ss
#   eng

# environment variable:
#   HOME_BIN
#   RUBY_SN_DIR
#   RUBY_SN
#   RUBY_SS_DIR
#   RUBY_SS

export HOME_BIN=$HOME/bin

if [ -d $HOME_BIN ]
then
    for d in $HOME_BIN/*
    do
        if [ -d $d/bin ]
        then
            PATH=$d/bin:$PATH
        fi
    done
fi

function ruby-snss-install() {
    local ECHO=""
    local today=$(date '+%Y%m%d')
    local ssflag=1
    local instdir="ruby"
    local configopt=""
    local uri base dir1 dir2 tgz

    if [[ $# != 0 ]]
    then
        instdir=$1
        shift
        if [[ $# != 0 ]]
        then
            ssflag=$1
            shift
        fi
    fi
    if [[ $ssflag = "1" ]]
    then
        # stable snapshot (ruby 2.0.0)
        uri=ftp://ftp.ruby-lang.org/pub/ruby/stable-snapshot.tar.gz
        base=ruby-ss-$today
    else
        # snapshot (ruby 2.1.0dev)
        uri=ftp://ftp.ruby-lang.org/pub/ruby/snapshot.tar.gz
        base=ruby-sn-$today
    fi
    dir1=${base}_tmp
    dir2=$base
    tgz=$base.tgz
    $ECHO pushd $HOME/src
    [ -f $tgz ] || $ECHO wget -O $tgz $uri
    $ECHO mkdir $dir1
    $ECHO tar xvzfC $tgz $dir1
    $ECHO mv $dir1/r* $dir2
    $ECHO rmdir $dir1
    $ECHO cd $dir2
    # As for ARCHI, get access to https://gist.github.com/takehiko/6543175
    if [[ ${+ARCHI} = 1 && $ARCHI = "linux" ]]
    then
        configopt="${configopt} --enable-pthread"
    fi
    $ECHO ./configure --prefix=$HOME_BIN/$instdir ${=configopt}
    $ECHO make
    $ECHO make install
    $ECHO popd
}

function ruby-snapshot-install() {
    ruby-snss-install ruby 0
}
alias ruby-sn-install=ruby-snapshot-install

function ruby-stable-snapshot-install() {
    ruby-snss-install .ruby-ss
}
alias ruby-ss-install=ruby-stable-snapshot-install

function ruby-install() {
    ruby-sn-install
    ruby-ss-install
}

export RUBY_SN_DIR=$HOME_BIN/ruby/bin
if [ -d $RUBY_SN_DIR ]
then
    function use-ruby-snapshot () {
        PATH=$RUBY_SN_DIR:$PATH
        rehash
    }
    alias use-ruby-sn=use-ruby-snapshot
    export RUBY_SN=$RUBY_SN_DIR/ruby
fi

export RUBY_SS_DIR=$HOME_BIN/.ruby-ss/bin
if [ -d $RUBY_SS_DIR ]
then
    function use-ruby-stable-snapshot () {
        PATH=$RUBY_SS_DIR:$PATH
        rehash
    }
    alias use-ruby-ss=use-ruby-stable-snapshot
    export RUBY_SS=$RUBY_SS_DIR/ruby
fi

# You may execute "eng" when using Cygwin to avoid folk-related errors.
alias eng='LANG=C LANGUAGE=C LC_ALL=C'