Provide support for FreeBSD.

FreeBSD does not by default install the Bourne-Again Shell (bash); and
when it is installed, it is most certainly not installed to
``/bin/bash`` due to the nuances of the conventions around local site
packages.  Rather, it is installed to ``/usr/local/bin/bash``.

Golang explicitly supports FreeBSD, so it should only be reasonable for
GVM to support this target, too.  As a fix, the shell script shebang
definitions now use the ``env`` tool that comes from the _coreutils_
standard package, which is installed on all conventions-adhering Linux
distributions, Mac OS X, and FreeBSD.

FreeBSD prerequisites are now listed in the documentation.

I have tested this against FreeBSD 9.0 release branch on the amd64,
and it works satisfactorily now.

README

@@ -46,7 +46,7 @@ To completely remove gvm and all installed Go versions and packages:
 
 If that doesn't work see the troubleshooting steps at the bottom of this page.
 
-Mac OSX Requirements
+Mac OS X Requirements
 ====================
     Install mercurial from http://mercurial.berkwood.com/
 
@@ -60,6 +60,13 @@ Linux Requirements
     sudo apt-get install bison
     sudo apt-get install gcc
 
+FreeBSD Requirements
+====================
+
+    sudo pkg_add -r bash
+    sudo pkg_add -r git
+    sudo pkg_add -r mercurial
+
 Troubleshooting
 ===============
 Sometimes especially during upgrades the state of gvm's files can get mixed up. This is mostly true for upgrade from older version than 0.0.8. Changes are slowing down and a LTR is imminent. But for now `rm -rf ~/.gvm` will always remove gvm. Stay tuned!

README.md

@@ -42,7 +42,7 @@ To completely remove gvm and all installed Go versions and packages:
 
     gvm implode
 
-Mac OSX Requirements
+Mac OS X Requirements
 ====================
     Install mercurial from http://mercurial.berkwood.com/
 
@@ -54,4 +54,12 @@ Linux Requirements
     sudo apt-get install make
     sudo apt-get install binutils
     sudo apt-get install bison
-    sudo apt-get install gcc
+    sudo apt-get install gcc
+
+FreeBSD Requirements
+====================
+
+    sudo pkg_add -r bash
+    sudo pkg_add -r git
+    sudo pkg_add -r mercurial
+

bin/gvm

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 if [ -z "$GVM_ROOT" ]; then
 	tput sgr0
 	tput setaf 1

bin/gvm-prompt

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 function gvm_prompt() {
 	if [[ "$1" == "g" ]]; then
 		echo $gvm_go_name

binscripts/gvm-installer

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 display_error() {
 	tput sgr0
 	tput setaf 1

scripts/alias

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 . $GVM_ROOT/scripts/functions
 
 command=$1

scripts/alias-create

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 . $GVM_ROOT/scripts/functions
 
 [[ $1 != "" ]] ||

scripts/alias-delete

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 . $GVM_ROOT/scripts/functions
 
 [[ $1 != "" ]] ||

scripts/alias-list

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 . $GVM_ROOT/scripts/functions
 
 echo

scripts/cross

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 . $GVM_ROOT/scripts/functions
 
 display_usage() {

scripts/diff

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 . $GVM_ROOT/scripts/functions
 
 version=$1

scripts/env/gvm

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 . $GVM_ROOT/scripts/functions || return 1
 
 function gvm() {

scripts/env/pkgset-use

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 function gvm_pkgset_use() {
 	[[ "$1" != "" ]] ||
 		display_error "Please specify a package set" || return 1

scripts/env/use

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 function gvm_use() {
 	[[ "$1" != "" ]] ||
 		display_error "Please specifiy the version" || return 1

scripts/function/tools

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 LS_ERROR="GVM couldn't find ls"
 GREP_ERROR="GVM couldn't find grep"
 SORT_ERROR="GVM couldn't find sort"

scripts/functions

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 for function in $GVM_ROOT/scripts/function/*; do
 	. $function
 done

scripts/get

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 . $GVM_ROOT/scripts/functions
 
 [[ -d $GVM_ROOT/.git ]] || mv $GVM_ROOT/git.bak $GVM_ROOT/.git &> /dev/null ||

scripts/gvm-check

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 . $GVM_ROOT/scripts/functions
 
 # Check for hg

scripts/install

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 . $GVM_ROOT/scripts/functions
 
 function show_usage() {

scripts/list

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 . $GVM_ROOT/scripts/functions
 
 echo

scripts/listall

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 . $GVM_ROOT/scripts/functions
 
 function show_usage() {

scripts/pkgset

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 . $GVM_ROOT/scripts/functions
 
 [[ $gvm_go_name != "" ]] || 

scripts/pkgset-create

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 . $GVM_ROOT/scripts/functions
 
 [[ $1 != "" ]] || 

scripts/pkgset-delete

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 . $GVM_ROOT/scripts/functions
 
 [[ $gvm_go_name != "" ]] || 

scripts/pkgset-empty

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 . $GVM_ROOT/scripts/functions
 
 [[ $gvm_pkgset_name != "" ]] ||

scripts/pkgset-list

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 . $GVM_ROOT/scripts/functions
 
 echo

scripts/templates/binary

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 . $GVM_ROOT/scripts/functions/tools
 echo $1 | sed -n -e '/_.*_/ p' | $GREP_PATH "_" &> /dev/null
 if [ "$?" == "0" ]; then

scripts/uninstall

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 . $GVM_ROOT/scripts/functions
 
 [[ "$1" == "" ]] && 

scripts/update

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 . $GVM_ROOT/scripts/functions
 
 cd $GVM_ROOT/archive/go &> /dev/null ||

tests/gvm_version

@@ -1,4 +1,4 @@
-#!/bin/bash -ex
+#!/usr/bin/env bash -ex
 TEST_OUTPUT=`gvm version`
 [ "$TEST_OUTPUT" != "" ]
 echo "Success!"