Make wget available using curl as fallback

README.md

@@ -63,6 +63,15 @@ To install the image named juju-x86\_64.tar.gz:
 
     # juju -i juju-x86_64.tar.gz
 
+Dependencies
+------------
+JuJu comes with a very short list of dependencies in order to be installed in most
+of GNU/Linux distributions. The dependencies needed to be in the host OS are:
+- bash
+- wget or curl
+- mkdir
+- linux kernel 2.6.32
+
 Troubleshooting
 ---------------
 - **Q**: Why do I get the error "Cannot find the gzip binary required for compressing man and info pages." when I try to install package with yaourt?

bin/juju

@@ -84,14 +84,6 @@ for arg do
     ARGS+=($arg)
 done
 
-############## CHECKING ESSENTIAL  COMMANDS ####################
-# Check if the essentials commands are installed (wget and tar)
-if ! which wget &> /dev/null || ! which tar &> /dev/null
-then
-    error "Error: wget and tar commands are essentials for JuJu. Get them first."
-	exit 1
-fi
-
 ################ DEFINE ACTION ########################
 if $OPT_SETUP_FROM_FILE; then
 	setup_from_file_juju ${ARGS[@]}

lib/core.sh

@@ -32,9 +32,19 @@ source "$(dirname ${BASH_ARGV[0]})/util.sh"
 JUJU_REPO=https://bitbucket.org/fsquillace/juju-repo/raw/master
 ORIGIN_WD=$(pwd)
 
-# Define the variables for the dependency commands bash, wget, tar, which, awk, grep, xz, file
-WGET="wget --no-check-certificate"
+# The essentials executables that MUST exist in the host OS are (wget|curl), bash, mkdir
+if command -v wget > /dev/null 2>&1
+then
+    WGET="wget --no-check-certificate"
+elif command -v curl > /dev/null 2>&1
+then
+    WGET="curl -J -O -k"
+else
+    error "Error: Either wget or curl commands must be installed"
+    exit 1
+fi
 TAR=tar
+
 PROOT="${JUJU_HOME}/lib64/ld-linux-x86-64.so.2 --library-path ${JUJU_HOME}/usr/lib:${JUJU_HOME}/lib ${JUJU_HOME}/usr/bin/proot"
 ################################# MAIN FUNCTIONS ##############################