Add script to get latest Hugo release for Linux

scripts/get_hugo.sh

@@ -0,0 +1,36 @@
+#!/bin/bash -x
+# Get the latest release of Hugo from GitHub releases
+
+# Releases URL
+readonly RELEASES='https://api.github.com/repos/gohugoio/hugo/releases/latest'
+
+# JQ Filter
+SELECT='.browser_download_url'
+LINUX_FILT='test("Linux-64bit.tar.gz")'
+EXT_FILT='test("extended")'
+
+readonly FILTER=".assets[]|select($SELECT|$LINUX_FILT)|select($SELECT|$EXT_FILT)|$SELECT"
+
+if ! command -v curl &>/dev/null
+then
+    echo "Need curl in order to proceed" >&2
+    exit 1
+fi
+
+if ! command -v jq &>/dev/null
+then
+    echo "Need jq in order to proceed" >&2
+    exit 1
+fi
+
+# Get the path to the latest release tarball
+HUGO_TGZ=$(curl -sSL "$RELEASES" | jq "$FILTER" | sed 's/"//g')
+
+# Download the Hugo tarball and extract the hugo binary
+rm -f hugo
+curl -sSL "$HUGO_TGZ" | tar zxf - hugo || 
+    {
+        echo "Cannot find hugo" >&2
+        exit 1
+    }
+