feat(open-url): add support for opening a url across platforms

src/scripts/open-url.sh

@@ -0,0 +1,18 @@
+open-url() {
+    local url="$1"
+
+    if [ -z "${1:-}" ]; then
+        echo "open-url: url must be supplied"
+        return 1
+    fi
+
+    for cmd in open gnome-open kde-open xdg-open sensible-browser; do
+        if type "$cmd" 1>/dev/null 2>&1; then
+            echo "opening $url via $cmd..."
+            "$cmd" "$url"
+            return 0
+        fi
+    done
+
+    return 1
+}

src/scripts/update-prompt.sh

@@ -13,6 +13,7 @@ function update-prompt() {
         return 1
     fi
 
+    local CHANGELOG_URI="https://github.com/pulsebridge/prompt/blob/master/CHANGELOG.md"
     local UPDATE_URI="https://github.com/pulsebridge/prompt/archive/master.tar.gz"
     local UPDATE_TEMP=$(mktemp -d -t pb_prompt)
 
@@ -24,4 +25,6 @@ function update-prompt() {
     popd 1>/dev/null
 
     rm -rf $UPDATE_TEMP 1>/dev/null
+
+    open-url $CHANGELOG_URI 1>/dev/null
 }