refactor bootstrap

.config/yadm/bootstrap

@@ -6,6 +6,19 @@
 
 set -eu
 
+# Download file and return filename
+function download () {
+    [[ $# == 0 ]] && exit 1
+
+    local url="$1"
+    local suffix="${2:-"${url##*.}"}"
+    local filename="$(mktemp -t "download-XXXXXX.${suffix}")"
+
+    curl --location --output "${filename}" -# "${url}"
+
+    echo "${filename}"
+}
+
 # Directory to look for bootstrap executables in
 BOOTSTRAP_D="${BASH_SOURCE[0]}.d"
 

.config/yadm/bootstrap.d/install-kitty

@@ -1,5 +1,7 @@
 #!/bin/bash
 
+set -eu
+
 KITTY_VERSION="0.25.2"
 KITTY_INSTALL_DIR="${HOME}/apps/kitty"
 KITTY_CURRENT_VERSION=""
@@ -12,10 +14,9 @@ if [[ "$KITTY_VERSION" != "$KITTY_CURRENT_VERSION" ]] ; then
   echo "Installing kitty version ${KITTY_VERSION}..."
   
   URL="https://github.com/kovidgoyal/kitty/releases/download/v${KITTY_VERSION}/kitty-${KITTY_VERSION}-x86_64.txz"
-  TARGET="$(mktemp -t kitty-XXXXXX.txz)"
   
   echo "Downloading from ${URL}..."
-  curl --location --output "${TARGET}" -# "${URL}"
+  TARGET="$(download "$URL")"
   
   if [[ -d "${KITTY_INSTALL_DIR}" ]] ; then
     echo "Removing old kitty installation..."