Update package version to 1.8.0

pkg.info

@@ -1,6 +1,6 @@
 name: python-shtab
 description: Automagic shell tab completion for Python CLI applications
-version: 1.7.2
+version: 1.8.0
 revision: 1
 url: https://github.com/iterative/shtab
 license: Apache-2.0
@@ -14,3 +14,8 @@ make_depends:
   - python-installer
   - python-setuptools-scm
   - python-wheel
+downloads:
+  - url: https://github.com/iterative/shtab/archive/refs/tags/v${BPM_PKG_VERSION}.tar.gz
+    extract_to: ${BPM_SOURCE}
+    extract_strip_components: 1
+    checksum: 43367fbfbb3226d4f0dd89873d13ba5d0a0be1b03354600af0f08923c598a604

source.sh

@@ -2,16 +2,6 @@
 # BPM Expects the source code to be extracted into the automatically created 'source' directory which can be accessed using $BPM_SOURCE
 # BPM Expects the output files to be present in the automatically created 'output' directory which can be accessed using $BPM_OUTPUT
 
-DOWNLOAD="https://github.com/iterative/shtab/archive/refs/tags/v${BPM_PKG_VERSION}.tar.gz"
-FILENAME="${DOWNLOAD##*/}"
-
-# The prepare function is executed in the root of the temp directory
-# This function is used for downloading files and putting them into the correct location
-prepare() {
-  wget "$DOWNLOAD"
-  tar -xvf "$FILENAME" --strip-components=1 -C "$BPM_SOURCE"
-}
-
 # The build function is executed in the source directory
 # This function is used to compile the source code
 build() {