Switch to new download format and fix pkgconfig file version

pkg.info

@@ -1,9 +1,21 @@
 name: gpgmepp
 description: C++ bindings for gpgme
 version: 2.0.0
+revision: 2
 url: https://gnupg.org/software/gpgme/index.html
 license: LGPL2-or-later
 architecture: any
-depends: ["gcc-libs","glibc","gpgme","libgpg-error"]
-make_depends: ["cmake"]
 type: source
+depends:
+  - gcc-libs
+  - glibc
+  - gpgme
+  - libgpg-error
+make_depends:
+  - cmake
+downloads:
+  - url: https://dev.gnupg.org/source/gpgmepp.git
+    type: git
+    clone_to: ${BPM_SOURCE}
+    git_branch: gpgmepp-${BPM_PKG_VERSION}
+    checksum: 301d39f8b97a79369292280e201e45f472d71e91

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://www.gnupg.org/ftp/gcrypt/gpgmepp/gpgmepp-${BPM_PKG_VERSION}.tar.xz"
-FILENAME="${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() {