fix(snap): build all packages from source

snap/snapcraft.yaml

@@ -127,7 +127,7 @@ parts:
     build-environment:
       # CFLAGS for Python 3.10 and libyaml. Allows cryptography and pyyaml to find
       # the appropriate system libraries.
-      - CFLAGS: "$(pkg-config python-3.10 yaml-0.1 --cflags)"
+      # - CFLAGS: "$(pkg-config python-3.10 yaml-0.1 --cflags)"
       # Build all packages from source. Prevents issues like #1369.
       # https://github.com/canonical/charmcraft/issues/1369
       - PIP_NO_BINARY: ":all:"
@@ -149,15 +149,17 @@ parts:
       rustup default 1.79
     override-build: |
       uv venv --relocatable $CRAFT_PART_INSTALL
-      uv sync --no-dev --no-editable --extra apt-jammy
+      uv sync --no-dev --no-editable --no-binary
+      . $CRAFT_PART_INSTALL/bin/activate
+      uv pip install 'python-apt @ https://launchpad.net/ubuntu/+archive/primary/+sourcefiles/python-apt/2.4.0ubuntu4/python-apt_2.4.0ubuntu4.tar.xz'
       rm $CRAFT_PART_INSTALL/lib64
 
       cp -v completion.bash $CRAFT_PART_INSTALL
 
       mkdir -p $CRAFT_PART_INSTALL/libexec/charmcraft
       sed -i 's|#!/bin/sh|#!/snap/charmcraft/current/bin/python3|' $CRAFT_PART_INSTALL/bin/craftctl
 
-      version="$($CRAFT_PART_INSTALL/bin/charmcraft --version | cut -d' ' -f2)"
+      version="$(uv pip show charmcraft|grep "Version:" | cut -d' ' -f2)"
       /snap/snapcraft/current/libexec/snapcraft/craftctl set version="${version}"
       [ -n "$(echo $version | grep "post")" ] && grade=devel || grade=stable
       /snap/snapcraft/current/libexec/snapcraft/craftctl set grade="${grade}"