chroot/build: add mount_gpg()

chroot/build.py

@@ -1,3 +1,4 @@
+import atexit
 import logging
 import os
 import subprocess
@@ -7,6 +8,7 @@ from typing import ClassVar, Optional
 from config.state import config
 from constants import Arch, GCC_HOSTSPECS, CROSSDIRECT_PKGS, CHROOT_PATHS
 from distro.distro import get_kupfer_local
+from distro.gpg import GPG_HOME_DIR
 from exec.cmd import run_root_cmd
 from exec.file import makedir, remove_file, root_makedir, root_write_file, symlink
 
@@ -159,6 +161,25 @@ class BuildChroot(Chroot):
             ))
         return results
 
+    def mount_gpg(self, fail_if_mounted: bool = False, schedule_gpg_kill: bool = True) -> str:
+        res = self.mount(
+            absolute_source=config.get_path('gpg'),
+            relative_destination=CHROOT_PATHS['gpg'].lstrip('/'),
+            fail_if_mounted=fail_if_mounted,
+        )
+        if schedule_gpg_kill:
+            atexit.register(self.kill_gpg_agent)
+        return res
+
+    def get_gpg_home(self, host_path: bool = False) -> str:
+        gpg_home = os.path.join(CHROOT_PATHS['gpg']. GPG_HOME_DIR)
+        if host_path:
+            gpg_home = self.get_path(gpg_home)
+        return gpg_home
+
+    def kill_gpg_agent(self) -> subprocess.CompletedProcess:
+        res = self.run_cmd(["timeout", "2s", "gpgconf", "--kill", "gpg-agent"], inner_env={"GNUPGHOME": self.get_gpg_home()})
+        logging.debug(f"GPG agent killed: {res.returncode=}, {res.stdout=}, {res.stderr}")
 
 def get_build_chroot(arch: Arch, add_kupfer_repos: bool = True, **kwargs) -> BuildChroot:
     name = build_chroot_name(arch)