+##
+# Import a key file into a specified gnupghome.
+#
+# @param keyfile file containing the keys to import
+# @param dst_gnupghome gnupghome directory where to import the key
+#
+# @return 0 if successful\n
+# 1 if an error occured.
+#
+sub import_key_files($$) {
+ my $err;
+ my ($keyfile, $dst_gpghome) = @_;
+
+ my $gpg = GnuPG::Interface->new();
+ $gpg->call( $CONFIG{'gpg'} );
+ $gpg->options->hash_init(
+ 'homedir' => $dst_gpghome,
+ 'extra_args' => [ qw{ --no-auto-check-trustdb --trust-model=always } ] );
+ $gpg->options->meta_interactive( 0 );
+ my ($inputfd, $stdoutfd, $stderrfd, $statusfd, $handles) = make_gpg_fds();
+ my $pid = $gpg->import_keys(handles => $handles, command_args => $keyfile);
+ my ($stdout, $stderr, $status) = readwrite_gpg('', $inputfd, $stdoutfd, $stderrfd, $statusfd);
+ info("Importing keys from file $keyfile");
+ waitpid $pid, 0;
+
+ if ($status !~ /^\[GNUPG:\] IMPORT_OK/m) {
+ warn $stderr;
+ $err = 1;
+ } else {
+ $err = 0;
+ }
+
+ return $err;
+}
+
+##
+# Import keys to be signed into caff gnupghome directory.
+#
+# This function imports the keys the user wants to sign into the caff gnupghome
+# directory. We looks for the keys in the the user gnupghome directory first,
+# and in the key files specified by the user if not all of the keys have been
+# found.
+#
+sub import_keys_to_sign() {
+ # Check if we can find the gpg key from our normal gnupghome, and then
+ # try to import it into our working gnupghome directory
+ if ($CONFIG{'keys-from-gnupg'}) {
+ foreach my $keyid (@KEYIDS) {
+ if (!import_key_from_user_gnupghome($keyid, $GNUPGHOME)) {
+ info("Key $keyid imported from your normal GnuPGHOME.");
+ }
+ }
+ };
+
+ # Import user specified key files
+ foreach my $keyfile (@{$CONFIG{'key-files'}}) {
+ import_key_files($keyfile, $GNUPGHOME);
+ }
+
+ return 0;
+}
+
+###################
+# argument handling
+###################