tests: Fix no gpg-agent upon removal of GNUPGHOME.

* tests/gpgscm/gnupg.scm (with-ephemeral-home-directory): Add
teadown-fn.
* tests/gpgsm/export.scm: Use -no-atexit version and stop-agent.
* tests/openpgp/decrypt-session-key.scm: Likewise.
* tests/openpgp/decrypt-unwrap-verify.scm: Likewise.
* tests/openpgp/defs.scm (have-opt-always-trust): Likewise.
(setup-environment-no-atexit): New.
(start-agent): Support no use of atexit.
* tests/gpgsm/gpgsm-defs.scm (setup-gpgsm-environment-no-atexit): New.
* tests/migrations/common.scm (untar-armored): Follow the change
of with-ephemeral-home-directory.

--

When gpg-agent detects homedir removal, it will automatically exit.
Then, call of 'gpgconf --kill all' will fail.  So, stop-agent should
be called before the removal of homedir.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>

tests/gpgscm/gnupg.scm

@@ -28,17 +28,22 @@
 
 ;; Evaluate a sequence of expressions with an ephemeral home
 ;; directory.
-(define-macro (with-ephemeral-home-directory setup-fn . expressions)
+(define-macro (with-ephemeral-home-directory setup-fn teardown-fn . expressions)
   (let ((original-home-directory (gensym))
 	(ephemeral-home-directory (gensym))
-	(setup (gensym)))
+	(setup (gensym))
+	(teardown (gensym)))
     `(let ((,original-home-directory (getenv "GNUPGHOME"))
 	   (,ephemeral-home-directory (mkdtemp))
-	   (,setup (delay (,setup-fn))))
+	   (,setup (delay (,setup-fn)))
+	   (,teardown (delay (,teardown-fn))))
        (finally (unlink-recursively ,ephemeral-home-directory)
 	 (dynamic-wind
 	     (lambda ()
 	       (setenv "GNUPGHOME" ,ephemeral-home-directory #t)
 	       (with-working-directory ,ephemeral-home-directory (force ,setup)))
 	     (lambda () ,@expressions)
-	     (lambda () (setenv "GNUPGHOME" ,original-home-directory #t)))))))
+	     (lambda ()
+	       (setenv "GNUPGHOME" ,ephemeral-home-directory #t)
+	       (with-working-directory ,ephemeral-home-directory (force ,teardown))
+	       (setenv "GNUPGHOME" ,original-home-directory #t)))))))

tests/gpgsm/export.scm

@@ -25,7 +25,7 @@
  (lambda (cert)
    (lettmp (exported)
      (call-check `(,@gpgsm --output ,exported --export ,cert::uid::CN))
-     (with-ephemeral-home-directory setup-gpgsm-environment
+     (with-ephemeral-home-directory setup-gpgsm-environment-no-atexit stop-agent
       (call-check `(,@gpgsm --import ,exported))
       (assert (sm-have-public-key? cert)))))
  (lambda (cert) cert::uid::CN)

tests/gpgsm/gpgsm-defs.scm

@@ -99,3 +99,9 @@
       (call-check `(,(tool 'gpgtar) --extract --directory=. ,(cadr *args*)))
       (create-gpgsm-gpghome))
   (start-agent))
+
+(define (setup-gpgsm-environment-no-atexit)
+  (if (member "--unpack-tarball" *args*)
+      (call-check `(,(tool 'gpgtar) --extract --directory=. ,(cadr *args*)))
+      (create-gpgsm-gpghome))
+  (start-agent #t))

tests/migrations/common.scm

@@ -39,7 +39,7 @@
 (define GPGTAR (path-join (getenv "objdir") "tools" (qualify "gpgtar")))
 
 (define (untar-armored source-name)
-  (with-ephemeral-home-directory (lambda ())
+  (with-ephemeral-home-directory (lambda ()) (lambda ())
     (pipe:do
      (pipe:open source-name (logior O_RDONLY O_BINARY))
      (pipe:spawn `(,@GPG --dearmor))

tests/openpgp/decrypt-session-key.scm

@@ -37,7 +37,7 @@
  (lambda (name)
    (let* ((source (in-srcdir "tests" "openpgp" (string-append name ".asc")))
 	  (key (get-session-key source)))
-     (with-ephemeral-home-directory setup-environment
+     (with-ephemeral-home-directory setup-environment-no-atexit stop-agent
       (tr:do
        (tr:open source)
        (tr:gpg "" `(--yes --decrypt --override-session-key ,key))

tests/openpgp/decrypt-unwrap-verify.scm

@@ -35,7 +35,7 @@
 
        ;; Then, verify the signature with a clean working directory
        ;; containing only Steve's public key.
-       (with-ephemeral-home-directory setup-environment
+       (with-ephemeral-home-directory setup-environment-no-atexit stop-agent
 	(call-check `(,@gpg --import ,steve's-key))
 	(call-check `(,@gpg --verify ,unwrapped)))))
   '("encsig-2-keys-3" "encsig-2-keys-4")))

tests/openpgp/defs.scm

@@ -201,7 +201,7 @@
 
 (define have-opt-always-trust
   (catch #f
-	 (with-ephemeral-home-directory (lambda ())
+	 (with-ephemeral-home-directory (lambda ()) (lambda ())
 	   (call-check `(,(tool 'gpg) --gpgconf-test --always-trust)))
 	 #t))
 
@@ -365,6 +365,10 @@
   (create-gpghome)
   (start-agent))
 
+(define (setup-environment-no-atexit)
+  (create-gpghome)
+  (start-agent #t))
+
 (define (create-sample-files)
   (log "Creating sample data files")
   (for-each
@@ -448,12 +452,12 @@
   (preset-passphrases))
 
 ;; Create the socket dir and start the agent.
-(define (start-agent)
+(define (start-agent . args)
   (log "Starting gpg-agent...")
   (let ((gnupghome (getenv "GNUPGHOME")))
+    (if (null? args)
 	(atexit (lambda ()
-	      (with-home-directory gnupghome
-				   (stop-agent)))))
+		  (with-home-directory gnupghome (stop-agent))))))
   (catch (log "Warning: Creating socket directory failed:" (car *error*))
 	 (gpg-conf '--create-socketdir))
   (call-check `(,(tool 'gpg-connect-agent) --verbose