daemon: Implement signed archive import/export.

* guix/scripts/authenticate.scm, nix/scripts/guix-authenticate.in,
  tests/signing-key.pub, tests/signing-key.sec: New files.
* po/POTFILES.in: Add 'guix/scripts/authenticate.scm'.
* guix/store.scm (dump-port): New procedure.
  (process-stderr): Add 'user-port' optional parameter.  Handle
  the %STDERR-WRITE and %STDERR-READ cases as expected.
  (import-paths, export-path, export-paths): New procedures.
* tests/store.scm ("export/import several paths", "import corrupt
  path"): New tests.
* Makefile.am (MODULES): Add 'guix/scripts/authenticate.scm'.
  (EXTRA_DIST): Add 'tests/signing-key.{pub,sec}'.
* daemon.am (libstore_a_CPPFLAGS)[-DNIX_CONF_DIR]: Change 'NIX_CONF_DIR'
  to .../guix.  Change 'OPENSSL_PATH' to 'guix-authenticate'.
* config-daemon.ac: Instantiate 'nix/scripts/guix-authenticate'.
* nix/nix-daemon/guix-daemon.cc (main): Augment $PATH to include
  'settings.nixLibexecDir'.
* test-env.in: Export 'NIX_CONF_DIR' and 'NIX_LIBEXEC_DIR'.  Populate
  $NIX_CONF_DIR.

1 files changed, 2 insertions, 2 deletions

diff --git a/daemon.am b/daemon.am
index 77bfe71987..27c631b2da 100644
--- a/daemon.am
+++ b/daemon.am
@@ -112,10 +112,10 @@ libstore_a_CPPFLAGS =				\
   -DNIX_DATA_DIR=\"$(datadir)\"			\
   -DNIX_STATE_DIR=\"$(localstatedir)/nix\"	\
   -DNIX_LOG_DIR=\"$(localstatedir)/log/nix\"	\
-  -DNIX_CONF_DIR=\"$(sysconfdir)/nix\"		\
+  -DNIX_CONF_DIR=\"$(sysconfdir)/guix\"		\
   -DNIX_LIBEXEC_DIR=\"$(libexecdir)\"		\
   -DNIX_BIN_DIR=\"$(bindir)\"			\
-  -DOPENSSL_PATH="\"openssl\""
+  -DOPENSSL_PATH="\"guix-authenticate\""
 
 libstore_a_CXXFLAGS =				\
   $(SQLITE3_CFLAGS) $(LIBGCRYPT_CFLAGS)