From 487cbb0164c715e722b622fa800fa0b217fa132c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ludovic=20Court=C3=A8s?= <ludovic.courtes@inria.fr>
Date: Thu, 7 Feb 2019 14:54:43 +0100
Subject: profiles: Raise an error for unmatched patterns.

Previously, "guix package -r something-not-installed" would silently
complete.  Now an error is raised.

* guix/profiles.scm (&unmatched-pattern-error): New condition type.
(manifest-matching-entries): Rewrite to raise an error when one of
PATTERNS is not matched.
* guix/ui.scm (call-with-error-handling): Handle 'unmatched-pattern-error?'.
* tests/guix-package.sh: Add test.
* tests/profiles.scm ("manifest-matching-entries"): Don't try to remove
unmatched pattern.
("manifest-matching-entries, no match"): New test.
("manifest-transaction-effects"): Remove 'remove' field.
---
 tests/guix-package.sh |  7 ++++++-
 tests/profiles.scm    | 17 +++++++++++------
 2 files changed, 17 insertions(+), 7 deletions(-)

(limited to 'tests')

diff --git a/tests/guix-package.sh b/tests/guix-package.sh
index 7eeb4304d1..0d60481895 100644
--- a/tests/guix-package.sh
+++ b/tests/guix-package.sh
@@ -1,5 +1,5 @@
 # GNU Guix --- Functional package management for GNU
-# Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org>
+# Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
 # Copyright © 2013 Nikita Karetnikov <nikita@karetnikov.org>
 #
 # This file is part of GNU Guix.
@@ -97,6 +97,11 @@ then false; else true; fi
 if guix package --bootstrap -i "guile-bootstrap:does-not-exist" -p "$profile";
 then false; else true; fi
 
+# Make sure we get an error when trying to remove something that's not
+# installed.
+if guix package --bootstrap -r something-not-installed -p "$profile";
+then false; else true; fi
+
 # Check whether `--list-available' returns something sensible.
 guix package -p "$profile" -A 'gui.*e' | grep guile
 
diff --git a/tests/profiles.scm b/tests/profiles.scm
index 9a05030aff..eef93e24cf 100644
--- a/tests/profiles.scm
+++ b/tests/profiles.scm
@@ -93,10 +93,7 @@
 (test-assert "manifest-matching-entries"
   (let* ((e (list guile-2.0.9 guile-2.0.9:debug))
          (m (manifest e)))
-    (and (null? (manifest-matching-entries m
-                                           (list (manifest-pattern
-                                                   (name "python")))))
-         (equal? e
+    (and (equal? e
                  (manifest-matching-entries m
                                             (list (manifest-pattern
                                                     (name "guile")
@@ -107,6 +104,15 @@
                                                     (name "guile")
                                                     (version "2.0.9"))))))))
 
+(test-assert "manifest-matching-entries, no match"
+  (let ((m (manifest (list guile-2.0.9)))
+        (p (manifest-pattern (name "python"))))
+    (guard (c ((unmatched-pattern-error? c)
+               (and (eq? p (unmatched-pattern-error-pattern c))
+                    (eq? m (unmatched-pattern-error-manifest c)))))
+      (manifest-matching-entries m (list p))
+      #f)))
+
 (test-assert "manifest-remove"
   (let* ((m0 (manifest (list guile-2.0.9 guile-2.0.9:debug)))
          (m1 (manifest-remove m0
@@ -165,8 +171,7 @@
 (test-assert "manifest-transaction-effects"
   (let* ((m0 (manifest (list guile-1.8.8)))
          (t  (manifest-transaction
-              (install (list guile-2.0.9 glibc))
-              (remove (list (manifest-pattern (name "coreutils")))))))
+              (install (list guile-2.0.9 glibc)))))
     (let-values (((remove install upgrade downgrade)
                   (manifest-transaction-effects m0 t)))
       (and (null? remove) (null? downgrade)
-- 
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