import: Add CHICKEN egg importer.

* guix/import/egg.scm: New file.
* guix/scripts/import/egg.scm: New file.
* tests/egg.scm: New file.
* Makefile.am (MODULES, SCM_TESTS): Register them.
* po/guix/POTFILES.in: Likewise.
* guix/scripts/import.scm (importers): Add egg importer.
* doc/guix.texi (Invoking guix import, Invoking guix refresh): Document it.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

1 files changed, 132 insertions, 0 deletions

diff --git a/tests/egg.scm b/tests/egg.scm
new file mode 100644
index 0000000000..0884d8d429
--- /dev/null
+++ b/tests/egg.scm
@@ -0,0 +1,132 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2021 Xinglu Chen <public@yoctocell.xyz>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (test-eggs)
+  #:use-module (guix import egg)
+  #:use-module (guix gexp)
+  #:use-module (guix base32)
+  #:use-module (gcrypt hash)
+  #:use-module (guix tests)
+  #:use-module ((guix build syscalls) #:select (mkdtemp!))
+  #:use-module ((guix build utils) #:select (delete-file-recursively mkdir-p which))
+  #:use-module ((guix utils) #:select (call-with-temporary-output-file))
+  #:use-module (srfi srfi-1)
+  #:use-module (srfi srfi-64)
+  #:use-module (web uri)
+  #:use-module (ice-9 match))
+
+(define test-egg-1
+  '((synopsis "Example egg")
+    (license "GPL-3/MIT")
+    (version "1.0.0")
+    (test-dependencies test srfi-1)
+    (foreign-dependencies libgit2)
+    (build-dependencies begin-syntax)
+    (dependencies datatype)
+    (author "John Doe")))
+
+(define test-egg-2
+  '((synopsis "Example egg")
+    (license "GPL-3+")
+    (version "0.3")
+    (test-dependencies test)
+    (foreign-dependencies libgit2)
+    (build-dependencies begin-syntax)
+    (dependencies datatype)
+    (author "Alice Bobson")))
+
+(define test-egg-1-file "/tmp/guix-egg-1")
+(define test-egg-2-file "/tmp/guix-egg-2")
+
+(test-begin "egg")
+
+(test-equal "guix-package->egg-name"
+  "bar"
+  (guix-package->egg-name
+   (dummy-package "dummy"
+                  (name "chicken-bar"))))
+
+;; Copied from tests/hackage.scm
+(define-syntax-rule (define-package-matcher name pattern)
+  (define* (name obj)
+    (match obj
+      (pattern #t)
+      (x       (pk 'fail x #f)))))
+
+(define (eval-test-with-egg-file egg-name egg-test egg-file matcher)
+  (call-with-output-file egg-file
+    (lambda (port)
+      (write egg-test port)))
+  (matcher (egg->guix-package egg-name
+                              #:file egg-file
+                              #:source (plain-file
+                                        (string-append egg-name "-egg")
+                                        "content"))))
+
+(define-package-matcher match-chicken-foo
+  ('package
+    ('name "chicken-foo")
+    ('version "1.0.0")
+    ('source (? file-like? source))
+    ('build-system 'chicken-build-system)
+    ('arguments ('quasiquote ('#:egg-name "foo")))
+    ('native-inputs
+     ('quasiquote
+      (("chicken-test" ('unquote chicken-test))
+       ("chicken-srfi-1" ('unquote chicken-srfi-1))
+       ("chicken-begin-syntax" ('unquote chicken-begin-syntax)))))
+    ('inputs
+     ('quasiquote
+      (("libgit2" ('unquote libgit2)))))
+    ('propagated-inputs
+     ('quasiquote
+      (("chicken-datatype" ('unquote chicken-datatype)))))
+    ('home-page "https://wiki.call-cc.org/egg/foo")
+    ('synopsis "Example egg")
+    ('description #f)
+    ('license '(list license:gpl3 license:expat))))
+
+(define-package-matcher match-chicken-bar
+  ('package
+    ('name "chicken-bar")
+    ('version "0.3")
+    ('source (? file-like? source))
+    ('build-system 'chicken-build-system)
+    ('arguments ('quasiquote ('#:egg-name "bar")))
+    ('native-inputs
+     ('quasiquote
+      (("chicken-test" ('unquote chicken-test))
+       ("chicken-begin-syntax" ('unquote chicken-begin-syntax)))))
+    ('inputs
+     ('quasiquote
+      (("libgit2" ('unquote libgit2)))))
+    ('propagated-inputs
+     ('quasiquote
+      (("chicken-datatype" ('unquote chicken-datatype)))))
+    ('home-page "https://wiki.call-cc.org/egg/bar")
+    ('synopsis "Example egg")
+    ('description #f)
+    ('license 'license:gpl3+)))
+
+(test-assert "egg->guix-package local file, multiple licenses"
+  (eval-test-with-egg-file "foo" test-egg-1 test-egg-1-file match-chicken-foo))
+
+(test-assert "egg->guix-package local file, single license"
+  (eval-test-with-egg-file "bar" test-egg-2 test-egg-2-file match-chicken-bar))
+
+(test-end "egg")