lint: Check for unstable tarballs.

* guix/scripts/lint.scm (check-source-unstable-tarball): New procedure.
(%checkers): Add it.
* tests/lint.scm ("source-unstable-tarball", "source-unstable-tarball:
source #f", "source-unstable-tarball: valid", "source-unstable-tarball:
package named archive", "source-unstable-tarball: not-github",
"source-unstable-tarball: git-fetch"): New tests.
* doc/guix.texi (Invoking guix lint): Document it.

1 files changed, 80 insertions, 0 deletions

diff --git a/tests/lint.scm b/tests/lint.scm
index d4aa7c0e8e..fe12bebd88 100644
--- a/tests/lint.scm
+++ b/tests/lint.scm
@@ -572,6 +572,86 @@
          (check-source-file-name pkg)))
      "file name should contain the package name"))))
 
+(test-assert "source-unstable-tarball"
+  (string-contains
+   (with-warnings
+     (let ((pkg (dummy-package "x"
+                  (source
+                    (origin
+                      (method url-fetch)
+                      (uri "https://github.com/example/example/archive/v0.0.tar.gz")
+                      (sha256 %null-sha256))))))
+       (check-source-unstable-tarball pkg)))
+   "source URI should not be an autogenerated tarball"))
+
+(test-assert "source-unstable-tarball: source #f"
+  (not
+    (->bool
+     (string-contains
+      (with-warnings
+        (let ((pkg (dummy-package "x"
+                     (source #f))))
+          (check-source-unstable-tarball pkg)))
+      "source URI should not be an autogenerated tarball"))))
+
+(test-assert "source-unstable-tarball: valid"
+  (not
+    (->bool
+     (string-contains
+      (with-warnings
+        (let ((pkg (dummy-package "x"
+                     (source
+                       (origin
+                         (method url-fetch)
+                         (uri "https://github.com/example/example/releases/download/x-0.0/x-0.0.tar.gz")
+                         (sha256 %null-sha256))))))
+          (check-source-unstable-tarball pkg)))
+      "source URI should not be an autogenerated tarball"))))
+
+(test-assert "source-unstable-tarball: package named archive"
+  (not
+    (->bool
+     (string-contains
+      (with-warnings
+        (let ((pkg (dummy-package "x"
+                     (source
+                       (origin
+                         (method url-fetch)
+                         (uri "https://github.com/example/archive/releases/download/x-0.0/x-0.0.tar.gz")
+                         (sha256 %null-sha256))))))
+          (check-source-unstable-tarball pkg)))
+      "source URI should not be an autogenerated tarball"))))
+
+(test-assert "source-unstable-tarball: not-github"
+  (not
+    (->bool
+     (string-contains
+      (with-warnings
+        (let ((pkg (dummy-package "x"
+                     (source
+                       (origin
+                         (method url-fetch)
+                         (uri "https://bitbucket.org/archive/example/download/x-0.0.tar.gz")
+                         (sha256 %null-sha256))))))
+          (check-source-unstable-tarball pkg)))
+      "source URI should not be an autogenerated tarball"))))
+
+(test-assert "source-unstable-tarball: git-fetch"
+  (not
+    (->bool
+     (string-contains
+      (with-warnings
+        (let ((pkg (dummy-package "x"
+                     (source
+                       (origin
+                         (method git-fetch)
+                         (uri (git-reference
+                                (url "https://github.com/archive/example.git")
+                                (commit "0")))
+                         (sha256 %null-sha256))))))
+          (check-source-unstable-tarball pkg)))
+      "source URI should not be an autogenerated tarball"))))
+
 (test-skip (if (http-server-can-listen?) 0 1))
 (test-equal "source: 200"
   ""