import: hackage: Use upstream-name property.

* guix/import/hackage.scm (guix-package->hackage-name): Removed.
(latest-release): Use package-upstream-name* instead.
* guix/import/stackage.scm (latest-lts-release): Ditto.
(stackage-lts-package?): Ditto.

2 files changed, 3 insertions, 15 deletions

diff --git a/guix/import/hackage.scm b/guix/import/hackage.scm
index 9e305cf080..2f901af47b 100644
--- a/guix/import/hackage.scm
+++ b/guix/import/hackage.scm
@@ -52,7 +52,6 @@
             hackage-recursive-import
             %hackage-updater
 
-            guix-package->hackage-name
             hackage-name->package-name
             hackage-fetch
             hackage-source-url
@@ -126,17 +125,6 @@ version is returned."
       (string-downcase name)
       (string-append package-name-prefix (string-downcase name))))
 
-(define guix-package->hackage-name
-  (let ((uri-rx (make-regexp "(https?://hackage.haskell.org|mirror://hackage)/package/([^/]+)/.*"))
-        (name-rx (make-regexp "(.*)-[0-9\\.]+")))
-    (lambda (package)
-      "Given a Guix package name, return the corresponding Hackage name."
-      (let* ((source-url (and=> (package-source package) origin-uri))
-             (name (match:substring (regexp-exec uri-rx source-url) 2)))
-        (match (regexp-exec name-rx name)
-          (#f name)
-          (m (match:substring m 1)))))))
-
 (define (read-cabal-and-hash port)
   "Read a Cabal file from PORT and return it and its hash in nix-base32
 format as two values."
@@ -371,7 +359,7 @@ respectively."
      (formatted-message
       (G_ "~a updater doesn't support updating to a specific version, sorry.")
       "hackage")))
-  (let* ((hackage-name (guix-package->hackage-name package))
+  (let* ((hackage-name (package-upstream-name* package))
          (cabal-meta (hackage-fetch hackage-name)))
     (match cabal-meta
       (#f
diff --git a/guix/import/stackage.scm b/guix/import/stackage.scm
index 9462e70791..735eeb75f7 100644
--- a/guix/import/stackage.scm
+++ b/guix/import/stackage.scm
@@ -149,7 +149,7 @@ PACKAGE or #f if the package is not included in the Stackage LTS release."
          (formatted-message
           (G_ "~a updater doesn't support updating to a specific version, sorry.")
           "stackage")))
-      (let* ((hackage-name (guix-package->hackage-name pkg))
+      (let* ((hackage-name (package-upstream-name* pkg))
              (version (lts-package-version (packages) hackage-name))
              (name-version (hackage-name-version hackage-name version)))
         (match (and=> name-version hackage-fetch)
@@ -173,7 +173,7 @@ PACKAGE or #f if the package is not included in the Stackage LTS release."
        (false-if-networking-error
         (let ((packages (stackage-lts-packages
                          (stackage-lts-info-fetch %default-lts-version)))
-              (hackage-name (guix-package->hackage-name package)))
+              (hackage-name (package-upstream-name* package)))
           (find (lambda (package)
                   (string=? (stackage-package-name package) hackage-name))
                 packages)))))