diff options
Diffstat (limited to 'gnu/packages/patches/elm-offline-package-registry.patch')
| -rw-r--r-- | gnu/packages/patches/elm-offline-package-registry.patch | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/gnu/packages/patches/elm-offline-package-registry.patch b/gnu/packages/patches/elm-offline-package-registry.patch new file mode 100644 index 0000000000..761ec69878 --- /dev/null +++ b/gnu/packages/patches/elm-offline-package-registry.patch @@ -0,0 +1,71 @@ +From 06563409e6f2b1cca7bc1b27e31efd07a7569da8 Mon Sep 17 00:00:00 2001 +From: Philip McGrath <philip@philipmcgrath.com> +Date: Thu, 14 Apr 2022 22:41:04 -0400 +Subject: [PATCH] minimal support for offline builds + +Normally, Elm performs HTTP requests before building to obtain or +update its list of all registed packages and their versions. +This is problematic in the Guix build environment. + +This patch causes Elm to check if the `GUIX_ELM_OFFLINE_REGISTRY_FILE` +is set and, if so, to use the contents of the file it specifies as +though it were the response from +https://package.elm-lang.org/all-packages. + +This patch does not attempt to add more general support for offline +builds. In particular, it does not attempt to support incremental +updates to the package registry cache file. See also discussion at +https://discourse.elm-lang.org/t/private-package-tool-spec/6779/25. +--- + builder/src/Deps/Registry.hs | 25 +++++++++++++++++++++---- + 1 file changed, 21 insertions(+), 4 deletions(-) + +diff --git a/builder/src/Deps/Registry.hs b/builder/src/Deps/Registry.hs +index 8d7def98..70cf3622 100644 +--- a/builder/src/Deps/Registry.hs ++++ b/builder/src/Deps/Registry.hs +@@ -18,6 +18,8 @@ import Control.Monad (liftM2) + import Data.Binary (Binary, get, put) + import qualified Data.List as List + import qualified Data.Map.Strict as Map ++import System.Environment as Env ++import qualified Data.ByteString as BS + + import qualified Deps.Website as Website + import qualified Elm.Package as Pkg +@@ -190,13 +192,28 @@ getVersions' name (Registry _ versions) = + post :: Http.Manager -> String -> D.Decoder x a -> (a -> IO b) -> IO (Either Exit.RegistryProblem b) + post manager path decoder callback = + let +- url = Website.route path [] +- in +- Http.post manager url [] Exit.RP_Http $ +- \body -> ++ mkBodyCallback url body = + case D.fromByteString decoder body of + Right a -> Right <$> callback a + Left _ -> return $ Left $ Exit.RP_Data url body ++ postOnline url cb = ++ Http.post manager url [] Exit.RP_Http cb ++ performPost f url = ++ f url (mkBodyCallback url) ++ in ++ do ++ maybeFile <- Env.lookupEnv "GUIX_ELM_OFFLINE_REGISTRY_FILE" ++ case (path, maybeFile) of ++ ( "/all-packages", Just file ) -> ++ performPost postOffline file ++ ( _, _ ) -> ++ -- don't know how to handle other endpoints yet ++ performPost postOnline (Website.route path []) ++ ++postOffline :: String -> (BS.ByteString -> IO a) -> IO a ++postOffline file callback = do ++ body <- BS.readFile file ++ callback body + + + +-- +2.32.0 + |