From 5ff79caff9bdfb167d276b72cf2ba8325e48effe Mon Sep 17 00:00:00 2001
From: Andrew Dunham <andrew@du.nham.ca>
Date: Sat, 7 Jan 2023 16:14:35 -0500
Subject: [PATCH] mastodon: pass dependencies as environment variables

This makes it much easier to override components of the Mastodon
derivation to e.g. use a fork. With this change, one can use something
like the following to install a fork (with the appropriate files):

    let
      src = callPackage ./source.nix { };
    in
      (mastodon.override {
        pname = "hometown";
        version = import ./version.nix;
        srcOverride = src;
        dependenciesDir = ./.;
      }).overrideAttrs (oldAttrs: rec {
        yarnOfflineCache = fetchYarnDeps {
          yarnLock = "${src}/yarn.lock";
          sha256 = "sha256-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=";
        };
        mastodonModules = oldAttrs.mastodonModules.overrideAttrs (oldModuleAttrs: {
          inherit yarnOfflineCache;
        });
      });

A spiritual successor to f949de4fbb5c5adb7f3ec085206f48a2efdd1d9a
---
 pkgs/servers/mastodon/default.nix | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/pkgs/servers/mastodon/default.nix b/pkgs/servers/mastodon/default.nix
index ba105959b568..50050acf40cc 100644
--- a/pkgs/servers/mastodon/default.nix
+++ b/pkgs/servers/mastodon/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
   # Putting the callPackage up in the arguments list also does not work.
   src = if srcOverride != null then srcOverride else callPackage ./source.nix {};
 
-  mastodon-gems = bundlerEnv {
+  mastodonGems = bundlerEnv {
     name = "${pname}-gems-${version}";
     inherit version;
     ruby = ruby_3_0;
@@ -36,7 +36,7 @@ stdenv.mkDerivation rec {
     '';
   };
 
-  mastodon-modules = stdenv.mkDerivation {
+  mastodonModules = stdenv.mkDerivation {
     pname = "${pname}-modules";
     inherit src version;
 
@@ -45,7 +45,7 @@ stdenv.mkDerivation rec {
       sha256 = "sha256-fuU92fydoazSXBHwA+DG//gRgWVYQ1M3m2oNS2iwv4I=";
     };
 
-    nativeBuildInputs = [ fixup_yarn_lock nodejs-slim yarn mastodon-gems mastodon-gems.wrappedRuby ];
+    nativeBuildInputs = [ fixup_yarn_lock nodejs-slim yarn mastodonGems mastodonGems.wrappedRuby ];
 
     RAILS_ENV = "production";
     NODE_ENV = "production";
@@ -79,19 +79,19 @@ stdenv.mkDerivation rec {
     '';
   };
 
-  propagatedBuildInputs = [ imagemagick ffmpeg file mastodon-gems.wrappedRuby ];
-  buildInputs = [ mastodon-gems nodejs-slim ];
+  propagatedBuildInputs = [ imagemagick ffmpeg file mastodonGems.wrappedRuby ];
+  buildInputs = [ mastodonGems nodejs-slim ];
 
   buildPhase = ''
-    ln -s ${mastodon-modules}/node_modules node_modules
-    ln -s ${mastodon-modules}/public/assets public/assets
-    ln -s ${mastodon-modules}/public/packs public/packs
+    ln -s $mastodonModules/node_modules node_modules
+    ln -s $mastodonModules/public/assets public/assets
+    ln -s $mastodonModules/public/packs public/packs
 
     patchShebangs bin/
-    for b in $(ls ${mastodon-gems}/bin/)
+    for b in $(ls $mastodonGems/bin/)
     do
       if [ ! -f bin/$b ]; then
-        ln -s ${mastodon-gems}/bin/$b bin/$b
+        ln -s $mastodonGems/bin/$b bin/$b
       fi
     done