A directory-category for terminal emulators

This is a mostly cosmetical commit, in the sense it doesn't change the contents of any package, but reorganizes the overall Nixpkgs expressions. Terminal emulators are an ubiquitous tool for any Unix user; even the beginners are routinely familiarized to it. And, manifestly, there are many implementations of terminal emulators out there, from those traditionally made in C and C++ to those written in Haskell and Go. Terminal emulators deserve more highlight. This commit does that by creating a category for them.
2020-10-28 10:22:39 -03:00
parent c3feda093d
commit 2bb3a9da24
60 changed files with 48 additions and 38 deletions
@@ -0,0 +1,58 @@
+{ callPackage
+, symlinkJoin
+, makeWrapper
+, lib
+, rxvt-unicode-unwrapped
+, rxvt-unicode-plugins
+, perlPackages
+, configure ? { availablePlugins, ... }:
+  { plugins = builtins.attrValues availablePlugins;
+    extraDeps = [ ];
+    perlDeps = [ ];
+  }
+}:
+
+let
+  availablePlugins = rxvt-unicode-plugins;
+
+  # Transform the string "self" to the plugin itself.
+  # It's needed for plugins like bidi who depends on the perl
+  # package they provide themself.
+  mkPerlDeps = p:
+    let deps = p.perlPackages or [ ];
+    in map (x: if x == "self" then p else x) deps;
+
+  # The wrapper is called with a `configure` function
+  # that takes the urxvt plugins as input and produce
+  # the configuration of the wrapper: list of plugins,
+  # extra dependencies and perl dependencies.
+  # This provides simple way to customize urxvt using
+  # the `.override` mechanism.
+  wrapper = { configure, ... }:
+    let 
+      config = configure { inherit availablePlugins; };
+      plugins = config.plugins or (builtins.attrValues availablePlugins);
+      extraDeps = config.extraDeps or [ ];
+      perlDeps = (config.perlDeps or [ ]) ++ lib.concatMap mkPerlDeps plugins;
+    in
+      symlinkJoin {
+        name = "rxvt-unicode-${rxvt-unicode-unwrapped.version}";
+
+        paths = [ rxvt-unicode-unwrapped ] ++ plugins ++ extraDeps;
+
+        buildInputs = [ makeWrapper ];
+
+        postBuild = ''
+          wrapProgram $out/bin/urxvt \
+            --prefix PERL5LIB : "${perlPackages.makePerlPath perlDeps}" \
+            --suffix-each URXVT_PERL_LIB ':' "$out/lib/urxvt/perl"
+          wrapProgram $out/bin/urxvtd \
+            --prefix PERL5LIB : "${perlPackages.makePerlPath perlDeps}" \
+            --suffix-each URXVT_PERL_LIB ':' "$out/lib/urxvt/perl"
+        '';
+
+        passthru.plugins = plugins;
+      };
+
+in
+  lib.makeOverridable wrapper { inherit configure; }