From 5fb2184bd333d8ea72ebb452539955ee2b347835 Mon Sep 17 00:00:00 2001
From: Maximilian Bosch <maximilian@mbosch.me>
Date: Mon, 25 Sep 2017 14:24:01 +0200
Subject: [PATCH 1/2] vim-plugins: add {pre,post}Install hooks to
 `buildVimPlugin`

---
 pkgs/misc/vim-plugins/vim-utils.nix | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/pkgs/misc/vim-plugins/vim-utils.nix b/pkgs/misc/vim-plugins/vim-utils.nix
index 87b2f9d3e18..b659266ace7 100644
--- a/pkgs/misc/vim-plugins/vim-utils.nix
+++ b/pkgs/misc/vim-plugins/vim-utils.nix
@@ -383,6 +383,8 @@ rec {
     unpackPhase ? "",
     configurePhase ? "",
     buildPhase ? "",
+    preInstall ? "",
+    postInstall ? "",
     path ? (builtins.parseDrvName name).name,
     addonInfo ? null,
     ...
@@ -390,9 +392,11 @@ rec {
     addRtp "${rtpPath}/${path}" (stdenv.mkDerivation (a // {
       name = namePrefix + name;
 
-      inherit unpackPhase configurePhase buildPhase addonInfo;
+      inherit unpackPhase configurePhase buildPhase addonInfo preInstall postInstall;
 
       installPhase = ''
+        runHook preInstall
+
         target=$out/${rtpPath}/${path}
         mkdir -p $out/${rtpPath}
         cp -r . $target
@@ -401,6 +405,8 @@ rec {
         if [ -n "$addonInfo" ]; then
           echo "$addonInfo" > $target/addon-info.json
         fi
+
+        runHook postInstall
       '';
     }));
 

From 67a42ae2a12676376c44e0b3134475ca3a2c2443 Mon Sep 17 00:00:00 2001
From: Maximilian Bosch <maximilian@mbosch.me>
Date: Mon, 25 Sep 2017 14:24:36 +0200
Subject: [PATCH 2/2] vim-plugins: document `nix-shell -I` usage for
 `vim-plugin-names-to-nix` usage

I use my own fork for NixOS development/testing, but `nixos-unstable`
for my system configuration.

Whenever I add a new plugin and I regenerate the expressions I need to
change the `NIX_PATH` variable to my own fork. As this is something I
tend to forget I think it's better to document this.
---
 pkgs/misc/vim-plugins/default.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/misc/vim-plugins/default.nix b/pkgs/misc/vim-plugins/default.nix
index 7944533c112..0bfa6c89a15 100644
--- a/pkgs/misc/vim-plugins/default.nix
+++ b/pkgs/misc/vim-plugins/default.nix
@@ -16,7 +16,7 @@ in
 
 # TL;DR
 # Add your plugin to ./vim-plugin-names
-# Regenerate via `nix-shell -p vimPlugins.pluginnames2nix --command "vim-plugin-names-to-nix"`
+# Regenerate via `nix-shell -I nixpkgs=/path/to/your/local/fork -p vimPlugins.pluginnames2nix --command "vim-plugin-names-to-nix"`
 # Copy the generated expression(s) into this file.
 # If plugin is complicated then make changes to ./vim2nix/additional-nix-code