From 8b146fbb13b14a6b7c930d197f7abfbaf6d5f7e2 Mon Sep 17 00:00:00 2001
From: Matthew Draper <matthew@trebex.net>
Date: Fri, 8 Jul 2022 00:07:23 +0930
Subject: [PATCH] Set BUNDLE_BIN_PATH during exec

Our command is obviously less featureful than 'bundle', but if you're
running inside a Gel context, I think you still have a better chance of
success from 'gel' than from 'bundle'.
---
 lib/gel/command/exec.rb      | 1 +
 lib/gel/gemspec_parser.rb    | 1 +
 lib/gel/package/installer.rb | 1 +
 3 files changed, 3 insertions(+)

diff --git a/lib/gel/command/exec.rb b/lib/gel/command/exec.rb
index 03f32ca7..41484535 100644
--- a/lib/gel/command/exec.rb
+++ b/lib/gel/command/exec.rb
@@ -17,6 +17,7 @@ def run(command_line, from_stub: false)
     end
 
     ENV["RUBYLIB"] = Gel::Environment.modified_rubylib
+    ENV["BUNDLE_BIN_PATH"] = File.expand_path("../../../exe/gel", __dir__)
 
     if execute_inline?(expanded_command)
       if command_source == :path || command_source == :original
diff --git a/lib/gel/gemspec_parser.rb b/lib/gel/gemspec_parser.rb
index 9735ed09..7f38cf69 100644
--- a/lib/gel/gemspec_parser.rb
+++ b/lib/gel/gemspec_parser.rb
@@ -79,6 +79,7 @@ def self.parse(content, filename, lineno = 1, root: File.dirname(filename), isol
                     "GEL_DEBUG" => nil,
                     "GEL_GEMFILE" => "",
                     "GEL_LOCKFILE" => "",
+                    "BUNDLE_BIN_PATH" => nil,
                   },
                   RbConfig.ruby,
                   "-r", File.expand_path("compatibility", __dir__),
diff --git a/lib/gel/package/installer.rb b/lib/gel/package/installer.rb
index cd7d5899..635cbba1 100644
--- a/lib/gel/package/installer.rb
+++ b/lib/gel/package/installer.rb
@@ -132,6 +132,7 @@ def build_environment(rake: false)
         "GEL_STORE" => File.expand_path(@root_store.root),
         "GEL_GEMFILE" => gemfile,
         "GEL_LOCKFILE" => lockfile,
+        "BUNDLE_BIN_PATH" => File.expand_path("../../../exe/gel", __dir__),
       }
     end