feat: create tmpdir at 'tebako_original_pwd' if all standard options …

…fail

.gitignore

@@ -12,3 +12,5 @@ Gemfile.lock
 
 # rspec failure tracking
 .rspec_status
+
+.vscode

lib/tebako-runtime/memfs.rb

@@ -35,33 +35,46 @@
 # Module TebakoRuntime
 # Methods to extract files from memfs to temporary folder
 module TebakoRuntime
-  COMPILER_MEMFS = RUBY_PLATFORM =~ /mswin|mingw/ ? "A:/__tebako_memfs__" : "/__tebako_memfs__"
-  COMPILER_MEMFS_LIB_CACHE = Pathname.new(Dir.mktmpdir("tebako-runtime-"))
+  def self.initialize_compiler_memfs_lib_cache
+    Pathname.new(Dir.mktmpdir("tebako-runtime-"))
+  rescue StandardError
+    return nil unless defined?($tebako_original_pwd) && !$tebako_original_pwd.nil? # rubocop:disable Style/GlobalVars
 
-  class << self
-    def extract(file, wild, extract_path)
-      files = if wild
-                Dir.glob("#{File.dirname(file)}/*#{File.extname(file)}")
-              else
-                [file]
-              end
-      FileUtils.cp_r files, extract_path
+    begin
+      Pathname.new(Dir.mktmpdir("tebako-runtime-", $tebako_original_pwd)) # rubocop:disable Style/GlobalVars
+    rescue StandardError
+      nil
     end
+  end
+
+  COMPILER_MEMFS = RUBY_PLATFORM =~ /mswin|mingw/ ? "A:/__tebako_memfs__" : "/__tebako_memfs__"
+  COMPILER_MEMFS_LIB_CACHE = initialize_compiler_memfs_lib_cache
+  exit if COMPILER_MEMFS_LIB_CACHE.nil?
 
-    # wild == true means "also extract other files with the same extension"
-    def extract_memfs(file, wild: false, cache_path: COMPILER_MEMFS_LIB_CACHE)
-      is_quoted = file.quoted?
-      file = file.unquote if is_quoted
-      return is_quoted ? file.quote : file unless File.exist?(file) && file.start_with?(COMPILER_MEMFS)
+  def self.extract(file, wild, extract_path)
+    files = if wild
+              Dir.glob("#{File.dirname(file)}/*#{File.extname(file)}")
+            else
+              [file]
+            end
+    FileUtils.cp_r files, extract_path
+  end
 
-      memfs_extracted_file = cache_path + File.basename(file)
-      extract(file, wild, cache_path) unless memfs_extracted_file.exist?
+  # wild == true means "also extract other files with the same extension"
+  def self.extract_memfs(file, wild: false, cache_path: COMPILER_MEMFS_LIB_CACHE)
+    is_quoted = file.quoted?
+    file = file.unquote if is_quoted
+    return is_quoted ? file.quote : file unless File.exist?(file) && file.start_with?(COMPILER_MEMFS)
 
-      is_quoted ? memfs_extracted_file.to_path.quote : memfs_extracted_file.to_path
-    end
+    memfs_extracted_file = cache_path + File.basename(file)
+    extract(file, wild, cache_path) unless memfs_extracted_file.exist?
+
+    is_quoted ? memfs_extracted_file.to_path.quote : memfs_extracted_file.to_path
   end
 end
 
 at_exit do
+  return if TebakoRuntime::COMPILER_MEMFS_LIB_CACHE.nil?
+
   FileUtils.remove_dir(TebakoRuntime::COMPILER_MEMFS_LIB_CACHE.to_path, true)
 end

lib/tebako-runtime/version.rb

@@ -26,5 +26,5 @@
 # POSSIBILITY OF SUCH DAMAGE.
 
 module TebakoRuntime
-  VERSION = "0.5.2"
+  VERSION = "0.5.3"
 end

spec/memfs_spec.rb

@@ -0,0 +1,81 @@
+# frozen_string_literal: true
+
+# Copyright (c) 2024 [Ribose Inc](https://www.ribose.com).
+# All rights reserved.
+# This file is a part of tebako
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS
+# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+
+require "rspec"
+require "pathname"
+require "tempfile"
+
+# rubocop:disable Style/GlobalVars
+# Mock the global variable
+
+$tebako_original_pwd = nil
+RSpec.describe "COMPILER_MEMFS_LIB_CACHE initialization" do # rubocop:disable Metrics/BlockLength
+  before do
+    # Reset the global variable before each test
+    $tebako_original_pwd = nil
+  end
+
+  it "creates a temporary directory successfully" do
+    allow(Dir).to receive(:mktmpdir).and_return("/tmp/tebako-runtime-1234")
+    memfs_cache = TebakoRuntime.send(:initialize_compiler_memfs_lib_cache)
+    expect(memfs_cache.to_s).to eq("/tmp/tebako-runtime-1234")
+  end
+
+  it "handles failure to create temporary directory and uses $tebako_original_pwd" do
+    allow(Dir).to receive(:mktmpdir).and_raise(StandardError)
+    $tebako_original_pwd = "/tmp"
+    allow(Dir).to receive(:mktmpdir).with("tebako-runtime-",
+                                          $tebako_original_pwd).and_return("/tmp/tebako-runtime-5678")
+
+    memfs_cache = TebakoRuntime.send(:initialize_compiler_memfs_lib_cache)
+    expect(memfs_cache.to_s).to eq("/tmp/tebako-runtime-5678")
+  end
+
+  it "handles failure to create temporary directory and $tebako_original_pwd is nil" do
+    allow(Dir).to receive(:mktmpdir).and_raise(StandardError)
+    $tebako_original_pwd = nil
+
+    memfs_cache = TebakoRuntime.send(:initialize_compiler_memfs_lib_cache)
+    expect(memfs_cache).to be_nil
+  end
+
+  it "handles failure to create temporary directory botha at standard locations and with $tebako_original_pwd is nil" do
+    call_count = 0
+    allow(Dir).to receive(:mktmpdir) do
+      call_count += 1
+      raise StandardError if call_count <= 2
+
+      "/tmp/tebako-runtime-1234"
+    end
+
+    $tebako_original_pwd = "/tmp"
+
+    memfs_cache = TebakoRuntime.send(:initialize_compiler_memfs_lib_cache)
+    expect(memfs_cache).to be_nil
+  end
+end
+# rubocop:enable Style/GlobalVars

spec/pass_through_spec.rb

@@ -25,6 +25,8 @@
 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 # POSSIBILITY OF SUCH DAMAGE.
 
+require "tebako-runtime"
+
 # rubocop:disable Metrics/BlockLength
 RSpec.describe TebakoRuntime do
   it "provides a stub for ffi gem in pass through mode on Windows" do

spec/runtime_spec.rb

@@ -26,6 +26,7 @@
 # POSSIBILITY OF SUCH DAMAGE.
 
 require "pathname"
+require "tebako-runtime"
 
 # rubocop:disable Metrics/BlockLength
 RSpec.describe TebakoRuntime do

spec/spec_helper.rb

@@ -35,8 +35,6 @@
 require "simplecov-cobertura"
 SimpleCov.formatter = SimpleCov::Formatter::CoberturaFormatter
 
-require "tebako-runtime"
-
 RSpec.configure do |config|
   # Enable flags like --only-failures and --next-failure
   config.example_status_persistence_file_path = ".rspec_status"

spec/string_spec.rb

@@ -25,6 +25,8 @@
 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 # POSSIBILITY OF SUCH DAMAGE.
 
+require "tebako-runtime"
+
 RSpec.describe String do
   it "recognizes quoted strings" do
     expect('"quoted"'.quoted?).to be(true)