First commit

Author: kojix2

.github/workflows/main.yml

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+name: Ruby
+
+on:
+  push:
+    branches:
+      - master
+
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    name: Ruby ${{ matrix.ruby }}
+    strategy:
+      matrix:
+        ruby:
+          - '3.2.0'
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up Ruby
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: ${{ matrix.ruby }}
+        bundler-cache: true
+    - name: Install hdf5
+      run: sudo apt-get install libhdf5-dev
+    - name: Run the default task
+      run: bundle exec rake

.gitignore

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+/.bundle/
+/.yardoc
+/_yardoc/
+/coverage/
+/doc/
+/pkg/
+/spec/reports/
+/tmp/
+
+*.lock

.gitmodules

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+[submodule "hdf5"]
+	path = hdf5
+	url = https://github.com/HDFGroup/hdf5

.rubocop.yml

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+AllCops:
+  TargetRubyVersion: 2.6
+
+Style/StringLiterals:
+  Enabled: true
+  EnforcedStyle: double_quotes
+
+Style/StringLiteralsInInterpolation:
+  Enabled: true
+  EnforcedStyle: double_quotes
+
+Layout/LineLength:
+  Max: 120

Gemfile

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+# frozen_string_literal: true
+
+source "https://rubygems.org"
+
+# Specify your gem's dependencies in ruby-hdf5.gemspec
+gemspec
+
+gem "rake"
+
+gem "test-unit", "~> 3.0"
+
+gem "rubocop"
+
+gem "irb"

LICENSE.txt

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+The MIT License (MIT)
+
+Copyright (c) 2023 kojix2
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

README.md

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+# ruby-hdf5
+
+experimental Ruby bindings for the HDF5 library
+
+## Development
+
+- c2ffi
+- c2ffi4rb
+
+## License
+
+The gem is available as open source under the terms of the [MIT License](https://opensource.org/licenses/MIT).

Rakefile

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+# frozen_string_literal: true
+
+require "bundler/gem_tasks"
+require "rake/testtask"
+
+Rake::TestTask.new(:test) do |t|
+  t.libs << "test"
+  t.libs << "lib"
+  t.test_files = FileList["test/**/*_test.rb"]
+end
+
+require "rubocop/rake_task"
+
+RuboCop::RakeTask.new
+
+task default: %i[test rubocop]

hdf5.json

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+# frozen_string_literal: true
+
+require "ffi"
+require_relative "hdf5/version"
+
+module HDF5
+  class Error < StandardError; end
+
+  class << self
+    attr_accessor :lib_path
+
+    def search_hdf5lib(name = nil)
+      return File.expand_path(name, ENV["HDF5_LIB_PATH"]) if ENV["HDF5_LIB_PATH"]
+
+      name = "libhdf5.#{FFI::Platform::LIBSUFFIX}"
+
+      begin
+        require "pkg-config"
+        libs = PKGConfig.libs("hdf5")
+        pattern = %r{(?<=-L)/[^ ]+}
+        p lib_dir = libs.scan(pattern).first
+        lib_path = File.expand_path(name, lib_dir)
+      rescue PackageConfig::NotFoundError
+        warn "hdf5.pc not found."
+      end
+      return lib_path if File.exist?(lib_path)
+
+      warn "htslib shared library '#{name}' not found."
+    end
+  end
+
+  self.lib_path = search_hdf5lib
+end
+
+require_relative "hdf5/ffi3"