Define features for each varset.

Author: artob

Rakefile

@@ -0,0 +1,39 @@
+VERSION = File.read('VERSION').chomp
+
+task default: %w(varset:list)
+
+namespace :varset do
+  task :list do
+    varsets.each { |varset| puts varset }
+  end
+
+  task :features do
+    puts %{all = [#{varsets.map(&:to_s).map(&:inspect).join(', ')}]}
+    varsets.each { |varset| puts "#{varset} = []" }
+  end
+
+  task :'features.rs' do
+    varsets.each do |varset|
+      puts %{    #[cfg(feature = "#{varset}")]}
+      puts %{    #{varset.to_s.inspect},}
+    end
+  end
+
+  task :modules do
+    varsets.each do |varset|
+      puts
+      puts %{#[cfg(feature = "#{varset}")]}
+      puts %{pub mod #{varset};}
+      puts %{#[cfg(feature = "#{varset}")]}
+      puts %{pub use #{varset}::*;}
+    end
+  end
+end
+
+def varsets
+  require 'pathname'
+  result = Dir['lib/getenv/src/varsets/*.rs'].map do |p|
+    Pathname(p).basename.sub_ext('').to_s.to_sym
+  end
+  result.sort
+end

lib/getenv/Cargo.toml

@@ -16,9 +16,53 @@ publish.workspace = true
 
 [features]
 default = ["all", "std"]
-all = []
 std = ["dogma/std"]
-unstable = []
+all = [
+    "aws",
+    "cargo",
+    "conda",
+    "cuda",
+    "docker",
+    "git",
+    "go",
+    "homebrew",
+    "java",
+    "locale",
+    "macos",
+    "near",
+    "node",
+    "openssl",
+    "posix",
+    "proxy",
+    "python",
+    "ruby",
+    "rust",
+    "ssh",
+    "windows",
+    "xdg",
+]
+aws = []
+cargo = []
+conda = []
+cuda = []
+docker = []
+git = []
+go = []
+homebrew = []
+java = []
+locale = []
+macos = []
+near = []
+node = []
+openssl = []
+posix = []
+proxy = []
+python = []
+ruby = []
+rust = []
+ssh = []
+windows = []
+xdg = []
 
 [dev-dependencies]
 

lib/getenv/src/features.rs

@@ -2,6 +2,48 @@
 
 /// The set of features that are enabled in this build of the crate.
 pub static FEATURES: &[&str] = &[
-    #[cfg(feature = "unstable")]
-    "unstable",
+    #[cfg(feature = "aws")]
+    "aws",
+    #[cfg(feature = "cargo")]
+    "cargo",
+    #[cfg(feature = "conda")]
+    "conda",
+    #[cfg(feature = "cuda")]
+    "cuda",
+    #[cfg(feature = "docker")]
+    "docker",
+    #[cfg(feature = "git")]
+    "git",
+    #[cfg(feature = "go")]
+    "go",
+    #[cfg(feature = "homebrew")]
+    "homebrew",
+    #[cfg(feature = "java")]
+    "java",
+    #[cfg(feature = "locale")]
+    "locale",
+    #[cfg(feature = "macos")]
+    "macos",
+    #[cfg(feature = "near")]
+    "near",
+    #[cfg(feature = "node")]
+    "node",
+    #[cfg(feature = "openssl")]
+    "openssl",
+    #[cfg(feature = "posix")]
+    "posix",
+    #[cfg(feature = "proxy")]
+    "proxy",
+    #[cfg(feature = "python")]
+    "python",
+    #[cfg(feature = "ruby")]
+    "ruby",
+    #[cfg(feature = "rust")]
+    "rust",
+    #[cfg(feature = "ssh")]
+    "ssh",
+    #[cfg(feature = "windows")]
+    "windows",
+    #[cfg(feature = "xdg")]
+    "xdg",
 ];

lib/getenv/src/varsets.rs

@@ -1,67 +1,111 @@
 // This is free and unencumbered software released into the public domain.
 
+#[cfg(feature = "aws")]
 pub mod aws;
+#[cfg(feature = "aws")]
 pub use aws::*;
 
+#[cfg(feature = "cargo")]
 pub mod cargo;
+#[cfg(feature = "cargo")]
 pub use cargo::*;
 
+#[cfg(feature = "conda")]
 pub mod conda;
+#[cfg(feature = "conda")]
 pub use conda::*;
 
+#[cfg(feature = "cuda")]
 pub mod cuda;
+#[cfg(feature = "cuda")]
 pub use cuda::*;
 
+#[cfg(feature = "docker")]
 pub mod docker;
+#[cfg(feature = "docker")]
 pub use docker::*;
 
+#[cfg(feature = "git")]
 pub mod git;
+#[cfg(feature = "git")]
 pub use git::*;
 
+#[cfg(feature = "go")]
 pub mod go;
+#[cfg(feature = "go")]
 pub use go::*;
 
+#[cfg(feature = "homebrew")]
 pub mod homebrew;
+#[cfg(feature = "homebrew")]
 pub use homebrew::*;
 
+#[cfg(feature = "java")]
 pub mod java;
+#[cfg(feature = "java")]
 pub use java::*;
 
+#[cfg(feature = "locale")]
 pub mod locale;
+#[cfg(feature = "locale")]
 pub use locale::*;
 
+#[cfg(feature = "macos")]
 pub mod macos;
+#[cfg(feature = "macos")]
 pub use macos::*;
 
+#[cfg(feature = "near")]
 pub mod near;
+#[cfg(feature = "near")]
 pub use near::*;
 
+#[cfg(feature = "node")]
 pub mod node;
+#[cfg(feature = "node")]
 pub use node::*;
 
+#[cfg(feature = "openssl")]
 pub mod openssl;
+#[cfg(feature = "openssl")]
 pub use openssl::*;
 
+#[cfg(feature = "posix")]
 pub mod posix;
+#[cfg(feature = "posix")]
 pub use posix::*;
 
+#[cfg(feature = "proxy")]
 pub mod proxy;
+#[cfg(feature = "proxy")]
 pub use proxy::*;
 
+#[cfg(feature = "python")]
 pub mod python;
+#[cfg(feature = "python")]
 pub use python::*;
 
+#[cfg(feature = "ruby")]
 pub mod ruby;
+#[cfg(feature = "ruby")]
 pub use ruby::*;
 
+#[cfg(feature = "rust")]
 pub mod rust;
+#[cfg(feature = "rust")]
 pub use rust::*;
 
+#[cfg(feature = "ssh")]
 pub mod ssh;
+#[cfg(feature = "ssh")]
 pub use ssh::*;
 
+#[cfg(feature = "windows")]
 pub mod windows;
+#[cfg(feature = "windows")]
 pub use windows::*;
 
+#[cfg(feature = "xdg")]
 pub mod xdg;
+#[cfg(feature = "xdg")]
 pub use xdg::*;