Add 'third_party/nix/' from commit 'be66c7a6b24e3c3c6157fd37b86c7203d14acf10' r/724

git-subtree-dir: third_party/nix
git-subtree-mainline: cf8cd640c1adf74a3706efbcb0ea4625da106fb2
git-subtree-split: be66c7a6b24e3c3c6157fd37b86c7203d14acf10

1 files changed, 34 insertions, 0 deletions

diff --git a/third_party/nix/perl/lib/Nix/Config.pm.in b/third_party/nix/perl/lib/Nix/Config.pm.in
new file mode 100644
index 0000000000..67a20c3f41
--- /dev/null
+++ b/third_party/nix/perl/lib/Nix/Config.pm.in
@@ -0,0 +1,34 @@
+package Nix::Config;
+
+use MIME::Base64;
+
+$version = "@PACKAGE_VERSION@";
+
+$binDir = $ENV{"NIX_BIN_DIR"} || "@nixbindir@";
+$libexecDir = $ENV{"NIX_LIBEXEC_DIR"} || "@nixlibexecdir@";
+$stateDir = $ENV{"NIX_STATE_DIR"} || "@nixlocalstatedir@/nix";
+$logDir = $ENV{"NIX_LOG_DIR"} || "@nixlocalstatedir@/log/nix";
+$confDir = $ENV{"NIX_CONF_DIR"} || "@nixsysconfdir@/nix";
+$storeDir = $ENV{"NIX_STORE_DIR"} || "@nixstoredir@";
+
+$bzip2 = "@bzip2@";
+$xz = "@xz@";
+$curl = "@curl@";
+
+$useBindings = 1;
+
+%config = ();
+
+sub readConfig {
+    my $config = "$confDir/nix.conf";
+    return unless -f $config;
+
+    open CONFIG, "<$config" or die "cannot open '$config'";
+    while (<CONFIG>) {
+        /^\s*([\w\-\.]+)\s*=\s*(.*)$/ or next;
+        $config{$1} = $2;
+    }
+    close CONFIG;
+}
+
+return 1;