Add 'nixpkgs/' from commit 'abf060725d7614bd3b9f96764262dfbc2f9c2199'

git-subtree-dir: nixpkgs
git-subtree-mainline: 4e31070265257dc67d120c27e0f75c2344fdfa9a
git-subtree-split: abf060725d7614bd3b9f96764262dfbc2f9c2199

1 files changed, 31 insertions, 0 deletions

diff --git a/nixpkgs/nixos/lib/make-channel.nix b/nixpkgs/nixos/lib/make-channel.nix
new file mode 100644
index 000000000000..9b920b989fcf
--- /dev/null
+++ b/nixpkgs/nixos/lib/make-channel.nix
@@ -0,0 +1,31 @@
+/* Build a channel tarball. These contain, in addition to the nixpkgs
+ * expressions themselves, files that indicate the version of nixpkgs
+ * that they represent.
+ */
+{ pkgs, nixpkgs, version, versionSuffix }:
+
+pkgs.releaseTools.makeSourceTarball {
+  name = "nixos-channel";
+
+  src = nixpkgs;
+
+  officialRelease = false; # FIXME: fix this in makeSourceTarball
+  inherit version versionSuffix;
+
+  buildInputs = [ pkgs.nix ];
+
+  distPhase = ''
+    rm -rf .git
+    echo -n $VERSION_SUFFIX > .version-suffix
+    echo -n ${nixpkgs.rev or nixpkgs.shortRev} > .git-revision
+    releaseName=nixos-$VERSION$VERSION_SUFFIX
+    mkdir -p $out/tarballs
+    cp -prd . ../$releaseName
+    chmod -R u+w ../$releaseName
+    ln -s . ../$releaseName/nixpkgs # hack to make ‘<nixpkgs>’ work
+    NIX_STATE_DIR=$TMPDIR nix-env -f ../$releaseName/default.nix -qaP --meta --xml \* > /dev/null
+    cd ..
+    chmod -R u+w $releaseName
+    tar cfJ $out/tarballs/$releaseName.tar.xz $releaseName
+  '';
+}