Factor the NixOS channel building code out into its own file, so I can use it elsewhere

1 files changed, 31 insertions, 0 deletions

diff --git a/nixos/lib/make-channel.nix b/nixos/lib/make-channel.nix
new file mode 100644
index 00000000000..7764527ffa7
--- /dev/null
+++ b/nixos/lib/make-channel.nix
@@ -0,0 +1,31 @@
+{ pkgs, nixpkgs, version, versionSuffix }:
+
+pkgs.releaseTools.makeSourceTarball {
+  name = "nixos-channel";
+
+  src = nixpkgs;
+
+  officialRelease = false; # FIXME: fix this in makeSourceTarball
+  inherit version versionSuffix;
+
+  buildInputs = [ pkgs.nixUnstable ];
+
+  expr = builtins.readFile ./channel-expr.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 $out/tarballs
+    mkdir ../$releaseName
+    cp -prd . ../$releaseName/nixpkgs
+    chmod -R u+w ../$releaseName
+    ln -s nixpkgs/nixos ../$releaseName/nixos
+    echo "$expr" > ../$releaseName/default.nix
+    NIX_STATE_DIR=$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
+  '';
+}