snap: init

1 files changed, 22 insertions, 0 deletions

diff --git a/tools/snap-index.nix b/tools/snap-index.nix
new file mode 100644
index 0000000..b72ee01
--- /dev/null
+++ b/tools/snap-index.nix
@@ -0,0 +1,22 @@
+{ bionix
+, flags ? null
+}:
+
+ref:
+
+with bionix;
+with lib;
+with types;
+
+assert (matchFiletype "snap-index" { fa = _: true; } ref);
+
+stage {
+  name = "snap-index";
+  buildInputs = [ bionix.snap.app ];
+  buildCommand = ''
+    ln -s ${ref} ref.fa
+    mkdir $out
+    snap-aligner index ref.fa $out -t$NIX_BUILD_CORES ${optionalString (flags != null) flags}
+  '';
+  passthru.multicore = true;
+}