cleanup examples and stray files

1 files changed, 30 insertions, 0 deletions

diff --git a/examples/ex-nextflow/nextflow-example1.nix b/examples/ex-nextflow/nextflow-example1.nix
new file mode 100644
index 0000000..b31984a
--- /dev/null
+++ b/examples/ex-nextflow/nextflow-example1.nix
@@ -0,0 +1,30 @@
+# This is a translation of the Nextflow example found at
+# https://www.nextflow.io/example1.html
+{ bionix ? import <bionix> {}
+, input ? ./sample.fa}:
+
+with bionix;
+with lib;
+
+let
+  splitSequences = fa: stage {
+    name = "splitSequences";
+    buildInputs = [ pkgs.gawk ];
+    buildCommand = ''
+      awk '/^>/{f="seq_"++d} {print > f}' ${fa}
+      mkdir $out
+      cp seq* $out
+    '';
+  };
+
+  reverse = fa: stage {
+    name = "reverse";
+    buildCommand = ''
+      ${pkgs.utillinux}/bin/rev ${fa} > $out
+    '';
+  };
+
+in pipe [
+  splitSequences
+  (each reverse)
+] input