Make build with the new ab --- but the tests fail.

build/zip.py

@@ -3,14 +3,6 @@ from build.ab import (
     simplerule,
     TargetsMap,
     filenameof,
-    emit,
-)
-
-emit(
-    """
-ZIP ?= zip
-ZIPNOTE ?= zipnote
-"""
 )
 
 
@@ -18,20 +10,18 @@ ZIPNOTE ?= zipnote
 def zip(
     self, name, flags="", items: TargetsMap = {}, extension="zip", label="ZIP"
 ):
-    cs = ["rm -f {outs[0]}"]
+    cs = ["$(PYTHON) build/_zip.py -z $[outs]"]
 
     ins = []
     for k, v in items.items():
-        cs += [
-            "cat %s | $(ZIP) -q %s {outs[0]} -" % (filenameof(v), flags),
-            "printf '@ -\\n@=%s\\n' | $(ZIPNOTE) -w {outs[0]}" % k,
-        ]
+        cs += [f"-f {k} {filenameof(v)}"]
         ins += [v]
 
     simplerule(
         replaces=self,
         ins=ins,
+        deps=["build/_zip.py"],
         outs=[f"={self.localname}." + extension],
-        commands=cs,
+        commands=[" ".join(cs)],
         label=label,
     )