Second implementation.

This is slightly more hackish, but offers more invocation options (the
main one being `curl http://host/bundle | sh`).

.gitignore

 hello
-hello.uu
 bundle
 output

Makefile

-bundle: hello.uu shellscript
-	cat shellscript hello.uu > bundle
-	chmod 755 bundle
-
-hello.uu: hello
-	uuencode hello output > hello.uu
+bundle: hello shellscript
+	awk '{if ($$0 == "INSERT BINARY HERE") {system("uuencode -m hello output")} else {print $$0}}' shellscript > bundle
+	chmod +x bundle
 
 hello: hello.c
 	gcc -o hello hello.c

shellscript

 #!/bin/sh
 set -eu
-uudecode "$0"
+uudecode << EOF
+INSERT BINARY HERE
+EOF
 ./output
-exit

test.bats

@@ -18,7 +18,6 @@ setup () {
 }
 
 @test 'cat bundle | sh' {
-    skip "This will fail"
     run sh -c 'cat bundle | sh'
     [ "$output" = "Hello world." ]
     [ "$status" -eq 0 ]