Refactor build.sh

- build.sh runs non-interactively
- build-tty.sh runs interactively with a pseudo tty
- both are shims to build-run.sh
- monad-native no longer depends on a tty

scripts/build-run.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env sh
+
+# --rm: always run ephemerally
+# --volume: path must be absolute, so resolve it
+# --workdir: start location for Make
+# $DOCKERFLAGS: additional flags
+# magrathea: contains all dependencies
+# bash: use $* over $@ so that multi-word parameters aren't split up
+docker run --rm \
+       --volume $(dirname $(pwd))/:/opt/monad-linux \
+       --workdir /opt/monad-linux/scripts \
+       $DOCKERFLAGS \
+       andschwa/magrathea:latest \
+       bash -c "$*"

scripts/build-tty.sh

@@ -0,0 +1,4 @@
+#!/usr/bin/env sh
+
+# Runs with a pseudo tty so that interactive shells can be opened
+DOCKERFLAGS="--interactive --tty" ./build-run.sh "$*"

scripts/build.sh

@@ -1,9 +1,5 @@
 #!/usr/bin/env sh
 
-# Docker requires the volume path to be absolute... so we resolve it ourselves.
-docker run --rm --interactive --tty \
-       --volume $(dirname $(pwd))/:/opt/monad \
-       --workdir /opt/monad/scripts \
-       andschwa/magrathea:latest \
-       bash -c "/opt/fakelogin; $*"
-# we use $* over $@ so that multi-word parameters aren't split up
+echo "$*"
+# Runs by non-interactively, just attaches output
+DOCKERFLAGS="--attach STDOUT --attach STDERR" ./build-run.sh "$*"