windows: add sshUnquoted to for interpolated parameters

This partially reverts commit 525b91cb21.

artiq-fast/windows/qemu.nix

@@ -33,13 +33,14 @@ let
 
   # Pass empty config file to prevent ssh from failing to create ~/.ssh
   sshOpts = "-F /dev/null -o StrictHostKeyChecking=accept-new -o UserKnownHostsFile=\$TMP/known_hosts";
-  ssh = cmd: ''
-    echo ssh windows '${cmd}'
+  sshWithQuotes = quotes: cmd: ''
+    echo ssh windows ${quotes}${cmd}${quotes}
     ${sshpass}/bin/sshpass -p${sshPassword} -- \
       ${openssh}/bin/ssh  -np 2022 ${sshOpts} \
       ${sshUser}@localhost \
-      '${cmd}'
+      ${quotes}${cmd}${quotes}
   '';
+  ssh = sshWithQuotes "'";
   scp = src: target: ''
     echo "Copy ${src} to ${target}"
     ${sshpass}/bin/sshpass -p${sshPassword} -- \
@@ -49,6 +50,6 @@ let
   
 in
 {
-  inherit qemu-img runQemu ssh scp;
+  inherit qemu-img runQemu ssh sshWithQuotes scp;
   inputs = [ qemu_kvm openssh sshpass ];
 }

artiq-fast/windows/run-test.nix

@@ -17,6 +17,7 @@ let
   };
   # Double-escape because we produce a script from a shell heredoc
   ssh = cmd: qemu.ssh (escape cmd);
+  sshUnquoted = qemu.sshWithQuotes "\"";
   scp = qemu.scp;
   condaEnv = "artiq-env";
   tcpPorts = [ 1380 1381 1382 1383 ];
@@ -53,14 +54,11 @@ stdenv.mkDerivation {
     echo "Wait for Windows to boot"
     sleep 10
     ${ssh "ver"}
-    # FIXME: clean up this hack with the for loops
-    for pkg in ${sipycoPkg}/noarch/sipyco*.tar.bz2 ; do
-      ${scp "\\$pkg" "sipyco.tar.bz2"}
-      ${ssh "anaconda\\scripts\\activate ${condaEnv} && conda install sipyco.tar.bz2"}
-    done
-    for pkg in ${artiqPkg}/noarch/artiq*.tar.bz2 ; do
-      ${scp "\\$pkg" "artiq.tar.bz2"}
-      ${ssh "anaconda\\scripts\\activate ${condaEnv} && conda install artiq.tar.bz2"}
+    i=0
+    for pkg in ${sipycoPkg}/noarch/sipyco*.tar.bz2 ${artiqPkg}/noarch/artiq*.tar.bz2 ; do
+      ${scp "\\$pkg" "to_install\\$i.tar.bz2"}
+      ${sshUnquoted "anaconda\\scripts\\activate ${condaEnv} && conda install to_install\\$i.tar.bz2"}
+      ((i=i+1))
     done
 
     # Schedule a timed shutdown against hanging test runs