The old way of seeing the version of the program was by doing
something like this:
hap deploy -v
This patch makes it viewable by doing like this (which I feel is a
proper way to do):
hap -v
This is necessary because ‘scp’ has fewer options than normal ‘cp’ and so it
lacks flags that would prevent failing because of missing target location.
We add there these commands to ensure that copying of files always succeeds.
* Refactor/rewrite all the code
The change prepares solid ground for further improvements. This also fixes
at least two bugs:
* Proper support for empty lines and comments in build scripts.
* Previously switching to new releases was not atomic despite messing with
symlinks. This is because it deleted the current link before creating the
new one, but it should have created a new link and then use ‘mv’ to
replace the old one atomically. The code has been changed to work properly
now.
* Refresh the test suite as well
* Fix the build for older GHCs
* Use subshell for ‘cd’ commands
