When killing processes, android-studio uses `ps` to figure out which
subprocesses to kill. Without `ps` in the closure, this fails and the
process is never killed.
This causes problems when parsing the name attribute, e.g. for Repology
and parseDrvName. I've added "-unwrapped" to the derivation with the
downloaded content to keep it easier to differentiate between the two.
The old name "android-studio-preview" was a bit misleading while
"android-studio-beta" should clearly reflect that this is from the beta
channel. I hope that this does not break any workflows but since
"android-studio-preview" was most likely not called from any scripts the
risk should be low (also: most people probably use the stable version
anyway).
This change sets an environment variable to ensure that Android Studio
uses the correct drivers to avoid any breackage when trying to run a
native application on a virtual device.
Without proper configuration `android-studio` would be unable to load
the drivers for the AVD and yield messages like this:
```
3:32 PM Executing tasks: [:app:assembleDebug]
3:32 PM Emulator: libGL error: unable to load driver: i965_dri.so
3:32 PM Emulator: libGL error: driver pointer missing
3:32 PM Emulator: libGL error: failed to load driver: i965
3:32 PM Emulator: libGL error: unable to load driver: i965_dri.so
3:32 PM Emulator: libGL error: driver pointer missing
3:32 PM Emulator: libGL error: failed to load driver: i965
3:32 PM Emulator: libGL error: unable to load driver: swrast_dri.so
3:32 PM Emulator: libGL error: failed to load driver: swrast
3:32 PM Emulator: X Error of failed request: BadValue (integer parameter out of range for operation)
3:32 PM Emulator: Major opcode of failed request: 155 (GLX)
3:32 PM Emulator: Minor opcode of failed request: 24 (X_GLXCreateNewContext)
3:32 PM Emulator: Value in failed request: 0x0
3:32 PM Emulator: Serial number of failed request: 64
3:32 PM Emulator: Current serial number in output stream: 65
3:32 PM Emulator: emulator: ERROR: Missing initial data partition file: /home/ma27/.android/avd/Nexus_5X_API_27.avd/userdata.img
3:32 PM Emulator: Process finished with exit code 1
3:32 PM Gradle build finished with 2 warnings(s) in 6s 378ms
```
For further reference have a look at the following StackOverflow
message: https://stackoverflow.com/a/40790339
Added the `androidStudioPackages` attribute containing both
the `stable` and `preview` channels.
Changed the attribute `andorid-studio` to point to
`androidStudioPackages.stable`
Added the attribute `andorid-studio-preview` pointing to
`androidStudioPackages.preview`
I have tested this package using the new koltin support,
no issues found yet.
