Recommend 'sandbox=relaxed'

[alexfmpe]

sandbox = true is failing for mac os nix builds.

[ryantrinkle]

@alexfmpe Has it been tested that this doesn't break #6?

[alexfmpe]

Not yet

[ryantrinkle]

Perhaps we could add something to the impure tests that test that and this? Also: i guess we need to set up some kind of CI for running the impure tests on both macOS and Linux

…

On Sun, Jun 3, 2018 at 3:33 PM, Alexandre Esteves ***@***.***> wrote: Not yet — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#55 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ABGlYKMK4RWw3u8_n-51eurg1HF4H8JLks5t5DoNgaJpZM4UYNKd> .

[ali-abrar]

What does "relaxed" actually do? Sorry if I missed the explanation somewhere.

[alexfmpe]

From the manual:

If this option is set to relaxed, then fixed-output derivations and derivations that have the __noChroot attribute set to true do not run in sandboxes.

We might have to change some things to allow running with relaxed though.
On macOS sandbox=false works while relaxed yields

$ nix-build -A ios.frontend -o result-ios --check
checking outputs of '/nix/store/xk4xhclhj6hf0z5nkfr5m32h3xwjb0hj-frontend-app.drv'...
++ mkdir -p /nix/store/6x98v2381hgdi8nwl8rf72k9hjmkbz3v-frontend-app/frontend.app
++ ln -s /nix/store/3g3557wcabdwafpkz4k3gcpfj86wr17n-Info.plist /nix/store/6x98v2381hgdi8nwl8rf72k9hjmkbz3v-frontend-app/frontend.app/Info.plist
ln: failed to create symbolic link '/nix/store/6x98v2381hgdi8nwl8rf72k9hjmkbz3v-frontend-app/frontend.app/Info.plist': File exists

[alexfmpe]

#83 dealt with this