[swift-users] Disable "indexing while building" in Xcode9 (unknown argument: `-index-store-path`)

[Jens Persson]

I'm using Xcode 9 beta 2 (on Sierra 10.12.5) and my top 3 annoyances are:

1. Having to manually scroll the text editor sideways to follow the
caret/cursor as it moves out of view (!) while editing a line that is wider
than the text editor.

2. Non-working "File -> Add Files" (Options: Copy items if needed
unchecked) displaying cryptic error dialog message:
"An assistant session is already running on this window"
Have to use drag and drop as a workaround.

3. Jump to definition of std lib types / funcs more buggy than in 8.3.3
(sometimes not able to locate the definition, no visible cursor when in the
jumped-to editor).

I was surprised 1 hadn't been fixed in the second beta. Is everyone
assuming that it must have been reported thousands of times already, or am
I the only one experiencing it?

/Jens


On Wed, Jul 5, 2017 at 10:53 AM, Alex Blewitt via swift-users <
swift-users at swift.org> wrote:

> A workaround is to add SWIFT_INDEX_STORE_ENABLE=NO as a build time
> setting in Xcode, which prevents this argument being added to the call to
> swiftc.
>
>
>
> On 5 Jul 2017, at 02:02, Anders Hasselqvist via swift-users <
> swift-users at swift.org> wrote:
>
> Hi,
>
> I've been trying to use the swift4 snapshot toolchains with Xcode9 beta
> with little success.
>
> When building I get the error:
> "
> <unknown>:0: error: unknown argument: '-index-store-path'
> Command /Library/Developer/Toolchains/swift-4.0-DEVELOPMENT-
> SNAPSHOT-2017-06-29-a.xctoolchain/usr/bin/swiftc failed with exit code 1
> "
>
> I believe that this because of missing "indexing while building" support
> in the open source swift in the currently available snapshots. (The feature
> was merged just a few days ago: https://github.com/apple/swift/pull/10726)
>
> Is there a way to disable "indexing while building" in Xcode9?
>
> Thanks,
> Anders
>
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