Make utils/build-toolchain compatible with Xcode new build system.#29025
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Xcode's new build system requires the Version entry in Info.plist to have a particular date-based format. Toolchains built using utils/build-toolchain now work with Xcode's new build system.
dan-zheng
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Jan 6, 2020
| MONTH=$(date +"%m") | ||
| DAY=$(date +"%d") | ||
| TOOLCHAIN_VERSION="swift-LOCAL-${YEAR}-${MONTH}-${DAY}-a" | ||
| TOOLCHAIN_VERSION="5.0.${YEAR}${MONTH}${DAY}" |
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Note: the toolchain version format was copied from Info.plist from macOS toolchains from https://swift.org/download.
The leading 5.0 component appears to refer to the current Swift version (which incidentally is no longer 5.0 for master HEAD).
I'm not sure how to make it programmatically refer to the current Swift version. Hardcoding it to 5.0 seems fine for now.
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We could generate this file from CMake. There is no way to do this currently. I think that this is reasonable.
compnerd
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Jan 6, 2020
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Xcode's new build system requires the Version entry in Info.plist to have a
particular date-based format.
Toolchains built using utils/build-toolchain now work with Xcode's new build
system.
Cherry-picks #28945 from
tensorflowbranch, with minor gardening.Resolves this issue when opening Xcode:
See tensorflow/swift#350 for more info about the issue.
Someone discovered this issue in
utils/build-toolchainon the forums but didn't submit a fix.