CMake task now parses arguments on command line

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Question, Bug, or Feature?
Type: Bug

Enter Task Name: CMakeV1

Environment

• Server - Azure Pipelines
• Agent - Private (Ubuntu 18.04 and Windows 10)

Issue Description

The change from 1.166.1 to 1.170.1 has caused issues with the CMake task in our Windows and Linux pipelines. In particular, I believe the change to #12880 changes the behavior of CMake arguments that previous didn’t have to be quoted. For example, in our pipeline below cmake -DLLVM_ENABLE_PROJECTS=clang;lld;lldb is now causing problems because bash is interpreting the ‘;’. This can be fixed using quotes, but on Windows the solution is less obvious to me. I wanted to confirm this was the intended behavior of the change and if so figure out what the new Windows arguments should look like. See Windows error log below.

Error logs

On Linux:

Starting: CMake LLVM
==============================================================================
Task         : CMake
Description  : Build with the CMake cross-platform build system
Version      : 1.170.1
Author       : Microsoft Corporation
Help         : https://docs.microsoft.com/azure/devops/pipelines/tasks/build/cmake
==============================================================================
/usr/bin/cmake /vstsdrive/_work/7/s/llvm -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_COMPILER=/usr/bin/clang++ -DCMAKE_C_COMPILER=/usr/bin/clang -DCMAKE_INSTALL_PREFIX=/vstsdrive/_work/7/a/LLVMToolchain -DLLVM_ENABLE_PROJECTS=clang;lld;lldb ...
-- The C compiler identification is Clang 9.0.0
...
/bin/sh: 1: lld: not found
...
host: illegal option -- L
Usage: host [-aCdilrTvVw] [-c class] [-N ndots] [-t type] [-W time]
...
##[error]The process '/usr/bin/cmake' failed with exit code 1
##[error]CMake failed with error: The process '/usr/bin/cmake' failed with exit code 1
Finishing: CMake LLVM

On Windows:

Starting: CMake LLVM for VS 2017
==============================================================================
Task         : CMake
Description  : Build with the CMake cross-platform build system
Version      : 1.170.1
Author       : Microsoft Corporation
Help         : https://docs.microsoft.com/azure/devops/pipelines/tasks/build/cmake
==============================================================================
"C:\Program Files\CMake\bin\cmake.exe" e:\agent\_work\7\s/llvm "-DPYTHON_HOME=C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python36_64" -DCMAKE_BUILD_TYPE=Release -G "Visual Studio 15 2017 Win64" -Thost=x64 -DCMAKE_INSTALL_PREFIX=e:\agent\_work\7\a/LLVMToolchain -DLLVM_ENABLE_PROJECTS=clang;lld;lldb ...
'C:\Program' is not recognized as an internal or external command,
operable program or batch file.

##[error]The process 'C:\Program Files\CMake\bin\cmake.exe' failed with exit code 1
##[error]CMake failed with error: The process 'C:\Program Files\CMake\bin\cmake.exe' failed with exit code 1
Finishing: CMake LLVM for VS 2017

[anatolybolshakov]

@NathanielMcVicar @gilbertw @danieljurek Yes, this fix should be rolled out by tomorrow.

[NathanielMcVicar]

The issue appears resolved for us. Thanks everyone!