Fixes `OUTPUT_VARIABLE`, `ERROR_VARIABLE`.
vcpkg always wants logfiles. CMake (`execute_process`) doesn't send
stdout/stderr to files and variables at the same time, and even "the
precedence is not specified". So simultaneous output has to be handled
in `vcpkg_execute_required_process`.
At this occasion, port the arguments for stripping trailing whitespace.
`tensorflow-common` implicitly relied on the broken behavior. I chose
the minimal fix: drop the pointless calls, just set the empty value.
* Disambiguate saved log files
* CI [skip actions]
* CI [skip actions]
* CI [skip actions]
* Use ALIAS keyword instead of auto-numbering
* Update versions
* Always save config.log, even on error
* Always save config.log and CMakeCache.txt[.log]
* Add SAVE_LOG_FILES option
* Make implicit lookups explicit
* Update versions
* [docs] Delete embedded documentation in favor of docs/
Drive-by for the helper ports:
1. "documentation": "https://vcpkg.io/en/docs/README.html"
2. "license": "MIT"
3. Use `include_guard(GLOBAL)` in all script files
4. Make sure any persistent variables are saved to the cache
* [docs] Restore empty regenerate.ps1 to satisfy Azure Pipelines
* [docs] PR comments
* [vcpkg docs] Change how documenting port functions works
Instead of using `##`, use comment blocks for documentation.
Also, add some minor docs and change RST -> MD
so we actually get docs generated.
* add CI stuff
* regenerate docs
* fix vcpkg_find_acquire_program to not use _execute_process
* [portfile functions] Override execute_process() to accept ALLOW_IN_DOWNLOAD_MODE option
* [vcpkg install] Set VCPKG_DOWNLOAD_MODE when using --only-downloads option
* [vcpkg_find_acquire_program] Allow in Download Mode
* Don't stop when build fails for a package
* Download sources for all packages in dependency graph
* Improve output messages
* Enable acquiring MSYS packages in download mode
* Documentation
* Update documentation
* execute_process() always fails on Download Mode
* Regenerate docs and fix formatting
* Run clang-format
* Use _execute_process on vcpkg_from_<source> helpers
* Fix calls to _execute_process() when not in Download Mode
* [portfile functions] Override execute_process() to accept ALLOW_IN_DOWNLOAD_MODE option
* [vcpkg install] Set VCPKG_DOWNLOAD_MODE when using --only-downloads option
* [vcpkg_find_acquire_program] Allow in Download Mode
* Don't stop when build fails for a package
* Download sources for all packages in dependency graph
* Improve output messages
* Enable acquiring MSYS packages in download mode
* Documentation
* Update documentation
* execute_process() always fails on Download Mode
* Regenerate docs and fix formatting
* Run clang-format
* Use _execute_process on vcpkg_from_<source> helpers
In Warning or Error, indented text is considered preformatted.
Otherwise CMake tries to format it itself, and there are issues with
whitespace in the path
