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#[===[.md:
# vcpkg_extract_source_archive
Extract an archive into the source directory. Deprecated in favor of [`vcpkg_extract_source_archive_ex`](vcpkg_extract_source_archive_ex.md).
## Usage
```cmake
vcpkg_extract_source_archive(
<${ARCHIVE}> [<${TARGET_DIRECTORY}>]
)
```
## Parameters
### ARCHIVE
The full path to the archive to be extracted.
This is usually obtained from calling [`vcpkg_download_distfile`](vcpkg_download_distfile.md).
### TARGET_DIRECTORY
If specified, the archive will be extracted into the target directory instead of `${CURRENT_BUILDTREES_DIR}/src/`.
This can be used to mimic git submodules, by extracting into a subdirectory of another archive.
## Notes
This command will also create a tracking file named <FILENAME>.extracted in the TARGET_DIRECTORY. This file, when present, will suppress the extraction of the archive.
## Examples
* [libraw](https://github.com/Microsoft/vcpkg/blob/master/ports/libraw/portfile.cmake)
* [protobuf](https://github.com/Microsoft/vcpkg/blob/master/ports/protobuf/portfile.cmake)
* [msgpack](https://github.com/Microsoft/vcpkg/blob/master/ports/msgpack/portfile.cmake)
#]===]
include(vcpkg_execute_required_process)
function(vcpkg_extract_source_archive ARCHIVE)
if(NOT ARGC EQUAL 2)
set(WORKING_DIRECTORY "${CURRENT_BUILDTREES_DIR}/src")
else()
set(WORKING_DIRECTORY ${ARGV1})
endif()
get_filename_component(ARCHIVE_FILENAME "${ARCHIVE}" NAME)
if(NOT EXISTS ${WORKING_DIRECTORY}/${ARCHIVE_FILENAME}.extracted)
message(STATUS "Extracting source ${ARCHIVE}")
file(MAKE_DIRECTORY ${WORKING_DIRECTORY})
vcpkg_execute_required_process(
ALLOW_IN_DOWNLOAD_MODE
COMMAND ${CMAKE_COMMAND} -E tar xjf ${ARCHIVE}
WORKING_DIRECTORY ${WORKING_DIRECTORY}
LOGNAME extract
)
file(WRITE ${WORKING_DIRECTORY}/${ARCHIVE_FILENAME}.extracted)
endif()
endfunction()
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