# CMake configuration for linuxdeployqt
# Not meant to replace the qmake build system, but for use with CMake based IDEs.

cmake_minimum_required(VERSION 3.2)

project(linuxdeployqt)

# read Git revision ID
execute_process(
    COMMAND git rev-parse --short HEAD
    WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
    OUTPUT_VARIABLE GIT_COMMIT
    OUTPUT_STRIP_TRAILING_WHITESPACE
)

# make sure Git revision ID and latest tag is not stored in the CMake cache
# otherwise, one would have to reset the CMake cache on every new commit to make sure the Git commit ID is up to date
unset(GIT_COMMIT CACHE)
unset(GIT_LATEST_TAG CACHE)

# read Git revision ID and latest tag number
execute_process(
    COMMAND git rev-parse --short HEAD
    WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
    OUTPUT_VARIABLE GIT_COMMIT
    OUTPUT_STRIP_TRAILING_WHITESPACE
)
execute_process(
    COMMAND git rev-list --tags --skip=1 --max-count=1
    WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
    OUTPUT_VARIABLE GIT_TAG_ID
    OUTPUT_STRIP_TRAILING_WHITESPACE
)
execute_process(
    COMMAND git describe --tags ${GIT_TAG_ID} --abbrev=0
    WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
    OUTPUT_VARIABLE GIT_TAG_NAME
    OUTPUT_STRIP_TRAILING_WHITESPACE
)

# set version and build number
set(VERSION 1-alpha)
if("$ENV{TRAVIS_BUILD_NUMBER}" STREQUAL "")
    set(BUILD_NUMBER "<local dev build>")
else()
    set(BUILD_NUMBER "$ENV{TRAVIS_BUILD_NUMBER}")
endif()

# get current date
execute_process(
    COMMAND env LC_ALL=C date -u "+%Y-%m-%d %H:%M:%S %Z"
    OUTPUT_VARIABLE DATE
    OUTPUT_STRIP_TRAILING_WHITESPACE
)

add_subdirectory(tools/linuxdeployqt)