mirror of
https://github.com/Kitware/CMake.git
synced 2026-01-05 05:11:15 -06:00
eb35d8884b
This feature was originally added by commit v3.9.0-rc1~71^2~2 (find_*: Add a new PackageRoot search path group, 2017-05-03) and documented by commit v3.9.0-rc1~71^2 (find_*: Add docs for PackageRoot search path group, 2017-05-03). However, we had to disable the feature and remove the documentation in commit v3.9.1~2^2 (find_*: Disable the PACKAGE_ROOT search path group for CMake 3.9, 2017-08-08) due to breaking projects that used `PackageName_ROOT` variables themselves. Add policy `CMP0074` to restore the `PackageName_ROOT` variable behavior in a compatible way. Also revise the stack of root paths to store the paths themselves rather than the package names. This way the policy can be considered at the `find_package` call site instead of individual `find_` calls inside a find module. Co-Author: Chuck Atkins <chuck.atkins@kitware.com> Issue: #17144
142 lines
4.5 KiB
CMake
142 lines
4.5 KiB
CMake
cmake_policy(SET CMP0057 NEW)
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cmake_policy(SET CMP0074 NEW)
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list(INSERT CMAKE_MODULE_PATH 0 ${CMAKE_CURRENT_SOURCE_DIR}/PackageRoot)
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set(PackageRoot_BASE ${CMAKE_CURRENT_SOURCE_DIR}/PackageRoot)
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function(PrintPath label path)
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string(REPLACE "${PackageRoot_BASE}" "<base>" out "${path}")
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message("${label}${out}")
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endfunction()
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macro(CleanUpPackageRootTest)
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unset(Foo_ROOT)
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unset(ENV{Foo_ROOT})
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unset(Bar_DIR)
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unset(BAR_CMAKE_FILE)
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unset(Bar_ROOT)
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unset(ENV{Bar_ROOT})
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unset(FOO_TEST_FILE_FOO)
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unset(FOO_TEST_FILE_ZOT)
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unset(FOO_TEST_PATH_FOO)
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unset(FOO_TEST_PATH_ZOT)
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unset(FOO_TEST_PROG_FOO)
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unset(BAR_TEST_FILE_FOO)
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unset(BAR_TEST_FILE_BAR)
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unset(BAR_TEST_FILE_ZOT)
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unset(BAR_TEST_PATH_FOO)
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unset(BAR_TEST_PATH_BAR)
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unset(BAR_TEST_PATH_ZOT)
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unset(BAR_TEST_PROG_FOO)
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unset(BAR_TEST_PROG_BAR)
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unset(Bar_DIR CACHE)
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unset(BAR_CMAKE_FILE CACHE)
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unset(FOO_TEST_FILE_FOO CACHE)
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unset(FOO_TEST_FILE_ZOT CACHE)
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unset(FOO_TEST_PATH_FOO CACHE)
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unset(FOO_TEST_PATH_ZOT CACHE)
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unset(FOO_TEST_PROG_FOO CACHE)
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unset(BAR_TEST_FILE_FOO CACHE)
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unset(BAR_TEST_FILE_BAR CACHE)
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unset(BAR_TEST_FILE_ZOT CACHE)
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unset(BAR_TEST_PATH_FOO CACHE)
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unset(BAR_TEST_PATH_BAR CACHE)
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unset(BAR_TEST_PATH_ZOT CACHE)
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unset(BAR_TEST_PROG_FOO CACHE)
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unset(BAR_TEST_PROG_BAR CACHE)
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endmacro()
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macro(RunPackageRootTest)
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message("----------")
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PrintPath("Foo_ROOT :" "${Foo_ROOT}")
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PrintPath("ENV{Foo_ROOT} :" "$ENV{Foo_ROOT}")
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PrintPath("Bar_DIR :" "${Bar_DIR}")
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PrintPath("Bar_ROOT :" "${Bar_ROOT}")
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PrintPath("ENV{Bar_ROOT} :" "$ENV{Bar_ROOT}")
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message("")
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find_package(Foo COMPONENTS BarConfig)
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message("find_package(Foo COMPONENTS BarConfig)")
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PrintPath("FOO_TEST_FILE_FOO :" "${FOO_TEST_FILE_FOO}")
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PrintPath("FOO_TEST_FILE_ZOT :" "${FOO_TEST_FILE_ZOT}")
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PrintPath("FOO_TEST_PATH_FOO :" "${FOO_TEST_PATH_FOO}")
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PrintPath("FOO_TEST_PATH_ZOT :" "${FOO_TEST_PATH_ZOT}")
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PrintPath("FOO_TEST_PROG_FOO :" "${FOO_TEST_PROG_FOO}")
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PrintPath("BAR_CMAKE_FILE :" "${BAR_CMAKE_FILE}")
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PrintPath("BAR_TEST_FILE_FOO :" "${BAR_TEST_FILE_FOO}")
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PrintPath("BAR_TEST_FILE_BAR :" "${BAR_TEST_FILE_BAR}")
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PrintPath("BAR_TEST_FILE_ZOT :" "${BAR_TEST_FILE_ZOT}")
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PrintPath("BAR_TEST_PATH_FOO :" "${BAR_TEST_PATH_FOO}")
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PrintPath("BAR_TEST_PATH_BAR :" "${BAR_TEST_PATH_BAR}")
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PrintPath("BAR_TEST_PATH_ZOT :" "${BAR_TEST_PATH_ZOT}")
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PrintPath("BAR_TEST_PROG_FOO :" "${BAR_TEST_PROG_FOO}")
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PrintPath("BAR_TEST_PROG_BAR :" "${BAR_TEST_PROG_BAR}")
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CleanUpPackageRootTest()
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message("")
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endmacro()
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#
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RunPackageRootTest()
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#
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set(Foo_ROOT ${PackageRoot_BASE}/foo/cmake_root)
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RunPackageRootTest()
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set(Foo_ROOT ${PackageRoot_BASE}/foo/cmake_root)
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set(Bar_ROOT ${PackageRoot_BASE}/bar/cmake_root)
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RunPackageRootTest()
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set(Foo_ROOT ${PackageRoot_BASE}/foo/cmake_root)
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set(ENV{Bar_ROOT} ${PackageRoot_BASE}/bar/env_root)
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RunPackageRootTest()
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set(Foo_ROOT ${PackageRoot_BASE}/foo/cmake_root)
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set(Bar_ROOT ${PackageRoot_BASE}/bar/cmake_root)
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set(ENV{Bar_ROOT} ${PackageRoot_BASE}/bar/env_root)
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RunPackageRootTest()
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#
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set(Foo_ROOT ${PackageRoot_BASE}/foo/cmake_root)
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set(ENV{Foo_ROOT} ${PackageRoot_BASE}/foo/cmake_root)
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RunPackageRootTest()
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set(Foo_ROOT ${PackageRoot_BASE}/foo/cmake_root)
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set(ENV{Foo_ROOT} ${PackageRoot_BASE}/foo/cmake_root)
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set(Bar_ROOT ${PackageRoot_BASE}/bar/cmake_root)
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RunPackageRootTest()
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set(Foo_ROOT ${PackageRoot_BASE}/foo/cmake_root)
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set(ENV{Foo_ROOT} ${PackageRoot_BASE}/foo/cmake_root)
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set(ENV{Bar_ROOT} ${PackageRoot_BASE}/bar/env_root)
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RunPackageRootTest()
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set(Foo_ROOT ${PackageRoot_BASE}/foo/cmake_root)
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set(ENV{Foo_ROOT} ${PackageRoot_BASE}/foo/cmake_root)
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set(Bar_ROOT ${PackageRoot_BASE}/bar/cmake_root)
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set(ENV{Bar_ROOT} ${PackageRoot_BASE}/bar/env_root)
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RunPackageRootTest()
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#
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set(Foo_ROOT ${PackageRoot_BASE}/foo/cmake_root)
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set(ENV{Foo_ROOT} ${PackageRoot_BASE}/foo/cmake_root)
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RunPackageRootTest()
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set(Foo_ROOT ${PackageRoot_BASE}/foo/cmake_root)
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set(ENV{Foo_ROOT} ${PackageRoot_BASE}/foo/cmake_root)
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set(Bar_ROOT ${PackageRoot_BASE}/bar/cmake_root)
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RunPackageRootTest()
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set(Foo_ROOT ${PackageRoot_BASE}/foo/cmake_root)
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set(ENV{Foo_ROOT} ${PackageRoot_BASE}/foo/cmake_root)
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set(ENV{Bar_ROOT} ${PackageRoot_BASE}/bar/env_root)
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RunPackageRootTest()
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set(Foo_ROOT ${PackageRoot_BASE}/foo/cmake_root)
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set(ENV{Foo_ROOT} ${PackageRoot_BASE}/foo/cmake_root)
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set(Bar_ROOT ${PackageRoot_BASE}/bar/cmake_root)
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set(ENV{Bar_ROOT} ${PackageRoot_BASE}/bar/env_root)
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RunPackageRootTest()
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