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cmake: Allow GetGitRevisionDescription to take arbitrary directory paths

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Angus Gratton 2018-02-27 13:21:37 +11:00 committed by Angus Gratton
parent 7d9ba66f83
commit 95e17d6d92
1 changed files with 12 additions and 9 deletions
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21
tools/cmake/third_party/GetGitRevisionDescription.cmake vendored
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@ -3,16 +3,16 @@
# These functions force a re-configure on each git commit so that you can
# trust the values of the variables in your build system.
#
# get_git_head_revision(<refspecvar> <hashvar> [<additional arguments to git describe> ...])
# get_git_head_revision(<refspecvar> <hashvar> <repo dir> [<additional arguments to git describe> ...])
#
# Returns the refspec and sha hash of the current head revision
#
# git_describe(<var> [<additional arguments to git describe> ...])
# git_describe(<var> <repo dir> [<additional arguments to git describe> ...])
#
# Returns the results of git describe on the source tree, and adjusting
# the output so that it tests false if an error occurs.
#
# git_get_exact_tag(<var> [<additional arguments to git describe> ...])
# git_get_exact_tag(<var> <repo dir> [<additional arguments to git describe> ...])
#
# Returns the results of git describe --exact-match on the source tree,
# and adjusting the output so that it tests false if there was no exact
@ -29,6 +29,9 @@
# Distributed under the Boost Software License, Version 1.0.
# (See accompanying file LICENSE_1_0.txt or copy at
# http://www.boost.org/LICENSE_1_0.txt)
#
# Updated 2018 Espressif Systems to add _repo_dir argument
# to get revision of other repositories
if(__get_git_revision_description)
return()
@ -39,8 +42,8 @@ set(__get_git_revision_description YES)
# to find the path to this module rather than the path to a calling list file
get_filename_component(_gitdescmoddir ${CMAKE_CURRENT_LIST_FILE} PATH)
function(get_git_head_revision _refspecvar _hashvar)
set(GIT_PARENT_DIR "${CMAKE_CURRENT_SOURCE_DIR}")
function(get_git_head_revision _refspecvar _hashvar _repo_dir)
set(GIT_PARENT_DIR "${_repo_dir}")
set(GIT_DIR "${GIT_PARENT_DIR}/.git")
while(NOT EXISTS "${GIT_DIR}") # .git dir not found, search parent directories
set(GIT_PREVIOUS_PARENT "${GIT_PARENT_DIR}")
@ -80,11 +83,11 @@ function(get_git_head_revision _refspecvar _hashvar)
set(${_hashvar} "${HEAD_HASH}" PARENT_SCOPE)
endfunction()
function(git_describe _var)
function(git_describe _var _repo_dir)
if(NOT GIT_FOUND)
find_package(Git QUIET)
endif()
get_git_head_revision(refspec hash)
get_git_head_revision(refspec hash "${_repo_dir}")
if(NOT GIT_FOUND)
set(${_var} "GIT-NOTFOUND" PARENT_SCOPE)
return()
@ -124,7 +127,7 @@ function(git_describe _var)
set(${_var} "${out}" PARENT_SCOPE)
endfunction()
function(git_get_exact_tag _var)
git_describe(out --exact-match ${ARGN})
function(git_get_exact_tag _var _repo_dir)
git_describe(out "${_repo_dir}" --exact-match ${ARGN})
set(${_var} "${out}" PARENT_SCOPE)
endfunction()