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# This file is part of the TrinityCore Project. See AUTHORS file for Copyright information
#
# This file is free software; as a special exception the author gives
# unlimited permission to copy and/or distribute it, with or without
# modifications, as long as this notice is preserved.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY, to the extent permitted by law; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# User has manually chosen to ignore the git-tests, so throw them a warning.
# This is done EACH compile so they can be alerted about the consequences.
if(NOT BUILDDIR)
# Workaround for funny MSVC behaviour - this segment is only used when using cmake gui
set(BUILDDIR ${CMAKE_BINARY_DIR})
endif()
if(WITHOUT_GIT)
set(rev_date "1970-01-01 00:00:00 +0000")
set(rev_hash "unknown")
set(rev_branch "Archived")
else()
if(GIT_EXECUTABLE)
# Retrieve repository dirty status
execute_process(
COMMAND "${GIT_EXECUTABLE}" diff-index --quiet HEAD --
WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}"
RESULT_VARIABLE is_dirty
)
# Create a revision-string that we can use
execute_process(
COMMAND "${GIT_EXECUTABLE}" rev-parse --short=12 HEAD
WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}"
OUTPUT_VARIABLE rev_hash
OUTPUT_STRIP_TRAILING_WHITESPACE
ERROR_QUIET
)
# Append dirty marker to commit hash
if(is_dirty)
set(rev_hash "${rev_hash}+")
endif()
# And grab the commits timestamp
execute_process(
COMMAND "${GIT_EXECUTABLE}" show -s --format=%ci
WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}"
OUTPUT_VARIABLE rev_date
OUTPUT_STRIP_TRAILING_WHITESPACE
ERROR_QUIET
)
# Also retrieve branch name
execute_process(
COMMAND "${GIT_EXECUTABLE}" symbolic-ref -q --short HEAD
WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}"
OUTPUT_VARIABLE rev_branch
OUTPUT_STRIP_TRAILING_WHITESPACE
ERROR_QUIET
)
# when ran on CI, repository is put in detached HEAD state, attempt to scan for known local branches
if(NOT rev_branch)
execute_process(
COMMAND "${GIT_EXECUTABLE}" for-each-ref --points-at=HEAD refs/heads "--format=%(refname:short)"
WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}"
OUTPUT_VARIABLE rev_branch
OUTPUT_STRIP_TRAILING_WHITESPACE
ERROR_QUIET
)
endif()
# if local branch scan didn't find anything, try remote branches
if(NOT rev_branch)
execute_process(
COMMAND "${GIT_EXECUTABLE}" for-each-ref --points-at=HEAD refs/remotes "--format=%(refname:short)"
WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}"
OUTPUT_VARIABLE rev_branch
OUTPUT_STRIP_TRAILING_WHITESPACE
ERROR_QUIET
)
endif()
# give up finding a name for branch, use commit hash
if(NOT rev_branch)
set(rev_branch ${rev_hash})
endif()
# normalize branch to single line (for-each-ref can output multiple lines if there are multiple branches on the same commit)
string(REGEX MATCH "^[^ \t\r\n]+" rev_branch ${rev_branch})
endif()
# Last minute check - ensure that we have a proper revision
# If everything above fails (means the user has erased the git revision control directory or removed the origin/HEAD tag)
if(NOT rev_hash)
# No valid ways available to find/set the revision/hash, so let's force some defaults
message(STATUS "
Could not find a proper repository signature (hash) - you may need to pull tags with git fetch -t
Continuing anyway - note that the versionstring will be set to \"unknown 1970-01-01 00:00:00 (Archived)\"")
set(rev_date "1970-01-01 00:00:00 +0000")
set(rev_hash "unknown")
set(rev_branch "Archived")
else()
endif()
endif()
# Create the actual revision_data.h file from the above params
if(NOT "${rev_hash_cached}" STREQUAL "${rev_hash}" OR NOT "${rev_branch_cached}" STREQUAL "${rev_branch}" OR NOT EXISTS "${BUILDDIR}/revision_data.h")
configure_file(
"${CMAKE_SOURCE_DIR}/revision_data.h.in.cmake"
"${BUILDDIR}/revision_data.h"
@ONLY
)
set(rev_hash_cached "${rev_hash}" CACHE INTERNAL "Cached commit-hash")
set(rev_branch_cached "${rev_branch}" CACHE INTERNAL "Cached branch name")
endif()
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