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Fallback message if unable to get git revision #141

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Fallback message if unable to get git revision #141

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12 changes: 10 additions & 2 deletions cmake/modules/GetGitRevision.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -11,15 +11,23 @@ function(get_git_revision)
set(GIT_REVISION "Failed to get git revision." PARENT_SCOPE)
endif(NOT GIT)

exec_program(${GIT} ${CMAKE_CURRENT_SOURCE_DIR}
exec_program(${GIT} -C "${CMAKE_CURRENT_SOURCE_DIR}"
ARGS "rev-parse HEAD"
OUTPUT_VARIABLE REVISION
RETURN_VALUE rev_parse_ret
)
exec_program(${GIT} ${CMAKE_CURRENT_SOURCE_DIR}
exec_program(${GIT} -C "${CMAKE_CURRENT_SOURCE_DIR}"
ARGS "rev-parse --short HEAD"
OUTPUT_VARIABLE REVISION_SHORT
RETURN_VALUE rev_parse_short_ret
)

# Might not be building from a git repo
if((NOT ${rev_parse_ret} EQUAL "0") OR (NOT ${rev_parse_short_ret} EQUAL "0"))
set(GIT_REVISION_SHORT "Snapshot")
set(GIT_REVISION "Failed to get git revision.")
endif()

set(GIT_REVISION_SHORT ${REVISION_SHORT} PARENT_SCOPE)
set(GIT_REVISION ${REVISION} PARENT_SCOPE)

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