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- set(HEAD_HASH)
- file(READ "@HEAD_FILE@" HEAD_CONTENTS LIMIT 1024)
- string(STRIP "${HEAD_CONTENTS}" HEAD_CONTENTS)
- if(HEAD_CONTENTS MATCHES "ref")
- # named branch
- string(REPLACE "ref: " "" HEAD_REF "${HEAD_CONTENTS}")
- if(EXISTS "@GIT_DIR@/${HEAD_REF}")
- configure_file("@GIT_DIR@/${HEAD_REF}" "@GIT_DATA@/head-ref" COPYONLY)
- elseif(EXISTS "@GIT_DIR@/logs/${HEAD_REF}")
- configure_file("@GIT_DIR@/logs/${HEAD_REF}" "@GIT_DATA@/head-ref" COPYONLY)
- set(HEAD_HASH "${HEAD_REF}")
- endif()
- else()
- # detached HEAD
- configure_file("@GIT_DIR@/HEAD" "@GIT_DATA@/head-ref" COPYONLY)
- endif()
- if(NOT HEAD_HASH)
- file(READ "@GIT_DATA@/head-ref" HEAD_HASH LIMIT 1024)
- string(STRIP "${HEAD_HASH}" HEAD_HASH)
- endif()
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