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15 lines
552 B
Plaintext
15 lines
552 B
Plaintext
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; See http://nsis.sourceforge.net/Check_if_a_file_exists_at_compile_time for documentation
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!macro !defineifexist _VAR_NAME _FILE_NAME
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!tempfile _TEMPFILE
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!ifdef NSIS_WIN32_MAKENSIS
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; Windows - cmd.exe
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!system 'if exist "${_FILE_NAME}" echo !define ${_VAR_NAME} > "${_TEMPFILE}"'
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!else
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; Posix - sh
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!system 'if [ -e "${_FILE_NAME}" ]; then echo "!define ${_VAR_NAME}" > "${_TEMPFILE}"; fi'
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!endif
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!include '${_TEMPFILE}'
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!delfile '${_TEMPFILE}'
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!undef _TEMPFILE
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!macroend
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!define !defineifexist "!insertmacro !defineifexist"
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