79 lines
		
	
	
		
			3.1 KiB
		
	
	
	
		
			PHP
		
	
	
	
		
		
			
		
	
	
			79 lines
		
	
	
		
			3.1 KiB
		
	
	
	
		
			PHP
		
	
	
	
|  | #
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|  | # Originally created by John Embretsen, 2011-01-26.
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|  | #
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|  | # Checks for the existence of Perl modules DBI and DBD::mysql as seen from the
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|  | # perl installation used by "external" executable perl scripts, i.e. scripts
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|  | # that are executed as standalone scripts interpreted by the perl installation
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|  | # specified by the "shebang" line in the top of these scripts.
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|  | #
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|  | # If either module is not found, the test will be skipped.
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|  | #
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|  | # For use in tests that call perl scripts that require these modules.
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|  | #
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|  | # This file is intended to work on Unix. Windows may need different treatment.
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|  | # Reasoning:
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|  | #   - "shebangs" are not relevant on Windows, but need to be handled here.
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|  | #   - Perl scripts cannot be made executable on Windows, interpreter must be 
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|  | #     specified.
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|  | #
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|  | # Note that if there are multiple perl installations and not all have the
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|  | # required modules, this check may fail even if the perl in path does have
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|  | # the modules available. This may happen if the perl specified by the script's 
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|  | # shebang (e.g. #!/usr/bin/perl) does not have these modules, and script is 
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|  | # called without specifying the perl interpreter. However, this will be 
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|  | # a correct result in cases where a test calls a script with a similar shebang.
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|  | #
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|  | ################################################################################
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|  | 
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|  | --source include/not_windows.inc | ||
|  | 
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|  | # We jump through some hoops since there is no direct way to check if an 
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|  | # external command went OK or not from a mysql-test file:
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|  | #
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|  | #   - In theory, we could do as simple as "exec perl -MDBI -MDBD::mysql -e 1",
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|  | #     however we cannot check the result (exit code) from within a test script. 
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|  | #     Also, this may not yield the same result as other uses of perl due to the 
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|  | #     shebang issue mentioned above.
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|  | #   - Instead we use a separate helper perl script that checks for the modules.
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|  | #   - If the modules are found, the perl script leaves a file which sets a
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|  | #     variable that can be read by this file.
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|  | #     If the modules are not found, the perl script does not set this variable,
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|  | #     but leaves an empty file instead.
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|  | #
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|  | # This is done because there is apparently no direct way to transfer
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|  | # information from perl to the test script itself.
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|  | 
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|  | --disable_query_log | ||
|  | --disable_result_log | ||
|  | --disable_warnings | ||
|  | 
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|  | # We do not use embedded perl in this script because that would not have yielded
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|  | # correct results for a situation where an external Perl script is called like
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|  | # "scriptname" instead of "perl scriptname" and the shebang in the script points
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|  | # to a specific perl that may be different than the perl in PATH.
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|  | #
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|  | # Instead, we call a separate helper script which checks for the modules in its
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|  | # own environment. We call it without "perl" in front.
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|  | 
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|  | --let $perlChecker= $MYSQLTEST_VARDIR/std_data/checkDBI_DBD-mysql.pl | ||
|  | --let $resultFile= $MYSQL_TMP_DIR/dbidbd-mysql.txt | ||
|  | 
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|  | # Make the script executable and execute it.
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|  | --chmod 0755 $perlChecker | ||
|  | --exec $perlChecker | ||
|  | 
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|  | # Source the resulting temporary file and look for a variable being set.
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|  | --source $resultFile | ||
|  | 
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|  | if (!$dbidbd) { | ||
|  |     --skip Test needs Perl modules DBI and DBD::mysql | ||
|  | }  | ||
|  | 
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|  | # Clean up
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|  | --remove_file $resultFile | ||
|  | 
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|  | --enable_query_log | ||
|  | --enable_result_log | ||
|  | --enable_warnings | ||
|  | 
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