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