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authorLibravatar Johannes Schindelin <johannes.schindelin@gmx.de>2009-02-04 00:26:12 +0100
committerLibravatar Junio C Hamano <gitster@pobox.com>2009-02-03 22:01:09 -0800
commit44138559e8b7c89768a2450220b831847059311c (patch)
tree2ba465a4b1fe144d5c3a7057bdb856b35f0543a7 /t/t2003-checkout-cache-mkdir.sh
parentValgrind support: check for more than just programming errors (diff)
downloadtgif-44138559e8b7c89768a2450220b831847059311c.tar.xz
test-lib.sh: optionally output to test-results/$TEST.out, too
When tests are run in parallel and a few tests fail, it does not help that the output of the terminal is totally confusing, as you rarely know which test which line came from. So introduce the option '--tee' which triggers that the output of the tests will be written to t/test-results/$TEST.out in addition to the terminal, where $TEST is the basename of the script. Unfortunately, there seems to be no way to redirect a given file descriptor to a specified subprocess in POSIX shell, only redirection to a file is supported via 'exec > $FILE'. At least with bash, one might think that 'exec >($COMMAND)' would work as intended, but it does not. The common way to work around the lack of proper tools support is to work with named pipes, alas, one of our most beloved platforms does not really support named pipes. Besides, we would need a pipe for every script, as the whole point of this patch is to allow parallel execution. Therefore, we handle the redirection in the following way: when '--tee' was passed to the test script, the variable GIT_TEST_TEE_STARTED is set (to avoid triggering that code path again) and the script is started _again_, in a subshell, redirected to the command "tee". Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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