nix-gh/tests/parallel.sh

source common.sh

clearStore

outPath=$($nixbuild -j10000 parallel.nix)

echo "output path is $outPath"

text=$(cat "$outPath")
if test "$text" != "abacade"; then exit 1; fi

if test "$(cat $SHARED.cur)" != 0; then exit 1; fi
if test "$(cat $SHARED.max)" != 3; then exit 1; fi
* Make it easy to run individual tests from the command line. 2006-03-01 13:15:33 +01:00			`source common.sh`

* Clean up some tests (use nix-build where appropriate). 2009-03-18 14:15:55 +01:00			`clearStore`
* A test to verify that Nix executes build jobs in parallel, if possible. This test fails right now because this hasn't been implemented right now. Yes, I'm doing Test-Driven Development! ;-) 2004-05-04 19:04:17 +02:00
* Acquire the locks on the output paths before trying to run the build hook. This fixes a problem with log files being partially or completely filled with 0's because another nix-store process truncates the log file. It should also be more efficient. 2009-03-18 15:48:42 +01:00			`outPath=$($nixbuild -j10000 parallel.nix)`
* A test to verify that Nix executes build jobs in parallel, if possible. This test fails right now because this hasn't been implemented right now. Yes, I'm doing Test-Driven Development! ;-) 2004-05-04 19:04:17 +02:00
			`echo "output path is $outPath"`

			`text=$(cat "$outPath")`
* True parallel builds. Nix can now run as many build jobs in parallel as possible (similar to GNU Make's `-j' switch). This is useful on SMP systems, but it is especially useful for doing builds on multiple machines. The idea is that a large derivation is initiated on one master machine, which then distributes sub-derivations to any number of slave machines. This should not happen synchronously or in lock-step, so the master must be capable of dealing with multiple parallel build jobs. We now have the infrastructure to support this. TODO: substitutes are currently broken. 2004-05-11 20:05:44 +02:00			`if test "$text" != "abacade"; then exit 1; fi`
* A test to verify that Nix executes build jobs in parallel, if possible. This test fails right now because this hasn't been implemented right now. Yes, I'm doing Test-Driven Development! ;-) 2004-05-04 19:04:17 +02:00
			`if test "$(cat $SHARED.cur)" != 0; then exit 1; fi`
			`if test "$(cat $SHARED.max)" != 3; then exit 1; fi`