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| author | Ben Gamari <bgamari.foss@gmail.com> | 2018-07-06 10:57:55 -0400 |
|---|---|---|
| committer | Ben Gamari <ben@smart-cactus.org> | 2018-07-06 14:08:37 -0400 |
| commit | de95bf40ee0af0e7da4cb6cc4e0ad33694234bb9 (patch) | |
| tree | 13ee71ca22f5a3610900ad7ce49f9fa635e2c6b3 /mk/detect-cpu-count.sh | |
| parent | 8c628ad9b9241dcf4ea087ca9efa5f0ca9632aa5 (diff) | |
| download | haskell-de95bf40ee0af0e7da4cb6cc4e0ad33694234bb9.tar.gz | |
circleci: Detect core count
Test Plan: Try `./validate`, CircleCI build; make sure core count
detection works in both cases.
Reviewers: alpmestan
Reviewed By: alpmestan
Subscribers: rwbarton, thomie, carter
GHC Trac Issues: #14470
Differential Revision: https://phabricator.haskell.org/D4897
Diffstat (limited to 'mk/detect-cpu-count.sh')
| -rwxr-xr-x | mk/detect-cpu-count.sh | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/mk/detect-cpu-count.sh b/mk/detect-cpu-count.sh new file mode 100755 index 0000000000..abc47387d1 --- /dev/null +++ b/mk/detect-cpu-count.sh @@ -0,0 +1,26 @@ +#!/bin/sh + +detect_cpu_count () { + if [ "$CPUS" = "" ]; then + # Windows standard environment variable + CPUS="$NUMBER_OF_PROCESSORS" + fi + + if [ "$CPUS" = "" ]; then + # Linux + CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null` + fi + + if [ "$CPUS" = "" ]; then + # FreeBSD + CPUS=`getconf NPROCESSORS_ONLN 2>/dev/null` + fi + + if [ "$CPUS" = "" ]; then + # nothing helped + CPUS="1" + fi +} + +detect_cpu_count +echo "$CPUS" |