commit 023907a6fe4e60dec1c5bb0e8ddcd5880e1e00fd
author Sam Estep <sestep@fb.com> Mon Jun 21 11:26:32 2021 -0700
committer Facebook GitHub Bot <facebook-github-bot@users.noreply.github.com> Mon Jun 21 11:27:49 2021 -0700
tree 035b0fa81e04dfe111a45265210776e74a2d4292
parent 27e34f731ac55e2f492af7a0db812e7028bb3a5e

Allow Docker build on macOS (#60375)

Summary:
This PR allows developers using macOS to build Docker images locally. The `basename $(mktemp -u)` part was suggested by seemethere; I modified it slightly to appease ShellCheck and because [Docker doesn't allow uppercase characters in tags](https://stackoverflow.com/a/54291205).

Pull Request resolved: https://github.com/pytorch/pytorch/pull/60375

Test Plan:
On a Mac:
```
cd .circleci/docker
./build.sh pytorch-linux-xenial-py3.6-gcc5.4
```

Reviewed By: driazati

Differential Revision: D29267025

Pulled By: samestep

fbshipit-source-id: ba27d2fb108f573a50db069cf9ddea0414ed6074

.circleci/docker/build.sh

diff --git a/.circleci/docker/build.sh b/.circleci/docker/build.sh
index b107225..df41b93 100755
--- a/.circleci/docker/build.sh
+++ b/.circleci/docker/build.sh
@@ -320,7 +320,7 @@
   JENKINS_GID=$(id -g jenkins)
 fi
 
-tmp_tag="tmp-$(cat /dev/urandom | tr -dc 'a-z' | head -c 32)"
+tmp_tag=$(basename "$(mktemp -u)" | tr '[:upper:]' '[:lower:]')
 
 # Build image
 # TODO: build-arg THRIFT is not turned on for any image, remove it once we confirm