.github/workflows/host_tools.yml

# Copyright 2022 The IREE Authors
#
# Licensed under the Apache License v2.0 with LLVM Exceptions.
# See https://llvm.org/LICENSE.txt for license information.
# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception

on:
  workflow_call:
    inputs:
      host-binary-root:
        required: true
        type: string
      enable-assertions:
        required: false
        type: string  # Thanks CMake and Bash for not having proper booleans
        default: "OFF"
    outputs:
      host-binary-root:
        # Pass through the root directory as an output, so it's available to
        # dependent jobs.
        # For some incomprehensible reason, even though the inputs context is
        # available here, if you use it directly this will just be an empty
        # string. Not an error, just a silent failure. So we have pass the input
        # down to a job and then make it an output of that job and then make it
        # an output of this. Of course, the only reason we need to pass this
        # around at all is because we can't have variables or directly access
        # the inputs to this workflow in dependen workflows. Because why have a
        # simple programming model when you could have one that is just the
        # minimal union of use cases you could come up with.
        value: ${{ jobs.host_tools.outputs.host-binary-root }}

jobs:
  host_tools:
    runs-on:
      # self-hosted has to be listed first. See
      # https://docs.github.com/en/actions/hosting-your-own-runners/using-self-hosted-runners-in-a-workflow
      - self-hosted
      # Have to do a weird hack to get a pseudo-ternary operator. See
      # https://github.com/actions/runner/issues/409. Also note that
      # `github.event_name` for workflow_call is the name of the calling event,
      # which is poorly documented, but useful for us here. See
      # https://github.com/github/docs/issues/16515
      - runner-group=${{ github.event_name == 'pull_request' && 'presubmit' || 'postsubmit' }}
      - cpu
      - os-family=Linux
    env:
      HOST_BINARY_ROOT: ${{ inputs.host-binary-root }}
      HOST_BINARY_ARCHIVE: ${{ inputs.host-binary-root }}.tar
    outputs:
      host-binary-root: ${{ inputs.host-binary-root }}
    steps:
      - name: "Checking out repository"
        uses: actions/checkout@7884fcad6b5d53d10323aee724dc68d8b9096a2e  # v2
        with:
          submodules: true
      - name: "Building host tools"
        run: |
          ./build_tools/github_actions/docker_run.sh \
            --env "INSTALL_DIR=${HOST_BINARY_ROOT}" \
            gcr.io/iree-oss/base@sha256:9d742e01507c292def852cbfebfae71412cff94df0ab2619f61f9a5a2a98f651 \
            ./build_tools/cmake/build_host_tools.sh
      # Using a tar archive is necessary to preserve file permissions. See
      # https://github.com/actions/upload-artifact#maintaining-file-permissions-and-case-sensitive-files
      # The upload action already does its own gzip compression, so it's likely
      # unnecessary (and perhaps harmful) to do our own, though that hasn't been
      # investigated.
      - name: "Creating host tools archive"
        run: tar -cvf "${HOST_BINARY_ARCHIVE}" "${HOST_BINARY_ROOT}"
      - uses: actions/upload-artifact@3cea5372237819ed00197afe530f5a7ea3e805c8  # v3.1.0
        with:
          name: "${{ env.HOST_BINARY_ARCHIVE }}"
          path: "${{ env.HOST_BINARY_ARCHIVE }}"