你可以在 [環境變數](environment-variables.md#path-environment-variable){.internal-link target=_blank} 部分了解更多關於 `PATH` 環境變數的內容。

///

啟用虛擬環境會將其路徑 `.venv/bin`（在 Linux 和 macOS 上）或 `.venv\Scripts`（在 Windows 上）加入到 `PATH` 環境變數中。

假設在啟用環境之前，`PATH` 變數看起來像這樣：

//// tab | Linux, macOS

```plaintext
/usr/bin:/bin:/usr/sbin:/sbin
```

這意味著系統會在以下目錄中查找程式：

* `/usr/bin`
* `/bin`
* `/usr/sbin`
* `/sbin`

你可以在 [环境变量](environment-variables.md#path-environment-variable){.internal-link target=_blank} 部分了解更多关于 `PATH` 环境变量的内容。

///

激活虚拟环境会将其路径 `.venv/bin`（在 Linux 和 macOS 上）或 `.venv\Scripts`（在 Windows 上）添加到 `PATH` 环境变量中。

假设在激活环境之前，`PATH` 变量看起来像这样：

//// tab | Linux, macOS

```plaintext
/usr/bin:/bin:/usr/sbin:/sbin
```

这意味着系统会在以下目录中查找程序：

* `/usr/bin`
* `/bin`
* `/usr/sbin`
* `/sbin`

  - [Linux GPU](https://storage.googleapis.com/tensorflow-nightly/github/tensorflow/lib_package/libtensorflow-gpu-linux-x86_64.tar.gz)

    mapOf(
        StageName.PULL_REQUEST_FEEDBACK to listOf(Os.LINUX, Os.WINDOWS),
        StageName.READY_FOR_NIGHTLY to listOf(Os.LINUX, Os.WINDOWS, Os.MACOS),
        StageName.READY_FOR_RELEASE to listOf(Os.LINUX, Os.WINDOWS, Os.MACOS),
    )

class StageTriggers(
    model: CIBuildModel,
    stage: Stage,
    prevStage: Stage?,
    stageProject: StageProject,
) {

#    build. This should also match the system you're using--you cannot build
#    the TF MacOS package from Linux.
#      Ex. linux_x86        -- x86_64 Linux platform
#      Ex. linux_x86_cuda   -- x86_64 Linux platform, with Nvidia CUDA support
#      Ex. macos_arm64      -- arm64 MacOS platform
# 3. Add modifiers. Some modifiers for local execution are:
#      Ex. disk_cache -- Use a local cache

env:
  UV_SYSTEM_PYTHON: 1

jobs:
  test:
    strategy:
      matrix:
        os: [ windows-latest, macos-latest ]
        python-version: [ "3.14" ]
        include:
          - os: ubuntu-latest
            python-version: "3.9"
            coverage: coverage
          - os: macos-latest
            python-version: "3.10"
            coverage: coverage
          - os: windows-latest

# Note that "_push" cache configs write to GCS buckets and require
# authentication. If you are not a Googler, source "public_cache" to enable the
# public read-only cache.
# The cache configs are different for MacOS and Linux
if [[ $(uname -s) == "Darwin" ]]; then
  TFCI_BAZEL_COMMON_ARGS="$TFCI_BAZEL_COMMON_ARGS --config tf_public_macos_cache_push"
else
  TFCI_BAZEL_COMMON_ARGS="$TFCI_BAZEL_COMMON_ARGS --config tf_public_cache_push"

  postgres:
    strategy:
      matrix:
        dbversion: ['postgres:latest', 'postgres:15', 'postgres:14', 'postgres:13']
        go: ['1.24', '1.25']
        platform: [ubuntu-latest] # can not run in macOS and Windows
    runs-on: ${{ matrix.platform }}

    services:
      postgres:
        image: ${{ matrix.dbversion }}
        env:
          POSTGRES_PASSWORD: gorm
          POSTGRES_USER: gorm

TFCI_ARTIFACT_STAGING_GCS_URI="gs://tensorflow-ci-staging/staging/nightly/$(git rev-parse HEAD)/"

# 2. The internal version numbers get changed
TFCI_NIGHTLY_UPDATE_VERSION_ENABLE=1

# 3. Push results to public build cache (unique cache for MacOS)
if [[ $(uname -s) == "Darwin" ]]; then
  TFCI_BAZEL_COMMON_ARGS="$TFCI_BAZEL_COMMON_ARGS --config tf_public_macos_cache_push"
else
  TFCI_BAZEL_COMMON_ARGS="$TFCI_BAZEL_COMMON_ARGS --config tf_public_cache_push"

# ==============================================================================
#
# Changes the behavior in pycpp.sh from "run all tests" to "verify that all
# tests can compile." Used in some CI jobs (macOS and Linux Arm64) where test
# execution is too expensive.
TFCI_PYCPP_SWAP_TO_BUILD_ENABLE=1