enhancement(dev): Add dedicated helper tool (#15833)

* Add dedicated dev tool

* refactor

* Apply suggestions from code review

Co-authored-by: neuronull <kyle.criddle@datadoghq.com>

* address

* add env management commands

* add test command

* refactor with once_cell

* refactor sub-process handling

* improve error messages

* handle case of first time user

* reduce boilerplate with macros

* address

* Apply suggestions from code review

Co-authored-by: Stephen Wakely <stephen@lisp.space>

* address

* add top-level test command

* add to CI

* Apply suggestions from code review

Co-authored-by: Stephen Wakely <stephen@lisp.space>

* final update

* Fix clippy lints

* Convert extensions to `process::Command` into an extension trait

* Add `infer_subcommands` option and unabbreviate `int` subcommand

* address

* Flatten out the `cli.rs` files

* Inline the used cfg options

* Drop unused config bits

* Turn on `clippy::pedantic` and fix issues

* Pass command args owned to allow for direct use

* Eliminate some silent error fallbacks

* Simplify logic of `integration show`

* Drop some common parameters in testing functions

* Fix new clippy lints

Co-authored-by: Ofek Lev <ofekmeister@gmail.com>
Co-authored-by: neuronull <kyle.criddle@datadoghq.com>
Co-authored-by: Stephen Wakely <stephen@lisp.space>

.github/workflows/actions/install-vdev/action.yml

@@ -0,0 +1,51 @@
+name: Install vdev
+
+inputs:
+  token:
+    required: true
+
+runs:
+  using: composite
+
+  steps:
+  # default 2.x fails
+  - if: runner.os == 'Windows'
+    uses: ruby/setup-ruby@v1
+    with:
+      ruby-version: '3.1'
+
+  - name: Wait for build
+    uses: lewagon/wait-on-check-action@v1.2.0
+    with:
+      repo-token: ${{ inputs.token }}
+      check-name: Build executable for ${{ runner.os }}
+      ref: ${{ github.sha }}
+      wait-interval: 20
+
+  - name: Try downloading current artifact
+    uses: dawidd6/action-download-artifact@v2
+    with:
+      github_token: ${{ inputs.token }}
+      workflow: build-vdev.yml
+      branch: ${{ github.ref_name }}
+      name: vdev-${{ runner.os }}
+      path: vdev/bin
+
+  - if: github.event_name == 'pull_request' && failure()
+    name: Download latest artifact
+    uses: dawidd6/action-download-artifact@v2
+    with:
+      github_token: ${{ inputs.token }}
+      workflow: build-vdev.yml
+      branch: master
+      name: vdev-${{ runner.os }}
+      path: vdev/bin
+
+  - name: Add binary to PATH
+    run: mv vdev/bin/* "$HOME/.cargo/bin"
+    shell: bash
+
+  - if: runner.os != 'Windows'
+    name: Make binary executable
+    run: chmod +x "$HOME/.cargo/bin/vdev"
+    shell: bash

.github/workflows/build-vdev.yml

@@ -0,0 +1,43 @@
+name: Build vdev
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+    paths:
+      - "vdev/**/*"
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.number || github.sha }}
+  cancel-in-progress: true
+
+jobs:
+  exe:
+    # Name must match runner.os https://docs.github.com/en/actions/learn-github-actions/contexts#runner-context
+    name: Build executable for ${{ startsWith(matrix.os, 'macos-') && 'macOS' || startsWith(matrix.os, 'windows-') && 'Windows' || 'Linux' }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Build release binary
+      run: |
+        cd vdev
+        cargo build --release
+
+    - if: runner.os != 'Windows'
+      name: Strip binary
+      run: strip vdev/target/release/vdev
+
+    - uses: actions/upload-artifact@v3
+      with:
+        name: vdev-${{ runner.os }}
+        path: vdev/target/release/${{ runner.os == 'Windows' && 'vdev.exe' || 'vdev' }}
+        if-no-files-found: error