)]}'
{
  "commit": "6966efb0f6ff0f80b1a6bc5ee6ac2f343ecf3523",
  "tree": "f094107d1e05a2a0648ca1db3bfd66ba0e5a97bb",
  "parents": [
    "2d9fd62c6572e324ae893e2c5bc2f054b7f70fa4"
  ],
  "author": {
    "name": "RJ Ascani",
    "email": "rjascani@google.com",
    "time": "Mon Oct 19 16:50:11 2020 -0700"
  },
  "committer": {
    "name": "Commit Bot",
    "email": "commit-bot@chromium.org",
    "time": "Fri Dec 11 17:17:17 2020 +0000"
  },
  "message": "Restat build.ninja after gen\n\nAs of version 1.8, ninja caches mtimes in the .ninja_log file and will\nnot restat a file if it has an entry in the .ninja_log. This becomes\nproblematic for generator files such as build.ninja. In a scenario where\nthe .ninja_log has an entry for build.ninja (ie, after ninja has had to\ntrigger a re-gen) and a manual run of of `gn gen` has updated the\nbuild.ninja file, a subsequent invocation of ninja will trigger yet\nanother re-gen of build.ninja.\n\nThis can be reproduced like this:\n\n  # Initial build\n  gn gen out \u0026\u0026 ninja -C out\n  # Trigger ninja re-gen so there\u0027s a build.ninja log entry\n  touch BUILD.gn \u0026\u0026 ninja -C out\n  # Manual re-gen\n  gn gen out\n  # The following command will re-gen again before building\n  ninja -C out\n\nTo work around this, the recommended approach from ninja is to use the\nninja restat tool to get ninja to update the mtime in the .ninja_log.\nThis CL does that by attempting to invoke `ninja -t restat build.ninja`\nimmediately after the build.ninja is generated by `gn gen`. Because this\ntool was only introduced in 1.10, the usage is gated on having a ninja\nbinary of at least that version. The ninja binary can be provided via\nthe --ninja-executable switch.\n\nBug: 136\nChange-Id: If40391aa13e6ef71c4e8ab26aff57d66a8137b8e\nReviewed-on: https://gn-review.googlesource.com/c/gn/+/10400\nCommit-Queue: RJ Ascani \u003crjascani@google.com\u003e\nReviewed-by: Brett Wilson \u003cbrettw@chromium.org\u003e\n",
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