)]}'
{
  "commit": "8f9fb9570efceb1ff2376289628cf03b8e4bea76",
  "tree": "f50b9d0a6c83a44518e798d6394eda7d7a7ba1de",
  "parents": [
    "feb1649049e777b11ccddad703e8e36e7821d529"
  ],
  "author": {
    "name": "Maxim Dounin",
    "email": "mdounin@mdounin.ru",
    "time": "Thu Jun 26 02:27:11 2014 +0400"
  },
  "committer": {
    "name": "Maxim Dounin",
    "email": "mdounin@mdounin.ru",
    "time": "Thu Jun 26 02:27:11 2014 +0400"
  },
  "message": "Entity tags: explicit flag to skip not modified filter.\n\nPreviously, last_modified_time was tested against -1 to check if the\nnot modified filter should be skipped.  Notably, this prevented nginx\nfrom additional If-Modified-Since (et al.) checks on proxied responses.\nSuch behaviour is suboptimal in some cases though, as checks are always\nskipped on responses from a cache with ETag only (without Last-Modified),\nresulting in If-None-Match being ignored in such cases.  Additionally,\nit was not possible to return 412 from the If-Unmodified-Since if last\nmodification time was not known for some reason.\n\nThis change introduces explicit r-\u003edisable_not_modified flag instead,\nwhich is set by ngx_http_upstream_process_headers().\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "357d085fde76ac7df9e74374653a35bc5a4a9bac",
      "old_mode": 33188,
      "old_path": "src/http/modules/ngx_http_not_modified_filter_module.c",
      "new_id": "acc94ded31ad8bf0a409b0b1134675f00061925c",
      "new_mode": 33188,
      "new_path": "src/http/modules/ngx_http_not_modified_filter_module.c"
    },
    {
      "type": "modify",
      "old_id": "0d3a799159a47ca540fcbdad4b9a88d84569267b",
      "old_mode": 33188,
      "old_path": "src/http/ngx_http_request.h",
      "new_id": "f6ea6fb56e77c43dcf36a23b3dd6fe94abe17642",
      "new_mode": 33188,
      "new_path": "src/http/ngx_http_request.h"
    },
    {
      "type": "modify",
      "old_id": "8922dbc8b23bf6f77862b42cc22b0c6e8b3549b3",
      "old_mode": 33188,
      "old_path": "src/http/ngx_http_upstream.c",
      "new_id": "5b55b263bd7734fe1995f16ad85986b25604b5b1",
      "new_mode": 33188,
      "new_path": "src/http/ngx_http_upstream.c"
    }
  ]
}