tests/test-hgweb-annotate-whitespace.t

phases: invalidate the phases set less often on retract boundary

We already have the information to update the phase set, so we do so directly
instead of invalidating the cache.

This show a sizeable speedup in our `perf::unbundle` benchmark on the
many-draft mozilla-try repository.

### data-env-vars.name            = mozilla-try-2023-03-22-zstd-sparse-revlog
  # benchmark.name                = hg.perf.perf-unbundle
  # bin-env-vars.hg.flavor        = no-rust
  # bin-env-vars.hg.py-re2-module = default
  # benchmark.variants.issue6528  = disabled

  # benchmark.variants.revs = last-10
before: 2.055259 seconds
after:  1.887064 seconds (-8.18%)
  # benchmark.variants.revs = last-100
before: 2.409239 seconds
after:  2.222429 seconds (-7.75%)
  # benchmark.variants.revs = last-1000
before: 3.945648 seconds
after:  3.762480 seconds (-4.64%)

#require serve

Create a repo with whitespace only changes

  $ hg init repo-with-whitespace
  $ cd repo-with-whitespace
  $ cat > foo << EOF
  > line 0
  > line 1
  > line 2
  > line 3
  > EOF
  $ hg -q commit -A -m 'commit 0'
  $ cat > foo << EOF
  > line 0
  > line 1 modified by 1
  > line 2
  > line 3
  > EOF
  $ hg commit -m 'commit 1'
  $ cat > foo << EOF
  > line 0
  > line 1 modified by 1
  >     line 2
  > line 3
  > EOF
  $ hg commit -m 'commit 2 (leading whitespace on line 2)'
  $ cat > foo << EOF
  > line 0
  > line 1 modified by 1
  >     line 2
  > EOF
Need to use printf to avoid check-code complaining about trailing whitespace.
  $ printf 'line 3    \n' >> foo
  $ hg commit -m 'commit 3 (trailing whitespace on line 3)'
  $ cat > foo << EOF
  > line  0
  > line 1 modified by 1
  >     line 2
  > EOF
  $ printf 'line 3    \n' >> foo
  $ hg commit -m 'commit 4 (intra whitespace on line 0)'
  $ cat > foo << EOF
  > line  0
  > 
  > line 1 modified by 1
  >     line 2
  > EOF
  $ printf 'line 3    \n' >> foo
  $ hg commit -m 'commit 5 (add blank line between line 0 and 1)'
  $ cat > foo << EOF
  > line  0
  > 
  > 
  > line 1 modified by 1
  >     line 2
  > EOF
  $ printf 'line 3    \n' >> foo
  $ hg commit -m 'commit 6 (add another blank line between line 0 and 1)'

  $ hg log -G -T '{rev}:{node|short} {desc}'
  @  6:9d1b2c7db017 commit 6 (add another blank line between line 0 and 1)
  |
  o  5:400ef1d40470 commit 5 (add blank line between line 0 and 1)
  |
  o  4:08adbe269f24 commit 4 (intra whitespace on line 0)
  |
  o  3:dcb62cfbfc9b commit 3 (trailing whitespace on line 3)
  |
  o  2:6bdb694e7b8c commit 2 (leading whitespace on line 2)
  |
  o  1:23e1e37387dc commit 1
  |
  o  0:b9c578134d72 commit 0
  

  $ hg serve -p $HGPORT -d --pid-file hg.pid
  $ cat hg.pid >> $DAEMON_PIDS
  $ hg serve --config annotate.ignorews=true -p $HGPORT1 -d --pid-file hg.pid
  $ cat hg.pid >> $DAEMON_PIDS
  $ cd ..

Annotate works

  $ get-with-headers.py --json $LOCALIP:$HGPORT 'json-annotate/9d1b2c7db017/foo'
  200 Script output follows
  
  {
    "abspath": "foo",
    "annotate": [
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 4 (intra whitespace on line 0)",
        "line": "line  0\n",
        "lineno": 1,
        "node": "08adbe269f24cf22d975eadeec16790c5b22f558",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 1
      },
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 5 (add blank line between line 0 and 1)",
        "line": "\n",
        "lineno": 2,
        "node": "400ef1d404706cfb48afd2b78ce6addf641ced25",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 2
      },
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 6 (add another blank line between line 0 and 1)",
        "line": "\n",
        "lineno": 3,
        "node": "9d1b2c7db0175870a950f8c48c9c4ead1058f2c5",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 3
      },
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 1",
        "line": "line 1 modified by 1\n",
        "lineno": 4,
        "node": "23e1e37387dcfca4c0ed0cc568d1e4b9bfed241a",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 2
      },
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 2 (leading whitespace on line 2)",
        "line": "    line 2\n",
        "lineno": 5,
        "node": "6bdb694e7b8cebb68d5b6b27b4bcc2a49d62c602",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 3
      },
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 3 (trailing whitespace on line 3)",
        "line": "line 3    \n",
        "lineno": 6,
        "node": "dcb62cfbfc9b3ab995a5cbbaff6e1971c3e4f865",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 4
      }
    ],
    "author": "test",
    "children": [],
    "date": [
      0.0,
      0
    ],
    "desc": "commit 6 (add another blank line between line 0 and 1)",
    "node": "9d1b2c7db0175870a950f8c48c9c4ead1058f2c5",
    "parents": [
      "400ef1d404706cfb48afd2b78ce6addf641ced25"
    ],
    "permissions": ""
  }

annotate.ignorews=1 config option is honored

  $ get-with-headers.py --json $LOCALIP:$HGPORT1 'json-annotate/9d1b2c7db017/foo'
  200 Script output follows
  
  {
    "abspath": "foo",
    "annotate": [
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 0",
        "line": "line  0\n",
        "lineno": 1,
        "node": "b9c578134d72b3a9d26afde8ddd76c0a93c5adbc",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 1
      },
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 5 (add blank line between line 0 and 1)",
        "line": "\n",
        "lineno": 2,
        "node": "400ef1d404706cfb48afd2b78ce6addf641ced25",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 2
      },
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 6 (add another blank line between line 0 and 1)",
        "line": "\n",
        "lineno": 3,
        "node": "9d1b2c7db0175870a950f8c48c9c4ead1058f2c5",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 3
      },
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 1",
        "line": "line 1 modified by 1\n",
        "lineno": 4,
        "node": "23e1e37387dcfca4c0ed0cc568d1e4b9bfed241a",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 2
      },
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 0",
        "line": "    line 2\n",
        "lineno": 5,
        "node": "b9c578134d72b3a9d26afde8ddd76c0a93c5adbc",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 3
      },
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 0",
        "line": "line 3    \n",
        "lineno": 6,
        "node": "b9c578134d72b3a9d26afde8ddd76c0a93c5adbc",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 4
      }
    ],
    "author": "test",
    "children": [],
    "date": [
      0.0,
      0
    ],
    "desc": "commit 6 (add another blank line between line 0 and 1)",
    "node": "9d1b2c7db0175870a950f8c48c9c4ead1058f2c5",
    "parents": [
      "400ef1d404706cfb48afd2b78ce6addf641ced25"
    ],
    "permissions": ""
  }

ignorews=1 query string argument enables whitespace skipping

  $ get-with-headers.py --json $LOCALIP:$HGPORT 'json-annotate/9d1b2c7db017/foo?ignorews=1'
  200 Script output follows
  
  {
    "abspath": "foo",
    "annotate": [
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 0",
        "line": "line  0\n",
        "lineno": 1,
        "node": "b9c578134d72b3a9d26afde8ddd76c0a93c5adbc",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 1
      },
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 5 (add blank line between line 0 and 1)",
        "line": "\n",
        "lineno": 2,
        "node": "400ef1d404706cfb48afd2b78ce6addf641ced25",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 2
      },
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 6 (add another blank line between line 0 and 1)",
        "line": "\n",
        "lineno": 3,
        "node": "9d1b2c7db0175870a950f8c48c9c4ead1058f2c5",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 3
      },
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 1",
        "line": "line 1 modified by 1\n",
        "lineno": 4,
        "node": "23e1e37387dcfca4c0ed0cc568d1e4b9bfed241a",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 2
      },
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 0",
        "line": "    line 2\n",
        "lineno": 5,
        "node": "b9c578134d72b3a9d26afde8ddd76c0a93c5adbc",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 3
      },
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 0",
        "line": "line 3    \n",
        "lineno": 6,
        "node": "b9c578134d72b3a9d26afde8ddd76c0a93c5adbc",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 4
      }
    ],
    "author": "test",
    "children": [],
    "date": [
      0.0,
      0
    ],
    "desc": "commit 6 (add another blank line between line 0 and 1)",
    "node": "9d1b2c7db0175870a950f8c48c9c4ead1058f2c5",
    "parents": [
      "400ef1d404706cfb48afd2b78ce6addf641ced25"
    ],
    "permissions": ""
  }

ignorews=0 query string argument disables when config defaults to enabled

  $ get-with-headers.py --json $LOCALIP:$HGPORT1 'json-annotate/9d1b2c7db017/foo?ignorews=0'
  200 Script output follows
  
  {
    "abspath": "foo",
    "annotate": [
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 4 (intra whitespace on line 0)",
        "line": "line  0\n",
        "lineno": 1,
        "node": "08adbe269f24cf22d975eadeec16790c5b22f558",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 1
      },
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 5 (add blank line between line 0 and 1)",
        "line": "\n",
        "lineno": 2,
        "node": "400ef1d404706cfb48afd2b78ce6addf641ced25",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 2
      },
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 6 (add another blank line between line 0 and 1)",
        "line": "\n",
        "lineno": 3,
        "node": "9d1b2c7db0175870a950f8c48c9c4ead1058f2c5",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 3
      },
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 1",
        "line": "line 1 modified by 1\n",
        "lineno": 4,
        "node": "23e1e37387dcfca4c0ed0cc568d1e4b9bfed241a",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 2
      },
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 2 (leading whitespace on line 2)",
        "line": "    line 2\n",
        "lineno": 5,
        "node": "6bdb694e7b8cebb68d5b6b27b4bcc2a49d62c602",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 3
      },
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 3 (trailing whitespace on line 3)",
        "line": "line 3    \n",
        "lineno": 6,
        "node": "dcb62cfbfc9b3ab995a5cbbaff6e1971c3e4f865",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 4
      }
    ],
    "author": "test",
    "children": [],
    "date": [
      0.0,
      0
    ],
    "desc": "commit 6 (add another blank line between line 0 and 1)",
    "node": "9d1b2c7db0175870a950f8c48c9c4ead1058f2c5",
    "parents": [
      "400ef1d404706cfb48afd2b78ce6addf641ced25"
    ],
    "permissions": ""
  }

ignorewsamount=1 query string enables whitespace amount skipping

  $ get-with-headers.py --json $LOCALIP:$HGPORT 'json-annotate/9d1b2c7db017/foo?ignorewsamount=1'
  200 Script output follows
  
  {
    "abspath": "foo",
    "annotate": [
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 0",
        "line": "line  0\n",
        "lineno": 1,
        "node": "b9c578134d72b3a9d26afde8ddd76c0a93c5adbc",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 1
      },
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 5 (add blank line between line 0 and 1)",
        "line": "\n",
        "lineno": 2,
        "node": "400ef1d404706cfb48afd2b78ce6addf641ced25",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 2
      },
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 6 (add another blank line between line 0 and 1)",
        "line": "\n",
        "lineno": 3,
        "node": "9d1b2c7db0175870a950f8c48c9c4ead1058f2c5",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 3
      },
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 1",
        "line": "line 1 modified by 1\n",
        "lineno": 4,
        "node": "23e1e37387dcfca4c0ed0cc568d1e4b9bfed241a",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 2
      },
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 2 (leading whitespace on line 2)",
        "line": "    line 2\n",
        "lineno": 5,
        "node": "6bdb694e7b8cebb68d5b6b27b4bcc2a49d62c602",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 3
      },
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 0",
        "line": "line 3    \n",
        "lineno": 6,
        "node": "b9c578134d72b3a9d26afde8ddd76c0a93c5adbc",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 4
      }
    ],
    "author": "test",
    "children": [],
    "date": [
      0.0,
      0
    ],
    "desc": "commit 6 (add another blank line between line 0 and 1)",
    "node": "9d1b2c7db0175870a950f8c48c9c4ead1058f2c5",
    "parents": [
      "400ef1d404706cfb48afd2b78ce6addf641ced25"
    ],
    "permissions": ""
  }

ignorewseol=1 query string enables whitespace end of line skipping

  $ get-with-headers.py --json $LOCALIP:$HGPORT 'json-annotate/9d1b2c7db017/foo?ignorewseol=1'
  200 Script output follows
  
  {
    "abspath": "foo",
    "annotate": [
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 4 (intra whitespace on line 0)",
        "line": "line  0\n",
        "lineno": 1,
        "node": "08adbe269f24cf22d975eadeec16790c5b22f558",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 1
      },
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 5 (add blank line between line 0 and 1)",
        "line": "\n",
        "lineno": 2,
        "node": "400ef1d404706cfb48afd2b78ce6addf641ced25",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 2
      },
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 6 (add another blank line between line 0 and 1)",
        "line": "\n",
        "lineno": 3,
        "node": "9d1b2c7db0175870a950f8c48c9c4ead1058f2c5",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 3
      },
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 1",
        "line": "line 1 modified by 1\n",
        "lineno": 4,
        "node": "23e1e37387dcfca4c0ed0cc568d1e4b9bfed241a",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 2
      },
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 2 (leading whitespace on line 2)",
        "line": "    line 2\n",
        "lineno": 5,
        "node": "6bdb694e7b8cebb68d5b6b27b4bcc2a49d62c602",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 3
      },
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 0",
        "line": "line 3    \n",
        "lineno": 6,
        "node": "b9c578134d72b3a9d26afde8ddd76c0a93c5adbc",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 4
      }
    ],
    "author": "test",
    "children": [],
    "date": [
      0.0,
      0
    ],
    "desc": "commit 6 (add another blank line between line 0 and 1)",
    "node": "9d1b2c7db0175870a950f8c48c9c4ead1058f2c5",
    "parents": [
      "400ef1d404706cfb48afd2b78ce6addf641ced25"
    ],
    "permissions": ""
  }

ignoreblanklines=1 query string enables whitespace blank line skipping

  $ get-with-headers.py --json $LOCALIP:$HGPORT 'json-annotate/9d1b2c7db017/foo?ignoreblanklines=1'
  200 Script output follows
  
  {
    "abspath": "foo",
    "annotate": [
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 4 (intra whitespace on line 0)",
        "line": "line  0\n",
        "lineno": 1,
        "node": "08adbe269f24cf22d975eadeec16790c5b22f558",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 1
      },
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 5 (add blank line between line 0 and 1)",
        "line": "\n",
        "lineno": 2,
        "node": "400ef1d404706cfb48afd2b78ce6addf641ced25",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 2
      },
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 6 (add another blank line between line 0 and 1)",
        "line": "\n",
        "lineno": 3,
        "node": "9d1b2c7db0175870a950f8c48c9c4ead1058f2c5",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 3
      },
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 1",
        "line": "line 1 modified by 1\n",
        "lineno": 4,
        "node": "23e1e37387dcfca4c0ed0cc568d1e4b9bfed241a",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 2
      },
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 2 (leading whitespace on line 2)",
        "line": "    line 2\n",
        "lineno": 5,
        "node": "6bdb694e7b8cebb68d5b6b27b4bcc2a49d62c602",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 3
      },
      {
        "abspath": "foo",
        "author": "test",
        "desc": "commit 3 (trailing whitespace on line 3)",
        "line": "line 3    \n",
        "lineno": 6,
        "node": "dcb62cfbfc9b3ab995a5cbbaff6e1971c3e4f865",
        "revdate": [
          0.0,
          0
        ],
        "targetline": 4
      }
    ],
    "author": "test",
    "children": [],
    "date": [
      0.0,
      0
    ],
    "desc": "commit 6 (add another blank line between line 0 and 1)",
    "node": "9d1b2c7db0175870a950f8c48c9c4ead1058f2c5",
    "parents": [
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