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view tests/test-grep.t @ 29859:a1092e2d70a3
help: internals topic for wire protocol
The Mercurial wire protocol is under-documented. This includes a lack
of source docstrings and comments as well as pages on the official
wiki.
This patch adds the beginnings of "internals" documentation on the
wire protocol.
The documentation should have nearly complete coverage on the
lower-level parts of the protocol, such as the different transport
mechanims, how commands and arguments are sent, capabilities, and,
of course, the commands themselves.
As part of writing this documentation, I discovered a number of
deficiencies in the protocol and bugs in the implementation. I've
started sending patches for some of the issues. I hope to send a lot
more.
This patch starts with the scaffolding for a new internals page.
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Mon, 22 Aug 2016 19:46:39 -0700 |
parents | 33461139c31c |
children | eafd380fe1b8 |
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$ hg init t $ cd t $ echo import > port $ hg add port $ hg commit -m 0 -u spam -d '0 0' $ echo export >> port $ hg commit -m 1 -u eggs -d '1 0' $ echo export > port $ echo vaportight >> port $ echo 'import/export' >> port $ hg commit -m 2 -u spam -d '2 0' $ echo 'import/export' >> port $ hg commit -m 3 -u eggs -d '3 0' $ head -n 3 port > port1 $ mv port1 port $ hg commit -m 4 -u spam -d '4 0' pattern error $ hg grep '**test**' grep: invalid match pattern: nothing to repeat [1] simple $ hg grep '.*' port:4:export port:4:vaportight port:4:import/export $ hg grep port port port:4:export port:4:vaportight port:4:import/export simple with color $ hg --config extensions.color= grep --config color.mode=ansi \ > --color=always port port \x1b[0;35mport\x1b[0m\x1b[0;36m:\x1b[0m\x1b[0;32m4\x1b[0m\x1b[0;36m:\x1b[0mex\x1b[0;31;1mport\x1b[0m (esc) \x1b[0;35mport\x1b[0m\x1b[0;36m:\x1b[0m\x1b[0;32m4\x1b[0m\x1b[0;36m:\x1b[0mva\x1b[0;31;1mport\x1b[0might (esc) \x1b[0;35mport\x1b[0m\x1b[0;36m:\x1b[0m\x1b[0;32m4\x1b[0m\x1b[0;36m:\x1b[0mim\x1b[0;31;1mport\x1b[0m/ex\x1b[0;31;1mport\x1b[0m (esc) simple templated $ hg grep port \ > -T '{file}:{rev}:{node|short}:{texts % "{if(matched, text|upper, text)}"}\n' port:4:914fa752cdea:exPORT port:4:914fa752cdea:vaPORTight port:4:914fa752cdea:imPORT/exPORT simple JSON (no "change" field) $ hg grep -Tjson port [ { "date": [4.0, 0], "file": "port", "line_number": 1, "node": "914fa752cdea87777ac1a8d5c858b0c736218f6c", "rev": 4, "texts": [{"matched": false, "text": "ex"}, {"matched": true, "text": "port"}], "user": "spam" }, { "date": [4.0, 0], "file": "port", "line_number": 2, "node": "914fa752cdea87777ac1a8d5c858b0c736218f6c", "rev": 4, "texts": [{"matched": false, "text": "va"}, {"matched": true, "text": "port"}, {"matched": false, "text": "ight"}], "user": "spam" }, { "date": [4.0, 0], "file": "port", "line_number": 3, "node": "914fa752cdea87777ac1a8d5c858b0c736218f6c", "rev": 4, "texts": [{"matched": false, "text": "im"}, {"matched": true, "text": "port"}, {"matched": false, "text": "/ex"}, {"matched": true, "text": "port"}], "user": "spam" } ] simple JSON without matching lines $ hg grep -Tjson -l port [ { "date": [4.0, 0], "file": "port", "line_number": 1, "node": "914fa752cdea87777ac1a8d5c858b0c736218f6c", "rev": 4, "user": "spam" } ] all $ hg grep --traceback --all -nu port port port:4:4:-:spam:import/export port:3:4:+:eggs:import/export port:2:1:-:spam:import port:2:2:-:spam:export port:2:1:+:spam:export port:2:2:+:spam:vaportight port:2:3:+:spam:import/export port:1:2:+:eggs:export port:0:1:+:spam:import all JSON $ hg grep --all -Tjson port port [ { "change": "-", "date": [4.0, 0], "file": "port", "line_number": 4, "node": "914fa752cdea87777ac1a8d5c858b0c736218f6c", "rev": 4, "texts": [{"matched": false, "text": "im"}, {"matched": true, "text": "port"}, {"matched": false, "text": "/ex"}, {"matched": true, "text": "port"}], "user": "spam" }, { "change": "+", "date": [3.0, 0], "file": "port", "line_number": 4, "node": "95040cfd017d658c536071c6290230a613c4c2a6", "rev": 3, "texts": [{"matched": false, "text": "im"}, {"matched": true, "text": "port"}, {"matched": false, "text": "/ex"}, {"matched": true, "text": "port"}], "user": "eggs" }, { "change": "-", "date": [2.0, 0], "file": "port", "line_number": 1, "node": "3b325e3481a1f07435d81dfdbfa434d9a0245b47", "rev": 2, "texts": [{"matched": false, "text": "im"}, {"matched": true, "text": "port"}], "user": "spam" }, { "change": "-", "date": [2.0, 0], "file": "port", "line_number": 2, "node": "3b325e3481a1f07435d81dfdbfa434d9a0245b47", "rev": 2, "texts": [{"matched": false, "text": "ex"}, {"matched": true, "text": "port"}], "user": "spam" }, { "change": "+", "date": [2.0, 0], "file": "port", "line_number": 1, "node": "3b325e3481a1f07435d81dfdbfa434d9a0245b47", "rev": 2, "texts": [{"matched": false, "text": "ex"}, {"matched": true, "text": "port"}], "user": "spam" }, { "change": "+", "date": [2.0, 0], "file": "port", "line_number": 2, "node": "3b325e3481a1f07435d81dfdbfa434d9a0245b47", "rev": 2, "texts": [{"matched": false, "text": "va"}, {"matched": true, "text": "port"}, {"matched": false, "text": "ight"}], "user": "spam" }, { "change": "+", "date": [2.0, 0], "file": "port", "line_number": 3, "node": "3b325e3481a1f07435d81dfdbfa434d9a0245b47", "rev": 2, "texts": [{"matched": false, "text": "im"}, {"matched": true, "text": "port"}, {"matched": false, "text": "/ex"}, {"matched": true, "text": "port"}], "user": "spam" }, { "change": "+", "date": [1.0, 0], "file": "port", "line_number": 2, "node": "8b20f75c158513ff5ac80bd0e5219bfb6f0eb587", "rev": 1, "texts": [{"matched": false, "text": "ex"}, {"matched": true, "text": "port"}], "user": "eggs" }, { "change": "+", "date": [0.0, 0], "file": "port", "line_number": 1, "node": "f31323c9217050ba245ee8b537c713ec2e8ab226", "rev": 0, "texts": [{"matched": false, "text": "im"}, {"matched": true, "text": "port"}], "user": "spam" } ] other $ hg grep -l port port port:4 $ hg grep import port port:4:import/export $ hg cp port port2 $ hg commit -m 4 -u spam -d '5 0' follow $ hg grep --traceback -f 'import\n\Z' port2 port:0:import $ echo deport >> port2 $ hg commit -m 5 -u eggs -d '6 0' $ hg grep -f --all -nu port port2 port2:6:4:+:eggs:deport port:4:4:-:spam:import/export port:3:4:+:eggs:import/export port:2:1:-:spam:import port:2:2:-:spam:export port:2:1:+:spam:export port:2:2:+:spam:vaportight port:2:3:+:spam:import/export port:1:2:+:eggs:export port:0:1:+:spam:import $ hg up -q null $ hg grep -f port [1] $ cd .. $ hg init t2 $ cd t2 $ hg grep foobar foo [1] $ hg grep foobar [1] $ echo blue >> color $ echo black >> color $ hg add color $ hg ci -m 0 $ echo orange >> color $ hg ci -m 1 $ echo black > color $ hg ci -m 2 $ echo orange >> color $ echo blue >> color $ hg ci -m 3 $ hg grep orange color:3:orange $ hg grep --all orange color:3:+:orange color:2:-:orange color:1:+:orange test substring match: '^' should only match at the beginning $ hg grep '^.' --config extensions.color= --color debug [grep.filename|color][grep.sep|:][grep.rev|3][grep.sep|:][grep.match|b]lack [grep.filename|color][grep.sep|:][grep.rev|3][grep.sep|:][grep.match|o]range [grep.filename|color][grep.sep|:][grep.rev|3][grep.sep|:][grep.match|b]lue match in last "line" without newline $ $PYTHON -c 'fp = open("noeol", "wb"); fp.write("no infinite loop"); fp.close();' $ hg ci -Amnoeol adding noeol $ hg grep loop noeol:4:no infinite loop $ cd .. Issue685: traceback in grep -r after rename Got a traceback when using grep on a single revision with renamed files. $ hg init issue685 $ cd issue685 $ echo octarine > color $ hg ci -Amcolor adding color $ hg rename color colour $ hg ci -Am rename $ hg grep octarine colour:1:octarine color:0:octarine Used to crash here $ hg grep -r 1 octarine colour:1:octarine $ cd .. Issue337: test that grep follows parent-child relationships instead of just using revision numbers. $ hg init issue337 $ cd issue337 $ echo white > color $ hg commit -A -m "0 white" adding color $ echo red > color $ hg commit -A -m "1 red" $ hg update 0 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ echo black > color $ hg commit -A -m "2 black" created new head $ hg update --clean 1 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ echo blue > color $ hg commit -A -m "3 blue" $ hg grep --all red color:3:-:red color:1:+:red $ cd .. $ hg init a $ cd a $ cp "$TESTDIR/binfile.bin" . $ hg add binfile.bin $ hg ci -m 'add binfile.bin' $ hg grep "MaCam" --all binfile.bin:0:+: Binary file matches $ cd ..