Mercurial > hg
view tests/test-narrow-patterns.t @ 37048:fc5e261915b9
wireproto: require POST for all HTTPv2 requests
Wire protocol version 1 transfers argument data via request
headers by default. This has historically caused problems because
servers institute limits on the length of individual HTTP headers
as well as the total size of all request headers. Mercurial servers
can advertise the maximum length of an individual header. But
there's no guarantee any intermediate HTTP agents will accept
headers up to that length.
In the existing wire protocol, server operators typically also
key off the HTTP request method to implement authentication.
For example, GET requests translate to read-only requests and
can be allowed. But read-write commands must use POST and require
authentication. This has typically worked because the only wire
protocol commands that use POST modify the repo (e.g. the
"unbundle" command).
There is an experimental feature to enable clients to transmit
argument data via POST request bodies. This is technically a
better and more robust solution. But we can't enable it by default
because of servers assuming POST means write access.
In version 2 of the wire protocol, the permissions of a request
are encoded in the URL. And with it being a new protocol in a new
URL space, we're not constrained by backwards compatibility
requirements.
This commit adopts the technically superior mechanism of using
HTTP request bodies to send argument data by requiring POST for
all commands. Strictly speaking, it may be possible to send
request bodies on GET requests. But my experience is that not all
HTTP stacks support this. POST pretty much always works. Using POST
for read-only operations does sacrifice some RESTful design
purity. But this API cares about practicality, not about being
in Roy T. Fielding's REST ivory tower.
There's a chance we may relax this restriction in the future. But
for now, I want to see how far we can get with a POST only API.
Differential Revision: https://phab.mercurial-scm.org/D2837
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Tue, 13 Mar 2018 11:57:43 -0700 |
parents | 6767e7ce2c31 |
children | 7542e97c7867 |
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$ . "$TESTDIR/narrow-library.sh" initialize nested directories to validate complex include/exclude patterns $ hg init master $ cd master $ cat >> .hg/hgrc <<EOF > [narrow] > serveellipses=True > EOF $ echo root > root $ hg add root $ hg commit -m 'add root' $ for d in dir1 dir2 dir1/dirA dir1/dirB dir2/dirA dir2/dirB > do > mkdir -p $d > echo $d/foo > $d/foo > hg add $d/foo > hg commit -m "add $d/foo" > echo $d/bar > $d/bar > hg add $d/bar > hg commit -m "add $d/bar" > done #if execbit $ chmod +x dir1/dirA/foo $ hg commit -m "make dir1/dirA/foo executable" #else $ hg import --bypass - <<EOF > # HG changeset patch > make dir1/dirA/foo executable > > diff --git a/dir1/dirA/foo b/dir1/dirA/foo > old mode 100644 > new mode 100755 > EOF applying patch from stdin $ hg update -qr tip #endif $ hg log -G -T '{rev} {node|short} {files}\n' @ 13 c87ca422d521 dir1/dirA/foo | o 12 951b8a83924e dir2/dirB/bar | o 11 01ae5a51b563 dir2/dirB/foo | o 10 5eababdf0ac5 dir2/dirA/bar | o 9 99d690663739 dir2/dirA/foo | o 8 8e80155d5445 dir1/dirB/bar | o 7 406760310428 dir1/dirB/foo | o 6 623466a5f475 dir1/dirA/bar | o 5 06ff3a5be997 dir1/dirA/foo | o 4 33227af02764 dir2/bar | o 3 5e1f9d8d7c69 dir2/foo | o 2 594bc4b13d4a dir1/bar | o 1 47f480a08324 dir1/foo | o 0 2a4f0c3b67da root $ cd .. clone a narrow portion of the master, such that we can widen it later $ hg clone --narrow ssh://user@dummy/master narrow \ > --include dir1 \ > --include dir2 \ > --exclude dir1/dirA \ > --exclude dir1/dirB \ > --exclude dir2/dirA \ > --exclude dir2/dirB requesting all changes adding changesets adding manifests adding file changes added 6 changesets with 4 changes to 4 files new changesets *:* (glob) updating to branch default 4 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd narrow $ cat .hg/narrowspec [includes] path:dir1 path:dir2 [excludes] path:dir1/dirA path:dir1/dirB path:dir2/dirA path:dir2/dirB $ hg manifest -r tip dir1/bar dir1/dirA/bar dir1/dirA/foo dir1/dirB/bar dir1/dirB/foo dir1/foo dir2/bar dir2/dirA/bar dir2/dirA/foo dir2/dirB/bar dir2/dirB/foo dir2/foo root $ find * | sort dir1 dir1/bar dir1/foo dir2 dir2/bar dir2/foo $ hg log -G -T '{rev} {node|short}{if(ellipsis, "...")} {files}\n' @ 5 c87ca422d521... dir1/dirA/foo | o 4 33227af02764 dir2/bar | o 3 5e1f9d8d7c69 dir2/foo | o 2 594bc4b13d4a dir1/bar | o 1 47f480a08324 dir1/foo | o 0 2a4f0c3b67da... root widen the narrow checkout $ hg tracked --removeexclude dir1/dirA comparing with ssh://user@dummy/master searching for changes no changes found saved backup bundle to $TESTTMP/narrow/.hg/strip-backup/*-widen.hg (glob) adding changesets adding manifests adding file changes added 9 changesets with 6 changes to 6 files new changesets *:* (glob) $ cat .hg/narrowspec [includes] path:dir1 path:dir2 [excludes] path:dir1/dirB path:dir2/dirA path:dir2/dirB $ find * | sort dir1 dir1/bar dir1/dirA dir1/dirA/bar dir1/dirA/foo dir1/foo dir2 dir2/bar dir2/foo #if execbit $ test -x dir1/dirA/foo && echo executable executable $ test -x dir1/dirA/bar || echo not executable not executable #endif $ hg log -G -T '{rev} {node|short}{if(ellipsis, "...")} {files}\n' @ 8 c87ca422d521 dir1/dirA/foo | o 7 951b8a83924e... dir2/dirB/bar | o 6 623466a5f475 dir1/dirA/bar | o 5 06ff3a5be997 dir1/dirA/foo | o 4 33227af02764 dir2/bar | o 3 5e1f9d8d7c69 dir2/foo | o 2 594bc4b13d4a dir1/bar | o 1 47f480a08324 dir1/foo | o 0 2a4f0c3b67da... root widen narrow spec again, but exclude a file in previously included spec $ hg tracked --removeexclude dir2/dirB --addexclude dir1/dirA/bar comparing with ssh://user@dummy/master searching for changes looking for local changes to affected paths deleting data/dir1/dirA/bar.i no changes found saved backup bundle to $TESTTMP/narrow/.hg/strip-backup/*-widen.hg (glob) adding changesets adding manifests adding file changes added 11 changesets with 7 changes to 7 files new changesets *:* (glob) $ cat .hg/narrowspec [includes] path:dir1 path:dir2 [excludes] path:dir1/dirA/bar path:dir1/dirB path:dir2/dirA $ find * | sort dir1 dir1/bar dir1/dirA dir1/dirA/foo dir1/foo dir2 dir2/bar dir2/dirB dir2/dirB/bar dir2/dirB/foo dir2/foo $ hg log -G -T '{rev} {node|short}{if(ellipsis, "...")} {files}\n' @ 10 c87ca422d521 dir1/dirA/foo | o 9 951b8a83924e dir2/dirB/bar | o 8 01ae5a51b563 dir2/dirB/foo | o 7 5eababdf0ac5... dir2/dirA/bar | o 6 623466a5f475... dir1/dirA/bar | o 5 06ff3a5be997 dir1/dirA/foo | o 4 33227af02764 dir2/bar | o 3 5e1f9d8d7c69 dir2/foo | o 2 594bc4b13d4a dir1/bar | o 1 47f480a08324 dir1/foo | o 0 2a4f0c3b67da... root widen narrow spec yet again, excluding a directory in previous spec $ hg tracked --removeexclude dir2/dirA --addexclude dir1/dirA comparing with ssh://user@dummy/master searching for changes looking for local changes to affected paths deleting data/dir1/dirA/foo.i no changes found saved backup bundle to $TESTTMP/narrow/.hg/strip-backup/*-widen.hg (glob) adding changesets adding manifests adding file changes added 13 changesets with 8 changes to 8 files new changesets *:* (glob) $ cat .hg/narrowspec [includes] path:dir1 path:dir2 [excludes] path:dir1/dirA path:dir1/dirA/bar path:dir1/dirB $ find * | sort dir1 dir1/bar dir1/foo dir2 dir2/bar dir2/dirA dir2/dirA/bar dir2/dirA/foo dir2/dirB dir2/dirB/bar dir2/dirB/foo dir2/foo $ hg log -G -T '{rev} {node|short}{if(ellipsis, "...")} {files}\n' @ 12 c87ca422d521... dir1/dirA/foo | o 11 951b8a83924e dir2/dirB/bar | o 10 01ae5a51b563 dir2/dirB/foo | o 9 5eababdf0ac5 dir2/dirA/bar | o 8 99d690663739 dir2/dirA/foo | o 7 8e80155d5445... dir1/dirB/bar | o 6 623466a5f475... dir1/dirA/bar | o 5 06ff3a5be997... dir1/dirA/foo | o 4 33227af02764 dir2/bar | o 3 5e1f9d8d7c69 dir2/foo | o 2 594bc4b13d4a dir1/bar | o 1 47f480a08324 dir1/foo | o 0 2a4f0c3b67da... root include a directory that was previously explicitly excluded $ hg tracked --removeexclude dir1/dirA comparing with ssh://user@dummy/master searching for changes no changes found saved backup bundle to $TESTTMP/narrow/.hg/strip-backup/*-widen.hg (glob) adding changesets adding manifests adding file changes added 13 changesets with 9 changes to 9 files new changesets *:* (glob) $ cat .hg/narrowspec [includes] path:dir1 path:dir2 [excludes] path:dir1/dirA/bar path:dir1/dirB $ find * | sort dir1 dir1/bar dir1/dirA dir1/dirA/foo dir1/foo dir2 dir2/bar dir2/dirA dir2/dirA/bar dir2/dirA/foo dir2/dirB dir2/dirB/bar dir2/dirB/foo dir2/foo $ hg log -G -T '{rev} {node|short}{if(ellipsis, "...")} {files}\n' @ 12 c87ca422d521 dir1/dirA/foo | o 11 951b8a83924e dir2/dirB/bar | o 10 01ae5a51b563 dir2/dirB/foo | o 9 5eababdf0ac5 dir2/dirA/bar | o 8 99d690663739 dir2/dirA/foo | o 7 8e80155d5445... dir1/dirB/bar | o 6 623466a5f475... dir1/dirA/bar | o 5 06ff3a5be997 dir1/dirA/foo | o 4 33227af02764 dir2/bar | o 3 5e1f9d8d7c69 dir2/foo | o 2 594bc4b13d4a dir1/bar | o 1 47f480a08324 dir1/foo | o 0 2a4f0c3b67da... root $ cd .. clone a narrow portion of the master, such that we can widen it later $ hg clone --narrow ssh://user@dummy/master narrow2 --include dir1/dirA requesting all changes adding changesets adding manifests adding file changes added 5 changesets with 2 changes to 2 files new changesets *:* (glob) updating to branch default 2 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd narrow2 $ find * | sort dir1 dir1/dirA dir1/dirA/bar dir1/dirA/foo $ hg tracked --addinclude dir1 comparing with ssh://user@dummy/master searching for changes no changes found saved backup bundle to $TESTTMP/narrow2/.hg/strip-backup/*-widen.hg (glob) adding changesets adding manifests adding file changes added 10 changesets with 6 changes to 6 files new changesets *:* (glob) $ find * | sort dir1 dir1/bar dir1/dirA dir1/dirA/bar dir1/dirA/foo dir1/dirB dir1/dirB/bar dir1/dirB/foo dir1/foo $ hg log -G -T '{rev} {node|short}{if(ellipsis, "...")} {files}\n' @ 9 c87ca422d521 dir1/dirA/foo | o 8 951b8a83924e... dir2/dirB/bar | o 7 8e80155d5445 dir1/dirB/bar | o 6 406760310428 dir1/dirB/foo | o 5 623466a5f475 dir1/dirA/bar | o 4 06ff3a5be997 dir1/dirA/foo | o 3 33227af02764... dir2/bar | o 2 594bc4b13d4a dir1/bar | o 1 47f480a08324 dir1/foo | o 0 2a4f0c3b67da... root