Mercurial > hg
view tests/test-convert-baz.t @ 39641:aa7e312375cf
wireprotov2: let clients drive delta behavior
Previously, the "manifestdata" and "filedata" commands assumed the
receiver had all parent revisions for requested nodes. Unless the
revision had no parents, they emitted a delta instead of a fulltext.
This strategy isn't appropriate for shallow clones and for clients
that only want to access fulltext revision data for a single node
without fetching their parent revisions.
This commit adds an "haveparents" argument to the "manifestdata"
and "filedata" commands that controls delta generation behavior.
Unless "haveparents" is set, the server assumes that the client
doesn't have parent revisions unless they were previously sent
as part of the current group of revisions.
This change allows the fulltext revision data of any individual
revision to be obtained. This will facilitate shallow clones
and other data retrieval strategies that don't require all previous
revisions of an entity to be fetched.
Differential Revision: https://phab.mercurial-scm.org/D4492
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Thu, 30 Aug 2018 14:55:34 -0700 |
parents | 561a019c0268 |
children |
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#require baz symlink $ baz my-id "mercurial <mercurial@mercurial-scm.org>" $ echo "[extensions]" >> $HGRCPATH $ echo "convert=" >> $HGRCPATH create baz archive $ baz make-archive baz@mercurial--convert hg-test-convert-baz initialize baz repo $ mkdir baz-repo $ cd baz-repo/ $ baz init-tree baz@mercurial--convert/baz--test--0 $ baz import * creating version baz@mercurial--convert/baz--test--0 * imported baz@mercurial--convert/baz--test--0 create initial files $ echo 'this is a file' > a $ baz add a $ mkdir src $ baz add src $ cd src $ dd count=1 if=/dev/zero of=b > /dev/null 2> /dev/null $ baz add b HACK: hide GNU tar-1.22 "tar: The --preserve option is deprecated, use --preserve-permissions --preserve-order instead" $ baz commit -s "added a file, src and src/b (binary)" 2>&1 | grep -v '^tar' * build pristine tree for baz@mercurial--convert/baz--test--0--base-0 * Scanning for full-tree revision: . * from import revision: baz@mercurial--convert/baz--test--0--base-0 A/ .arch-ids A/ src A/ src/.arch-ids A .arch-ids/a.id A a A src/.arch-ids/=id A src/.arch-ids/b.id A src/b * update pristine tree (baz@mercurial--convert/baz--test--0--base-0 => baz--test--0--patch-1) * committed baz@mercurial--convert/baz--test--0--patch-1 create link file and modify a $ ln -s ../a a-link $ baz add a-link $ echo 'this a modification to a' >> ../a $ baz commit -s "added link to a and modify a" A src/.arch-ids/a-link.id A src/a-link M a * update pristine tree (baz@mercurial--convert/baz--test--0--patch-1 => baz--test--0--patch-2) * committed baz@mercurial--convert/baz--test--0--patch-2 create second link and modify b $ ln -s ../a a-link-2 $ baz add a-link-2 $ dd count=1 seek=1 if=/dev/zero of=b > /dev/null 2> /dev/null $ baz commit -s "added second link and modify b" A src/.arch-ids/a-link-2.id A src/a-link-2 Mb src/b * update pristine tree (baz@mercurial--convert/baz--test--0--patch-2 => baz--test--0--patch-3) * committed baz@mercurial--convert/baz--test--0--patch-3 b file to link and a-link-2 to regular file $ rm -f a-link-2 $ echo 'this is now a regular file' > a-link-2 $ ln -sf ../a b $ baz commit -s "file to link and link to file test" fl src/b lf src/a-link-2 * update pristine tree (baz@mercurial--convert/baz--test--0--patch-3 => baz--test--0--patch-4) * committed baz@mercurial--convert/baz--test--0--patch-4 move a-link-2 file and src directory $ cd .. $ baz mv src/a-link-2 c $ baz mv src test $ baz commit -s "move and rename a-link-2 file and src directory" D/ src/.arch-ids A/ test/.arch-ids /> src test => src/.arch-ids/a-link-2.id .arch-ids/c.id => src/a-link-2 c => src/.arch-ids/=id test/.arch-ids/=id => src/.arch-ids/a-link.id test/.arch-ids/a-link.id => src/.arch-ids/b.id test/.arch-ids/b.id * update pristine tree (baz@mercurial--convert/baz--test--0--patch-4 => baz--test--0--patch-5) * committed baz@mercurial--convert/baz--test--0--patch-5 move and add the moved file again $ echo e > e $ baz add e $ baz commit -s "add e" A .arch-ids/e.id A e * update pristine tree (baz@mercurial--convert/baz--test--0--patch-5 => baz--test--0--patch-6) * committed baz@mercurial--convert/baz--test--0--patch-6 $ baz mv e f $ echo ee > e $ baz add e $ baz commit -s "move e and recreate it again" A .arch-ids/e.id A e => .arch-ids/e.id .arch-ids/f.id => e f * update pristine tree (baz@mercurial--convert/baz--test--0--patch-6 => baz--test--0--patch-7) * committed baz@mercurial--convert/baz--test--0--patch-7 $ cd .. converting baz repo to Mercurial $ hg convert baz-repo baz-repo-hg initializing destination baz-repo-hg repository analyzing tree version baz@mercurial--convert/baz--test--0... scanning source... sorting... converting... 7 initial import 6 added a file, src and src/b (binary) 5 added link to a and modify a 4 added second link and modify b 3 file to link and link to file test 2 move and rename a-link-2 file and src directory 1 add e 0 move e and recreate it again $ baz register-archive -d baz@mercurial--convert $ glog() > { > hg log -G --template '{rev} "{desc|firstline}" files: {files}\n' "$@" > } show graph log $ glog -R baz-repo-hg o 7 "move e and recreate it again" files: e f | o 6 "add e" files: e | o 5 "move and rename a-link-2 file and src directory" files: c src/a-link src/a-link-2 src/b test/a-link test/b | o 4 "file to link and link to file test" files: src/a-link-2 src/b | o 3 "added second link and modify b" files: src/a-link-2 src/b | o 2 "added link to a and modify a" files: a src/a-link | o 1 "added a file, src and src/b (binary)" files: a src/b | o 0 "initial import" files: $ hg up -q -R baz-repo-hg $ hg -R baz-repo-hg manifest --debug c4072c4b72e1cabace081888efa148ee80ca3cbb 644 a 0201ac32a3a8e86e303dff60366382a54b48a72e 644 c 1a4a864db0073705a11b1439f563bfa4b46d9246 644 e 09e0222742fc3f75777fa9d68a5d8af7294cb5e7 644 f c0067ba5ff0b7c9a3eb17270839d04614c435623 644 @ test/a-link 375f4263d86feacdea7e3c27100abd1560f2a973 644 @ test/b $ hg -R baz-repo-hg log -r 5 -r 7 -C --debug | grep copies copies: c (src/a-link-2) test/a-link (src/a-link) test/b (src/b) copies: f (e)