D2393: cleanup: say goodbye to manifestv2 format
This revision was automatically updated to reflect the committed changes. Closed by commit rHG0147a4730420: cleanup: say goodbye to manifestv2 format (authored by durin42, committed by ). REPOSITORY rHG Mercurial CHANGES SINCE LAST UPDATE https://phab.mercurial-scm.org/D2393?vs=6019=6020 REVISION DETAIL https://phab.mercurial-scm.org/D2393 AFFECTED FILES mercurial/configitems.py mercurial/help/internals/requirements.txt mercurial/localrepo.py mercurial/manifest.py mercurial/upgrade.py tests/test-manifest.py tests/test-manifestv2.t tests/test-upgrade-repo.t CHANGE DETAILS diff --git a/tests/test-upgrade-repo.t b/tests/test-upgrade-repo.t --- a/tests/test-upgrade-repo.t +++ b/tests/test-upgrade-repo.t @@ -31,23 +31,18 @@ abort: cannot upgrade repository; unsupported source requirement: shared [255] -Do not yet support upgrading manifestv2 and treemanifest repos - - $ hg --config experimental.manifestv2=true init manifestv2 - $ hg -R manifestv2 debugupgraderepo - abort: cannot upgrade repository; unsupported source requirement: manifestv2 - [255] +Do not yet support upgrading treemanifest repos $ hg --config experimental.treemanifest=true init treemanifest $ hg -R treemanifest debugupgraderepo abort: cannot upgrade repository; unsupported source requirement: treemanifest [255] -Cannot add manifestv2 or treemanifest requirement during upgrade +Cannot add treemanifest requirement during upgrade $ hg init disallowaddedreq - $ hg -R disallowaddedreq --config experimental.manifestv2=true --config experimental.treemanifest=true debugupgraderepo - abort: cannot upgrade repository; do not support adding requirement: manifestv2, treemanifest + $ hg -R disallowaddedreq --config experimental.treemanifest=true debugupgraderepo + abort: cannot upgrade repository; do not support adding requirement: treemanifest [255] An upgrade of a repository created with recommended settings only suggests optimizations diff --git a/tests/test-manifestv2.t b/tests/test-manifestv2.t deleted file mode 100644 --- a/tests/test-manifestv2.t +++ /dev/null @@ -1,102 +0,0 @@ -Create repo with old manifest - - $ cat << EOF >> $HGRCPATH - > [format] - > usegeneraldelta=yes - > EOF - - $ hg init existing - $ cd existing - $ echo footext > foo - $ hg add foo - $ hg commit -m initial - -We're using v1, so no manifestv2 entry is in requires yet. - - $ grep manifestv2 .hg/requires - [1] - -Let's clone this with manifestv2 enabled to switch to the new format for -future commits. - - $ cd .. - $ hg clone --pull existing new --config experimental.manifestv2=1 - requesting all changes - adding changesets - adding manifests - adding file changes - added 1 changesets with 1 changes to 1 files - new changesets 0fc9a4fafa44 - updating to branch default - 1 files updated, 0 files merged, 0 files removed, 0 files unresolved - $ cd new - -Check that entry was added to .hg/requires. - - $ grep manifestv2 .hg/requires - manifestv2 - -Make a new commit. - - $ echo newfootext > foo - $ hg commit -m new - -Check that the manifest actually switched to v2. - - $ hg debugdata -m 0 - foo\x0021e958b1dca695a60ee2e9cf151753204ee0f9e9 (esc) - - $ hg debugdata -m 1 - \x00 (esc) - \x00foo\x00 (esc) - I\xab\x7f\xb8(\x83\xcas\x15\x9d\xc2\xd3\xd3:5\x08\xbad5_ (esc) - -Check that manifestv2 is used if the requirement is present, even if it's -disabled in the config. - - $ echo newerfootext > foo - $ hg --config experimental.manifestv2=False commit -m newer - - $ hg debugdata -m 2 - \x00 (esc) - \x00foo\x00 (esc) - \xa6\xb1\xfb\xef]\x91\xa1\x19`\xf3.#\x90S\xf8\x06 \xe2\x19\x00 (esc) - -Check that we can still read v1 manifests. - - $ hg files -r 0 - foo - - $ cd .. - -Check that entry is added to .hg/requires on repo creation - - $ hg --config experimental.manifestv2=True init repo - $ cd repo - $ grep manifestv2 .hg/requires - manifestv2 - -Set up simple repo - - $ echo a > file1 - $ echo b > file2 - $ echo c > file3 - $ hg ci -Aqm 'initial' - $ echo d > file2 - $ hg ci -m 'modify file2' - -Check that 'hg verify', which uses manifest.readdelta(), works - - $ hg verify - checking changesets - checking manifests - crosschecking files in changesets and manifests - checking files - 3 files, 2 changesets, 4 total revisions - -Check that manifest revlog is smaller than for v1 - - $ hg debugindex -m - revoffset length delta linkrev nodeid p1 p2 - 0 0 81 -1 0 57361477c778 - 181 33 0 1 aeaab5a2ef74 57361477c778 diff --git a/tests/test-manifest.py b/tests/test-manifest.py --- a/tests/test-manifest.py +++ b/tests/test-manifest.py @@ -11,7 +11,6 @@ ) EMTPY_MANIFEST = b'' -EMTPY_MANIFEST_V2 = b'\0\n' HASH_1 = b'1' * 40 BIN_HASH_1 = binascii.unhexlify(HASH_1) @@ -28,42 +27,6 @@ b'flag2': b'l', } -# Same data
D2393: cleanup: say goodbye to manifestv2 format
durin42 updated this revision to Diff 6019. REPOSITORY rHG Mercurial CHANGES SINCE LAST UPDATE https://phab.mercurial-scm.org/D2393?vs=6006=6019 REVISION DETAIL https://phab.mercurial-scm.org/D2393 AFFECTED FILES mercurial/configitems.py mercurial/help/internals/requirements.txt mercurial/localrepo.py mercurial/manifest.py mercurial/upgrade.py tests/test-manifest.py tests/test-manifestv2.t tests/test-upgrade-repo.t CHANGE DETAILS diff --git a/tests/test-upgrade-repo.t b/tests/test-upgrade-repo.t --- a/tests/test-upgrade-repo.t +++ b/tests/test-upgrade-repo.t @@ -31,23 +31,18 @@ abort: cannot upgrade repository; unsupported source requirement: shared [255] -Do not yet support upgrading manifestv2 and treemanifest repos - - $ hg --config experimental.manifestv2=true init manifestv2 - $ hg -R manifestv2 debugupgraderepo - abort: cannot upgrade repository; unsupported source requirement: manifestv2 - [255] +Do not yet support upgrading treemanifest repos $ hg --config experimental.treemanifest=true init treemanifest $ hg -R treemanifest debugupgraderepo abort: cannot upgrade repository; unsupported source requirement: treemanifest [255] -Cannot add manifestv2 or treemanifest requirement during upgrade +Cannot add treemanifest requirement during upgrade $ hg init disallowaddedreq - $ hg -R disallowaddedreq --config experimental.manifestv2=true --config experimental.treemanifest=true debugupgraderepo - abort: cannot upgrade repository; do not support adding requirement: manifestv2, treemanifest + $ hg -R disallowaddedreq --config experimental.treemanifest=true debugupgraderepo + abort: cannot upgrade repository; do not support adding requirement: treemanifest [255] An upgrade of a repository created with recommended settings only suggests optimizations diff --git a/tests/test-manifestv2.t b/tests/test-manifestv2.t deleted file mode 100644 --- a/tests/test-manifestv2.t +++ /dev/null @@ -1,102 +0,0 @@ -Create repo with old manifest - - $ cat << EOF >> $HGRCPATH - > [format] - > usegeneraldelta=yes - > EOF - - $ hg init existing - $ cd existing - $ echo footext > foo - $ hg add foo - $ hg commit -m initial - -We're using v1, so no manifestv2 entry is in requires yet. - - $ grep manifestv2 .hg/requires - [1] - -Let's clone this with manifestv2 enabled to switch to the new format for -future commits. - - $ cd .. - $ hg clone --pull existing new --config experimental.manifestv2=1 - requesting all changes - adding changesets - adding manifests - adding file changes - added 1 changesets with 1 changes to 1 files - new changesets 0fc9a4fafa44 - updating to branch default - 1 files updated, 0 files merged, 0 files removed, 0 files unresolved - $ cd new - -Check that entry was added to .hg/requires. - - $ grep manifestv2 .hg/requires - manifestv2 - -Make a new commit. - - $ echo newfootext > foo - $ hg commit -m new - -Check that the manifest actually switched to v2. - - $ hg debugdata -m 0 - foo\x0021e958b1dca695a60ee2e9cf151753204ee0f9e9 (esc) - - $ hg debugdata -m 1 - \x00 (esc) - \x00foo\x00 (esc) - I\xab\x7f\xb8(\x83\xcas\x15\x9d\xc2\xd3\xd3:5\x08\xbad5_ (esc) - -Check that manifestv2 is used if the requirement is present, even if it's -disabled in the config. - - $ echo newerfootext > foo - $ hg --config experimental.manifestv2=False commit -m newer - - $ hg debugdata -m 2 - \x00 (esc) - \x00foo\x00 (esc) - \xa6\xb1\xfb\xef]\x91\xa1\x19`\xf3.#\x90S\xf8\x06 \xe2\x19\x00 (esc) - -Check that we can still read v1 manifests. - - $ hg files -r 0 - foo - - $ cd .. - -Check that entry is added to .hg/requires on repo creation - - $ hg --config experimental.manifestv2=True init repo - $ cd repo - $ grep manifestv2 .hg/requires - manifestv2 - -Set up simple repo - - $ echo a > file1 - $ echo b > file2 - $ echo c > file3 - $ hg ci -Aqm 'initial' - $ echo d > file2 - $ hg ci -m 'modify file2' - -Check that 'hg verify', which uses manifest.readdelta(), works - - $ hg verify - checking changesets - checking manifests - crosschecking files in changesets and manifests - checking files - 3 files, 2 changesets, 4 total revisions - -Check that manifest revlog is smaller than for v1 - - $ hg debugindex -m - revoffset length delta linkrev nodeid p1 p2 - 0 0 81 -1 0 57361477c778 - 181 33 0 1 aeaab5a2ef74 57361477c778 diff --git a/tests/test-manifest.py b/tests/test-manifest.py --- a/tests/test-manifest.py +++ b/tests/test-manifest.py @@ -11,7 +11,6 @@ ) EMTPY_MANIFEST = b'' -EMTPY_MANIFEST_V2 = b'\0\n' HASH_1 = b'1' * 40 BIN_HASH_1 = binascii.unhexlify(HASH_1) @@ -28,42 +27,6 @@ b'flag2': b'l', } -# Same data as A_SHORT_MANIFEST -A_SHORT_MANIFEST_V2 = ( -b'\0\n' -b'\x00bar/baz/qux.py\0%(flag2)s\n%(hash2)s\n' -
D2393: cleanup: say goodbye to manifestv2 format
martinvonz added a comment. LGTM. Last time I was going to remove it, I left it in because Durham felt that it was useful for forcing him to not specialize the manifest API too much for how v1 works. I believe he's pretty much done with that now, so that should no longer be a reason to keep this around. Thanks for cleaning up. INLINE COMMENTS > manifest.py:537 > +def text(self): > +# use (probably) native version for v1 > +return self._lm.text() delete "for v1"? REPOSITORY rHG Mercurial REVISION DETAIL https://phab.mercurial-scm.org/D2393 To: durin42, #hg-reviewers Cc: martinvonz, mercurial-devel ___ Mercurial-devel mailing list Mercurial-devel@mercurial-scm.org https://www.mercurial-scm.org/mailman/listinfo/mercurial-devel
D2393: cleanup: say goodbye to manifestv2 format
durin42 created this revision. Herald added a subscriber: mercurial-devel. Herald added a reviewer: hg-reviewers. REVISION SUMMARY This experiment was a bust: we'd hoped for smaller repository sizes, but things got larger. Google ended up rolling out tree manifests in a format that's compatible with the original manifest format, and I believe Facebook is doing the same. This code was never implemented as native speedups, so I'm pretty comfortable saying nobody is using the experimental feature. Let's rip it out. I noticed this code still kicking around because I was investigating a repo corruption issue for timeless. .. bc:: Support for the experimental manifestv2 format has been removed, as it was never completed and failed to meet expectations. REPOSITORY rHG Mercurial REVISION DETAIL https://phab.mercurial-scm.org/D2393 AFFECTED FILES mercurial/configitems.py mercurial/help/internals/requirements.txt mercurial/localrepo.py mercurial/manifest.py mercurial/upgrade.py tests/test-manifest.py tests/test-manifestv2.t tests/test-upgrade-repo.t CHANGE DETAILS diff --git a/tests/test-upgrade-repo.t b/tests/test-upgrade-repo.t --- a/tests/test-upgrade-repo.t +++ b/tests/test-upgrade-repo.t @@ -31,23 +31,18 @@ abort: cannot upgrade repository; unsupported source requirement: shared [255] -Do not yet support upgrading manifestv2 and treemanifest repos - - $ hg --config experimental.manifestv2=true init manifestv2 - $ hg -R manifestv2 debugupgraderepo - abort: cannot upgrade repository; unsupported source requirement: manifestv2 - [255] +Do not yet support upgrading treemanifest repos $ hg --config experimental.treemanifest=true init treemanifest $ hg -R treemanifest debugupgraderepo abort: cannot upgrade repository; unsupported source requirement: treemanifest [255] -Cannot add manifestv2 or treemanifest requirement during upgrade +Cannot add treemanifest requirement during upgrade $ hg init disallowaddedreq - $ hg -R disallowaddedreq --config experimental.manifestv2=true --config experimental.treemanifest=true debugupgraderepo - abort: cannot upgrade repository; do not support adding requirement: manifestv2, treemanifest + $ hg -R disallowaddedreq --config experimental.treemanifest=true debugupgraderepo + abort: cannot upgrade repository; do not support adding requirement: treemanifest [255] An upgrade of a repository created with recommended settings only suggests optimizations diff --git a/tests/test-manifestv2.t b/tests/test-manifestv2.t deleted file mode 100644 --- a/tests/test-manifestv2.t +++ /dev/null @@ -1,102 +0,0 @@ -Create repo with old manifest - - $ cat << EOF >> $HGRCPATH - > [format] - > usegeneraldelta=yes - > EOF - - $ hg init existing - $ cd existing - $ echo footext > foo - $ hg add foo - $ hg commit -m initial - -We're using v1, so no manifestv2 entry is in requires yet. - - $ grep manifestv2 .hg/requires - [1] - -Let's clone this with manifestv2 enabled to switch to the new format for -future commits. - - $ cd .. - $ hg clone --pull existing new --config experimental.manifestv2=1 - requesting all changes - adding changesets - adding manifests - adding file changes - added 1 changesets with 1 changes to 1 files - new changesets 0fc9a4fafa44 - updating to branch default - 1 files updated, 0 files merged, 0 files removed, 0 files unresolved - $ cd new - -Check that entry was added to .hg/requires. - - $ grep manifestv2 .hg/requires - manifestv2 - -Make a new commit. - - $ echo newfootext > foo - $ hg commit -m new - -Check that the manifest actually switched to v2. - - $ hg debugdata -m 0 - foo\x0021e958b1dca695a60ee2e9cf151753204ee0f9e9 (esc) - - $ hg debugdata -m 1 - \x00 (esc) - \x00foo\x00 (esc) - I\xab\x7f\xb8(\x83\xcas\x15\x9d\xc2\xd3\xd3:5\x08\xbad5_ (esc) - -Check that manifestv2 is used if the requirement is present, even if it's -disabled in the config. - - $ echo newerfootext > foo - $ hg --config experimental.manifestv2=False commit -m newer - - $ hg debugdata -m 2 - \x00 (esc) - \x00foo\x00 (esc) - \xa6\xb1\xfb\xef]\x91\xa1\x19`\xf3.#\x90S\xf8\x06 \xe2\x19\x00 (esc) - -Check that we can still read v1 manifests. - - $ hg files -r 0 - foo - - $ cd .. - -Check that entry is added to .hg/requires on repo creation - - $ hg --config experimental.manifestv2=True init repo - $ cd repo - $ grep manifestv2 .hg/requires - manifestv2 - -Set up simple repo - - $ echo a > file1 - $ echo b > file2 - $ echo c > file3 - $ hg ci -Aqm 'initial' - $ echo d > file2 - $ hg ci -m 'modify file2' - -Check that 'hg verify', which uses manifest.readdelta(), works - - $ hg verify - checking changesets - checking manifests - crosschecking files in changesets and manifests - checking files - 3 files, 2 changesets, 4 total revisions - -Check that manifest revlog is smaller than for v1 - - $ hg debugindex -m - revoffset length delta
