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=======================================================
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Test the persistent on-disk nodemap during stream-clone
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=======================================================
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#testcases stream-v2 stream-v3
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#if stream-v3
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$ cat << EOF >> $HGRCPATH
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> [experimental]
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> stream-v3=yes
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> EOF
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#endif
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Setup
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=====
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#if no-rust
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$ cat << EOF >> $HGRCPATH
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> [format]
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> use-persistent-nodemap=yes
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> [devel]
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> persistent-nodemap=yes
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> [storage]
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> # to avoid spamming the test
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> revlog.persistent-nodemap.slow-path=allow
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> EOF
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#endif
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Recreate the same repo as in `test-persistent-nodemap.t`
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$ hg init test-repo --config storage.revlog.persistent-nodemap.slow-path=allow
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$ hg -R test-repo debugbuilddag .+5000 --new-file
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stream clone
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============
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The persistent nodemap should exist after a streaming clone
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Simple case
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-----------
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No race condition
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$ hg clone -U --stream ssh://user@dummy/test-repo stream-clone --debug | egrep '00(changelog|manifest)'
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adding [s] 00manifest.n (62 bytes)
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adding [s] 00manifest-*.nd (118 KB) (glob)
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adding [s] 00manifest.d (4?? KB) (glob)
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adding [s] 00manifest.i (313 KB)
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adding [s] 00changelog.n (62 bytes)
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adding [s] 00changelog-*.nd (118 KB) (glob)
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adding [s] 00changelog.d (3?? KB) (glob)
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adding [s] 00changelog.i (313 KB)
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$ ls -1 stream-clone/.hg/store/ | egrep '00(changelog|manifest)(\.n|-.*\.nd)'
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00changelog-*.nd (glob)
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00changelog.n
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00manifest-*.nd (glob)
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00manifest.n
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$ hg -R stream-clone debugnodemap --metadata
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uid: * (glob)
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tip-rev: 5000
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tip-node: 6b02b8c7b96654c25e86ba69eda198d7e6ad8b3c
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data-length: 121088
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data-unused: 0
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data-unused: 0.000%
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$ hg verify -R stream-clone
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checking changesets
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checking manifests
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crosschecking files in changesets and manifests
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checking files
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checking dirstate
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checked 5001 changesets with 5001 changes to 5001 files
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new data appened
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-----------------
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Other commit happening on the server during the stream clone
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setup the step-by-step stream cloning
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$ HG_TEST_STREAM_WALKED_FILE_1="$TESTTMP/sync_file_walked_1"
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$ export HG_TEST_STREAM_WALKED_FILE_1
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$ HG_TEST_STREAM_WALKED_FILE_2="$TESTTMP/sync_file_walked_2"
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$ export HG_TEST_STREAM_WALKED_FILE_2
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$ HG_TEST_STREAM_WALKED_FILE_3="$TESTTMP/sync_file_walked_3"
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$ export HG_TEST_STREAM_WALKED_FILE_3
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$ cat << EOF >> test-repo/.hg/hgrc
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> [extensions]
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> steps=$RUNTESTDIR/testlib/ext-stream-clone-steps.py
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> EOF
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Check and record file state beforehand
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$ f --size test-repo/.hg/store/00changelog*
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test-repo/.hg/store/00changelog-*.nd: size=121088 (glob)
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test-repo/.hg/store/00changelog.d: size=3????? (glob)
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test-repo/.hg/store/00changelog.i: size=320064
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test-repo/.hg/store/00changelog.n: size=62
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$ hg -R test-repo debugnodemap --metadata | tee server-metadata.txt
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uid: * (glob)
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tip-rev: 5000
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tip-node: 6b02b8c7b96654c25e86ba69eda198d7e6ad8b3c
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data-length: 121088
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data-unused: 0
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data-unused: 0.000%
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Prepare a commit
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$ echo foo >> test-repo/foo
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$ hg -R test-repo/ add test-repo/foo
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Do a mix of clone and commit at the same time so that the file listed on disk differ at actual transfer time.
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$ (hg clone -U --stream ssh://user@dummy/test-repo stream-clone-race-1 --debug 2>> clone-output | egrep '00(changelog|manifest)' >> clone-output; touch $HG_TEST_STREAM_WALKED_FILE_3) &
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$ $RUNTESTDIR/testlib/wait-on-file 10 $HG_TEST_STREAM_WALKED_FILE_1
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$ hg -R test-repo/ commit -m foo
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created new head
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$ touch $HG_TEST_STREAM_WALKED_FILE_2
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$ $RUNTESTDIR/testlib/wait-on-file 10 $HG_TEST_STREAM_WALKED_FILE_3
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$ cat clone-output
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adding [s] 00manifest.n (62 bytes)
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adding [s] 00manifest-*.nd (118 KB) (glob)
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adding [s] 00manifest.d (4?? KB) (glob)
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adding [s] 00manifest.i (313 KB)
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adding [s] 00changelog.n (62 bytes)
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adding [s] 00changelog-*.nd (118 KB) (glob)
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adding [s] 00changelog.d (36? KB) (glob)
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adding [s] 00changelog.i (313 KB)
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Check the result state
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$ f --size stream-clone-race-1/.hg/store/00changelog*
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stream-clone-race-1/.hg/store/00changelog-*.nd: size=121088 (glob)
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stream-clone-race-1/.hg/store/00changelog.d: size=3????? (glob)
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stream-clone-race-1/.hg/store/00changelog.i: size=320064
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stream-clone-race-1/.hg/store/00changelog.n: size=62
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$ hg -R stream-clone-race-1 debugnodemap --metadata | tee client-metadata.txt
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uid: * (glob)
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tip-rev: 5000
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tip-node: 6b02b8c7b96654c25e86ba69eda198d7e6ad8b3c
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data-length: 121088
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data-unused: 0
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data-unused: 0.000%
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$ hg verify -R stream-clone-race-1
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checking changesets
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checking manifests
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crosschecking files in changesets and manifests
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checking files
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checking dirstate
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checked 5001 changesets with 5001 changes to 5001 files
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We get a usable nodemap, so no rewrite would be needed and the metadata should be identical
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(ie: the following diff should be empty)
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This isn't the case for the `no-rust` `no-pure` implementation as it use a very minimal nodemap implementation that unconditionnaly rewrite the nodemap "all the time".
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#if no-rust no-pure
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$ diff -u server-metadata.txt client-metadata.txt
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--- server-metadata.txt * (glob)
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+++ client-metadata.txt * (glob)
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@@ -1,4 +1,4 @@
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-uid: * (glob)
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+uid: * (glob)
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tip-rev: 5000
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tip-node: 6b02b8c7b96654c25e86ba69eda198d7e6ad8b3c
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data-length: 121088
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[1]
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#else
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$ diff -u server-metadata.txt client-metadata.txt
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#endif
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Clean up after the test.
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$ rm -f "$HG_TEST_STREAM_WALKED_FILE_1"
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$ rm -f "$HG_TEST_STREAM_WALKED_FILE_2"
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$ rm -f "$HG_TEST_STREAM_WALKED_FILE_3"
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full regeneration
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-----------------
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A full nodemap is generated
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(ideally this test would append enough data to make sure the nodemap data file
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get changed, however to make thing simpler we will force the regeneration for
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this test.
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Check the initial state
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$ f --size test-repo/.hg/store/00changelog*
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test-repo/.hg/store/00changelog-*.nd: size=121??? (glob)
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test-repo/.hg/store/00changelog.d: size=3????? (glob)
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test-repo/.hg/store/00changelog.i: size=320128
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test-repo/.hg/store/00changelog.n: size=62
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$ hg -R test-repo debugnodemap --metadata | tee server-metadata-2.txt
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uid: * (glob)
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tip-rev: 5001
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tip-node: e63c23eaa88ae77967edcf4ea194d31167c478b0
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data-length: 121408 (pure !)
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data-unused: 256 (pure !)
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data-unused: 0.211% (pure !)
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data-length: 121408 (rust !)
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data-unused: 256 (rust !)
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data-unused: 0.211% (rust !)
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data-length: 121152 (no-pure no-rust !)
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data-unused: 0 (no-pure no-rust !)
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data-unused: 0.000% (no-pure no-rust !)
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Performe the mix of clone and full refresh of the nodemap, so that the files
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(and filenames) are different between listing time and actual transfer time.
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$ (hg clone -U --stream ssh://user@dummy/test-repo stream-clone-race-2 --debug 2>> clone-output-2 | egrep '00(changelog|manifest)' >> clone-output-2; touch $HG_TEST_STREAM_WALKED_FILE_3) &
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$ $RUNTESTDIR/testlib/wait-on-file 10 $HG_TEST_STREAM_WALKED_FILE_1
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$ rm test-repo/.hg/store/00changelog.n
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$ rm test-repo/.hg/store/00changelog-*.nd
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$ hg -R test-repo/ debugupdatecache
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$ touch $HG_TEST_STREAM_WALKED_FILE_2
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$ $RUNTESTDIR/testlib/wait-on-file 10 $HG_TEST_STREAM_WALKED_FILE_3
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(note: the stream clone code wronly pick the `undo.` files)
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$ cat clone-output-2
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adding [s] 00manifest.n (62 bytes)
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adding [s] 00manifest-*.nd (118 KB) (glob)
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adding [s] 00manifest.d (4?? KB) (glob)
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adding [s] 00manifest.i (313 KB)
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adding [s] 00changelog.n (62 bytes)
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adding [s] 00changelog-*.nd (11? KB) (glob)
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adding [s] 00changelog.d (3?? KB) (glob)
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adding [s] 00changelog.i (313 KB)
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Check the result.
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$ f --size stream-clone-race-2/.hg/store/00changelog*
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stream-clone-race-2/.hg/store/00changelog-*.nd: size=1????? (glob)
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stream-clone-race-2/.hg/store/00changelog.d: size=3????? (glob)
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stream-clone-race-2/.hg/store/00changelog.i: size=320128
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stream-clone-race-2/.hg/store/00changelog.n: size=62
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$ hg -R stream-clone-race-2 debugnodemap --metadata | tee client-metadata-2.txt
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uid: * (glob)
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tip-rev: 5001
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tip-node: e63c23eaa88ae77967edcf4ea194d31167c478b0
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data-length: 121408 (pure !)
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data-unused: 256 (pure !)
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data-unused: 0.211% (pure !)
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data-length: 121408 (rust !)
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data-unused: 256 (rust !)
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data-unused: 0.211% (rust !)
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data-length: 121152 (no-pure no-rust !)
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data-unused: 0 (no-pure no-rust !)
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data-unused: 0.000% (no-pure no-rust !)
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$ hg verify -R stream-clone-race-2
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checking changesets
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checking manifests
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crosschecking files in changesets and manifests
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checking files
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checking dirstate
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checked 5002 changesets with 5002 changes to 5002 files
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We get a usable nodemap, so no rewrite would be needed and the metadata should be identical
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(ie: the following diff should be empty)
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This isn't the case for the `no-rust` `no-pure` implementation as it use a very minimal nodemap implementation that unconditionnaly rewrite the nodemap "all the time".
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#if no-rust no-pure
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$ diff -u server-metadata-2.txt client-metadata-2.txt
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--- server-metadata-2.txt * (glob)
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+++ client-metadata-2.txt * (glob)
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@@ -1,4 +1,4 @@
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-uid: * (glob)
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+uid: * (glob)
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tip-rev: 5001
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tip-node: e63c23eaa88ae77967edcf4ea194d31167c478b0
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data-length: 121152
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[1]
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#else
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$ diff -u server-metadata-2.txt client-metadata-2.txt
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#endif
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Clean up after the test
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$ rm -f $HG_TEST_STREAM_WALKED_FILE_1
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$ rm -f $HG_TEST_STREAM_WALKED_FILE_2
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$ rm -f $HG_TEST_STREAM_WALKED_FILE_3
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