Mercurial > hg
view tests/test-convert-git.t @ 27633:37d7cf569cf3
wireproto: support disabling bundle1 only if repo is generaldelta
I recently implemented the server.bundle1* options to control whether
bundle1 exchange is allowed.
After thinking about Mozilla's strategy for handling generaldelta
rollout a bit more, I think server operators need an additional
lever: disable bundle1 if and only if the repo is generaldelta.
bundle1 exchange for non-generaldelta repos will not have the potential
for CPU explosion that generaldelta repos do. Therefore, it makes sense
for server operators to continue to allow bundle1 exchange for
non-generaldelta repos without having to set a per-repo hgrc option
to change the policy depending on whether the repo is generaldelta.
This patch introduces a new set of options to control bundle1 behavior
for generaldelta repos. These options enable server operators to limit
bundle1 restrictions to the class of repos that can be performance
issues. It also allows server operators to tie bundle1 access to store
format. In many server environments (including Mozilla's), legacy repos
will not be generaldelta and new repos will or might be. New repos often
aren't bound by legacy access requirements, so setting a global policy
that disallows access to new/generaldelta repos via bundle1 could be a
reasonable policy in many server environments. This patch makes this
policy very easy to implement (modify global hgrc, add options to
existing generaldelta repos to grandfather them in).
| author | Gregory Szorc <gregory.szorc@gmail.com> |
|---|---|
| date | Sun, 20 Dec 2015 11:56:24 -0800 |
| parents | a8a5206585ec |
| children | cdda7b96afff |
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#require git $ echo "[core]" >> $HOME/.gitconfig $ echo "autocrlf = false" >> $HOME/.gitconfig $ echo "[core]" >> $HOME/.gitconfig $ echo "autocrlf = false" >> $HOME/.gitconfig $ echo "[extensions]" >> $HGRCPATH $ echo "convert=" >> $HGRCPATH $ GIT_AUTHOR_NAME='test'; export GIT_AUTHOR_NAME $ GIT_AUTHOR_EMAIL='test@example.org'; export GIT_AUTHOR_EMAIL $ GIT_AUTHOR_DATE="2007-01-01 00:00:00 +0000"; export GIT_AUTHOR_DATE $ GIT_COMMITTER_NAME="$GIT_AUTHOR_NAME"; export GIT_COMMITTER_NAME $ GIT_COMMITTER_EMAIL="$GIT_AUTHOR_EMAIL"; export GIT_COMMITTER_EMAIL $ GIT_COMMITTER_DATE="$GIT_AUTHOR_DATE"; export GIT_COMMITTER_DATE $ INVALIDID1=afd12345af $ INVALIDID2=28173x36ddd1e67bf7098d541130558ef5534a86 $ VALIDID1=39b3d83f9a69a9ba4ebb111461071a0af0027357 $ VALIDID2=8dd6476bd09d9c7776355dc454dafe38efaec5da $ count=10 $ commit() > { > GIT_AUTHOR_DATE="2007-01-01 00:00:$count +0000" > GIT_COMMITTER_DATE="$GIT_AUTHOR_DATE" > git commit "$@" >/dev/null 2>/dev/null || echo "git commit error" > count=`expr $count + 1` > } $ mkdir git-repo $ cd git-repo $ git init-db >/dev/null 2>/dev/null $ echo a > a $ mkdir d $ echo b > d/b $ git add a d $ commit -a -m t1 Remove the directory, then try to replace it with a file (issue754) $ git rm -f d/b rm 'd/b' $ commit -m t2 $ echo d > d $ git add d $ commit -m t3 $ echo b >> a $ commit -a -m t4.1 $ git checkout -b other HEAD~ >/dev/null 2>/dev/null $ echo c > a $ echo a >> a $ commit -a -m t4.2 $ git checkout master >/dev/null 2>/dev/null $ git pull --no-commit . other > /dev/null 2>/dev/null $ commit -m 'Merge branch other' $ cd .. $ hg convert --config extensions.progress= --config progress.assume-tty=1 \ > --config progress.delay=0 --config progress.changedelay=0 \ > --config progress.refresh=0 --config progress.width=60 \ > --config progress.format='topic, bar, number' --datesort git-repo \r (no-eol) (esc) scanning [======> ] 1/6\r (no-eol) (esc) scanning [=============> ] 2/6\r (no-eol) (esc) scanning [=====================> ] 3/6\r (no-eol) (esc) scanning [============================> ] 4/6\r (no-eol) (esc) scanning [===================================> ] 5/6\r (no-eol) (esc) scanning [===========================================>] 6/6\r (no-eol) (esc) \r (no-eol) (esc) \r (no-eol) (esc) converting [ ] 0/6\r (no-eol) (esc) getting files [==================> ] 1/2\r (no-eol) (esc) getting files [======================================>] 2/2\r (no-eol) (esc) \r (no-eol) (esc) \r (no-eol) (esc) converting [======> ] 1/6\r (no-eol) (esc) getting files [======================================>] 1/1\r (no-eol) (esc) \r (no-eol) (esc) \r (no-eol) (esc) converting [=============> ] 2/6\r (no-eol) (esc) getting files [======================================>] 1/1\r (no-eol) (esc) \r (no-eol) (esc) \r (no-eol) (esc) converting [====================> ] 3/6\r (no-eol) (esc) getting files [======================================>] 1/1\r (no-eol) (esc) \r (no-eol) (esc) \r (no-eol) (esc) converting [===========================> ] 4/6\r (no-eol) (esc) getting files [======================================>] 1/1\r (no-eol) (esc) \r (no-eol) (esc) \r (no-eol) (esc) converting [==================================> ] 5/6\r (no-eol) (esc) getting files [======================================>] 1/1\r (no-eol) (esc) \r (no-eol) (esc) assuming destination git-repo-hg initializing destination git-repo-hg repository scanning source... sorting... converting... 5 t1 4 t2 3 t3 2 t4.1 1 t4.2 0 Merge branch other updating bookmarks $ hg up -q -R git-repo-hg $ hg -R git-repo-hg tip -v changeset: 5:c78094926be2 bookmark: master tag: tip parent: 3:f5f5cb45432b parent: 4:4e174f80c67c user: test <test@example.org> date: Mon Jan 01 00:00:15 2007 +0000 files: a description: Merge branch other $ count=10 $ mkdir git-repo2 $ cd git-repo2 $ git init-db >/dev/null 2>/dev/null $ echo foo > foo $ git add foo $ commit -a -m 'add foo' $ echo >> foo $ commit -a -m 'change foo' $ git checkout -b Bar HEAD~ >/dev/null 2>/dev/null $ echo quux >> quux $ git add quux $ commit -a -m 'add quux' $ echo bar > bar $ git add bar $ commit -a -m 'add bar' $ git checkout -b Baz HEAD~ >/dev/null 2>/dev/null $ echo baz > baz $ git add baz $ commit -a -m 'add baz' $ git checkout master >/dev/null 2>/dev/null $ git pull --no-commit . Bar Baz > /dev/null 2>/dev/null $ commit -m 'Octopus merge' $ echo bar >> bar $ commit -a -m 'change bar' $ git checkout -b Foo HEAD~ >/dev/null 2>/dev/null $ echo >> foo $ commit -a -m 'change foo' $ git checkout master >/dev/null 2>/dev/null $ git pull --no-commit -s ours . Foo > /dev/null 2>/dev/null $ commit -m 'Discard change to foo' $ cd .. $ glog() > { > hg log -G --template '{rev} "{desc|firstline}" files: {files}\n' "$@" > } $ splitrepo() > { > msg="$1" > files="$2" > opts=$3 > echo "% $files: $msg" > prefix=`echo "$files" | sed -e 's/ /-/g'` > fmap="$prefix.fmap" > repo="$prefix.repo" > for i in $files; do > echo "include $i" >> "$fmap" > done > hg -q convert $opts --filemap "$fmap" --datesort git-repo2 "$repo" > hg up -q -R "$repo" > glog -R "$repo" > hg -R "$repo" manifest --debug > } full conversion $ hg convert --datesort git-repo2 fullrepo \ > --config extensions.progress= --config progress.assume-tty=1 \ > --config progress.delay=0 --config progress.changedelay=0 \ > --config progress.refresh=0 --config progress.width=60 \ > --config progress.format='topic, bar, number' \r (no-eol) (esc) scanning [===> ] 1/9\r (no-eol) (esc) scanning [========> ] 2/9\r (no-eol) (esc) scanning [=============> ] 3/9\r (no-eol) (esc) scanning [==================> ] 4/9\r (no-eol) (esc) scanning [=======================> ] 5/9\r (no-eol) (esc) scanning [============================> ] 6/9\r (no-eol) (esc) scanning [=================================> ] 7/9\r (no-eol) (esc) scanning [======================================> ] 8/9\r (no-eol) (esc) scanning [===========================================>] 9/9\r (no-eol) (esc) \r (no-eol) (esc) \r (no-eol) (esc) converting [ ] 0/9\r (no-eol) (esc) getting files [======================================>] 1/1\r (no-eol) (esc) \r (no-eol) (esc) \r (no-eol) (esc) converting [===> ] 1/9\r (no-eol) (esc) getting files [======================================>] 1/1\r (no-eol) (esc) \r (no-eol) (esc) \r (no-eol) (esc) converting [========> ] 2/9\r (no-eol) (esc) getting files [======================================>] 1/1\r (no-eol) (esc) \r (no-eol) (esc) \r (no-eol) (esc) converting [=============> ] 3/9\r (no-eol) (esc) getting files [======================================>] 1/1\r (no-eol) (esc) \r (no-eol) (esc) \r (no-eol) (esc) converting [=================> ] 4/9\r (no-eol) (esc) getting files [======================================>] 1/1\r (no-eol) (esc) \r (no-eol) (esc) \r (no-eol) (esc) converting [======================> ] 5/9\r (no-eol) (esc) getting files [===> ] 1/8\r (no-eol) (esc) getting files [========> ] 2/8\r (no-eol) (esc) getting files [=============> ] 3/8\r (no-eol) (esc) getting files [==================> ] 4/8\r (no-eol) (esc) getting files [=======================> ] 5/8\r (no-eol) (esc) getting files [============================> ] 6/8\r (no-eol) (esc) getting files [=================================> ] 7/8\r (no-eol) (esc) getting files [======================================>] 8/8\r (no-eol) (esc) \r (no-eol) (esc) \r (no-eol) (esc) converting [===========================> ] 6/9\r (no-eol) (esc) getting files [======================================>] 1/1\r (no-eol) (esc) \r (no-eol) (esc) \r (no-eol) (esc) converting [===============================> ] 7/9\r (no-eol) (esc) getting files [======================================>] 1/1\r (no-eol) (esc) \r (no-eol) (esc) \r (no-eol) (esc) converting [====================================> ] 8/9\r (no-eol) (esc) getting files [==================> ] 1/2\r (no-eol) (esc) getting files [======================================>] 2/2\r (no-eol) (esc) \r (no-eol) (esc) initializing destination fullrepo repository scanning source... sorting... converting... 8 add foo 7 change foo 6 add quux 5 add bar 4 add baz 3 Octopus merge 2 change bar 1 change foo 0 Discard change to foo updating bookmarks $ hg up -q -R fullrepo $ glog -R fullrepo @ 9 "Discard change to foo" files: foo |\ | o 8 "change foo" files: foo | | o | 7 "change bar" files: bar |/ o 6 "(octopus merge fixup)" files: |\ | o 5 "Octopus merge" files: baz | |\ o | | 4 "add baz" files: baz | | | +---o 3 "add bar" files: bar | | o | 2 "add quux" files: quux | | | o 1 "change foo" files: foo |/ o 0 "add foo" files: foo $ hg -R fullrepo manifest --debug 245a3b8bc653999c2b22cdabd517ccb47aecafdf 644 bar 354ae8da6e890359ef49ade27b68bbc361f3ca88 644 baz 9277c9cc8dd4576fc01a17939b4351e5ada93466 644 foo 88dfeab657e8cf2cef3dec67b914f49791ae76b1 644 quux $ splitrepo 'octopus merge' 'foo bar baz' % foo bar baz: octopus merge @ 8 "Discard change to foo" files: foo |\ | o 7 "change foo" files: foo | | o | 6 "change bar" files: bar |/ o 5 "(octopus merge fixup)" files: |\ | o 4 "Octopus merge" files: baz | |\ o | | 3 "add baz" files: baz | | | +---o 2 "add bar" files: bar | | | o 1 "change foo" files: foo |/ o 0 "add foo" files: foo 245a3b8bc653999c2b22cdabd517ccb47aecafdf 644 bar 354ae8da6e890359ef49ade27b68bbc361f3ca88 644 baz 9277c9cc8dd4576fc01a17939b4351e5ada93466 644 foo $ splitrepo 'only some parents of an octopus merge; "discard" a head' 'foo baz quux' % foo baz quux: only some parents of an octopus merge; "discard" a head @ 6 "Discard change to foo" files: foo | o 5 "change foo" files: foo | o 4 "Octopus merge" files: |\ | o 3 "add baz" files: baz | | | o 2 "add quux" files: quux | | o | 1 "change foo" files: foo |/ o 0 "add foo" files: foo 354ae8da6e890359ef49ade27b68bbc361f3ca88 644 baz 9277c9cc8dd4576fc01a17939b4351e5ada93466 644 foo 88dfeab657e8cf2cef3dec67b914f49791ae76b1 644 quux test importing git renames and copies $ cd git-repo2 $ git mv foo foo-renamed since bar is not touched in this commit, this copy will not be detected $ cp bar bar-copied $ cp baz baz-copied $ cp baz baz-copied2 $ cp baz ba-copy $ echo baz2 >> baz $ git add bar-copied baz-copied baz-copied2 ba-copy $ commit -a -m 'rename and copy' $ cd .. input validation $ hg convert --config convert.git.similarity=foo --datesort git-repo2 fullrepo abort: convert.git.similarity is not an integer ('foo') [255] $ hg convert --config convert.git.similarity=-1 --datesort git-repo2 fullrepo abort: similarity must be between 0 and 100 [255] $ hg convert --config convert.git.similarity=101 --datesort git-repo2 fullrepo abort: similarity must be between 0 and 100 [255] $ hg -q convert --config convert.git.similarity=100 --datesort git-repo2 fullrepo $ hg -R fullrepo status -C --change master M baz A ba-copy baz A bar-copied A baz-copied baz A baz-copied2 baz A foo-renamed foo R foo Ensure that the modification to the copy source was preserved (there was a bug where if the copy dest was alphabetically prior to the copy source, the copy source took the contents of the copy dest) $ hg cat -r tip fullrepo/baz baz baz2 $ cd git-repo2 $ echo bar2 >> bar $ commit -a -m 'change bar' $ cp bar bar-copied2 $ git add bar-copied2 $ commit -a -m 'copy with no changes' $ cd .. $ hg -q convert --config convert.git.similarity=100 \ > --config convert.git.findcopiesharder=1 --datesort git-repo2 fullrepo $ hg -R fullrepo status -C --change master A bar-copied2 bar test binary conversion (issue1359) $ count=19 $ mkdir git-repo3 $ cd git-repo3 $ git init-db >/dev/null 2>/dev/null $ $PYTHON -c 'file("b", "wb").write("".join([chr(i) for i in range(256)])*16)' $ git add b $ commit -a -m addbinary $ cd .. convert binary file $ hg convert git-repo3 git-repo3-hg initializing destination git-repo3-hg repository scanning source... sorting... converting... 0 addbinary updating bookmarks $ cd git-repo3-hg $ hg up -C 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ $PYTHON -c 'print len(file("b", "rb").read())' 4096 $ cd .. test author vs committer $ mkdir git-repo4 $ cd git-repo4 $ git init-db >/dev/null 2>/dev/null $ echo >> foo $ git add foo $ commit -a -m addfoo $ echo >> foo $ GIT_AUTHOR_NAME="nottest" $ commit -a -m addfoo2 $ cd .. convert author committer $ hg convert git-repo4 git-repo4-hg initializing destination git-repo4-hg repository scanning source... sorting... converting... 1 addfoo 0 addfoo2 updating bookmarks $ hg -R git-repo4-hg log -v changeset: 1:d63e967f93da bookmark: master tag: tip user: nottest <test@example.org> date: Mon Jan 01 00:00:21 2007 +0000 files: foo description: addfoo2 committer: test <test@example.org> changeset: 0:0735477b0224 user: test <test@example.org> date: Mon Jan 01 00:00:20 2007 +0000 files: foo description: addfoo --sourceorder should fail $ hg convert --sourcesort git-repo4 git-repo4-sourcesort-hg initializing destination git-repo4-sourcesort-hg repository abort: --sourcesort is not supported by this data source [255] test converting certain branches $ mkdir git-testrevs $ cd git-testrevs $ git init Initialized empty Git repository in $TESTTMP/git-testrevs/.git/ $ echo a >> a ; git add a > /dev/null; git commit -m 'first' > /dev/null $ echo a >> a ; git add a > /dev/null; git commit -m 'master commit' > /dev/null $ git checkout -b goodbranch 'HEAD^' Switched to a new branch 'goodbranch' $ echo a >> b ; git add b > /dev/null; git commit -m 'good branch commit' > /dev/null $ git checkout -b badbranch 'HEAD^' Switched to a new branch 'badbranch' $ echo a >> c ; git add c > /dev/null; git commit -m 'bad branch commit' > /dev/null $ cd .. $ hg convert git-testrevs hg-testrevs --rev master --rev goodbranch initializing destination hg-testrevs repository scanning source... sorting... converting... 2 first 1 good branch commit 0 master commit updating bookmarks $ cd hg-testrevs $ hg log -G -T '{rev} {bookmarks}' o 2 master | | o 1 goodbranch |/ o 0 $ cd .. test sub modules $ mkdir git-repo5 $ cd git-repo5 $ git init-db >/dev/null 2>/dev/null $ echo 'sub' >> foo $ git add foo $ commit -a -m 'addfoo' $ BASE=`pwd` $ cd .. $ mkdir git-repo6 $ cd git-repo6 $ git init-db >/dev/null 2>/dev/null $ git submodule add ${BASE} >/dev/null 2>/dev/null $ commit -a -m 'addsubmodule' >/dev/null 2>/dev/null test non-tab whitespace .gitmodules $ cat >> .gitmodules <<EOF > [submodule "git-repo5"] > path = git-repo5 > url = git-repo5 > EOF $ git commit -q -a -m "weird white space submodule" $ cd .. $ hg convert git-repo6 hg-repo6 initializing destination hg-repo6 repository scanning source... sorting... converting... 1 addsubmodule 0 weird white space submodule updating bookmarks $ rm -rf hg-repo6 $ cd git-repo6 $ git reset --hard 'HEAD^' > /dev/null test missing .gitmodules $ git submodule add ../git-repo4 >/dev/null 2>/dev/null $ git checkout HEAD .gitmodules $ git rm .gitmodules rm '.gitmodules' $ git commit -q -m "remove .gitmodules" .gitmodules $ git commit -q -m "missing .gitmodules" $ cd .. $ hg convert git-repo6 hg-repo6 --traceback 2>&1 | grep -v "fatal: Path '.gitmodules' does not exist" initializing destination hg-repo6 repository scanning source... sorting... converting... 2 addsubmodule 1 remove .gitmodules 0 missing .gitmodules warning: cannot read submodules config file in * (glob) updating bookmarks $ rm -rf hg-repo6 $ cd git-repo6 $ rm -rf git-repo4 $ git reset --hard 'HEAD^^' > /dev/null $ cd .. test invalid splicemap1 $ cat > splicemap <<EOF > $VALIDID1 > EOF $ hg convert --splicemap splicemap git-repo2 git-repo2-splicemap1-hg initializing destination git-repo2-splicemap1-hg repository abort: syntax error in splicemap(1): child parent1[,parent2] expected [255] test invalid splicemap2 $ cat > splicemap <<EOF > $VALIDID1 $VALIDID2, $VALIDID2, $VALIDID2 > EOF $ hg convert --splicemap splicemap git-repo2 git-repo2-splicemap2-hg initializing destination git-repo2-splicemap2-hg repository abort: syntax error in splicemap(1): child parent1[,parent2] expected [255] test invalid splicemap3 $ cat > splicemap <<EOF > $INVALIDID1 $INVALIDID2 > EOF $ hg convert --splicemap splicemap git-repo2 git-repo2-splicemap3-hg initializing destination git-repo2-splicemap3-hg repository abort: splicemap entry afd12345af is not a valid revision identifier [255] convert sub modules $ hg convert git-repo6 git-repo6-hg initializing destination git-repo6-hg repository scanning source... sorting... converting... 0 addsubmodule updating bookmarks $ hg -R git-repo6-hg log -v changeset: 0:* (glob) bookmark: master tag: tip user: nottest <test@example.org> date: Mon Jan 01 00:00:23 2007 +0000 files: .hgsub .hgsubstate description: addsubmodule committer: test <test@example.org> $ cd git-repo6-hg $ hg up >/dev/null 2>/dev/null $ cat .hgsubstate * git-repo5 (glob) $ cd git-repo5 $ cat foo sub $ cd ../.. make sure rename detection doesn't break removing and adding gitmodules $ cd git-repo6 $ git mv .gitmodules .gitmodules-renamed $ commit -a -m 'rename .gitmodules' $ git mv .gitmodules-renamed .gitmodules $ commit -a -m 'rename .gitmodules back' $ cd .. $ hg --config convert.git.similarity=100 convert -q git-repo6 git-repo6-hg $ hg -R git-repo6-hg log -r 'tip^' -T "{desc|firstline}\n" rename .gitmodules $ hg -R git-repo6-hg status -C --change 'tip^' A .gitmodules-renamed R .hgsub R .hgsubstate $ hg -R git-repo6-hg log -r tip -T "{desc|firstline}\n" rename .gitmodules back $ hg -R git-repo6-hg status -C --change tip A .hgsub A .hgsubstate R .gitmodules-renamed convert the revision removing '.gitmodules' itself (and related submodules) $ cd git-repo6 $ git rm .gitmodules rm '.gitmodules' $ git rm --cached git-repo5 rm 'git-repo5' $ commit -a -m 'remove .gitmodules and submodule git-repo5' $ cd .. $ hg convert -q git-repo6 git-repo6-hg $ hg -R git-repo6-hg tip -T "{desc|firstline}\n" remove .gitmodules and submodule git-repo5 $ hg -R git-repo6-hg tip -T "{file_dels}\n" .hgsub .hgsubstate skip submodules in the conversion $ hg convert -q git-repo6 no-submodules --config convert.git.skipsubmodules=True $ hg -R no-submodules manifest --all .gitmodules-renamed convert using a different remote prefix $ git init git-repo7 Initialized empty Git repository in $TESTTMP/git-repo7/.git/ $ cd git-repo7 TODO: it'd be nice to use (?) lines instead of grep -v to handle the git output variance, but that doesn't currently work in the middle of a block, so do this for now. $ touch a && git add a && git commit -am "commit a" | grep -v changed [master (root-commit) 8ae5f69] commit a Author: nottest <test@example.org> create mode 100644 a $ cd .. $ git clone git-repo7 git-repo7-client Cloning into 'git-repo7-client'... done. $ hg convert --config convert.git.remoteprefix=origin git-repo7-client hg-repo7 initializing destination hg-repo7 repository scanning source... sorting... converting... 0 commit a updating bookmarks $ hg -R hg-repo7 bookmarks master 0:03bf38caa4c6 origin/master 0:03bf38caa4c6 Run convert when the remote branches have changed (there was an old bug where the local convert read branches from the server) $ cd git-repo7 $ echo a >> a $ git commit -q -am "move master forward" $ cd .. $ rm -rf hg-repo7 $ hg convert --config convert.git.remoteprefix=origin git-repo7-client hg-repo7 initializing destination hg-repo7 repository scanning source... sorting... converting... 0 commit a updating bookmarks $ hg -R hg-repo7 bookmarks master 0:03bf38caa4c6 origin/master 0:03bf38caa4c6 damaged git repository tests: In case the hard-coded hashes change, the following commands can be used to list the hashes and their corresponding types in the repository: cd git-repo4/.git/objects find . -type f | cut -c 3- | sed 's_/__' | xargs -n 1 -t git cat-file -t cd ../../.. damage git repository by renaming a commit object $ COMMIT_OBJ=1c/0ce3c5886f83a1d78a7b517cdff5cf9ca17bdd $ mv git-repo4/.git/objects/$COMMIT_OBJ git-repo4/.git/objects/$COMMIT_OBJ.tmp $ hg convert git-repo4 git-repo4-broken-hg 2>&1 | grep 'abort:' abort: cannot read tags from git-repo4/.git $ mv git-repo4/.git/objects/$COMMIT_OBJ.tmp git-repo4/.git/objects/$COMMIT_OBJ damage git repository by renaming a blob object $ BLOB_OBJ=8b/137891791fe96927ad78e64b0aad7bded08bdc $ mv git-repo4/.git/objects/$BLOB_OBJ git-repo4/.git/objects/$BLOB_OBJ.tmp $ hg convert git-repo4 git-repo4-broken-hg 2>&1 | grep 'abort:' abort: cannot read 'blob' object at 8b137891791fe96927ad78e64b0aad7bded08bdc $ mv git-repo4/.git/objects/$BLOB_OBJ.tmp git-repo4/.git/objects/$BLOB_OBJ damage git repository by renaming a tree object $ TREE_OBJ=72/49f083d2a63a41cc737764a86981eb5f3e4635 $ mv git-repo4/.git/objects/$TREE_OBJ git-repo4/.git/objects/$TREE_OBJ.tmp $ hg convert git-repo4 git-repo4-broken-hg 2>&1 | grep 'abort:' abort: cannot read changes in 1c0ce3c5886f83a1d78a7b517cdff5cf9ca17bdd