test-lfs: add tests around corrupted lfs objects
These are mostly tests against file:// based remote stores, because that's what
we have the most control over.
The test uploading a corrupt blob to lfs-test-server demonstrates an overly
broad exception handler in the retry loop. A corrupt blob is actually
transferred in a download, but eventually caught when it is accessed (only after
it leaves the corrupt file in a couple places locally). I don't think we want
to trust random 3rd party implementations, and this would be a problem if there
were a `debuglfsdownload` command that simply cached the files. And given the
cryptic errors, we should probably validate the file hash locally before
uploading, and also after downloading.
# Initial setup
$ cat >> $HGRCPATH << EOF
> [extensions]
> lfs=
> [lfs]
> threshold=1000B
> EOF
$ LONG=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
# Prepare server and enable extension
$ hg init server
$ hg clone -q server client
$ cd client
# Commit small file
$ echo s > smallfile
$ hg commit -Aqm "add small file"
# Commit large file
$ echo $LONG > largefile
$ grep lfs .hg/requires
[1]
$ hg commit --traceback -Aqm "add large file"
$ grep lfs .hg/requires
lfs
# Ensure metadata is stored
$ hg debugdata largefile 0
version https://git-lfs.github.com/spec/v1
oid sha256:f11e77c257047a398492d8d6cb9f6acf3aa7c4384bb23080b43546053e183e4b
size 1501
x-is-binary 0
# Check the blobstore is populated
$ find .hg/store/lfs/objects | sort
.hg/store/lfs/objects
.hg/store/lfs/objects/f1
.hg/store/lfs/objects/f1/1e77c257047a398492d8d6cb9f6acf3aa7c4384bb23080b43546053e183e4b
# Check the blob stored contains the actual contents of the file
$ cat .hg/store/lfs/objects/f1/1e77c257047a398492d8d6cb9f6acf3aa7c4384bb23080b43546053e183e4b
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
# Push changes to the server
$ hg push
pushing to $TESTTMP/server
searching for changes
abort: lfs.url needs to be configured
[255]
$ cat >> $HGRCPATH << EOF
> [lfs]
> url=file:$TESTTMP/dummy-remote/
> EOF
$ hg push -v | egrep -v '^(uncompressed| )'
pushing to $TESTTMP/server
searching for changes
lfs: found f11e77c257047a398492d8d6cb9f6acf3aa7c4384bb23080b43546053e183e4b in the local lfs store
2 changesets found
adding changesets
adding manifests
adding file changes
added 2 changesets with 2 changes to 2 files
# Unknown URL scheme
$ hg push --config lfs.url=ftp://foobar
abort: lfs: unknown url scheme: ftp
[255]
$ cd ../
# Initialize new client (not cloning) and setup extension
$ hg init client2
$ cd client2
$ cat >> .hg/hgrc <<EOF
> [paths]
> default = $TESTTMP/server
> EOF
# Pull from server
$ hg pull default
pulling from $TESTTMP/server
requesting all changes
adding changesets
adding manifests
adding file changes
added 2 changesets with 2 changes to 2 files
new changesets b29ba743f89d:00c137947d30
(run 'hg update' to get a working copy)
# Check the blobstore is not yet populated
$ [ -d .hg/store/lfs/objects ]
[1]
# Update to the last revision containing the large file
$ hg update
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
# Check the blobstore has been populated on update
$ find .hg/store/lfs/objects | sort
.hg/store/lfs/objects
.hg/store/lfs/objects/f1
.hg/store/lfs/objects/f1/1e77c257047a398492d8d6cb9f6acf3aa7c4384bb23080b43546053e183e4b
# Check the contents of the file are fetched from blobstore when requested
$ hg cat -r . largefile
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
# Check the file has been copied in the working copy
$ cat largefile
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
$ cd ..
# Check rename, and switch between large and small files
$ hg init repo3
$ cd repo3
$ cat >> .hg/hgrc << EOF
> [lfs]
> threshold=10B
> EOF
$ echo LONGER-THAN-TEN-BYTES-WILL-TRIGGER-LFS > large
$ echo SHORTER > small
$ hg add . -q
$ hg commit -m 'commit with lfs content'
$ hg mv large l
$ hg mv small s
$ hg commit -m 'renames'
$ echo SHORT > l
$ echo BECOME-LARGER-FROM-SHORTER > s
$ hg commit -m 'large to small, small to large'
$ echo 1 >> l
$ echo 2 >> s
$ hg commit -m 'random modifications'
$ echo RESTORE-TO-BE-LARGE > l
$ echo SHORTER > s
$ hg commit -m 'switch large and small again'
# Test lfs_files template
$ hg log -r 'all()' -T '{rev} {join(lfs_files, ", ")}\n'
0 large
1 l
2 s
3 s
4 l
# Push and pull the above repo
$ hg --cwd .. init repo4
$ hg push ../repo4
pushing to ../repo4
searching for changes
adding changesets
adding manifests
adding file changes
added 5 changesets with 10 changes to 4 files
$ hg --cwd .. init repo5
$ hg --cwd ../repo5 pull ../repo3
pulling from ../repo3
requesting all changes
adding changesets
adding manifests
adding file changes
added 5 changesets with 10 changes to 4 files
new changesets fd47a419c4f7:5adf850972b9
(run 'hg update' to get a working copy)
$ cd ..
# Test clone
$ hg init repo6
$ cd repo6
$ cat >> .hg/hgrc << EOF
> [lfs]
> threshold=30B
> EOF
$ echo LARGE-BECAUSE-IT-IS-MORE-THAN-30-BYTES > large
$ echo SMALL > small
$ hg commit -Aqm 'create a lfs file' large small
$ hg debuglfsupload -r 'all()' -v
lfs: found 8e92251415339ae9b148c8da89ed5ec665905166a1ab11b09dca8fad83344738 in the local lfs store
$ cd ..
$ hg clone repo6 repo7
updating to branch default
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd repo7
$ hg config extensions --debug | grep lfs
$TESTTMP/repo7/.hg/hgrc:*: extensions.lfs= (glob)
$ cat large
LARGE-BECAUSE-IT-IS-MORE-THAN-30-BYTES
$ cat small
SMALL
$ cd ..
$ hg --config extensions.share= share repo7 sharedrepo
updating working directory
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg -R sharedrepo config extensions --debug | grep lfs
$TESTTMP/sharedrepo/.hg/hgrc:*: extensions.lfs= (glob)
# Test rename and status
$ hg init repo8
$ cd repo8
$ cat >> .hg/hgrc << EOF
> [lfs]
> threshold=10B
> EOF
$ echo THIS-IS-LFS-BECAUSE-10-BYTES > a1
$ echo SMALL > a2
$ hg commit -m a -A a1 a2
$ hg status
$ hg mv a1 b1
$ hg mv a2 a1
$ hg mv b1 a2
$ hg commit -m b
$ hg status
>>> with open('a2', 'wb') as f:
... f.write(b'\1\nSTART-WITH-HG-FILELOG-METADATA')
>>> with open('a1', 'wb') as f:
... f.write(b'\1\nMETA\n')
$ hg commit -m meta
$ hg status
$ hg log -T '{rev}: {file_copies} | {file_dels} | {file_adds}\n'
2: | |
1: a1 (a2)a2 (a1) | |
0: | | a1 a2
$ for n in a1 a2; do
> for r in 0 1 2; do
> printf '\n%s @ %s\n' $n $r
> hg debugdata $n $r
> done
> done
a1 @ 0
version https://git-lfs.github.com/spec/v1
oid sha256:5bb8341bee63b3649f222b2215bde37322bea075a30575aa685d8f8d21c77024
size 29
x-is-binary 0
a1 @ 1
\x01 (esc)
copy: a2
copyrev: 50470ad23cf937b1f4b9f80bfe54df38e65b50d9
\x01 (esc)
SMALL
a1 @ 2
\x01 (esc)
\x01 (esc)
\x01 (esc)
META
a2 @ 0
SMALL
a2 @ 1
version https://git-lfs.github.com/spec/v1
oid sha256:5bb8341bee63b3649f222b2215bde37322bea075a30575aa685d8f8d21c77024
size 29
x-hg-copy a1
x-hg-copyrev be23af27908a582af43e5cda209a5a9b319de8d4
x-is-binary 0
a2 @ 2
version https://git-lfs.github.com/spec/v1
oid sha256:876dadc86a8542f9798048f2c47f51dbf8e4359aed883e8ec80c5db825f0d943
size 32
x-is-binary 0
# Verify commit hashes include rename metadata
$ hg log -T '{rev}:{node|short} {desc}\n'
2:0fae949de7fa meta
1:9cd6bdffdac0 b
0:7f96794915f7 a
$ cd ..
# Test bundle
$ hg init repo9
$ cd repo9
$ cat >> .hg/hgrc << EOF
> [lfs]
> threshold=10B
> [diff]
> git=1
> EOF
$ for i in 0 single two three 4; do
> echo 'THIS-IS-LFS-'$i > a
> hg commit -m a-$i -A a
> done
$ hg update 2 -q
$ echo 'THIS-IS-LFS-2-CHILD' > a
$ hg commit -m branching -q
$ hg bundle --base 1 bundle.hg -v
lfs: found 5ab7a3739a5feec94a562d070a14f36dba7cad17e5484a4a89eea8e5f3166888 in the local lfs store
lfs: found a9c7d1cd6ce2b9bbdf46ed9a862845228717b921c089d0d42e3bcaed29eb612e in the local lfs store
lfs: found f693890c49c409ec33673b71e53f297681f76c1166daf33b2ad7ebf8b1d3237e in the local lfs store
lfs: found fda198fea753eb66a252e9856915e1f5cddbe41723bd4b695ece2604ad3c9f75 in the local lfs store
4 changesets found
uncompressed size of bundle content:
* (changelog) (glob)
* (manifests) (glob)
* a (glob)
$ hg --config extensions.strip= strip -r 2 --no-backup --force -q
$ hg -R bundle.hg log -p -T '{rev} {desc}\n' a
5 branching
diff --git a/a b/a
--- a/a
+++ b/a
@@ -1,1 +1,1 @@
-THIS-IS-LFS-two
+THIS-IS-LFS-2-CHILD
4 a-4
diff --git a/a b/a
--- a/a
+++ b/a
@@ -1,1 +1,1 @@
-THIS-IS-LFS-three
+THIS-IS-LFS-4
3 a-three
diff --git a/a b/a
--- a/a
+++ b/a
@@ -1,1 +1,1 @@
-THIS-IS-LFS-two
+THIS-IS-LFS-three
2 a-two
diff --git a/a b/a
--- a/a
+++ b/a
@@ -1,1 +1,1 @@
-THIS-IS-LFS-single
+THIS-IS-LFS-two
1 a-single
diff --git a/a b/a
--- a/a
+++ b/a
@@ -1,1 +1,1 @@
-THIS-IS-LFS-0
+THIS-IS-LFS-single
0 a-0
diff --git a/a b/a
new file mode 100644
--- /dev/null
+++ b/a
@@ -0,0 +1,1 @@
+THIS-IS-LFS-0
$ hg bundle -R bundle.hg --base 1 bundle-again.hg -q
$ hg -R bundle-again.hg log -p -T '{rev} {desc}\n' a
5 branching
diff --git a/a b/a
--- a/a
+++ b/a
@@ -1,1 +1,1 @@
-THIS-IS-LFS-two
+THIS-IS-LFS-2-CHILD
4 a-4
diff --git a/a b/a
--- a/a
+++ b/a
@@ -1,1 +1,1 @@
-THIS-IS-LFS-three
+THIS-IS-LFS-4
3 a-three
diff --git a/a b/a
--- a/a
+++ b/a
@@ -1,1 +1,1 @@
-THIS-IS-LFS-two
+THIS-IS-LFS-three
2 a-two
diff --git a/a b/a
--- a/a
+++ b/a
@@ -1,1 +1,1 @@
-THIS-IS-LFS-single
+THIS-IS-LFS-two
1 a-single
diff --git a/a b/a
--- a/a
+++ b/a
@@ -1,1 +1,1 @@
-THIS-IS-LFS-0
+THIS-IS-LFS-single
0 a-0
diff --git a/a b/a
new file mode 100644
--- /dev/null
+++ b/a
@@ -0,0 +1,1 @@
+THIS-IS-LFS-0
$ cd ..
# Test isbinary
$ hg init repo10
$ cd repo10
$ cat >> .hg/hgrc << EOF
> [extensions]
> lfs=
> [lfs]
> threshold=1
> EOF
$ $PYTHON <<'EOF'
> def write(path, content):
> with open(path, 'wb') as f:
> f.write(content)
> write('a', b'\0\0')
> write('b', b'\1\n')
> write('c', b'\1\n\0')
> write('d', b'xx')
> EOF
$ hg add a b c d
$ hg diff --stat
a | Bin
b | 1 +
c | Bin
d | 1 +
4 files changed, 2 insertions(+), 0 deletions(-)
$ hg commit -m binarytest
$ cat > $TESTTMP/dumpbinary.py << EOF
> def reposetup(ui, repo):
> for n in 'abcd':
> ui.write(('%s: binary=%s\n') % (n, repo['.'][n].isbinary()))
> EOF
$ hg --config extensions.dumpbinary=$TESTTMP/dumpbinary.py id --trace
a: binary=True
b: binary=False
c: binary=True
d: binary=False
b55353847f02 tip
$ cd ..
# Test fctx.cmp fastpath - diff without LFS blobs
$ hg init repo11
$ cd repo11
$ cat >> .hg/hgrc <<EOF
> [lfs]
> threshold=1
> EOF
$ cat > ../patch.diff <<EOF
> # HG changeset patch
> 2
>
> diff --git a/a b/a
> old mode 100644
> new mode 100755
> EOF
$ for i in 1 2 3; do
> cp ../repo10/a a
> if [ $i = 3 ]; then
> # make a content-only change
> hg import -q --bypass ../patch.diff
> hg update -q
> rm ../patch.diff
> else
> echo $i >> a
> hg commit -m $i -A a
> fi
> done
$ [ -d .hg/store/lfs/objects ]
$ cd ..
$ hg clone repo11 repo12 --noupdate
$ cd repo12
$ hg log --removed -p a -T '{desc}\n' --config diff.nobinary=1 --git
2
diff --git a/a b/a
old mode 100644
new mode 100755
2
diff --git a/a b/a
Binary file a has changed
1
diff --git a/a b/a
new file mode 100644
Binary file a has changed
$ [ -d .hg/store/lfs/objects ]
[1]
$ cd ..
# Verify the repos
$ cat > $TESTTMP/dumpflog.py << EOF
> # print raw revision sizes, flags, and hashes for certain files
> import hashlib
> from mercurial import revlog
> from mercurial.node import short
> def hash(rawtext):
> h = hashlib.sha512()
> h.update(rawtext)
> return h.hexdigest()[:4]
> def reposetup(ui, repo):
> # these 2 files are interesting
> for name in ['l', 's']:
> fl = repo.file(name)
> if len(fl) == 0:
> continue
> sizes = [revlog.revlog.rawsize(fl, i) for i in fl]
> texts = [fl.revision(i, raw=True) for i in fl]
> flags = [int(fl.flags(i)) for i in fl]
> hashes = [hash(t) for t in texts]
> print(' %s: rawsizes=%r flags=%r hashes=%r'
> % (name, sizes, flags, hashes))
> EOF
$ for i in client client2 server repo3 repo4 repo5 repo6 repo7 repo8 repo9 \
> repo10; do
> echo 'repo:' $i
> hg --cwd $i verify --config extensions.dumpflog=$TESTTMP/dumpflog.py -q
> done
repo: client
repo: client2
repo: server
repo: repo3
l: rawsizes=[211, 6, 8, 141] flags=[8192, 0, 0, 8192] hashes=['d2b8', '948c', 'cc88', '724d']
s: rawsizes=[74, 141, 141, 8] flags=[0, 8192, 8192, 0] hashes=['3c80', 'fce0', '874a', '826b']
repo: repo4
l: rawsizes=[211, 6, 8, 141] flags=[8192, 0, 0, 8192] hashes=['d2b8', '948c', 'cc88', '724d']
s: rawsizes=[74, 141, 141, 8] flags=[0, 8192, 8192, 0] hashes=['3c80', 'fce0', '874a', '826b']
repo: repo5
l: rawsizes=[211, 6, 8, 141] flags=[8192, 0, 0, 8192] hashes=['d2b8', '948c', 'cc88', '724d']
s: rawsizes=[74, 141, 141, 8] flags=[0, 8192, 8192, 0] hashes=['3c80', 'fce0', '874a', '826b']
repo: repo6
repo: repo7
repo: repo8
repo: repo9
repo: repo10
repo12 doesn't have any cached lfs files and its source never pushed its
files. Therefore, the files don't exist in the remote store. Use the files in
the user cache.
$ test -d $TESTTMP/repo12/.hg/store/lfs/objects
[1]
$ hg --config extensions.share= share repo12 repo13
updating working directory
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg -R repo13 -q verify
$ hg clone repo12 repo14
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg -R repo14 -q verify
If the source repo doesn't have the blob (maybe it was pulled or cloned with
--noupdate), the blob is still accessible via the global cache to send to the
remote store.
$ rm -rf $TESTTMP/repo14/.hg/store/lfs
$ hg init repo15
$ hg -R repo14 push repo15
pushing to repo15
searching for changes
adding changesets
adding manifests
adding file changes
added 3 changesets with 2 changes to 1 files
$ hg -R repo14 -q verify
Test damaged file scenarios. (This also damages the usercache because of the
hardlinks.)
$ echo 'damage' >> repo5/.hg/store/lfs/objects/66/100b384bf761271b407d79fc30cdd0554f3b2c5d944836e936d584b88ce88e
Repo with damaged lfs objects in any revision will fail verification.
$ hg -R repo5 verify
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
l@1: unpacking 46a2f24864bc: integrity check failed on data/l.i:0
large@0: unpacking 2c531e0992ff: integrity check failed on data/large.i:0
4 files, 5 changesets, 10 total revisions
2 integrity errors encountered!
(first damaged changeset appears to be 0)
[1]
Updates work after cloning a damaged repo, if the damaged lfs objects aren't in
the update destination. Those objects won't be added to the new repo's store
because they aren't accessed.
$ hg clone -v repo5 fromcorrupt
updating to branch default
resolving manifests
getting l
lfs: found 22f66a3fc0b9bf3f012c814303995ec07099b3a9ce02a7af84b5970811074a3b in the usercache
getting s
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ test -f fromcorrupt/.hg/store/lfs/objects/66/100b384bf761271b407d79fc30cdd0554f3b2c5d944836e936d584b88ce88e
[1]
Verify will copy/link all lfs objects into the local store that aren't already
present. Bypass the corrupted usercache to show that verify works when fed by
the (uncorrupted) remote store.
$ hg -R fromcorrupt --config lfs.usercache=emptycache verify -v
repository uses revlog format 1
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
lfs: adding 66100b384bf761271b407d79fc30cdd0554f3b2c5d944836e936d584b88ce88e to the usercache
lfs: found 66100b384bf761271b407d79fc30cdd0554f3b2c5d944836e936d584b88ce88e in the local lfs store
lfs: found 22f66a3fc0b9bf3f012c814303995ec07099b3a9ce02a7af84b5970811074a3b in the local lfs store
lfs: found 66100b384bf761271b407d79fc30cdd0554f3b2c5d944836e936d584b88ce88e in the local lfs store
lfs: adding 89b6070915a3d573ff3599d1cda305bc5e38549b15c4847ab034169da66e1ca8 to the usercache
lfs: found 89b6070915a3d573ff3599d1cda305bc5e38549b15c4847ab034169da66e1ca8 in the local lfs store
lfs: adding b1a6ea88da0017a0e77db139a54618986e9a2489bee24af9fe596de9daac498c to the usercache
lfs: found b1a6ea88da0017a0e77db139a54618986e9a2489bee24af9fe596de9daac498c in the local lfs store
4 files, 5 changesets, 10 total revisions
BUG: Verify will copy/link a corrupted file from the usercache into the local
store, and poison it. (The verify with a good remote now fails.)
$ rm -r fromcorrupt/.hg/store/lfs/objects/66/100b384bf761271b407d79fc30cdd0554f3b2c5d944836e936d584b88ce88e
$ hg -R fromcorrupt verify -v
repository uses revlog format 1
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
lfs: found 66100b384bf761271b407d79fc30cdd0554f3b2c5d944836e936d584b88ce88e in the usercache
l@1: unpacking 46a2f24864bc: integrity check failed on data/l.i:0
lfs: found 22f66a3fc0b9bf3f012c814303995ec07099b3a9ce02a7af84b5970811074a3b in the local lfs store
lfs: found 66100b384bf761271b407d79fc30cdd0554f3b2c5d944836e936d584b88ce88e in the local lfs store
large@0: unpacking 2c531e0992ff: integrity check failed on data/large.i:0
lfs: found 89b6070915a3d573ff3599d1cda305bc5e38549b15c4847ab034169da66e1ca8 in the local lfs store
lfs: found b1a6ea88da0017a0e77db139a54618986e9a2489bee24af9fe596de9daac498c in the local lfs store
4 files, 5 changesets, 10 total revisions
2 integrity errors encountered!
(first damaged changeset appears to be 0)
[1]
$ hg -R fromcorrupt --config lfs.usercache=emptycache verify -v
repository uses revlog format 1
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
lfs: found 66100b384bf761271b407d79fc30cdd0554f3b2c5d944836e936d584b88ce88e in the local lfs store
l@1: unpacking 46a2f24864bc: integrity check failed on data/l.i:0
lfs: found 22f66a3fc0b9bf3f012c814303995ec07099b3a9ce02a7af84b5970811074a3b in the local lfs store
lfs: found 66100b384bf761271b407d79fc30cdd0554f3b2c5d944836e936d584b88ce88e in the local lfs store
large@0: unpacking 2c531e0992ff: integrity check failed on data/large.i:0
lfs: found 89b6070915a3d573ff3599d1cda305bc5e38549b15c4847ab034169da66e1ca8 in the local lfs store
lfs: found b1a6ea88da0017a0e77db139a54618986e9a2489bee24af9fe596de9daac498c in the local lfs store
4 files, 5 changesets, 10 total revisions
2 integrity errors encountered!
(first damaged changeset appears to be 0)
[1]
Damaging a file required by the update destination fails the update.
$ echo 'damage' >> $TESTTMP/dummy-remote/22/f66a3fc0b9bf3f012c814303995ec07099b3a9ce02a7af84b5970811074a3b
$ hg --config lfs.usercache=emptycache clone -v repo5 fromcorrupt2
updating to branch default
resolving manifests
getting l
lfs: adding 22f66a3fc0b9bf3f012c814303995ec07099b3a9ce02a7af84b5970811074a3b to the usercache
lfs: found 22f66a3fc0b9bf3f012c814303995ec07099b3a9ce02a7af84b5970811074a3b in the local lfs store
abort: integrity check failed on data/l.i:3!
[255]
BUG: A corrupted lfs blob either shouldn't be created after a transfer from a
file://remotestore, or it shouldn't be left behind.
$ cat emptycache/22/f66a3fc0b9bf3f012c814303995ec07099b3a9ce02a7af84b5970811074a3b | $TESTDIR/f --sha256
sha256=40f67c7e91d554db4bc500f8f62c2e40f9f61daa5b62388e577bbae26f5396ff
$ cat fromcorrupt2/.hg/store/lfs/objects/22/f66a3fc0b9bf3f012c814303995ec07099b3a9ce02a7af84b5970811074a3b | $TESTDIR/f --sha256
sha256=40f67c7e91d554db4bc500f8f62c2e40f9f61daa5b62388e577bbae26f5396ff
$ hg -R fromcorrupt2 verify
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
l@1: unpacking 46a2f24864bc: integrity check failed on data/l.i:0
l@4: unpacking 6f1ff1f39c11: integrity check failed on data/l.i:3
large@0: unpacking 2c531e0992ff: integrity check failed on data/large.i:0
4 files, 5 changesets, 10 total revisions
3 integrity errors encountered!
(first damaged changeset appears to be 0)
[1]
BUG: push will happily send corrupt files upstream. (The alternate dummy remote
avoids the corrupt lfs object in the original remote.)
$ mkdir $TESTTMP/dummy-remote2
$ hg init dest
$ hg -R fromcorrupt2 --config lfs.url=file:///$TESTTMP/dummy-remote2 push -v dest
pushing to dest
searching for changes
lfs: found 22f66a3fc0b9bf3f012c814303995ec07099b3a9ce02a7af84b5970811074a3b in the local lfs store
lfs: found 89b6070915a3d573ff3599d1cda305bc5e38549b15c4847ab034169da66e1ca8 in the local lfs store
lfs: found b1a6ea88da0017a0e77db139a54618986e9a2489bee24af9fe596de9daac498c in the local lfs store
lfs: found 66100b384bf761271b407d79fc30cdd0554f3b2c5d944836e936d584b88ce88e in the local lfs store
5 changesets found
uncompressed size of bundle content:
997 (changelog)
1032 (manifests)
841 l
272 large
788 s
139 small
adding changesets
adding manifests
adding file changes
added 5 changesets with 10 changes to 4 files
$ hg -R fromcorrupt2 --config lfs.url=file:///$TESTTMP/dummy-remote2 verify -v
repository uses revlog format 1
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
lfs: found 66100b384bf761271b407d79fc30cdd0554f3b2c5d944836e936d584b88ce88e in the local lfs store
l@1: unpacking 46a2f24864bc: integrity check failed on data/l.i:0
lfs: found 22f66a3fc0b9bf3f012c814303995ec07099b3a9ce02a7af84b5970811074a3b in the local lfs store
l@4: unpacking 6f1ff1f39c11: integrity check failed on data/l.i:3
lfs: found 66100b384bf761271b407d79fc30cdd0554f3b2c5d944836e936d584b88ce88e in the local lfs store
large@0: unpacking 2c531e0992ff: integrity check failed on data/large.i:0
lfs: found 89b6070915a3d573ff3599d1cda305bc5e38549b15c4847ab034169da66e1ca8 in the local lfs store
lfs: found b1a6ea88da0017a0e77db139a54618986e9a2489bee24af9fe596de9daac498c in the local lfs store
4 files, 5 changesets, 10 total revisions
3 integrity errors encountered!
(first damaged changeset appears to be 0)
[1]
$ cat $TESTTMP/dummy-remote2/22/f66a3fc0b9bf3f012c814303995ec07099b3a9ce02a7af84b5970811074a3b | $TESTDIR/f --sha256
sha256=40f67c7e91d554db4bc500f8f62c2e40f9f61daa5b62388e577bbae26f5396ff
$ cat fromcorrupt2/.hg/store/lfs/objects/22/f66a3fc0b9bf3f012c814303995ec07099b3a9ce02a7af84b5970811074a3b | $TESTDIR/f --sha256
sha256=40f67c7e91d554db4bc500f8f62c2e40f9f61daa5b62388e577bbae26f5396ff
$ cat $TESTTMP/dummy-remote2/66/100b384bf761271b407d79fc30cdd0554f3b2c5d944836e936d584b88ce88e
LONGER-THAN-TEN-BYTES-WILL-TRIGGER-LFS
damage
$ cat $TESTTMP/dummy-remote2/22/f66a3fc0b9bf3f012c814303995ec07099b3a9ce02a7af84b5970811074a3b
RESTORE-TO-BE-LARGE
damage
Accessing a corrupt file will complain
$ hg --cwd fromcorrupt2 cat -r 0 large
abort: integrity check failed on data/large.i:0!
[255]
lfs -> normal -> lfs round trip conversions are possible. The threshold for the
lfs destination is specified here because it was originally listed in the local
.hgrc, and the global one is too high to trigger lfs usage. For lfs -> normal,
there's no 'lfs' destination repo requirement. For normal -> lfs, there is.
XXX: There's not a great way to ensure that the conversion to normal files
actually converts _everything_ to normal. The extension needs to be loaded for
the source, but there's no way to disable it for the destination. The best that
can be done is to raise the threshold so that lfs isn't used on the destination.
It doesn't like using '!' to unset the value on the command line.
$ hg --config extensions.convert= --config lfs.threshold=1000M \
> convert repo8 convert_normal
initializing destination convert_normal repository
scanning source...
sorting...
converting...
2 a
1 b
0 meta
$ grep 'lfs' convert_normal/.hg/requires
[1]
$ hg --cwd convert_normal debugdata a1 0
THIS-IS-LFS-BECAUSE-10-BYTES
$ hg --config extensions.convert= --config lfs.threshold=10B \
> convert convert_normal convert_lfs
initializing destination convert_lfs repository
scanning source...
sorting...
converting...
2 a
1 b
0 meta
$ hg --cwd convert_lfs debugdata a1 0
version https://git-lfs.github.com/spec/v1
oid sha256:5bb8341bee63b3649f222b2215bde37322bea075a30575aa685d8f8d21c77024
size 29
x-is-binary 0
$ grep 'lfs' convert_lfs/.hg/requires
lfs
This convert is trickier, because it contains deleted files (via `hg mv`)
$ hg --config extensions.convert= --config lfs.threshold=1000M \
> convert repo3 convert_normal2
initializing destination convert_normal2 repository
scanning source...
sorting...
converting...
4 commit with lfs content
3 renames
2 large to small, small to large
1 random modifications
0 switch large and small again
$ grep 'lfs' convert_normal2/.hg/requires
[1]
$ hg --cwd convert_normal2 debugdata large 0
LONGER-THAN-TEN-BYTES-WILL-TRIGGER-LFS
$ hg --config extensions.convert= --config lfs.threshold=10B \
> convert convert_normal2 convert_lfs2
initializing destination convert_lfs2 repository
scanning source...
sorting...
converting...
4 commit with lfs content
3 renames
2 large to small, small to large
1 random modifications
0 switch large and small again
$ grep 'lfs' convert_lfs2/.hg/requires
lfs
$ hg --cwd convert_lfs2 debugdata large 0
version https://git-lfs.github.com/spec/v1
oid sha256:66100b384bf761271b407d79fc30cdd0554f3b2c5d944836e936d584b88ce88e
size 39
x-is-binary 0
$ hg -R convert_lfs2 config --debug extensions | grep lfs
$TESTTMP/convert_lfs2/.hg/hgrc:*: extensions.lfs= (glob)
Committing deleted files works:
$ hg init $TESTTMP/repo-del
$ cd $TESTTMP/repo-del
$ echo 1 > A
$ hg commit -m 'add A' -A A
$ hg rm A
$ hg commit -m 'rm A'