log: speed up single file log with hidden revs (
issue4747)
On repos with lots of heads, the filelog() code could spend several
minutes decompressing manifests. This change instead tries to
efficiently scan the changelog for candidates and decompress as few
manifests as possible. This is a regression introduced in 3.3 by the
linkrev adjustment code. Prior to that, filelog was nearly instant.
For the repo in the bug report, this improves time of a simple log
command from ~3 minutes to ~.5 seconds, a 360x speedup.
For the main Mercurial repo, a log of commands.py slows down from
1.14s to 1.45s, a 27% slowdown. This is still faster than the file()
revset, which takes 2.1 seconds.
This file focuses mainly on updating largefiles in the working
directory (and ".hg/largefiles/dirstate")
$ cat >> $HGRCPATH <<EOF
> [ui]
> merge = internal:fail
> [extensions]
> largefiles =
> EOF
$ hg init repo
$ cd repo
$ echo large1 > large1
$ echo large2 > large2
$ hg add --large large1 large2
$ echo normal1 > normal1
$ hg add normal1
$ hg commit -m '#0'
$ echo 'large1 in #1' > large1
$ echo 'normal1 in #1' > normal1
$ hg commit -m '#1'
$ hg extdiff -r '.^' --config extensions.extdiff=
diff -Npru repo.0d9d9b8dc9a3/.hglf/large1 repo/.hglf/large1
--- repo.0d9d9b8dc9a3/.hglf/large1 * (glob)
+++ repo/.hglf/large1 * (glob)
@@ -1 +1 @@
-4669e532d5b2c093a78eca010077e708a071bb64
+58e24f733a964da346e2407a2bee99d9001184f5
diff -Npru repo.0d9d9b8dc9a3/normal1 repo/normal1
--- repo.0d9d9b8dc9a3/normal1 * (glob)
+++ repo/normal1 * (glob)
@@ -1 +1 @@
-normal1
+normal1 in #1
[1]
$ hg update -q -C 0
$ echo 'large2 in #2' > large2
$ hg commit -m '#2'
created new head
Test that update also updates the lfdirstate of 'unsure' largefiles after
hashing them:
The previous operations will usually have left us with largefiles with a mtime
within the same second as the dirstate was written.
The lfdirstate entries will thus have been written with an invalidated/unset
mtime to make sure further changes within the same second is detected.
We will however occasionally be "lucky" and get a tick between writing
largefiles and writing dirstate so we get valid lfdirstate timestamps. The
following verification is thus disabled but can be verified manually.
#if false
$ hg debugdirstate --large --nodate
n 644 7 unset large1
n 644 13 unset large2
#endif
Wait to make sure we get a tick so the mtime of the largefiles become valid.
$ sleep 1
A linear merge will update standins before performing the actual merge. It will
do a lfdirstate status walk and find 'unset'/'unsure' files, hash them, and
update the corresponding standins.
Verify that it actually marks the clean files as clean in lfdirstate so
we don't have to hash them again next time we update.
$ hg up
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg debugdirstate --large --nodate
n 644 7 set large1
n 644 13 set large2
Test that lfdirstate keeps track of last modification of largefiles and
prevents unnecessary hashing of content - also after linear/noop update
$ sleep 1
$ hg st
$ hg debugdirstate --large --nodate
n 644 7 set large1
n 644 13 set large2
$ hg up
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg debugdirstate --large --nodate
n 644 7 set large1
n 644 13 set large2
Test that "hg merge" updates largefiles from "other" correctly
(getting largefiles from "other" normally)
$ hg status -A large1
C large1
$ cat large1
large1
$ cat .hglf/large1
4669e532d5b2c093a78eca010077e708a071bb64
$ hg merge --config debug.dirstate.delaywrite=2
getting changed largefiles
1 largefiles updated, 0 removed
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg status -A large1
M large1
$ cat large1
large1 in #1
$ cat .hglf/large1
58e24f733a964da346e2407a2bee99d9001184f5
$ hg diff -c 1 --nodates .hglf/large1 | grep '^[+-][0-9a-z]'
-4669e532d5b2c093a78eca010077e708a071bb64
+58e24f733a964da346e2407a2bee99d9001184f5
(getting largefiles from "other" via conflict prompt)
$ hg update -q -C 2
$ echo 'large1 in #3' > large1
$ echo 'normal1 in #3' > normal1
$ hg commit -m '#3'
$ cat .hglf/large1
e5bb990443d6a92aaf7223813720f7566c9dd05b
$ hg merge --config debug.dirstate.delaywrite=2 --config ui.interactive=True <<EOF
> o
> EOF
largefile large1 has a merge conflict
ancestor was 4669e532d5b2c093a78eca010077e708a071bb64
keep (l)ocal e5bb990443d6a92aaf7223813720f7566c9dd05b or
take (o)ther 58e24f733a964da346e2407a2bee99d9001184f5? o
merging normal1
warning: conflicts while merging normal1! (edit, then use 'hg resolve --mark')
getting changed largefiles
1 largefiles updated, 0 removed
0 files updated, 1 files merged, 0 files removed, 1 files unresolved
use 'hg resolve' to retry unresolved file merges or 'hg update -C .' to abandon
[1]
$ hg status -A large1
M large1
$ cat large1
large1 in #1
$ cat .hglf/large1
58e24f733a964da346e2407a2bee99d9001184f5
(merge non-existing largefiles from "other" via conflict prompt -
make sure the following commit doesn't abort in a confusing way when trying to
mark the non-existing file as normal in lfdirstate)
$ mv .hg/largefiles/58e24f733a964da346e2407a2bee99d9001184f5 .
$ hg update -q -C 3
$ hg merge --config largefiles.usercache=not --config debug.dirstate.delaywrite=2 --tool :local --config ui.interactive=True <<EOF
> o
> EOF
largefile large1 has a merge conflict
ancestor was 4669e532d5b2c093a78eca010077e708a071bb64
keep (l)ocal e5bb990443d6a92aaf7223813720f7566c9dd05b or
take (o)ther 58e24f733a964da346e2407a2bee99d9001184f5? o
getting changed largefiles
large1: largefile 58e24f733a964da346e2407a2bee99d9001184f5 not available from file:/*/$TESTTMP/repo (glob)
0 largefiles updated, 0 removed
0 files updated, 2 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg commit -m '1-2-3 testing' --config largefiles.usercache=not
large1: largefile 58e24f733a964da346e2407a2bee99d9001184f5 not available from local store
$ hg up -C . --config largefiles.usercache=not
getting changed largefiles
large1: largefile 58e24f733a964da346e2407a2bee99d9001184f5 not available from file:/*/$TESTTMP/repo (glob)
0 largefiles updated, 0 removed
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg st large1
! large1
$ hg rollback -q
$ mv 58e24f733a964da346e2407a2bee99d9001184f5 .hg/largefiles/
Test that "hg revert -r REV" updates largefiles from "REV" correctly
$ hg update -q -C 3
$ hg status -A large1
C large1
$ cat large1
large1 in #3
$ cat .hglf/large1
e5bb990443d6a92aaf7223813720f7566c9dd05b
$ hg diff -c 1 --nodates .hglf/large1 | grep '^[+-][0-9a-z]'
-4669e532d5b2c093a78eca010077e708a071bb64
+58e24f733a964da346e2407a2bee99d9001184f5
$ hg revert --no-backup -r 1 --config debug.dirstate.delaywrite=2 large1
$ hg status -A large1
M large1
$ cat large1
large1 in #1
$ cat .hglf/large1
58e24f733a964da346e2407a2bee99d9001184f5
Test that "hg rollback" restores status of largefiles correctly
$ hg update -C -q
$ hg remove large1
$ test -f .hglf/large1
[1]
$ hg forget large2
$ test -f .hglf/large2
[1]
$ echo largeX > largeX
$ hg add --large largeX
$ cat .hglf/largeX
$ hg commit -m 'will be rollback-ed soon'
$ echo largeY > largeY
$ hg add --large largeY
#if windows
$ hg status -A large1
large1: * (glob)
#else
$ hg status -A large1
large1: No such file or directory
#endif
$ hg status -A large2
? large2
$ hg status -A largeX
C largeX
$ hg status -A largeY
A largeY
$ hg rollback
repository tip rolled back to revision 3 (undo commit)
working directory now based on revision 3
$ hg status -A large1
R large1
$ test -f .hglf/large1
[1]
$ hg status -A large2
R large2
$ test -f .hglf/large2
[1]
$ hg status -A largeX
A largeX
$ cat .hglf/largeX
$ hg status -A largeY
? largeY
$ test -f .hglf/largeY
[1]
Test that "hg rollback" restores standins correctly
$ hg commit -m 'will be rollback-ed soon'
$ hg update -q -C 2
$ cat large1
large1
$ cat .hglf/large1
4669e532d5b2c093a78eca010077e708a071bb64
$ cat large2
large2 in #2
$ cat .hglf/large2
3cfce6277e7668985707b6887ce56f9f62f6ccd9
$ hg rollback -q -f
$ cat large1
large1
$ cat .hglf/large1
4669e532d5b2c093a78eca010077e708a071bb64
$ cat large2
large2 in #2
$ cat .hglf/large2
3cfce6277e7668985707b6887ce56f9f62f6ccd9
(rollback the parent of the working directory, when the parent of it
is not branch-tip)
$ hg update -q -C 1
$ cat .hglf/large1
58e24f733a964da346e2407a2bee99d9001184f5
$ cat .hglf/large2
1deebade43c8c498a3c8daddac0244dc55d1331d
$ echo normalX > normalX
$ hg add normalX
$ hg commit -m 'will be rollback-ed soon'
$ hg rollback -q
$ cat .hglf/large1
58e24f733a964da346e2407a2bee99d9001184f5
$ cat .hglf/large2
1deebade43c8c498a3c8daddac0244dc55d1331d
Test that "hg status" shows status of largefiles correctly just after
automated commit like rebase/transplant
$ cat >> .hg/hgrc <<EOF
> [extensions]
> rebase =
> strip =
> transplant =
> EOF
$ hg update -q -C 1
$ hg remove large1
$ echo largeX > largeX
$ hg add --large largeX
$ hg commit -m '#4'
$ hg rebase -s 1 -d 2 --keep
rebasing 1:72518492caa6 "#1"
rebasing 4:07d6153b5c04 "#4" (tip)
#if windows
$ hg status -A large1
large1: * (glob)
#else
$ hg status -A large1
large1: No such file or directory
#endif
$ hg status -A largeX
C largeX
$ hg strip -q 5
$ hg update -q -C 2
$ hg transplant -q 1 4
#if windows
$ hg status -A large1
large1: * (glob)
#else
$ hg status -A large1
large1: No such file or directory
#endif
$ hg status -A largeX
C largeX
$ hg strip -q 5
$ hg update -q -C 2
$ hg transplant -q --merge 1 --merge 4
#if windows
$ hg status -A large1
large1: * (glob)
#else
$ hg status -A large1
large1: No such file or directory
#endif
$ hg status -A largeX
C largeX
$ hg strip -q 5
Test that linear merge can detect modification (and conflict) correctly
(linear merge without conflict)
$ echo 'large2 for linear merge (no conflict)' > large2
$ hg update 3 --config debug.dirstate.delaywrite=2
getting changed largefiles
1 largefiles updated, 0 removed
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg status -A large2
M large2
$ cat large2
large2 for linear merge (no conflict)
$ cat .hglf/large2
9c4bf8f1b33536d6e5f89447e10620cfe52ea710
(linear merge with conflict, choosing "other")
$ hg update -q -C 2
$ echo 'large1 for linear merge (conflict)' > large1
$ hg update 3 --config ui.interactive=True <<EOF
> o
> EOF
largefile large1 has a merge conflict
ancestor was 4669e532d5b2c093a78eca010077e708a071bb64
keep (l)ocal ba94c2efe5b7c5e0af8d189295ce00553b0612b7 or
take (o)ther e5bb990443d6a92aaf7223813720f7566c9dd05b? o
getting changed largefiles
1 largefiles updated, 0 removed
1 files updated, 1 files merged, 0 files removed, 0 files unresolved
$ hg status -A large1
C large1
$ cat large1
large1 in #3
$ cat .hglf/large1
e5bb990443d6a92aaf7223813720f7566c9dd05b
(linear merge with conflict, choosing "local")
$ hg update -q -C 2
$ echo 'large1 for linear merge (conflict)' > large1
$ hg update 3 --config debug.dirstate.delaywrite=2
largefile large1 has a merge conflict
ancestor was 4669e532d5b2c093a78eca010077e708a071bb64
keep (l)ocal ba94c2efe5b7c5e0af8d189295ce00553b0612b7 or
take (o)ther e5bb990443d6a92aaf7223813720f7566c9dd05b? l
1 files updated, 1 files merged, 0 files removed, 0 files unresolved
$ hg status -A large1
M large1
$ cat large1
large1 for linear merge (conflict)
$ cat .hglf/large1
ba94c2efe5b7c5e0af8d189295ce00553b0612b7
Test a linear merge to a revision containing same-name normal file
$ hg update -q -C 3
$ hg remove large2
$ echo 'large2 as normal file' > large2
$ hg add large2
$ echo 'large3 as normal file' > large3
$ hg add large3
$ hg commit -m '#5'
$ hg manifest
.hglf/large1
large2
large3
normal1
(modified largefile is already switched to normal)
$ hg update -q -C 2
$ echo 'modified large2 for linear merge' > large2
$ hg update -q 5
remote turned local largefile large2 into a normal file
keep (l)argefile or use (n)ormal file? l
$ hg debugdirstate --nodates | grep large2
a 0 -1 unset .hglf/large2
r 0 0 set large2
$ hg status -A large2
A large2
$ cat large2
modified large2 for linear merge
(added largefile is already committed as normal)
$ hg update -q -C 2
$ echo 'large3 as large file for linear merge' > large3
$ hg add --large large3
$ hg update -q 5
remote turned local largefile large3 into a normal file
keep (l)argefile or use (n)ormal file? l
$ hg debugdirstate --nodates | grep large3
a 0 -1 unset .hglf/large3
r 0 0 set large3
$ hg status -A large3
A large3
$ cat large3
large3 as large file for linear merge
$ rm -f large3 .hglf/large3
Test that the internal linear merging works correctly
(both heads are stripped to keep pairing of revision number and commit log)
$ hg update -q -C 2
$ hg strip 3 4
saved backup bundle to $TESTTMP/repo/.hg/strip-backup/9530e27857f7-2e7b195d-backup.hg (glob)
$ mv .hg/strip-backup/9530e27857f7-2e7b195d-backup.hg $TESTTMP
(internal linear merging at "hg pull --update")
$ echo 'large1 for linear merge (conflict)' > large1
$ echo 'large2 for linear merge (conflict with normal file)' > large2
$ hg pull --update --config debug.dirstate.delaywrite=2 $TESTTMP/9530e27857f7-2e7b195d-backup.hg
pulling from $TESTTMP/9530e27857f7-2e7b195d-backup.hg (glob)
searching for changes
adding changesets
adding manifests
adding file changes
added 3 changesets with 5 changes to 5 files
remote turned local largefile large2 into a normal file
keep (l)argefile or use (n)ormal file? l
largefile large1 has a merge conflict
ancestor was 4669e532d5b2c093a78eca010077e708a071bb64
keep (l)ocal ba94c2efe5b7c5e0af8d189295ce00553b0612b7 or
take (o)ther e5bb990443d6a92aaf7223813720f7566c9dd05b? l
2 files updated, 1 files merged, 0 files removed, 0 files unresolved
$ hg status -A large1
M large1
$ cat large1
large1 for linear merge (conflict)
$ cat .hglf/large1
ba94c2efe5b7c5e0af8d189295ce00553b0612b7
$ hg status -A large2
A large2
$ cat large2
large2 for linear merge (conflict with normal file)
$ cat .hglf/large2
d7591fe9be0f6227d90bddf3e4f52ff41fc1f544
(internal linear merging at "hg unbundle --update")
$ hg update -q -C 2
$ hg rollback -q
$ echo 'large1 for linear merge (conflict)' > large1
$ echo 'large2 for linear merge (conflict with normal file)' > large2
$ hg unbundle --update --config debug.dirstate.delaywrite=2 $TESTTMP/9530e27857f7-2e7b195d-backup.hg
adding changesets
adding manifests
adding file changes
added 3 changesets with 5 changes to 5 files
remote turned local largefile large2 into a normal file
keep (l)argefile or use (n)ormal file? l
largefile large1 has a merge conflict
ancestor was 4669e532d5b2c093a78eca010077e708a071bb64
keep (l)ocal ba94c2efe5b7c5e0af8d189295ce00553b0612b7 or
take (o)ther e5bb990443d6a92aaf7223813720f7566c9dd05b? l
2 files updated, 1 files merged, 0 files removed, 0 files unresolved
$ hg status -A large1
M large1
$ cat large1
large1 for linear merge (conflict)
$ cat .hglf/large1
ba94c2efe5b7c5e0af8d189295ce00553b0612b7
$ hg status -A large2
A large2
$ cat large2
large2 for linear merge (conflict with normal file)
$ cat .hglf/large2
d7591fe9be0f6227d90bddf3e4f52ff41fc1f544
(internal linear merging in subrepo at "hg update")
$ cd ..
$ hg init subparent
$ cd subparent
$ hg clone -q -u 2 ../repo sub
$ cat > .hgsub <<EOF
> sub = sub
> EOF
$ hg add .hgsub
$ hg commit -m '#0@parent'
$ cat .hgsubstate
f74e50bd9e5594b7cf1e6c5cbab86ddd25f3ca2f sub
$ hg -R sub update -q
$ hg commit -m '#1@parent'
$ cat .hgsubstate
d65e59e952a9638e2ce863b41a420ca723dd3e8d sub
$ hg update -q 0
$ echo 'large1 for linear merge (conflict)' > sub/large1
$ echo 'large2 for linear merge (conflict with normal file)' > sub/large2
$ hg update --config ui.interactive=True --config debug.dirstate.delaywrite=2 <<EOF
> m
> r
> l
> l
> EOF
subrepository sub diverged (local revision: f74e50bd9e55, remote revision: d65e59e952a9)
(M)erge, keep (l)ocal or keep (r)emote? m
subrepository sources for sub differ (in checked out version)
use (l)ocal source (f74e50bd9e55) or (r)emote source (d65e59e952a9)? r
remote turned local largefile large2 into a normal file
keep (l)argefile or use (n)ormal file? l
largefile large1 has a merge conflict
ancestor was 4669e532d5b2c093a78eca010077e708a071bb64
keep (l)ocal ba94c2efe5b7c5e0af8d189295ce00553b0612b7 or
take (o)ther e5bb990443d6a92aaf7223813720f7566c9dd05b? l
2 files updated, 1 files merged, 0 files removed, 0 files unresolved
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg -R sub status -A sub/large1
M sub/large1
$ cat sub/large1
large1 for linear merge (conflict)
$ cat sub/.hglf/large1
ba94c2efe5b7c5e0af8d189295ce00553b0612b7
$ hg -R sub status -A sub/large2
A sub/large2
$ cat sub/large2
large2 for linear merge (conflict with normal file)
$ cat sub/.hglf/large2
d7591fe9be0f6227d90bddf3e4f52ff41fc1f544
$ cd ..
$ cd repo
Test that rebase updates largefiles in the working directory even if
it is aborted by conflict.
$ hg update -q -C 3
$ cat .hglf/large1
e5bb990443d6a92aaf7223813720f7566c9dd05b
$ cat large1
large1 in #3
$ hg rebase -s 1 -d 3 --keep --config ui.interactive=True <<EOF
> o
> EOF
rebasing 1:72518492caa6 "#1"
largefile large1 has a merge conflict
ancestor was 4669e532d5b2c093a78eca010077e708a071bb64
keep (l)ocal e5bb990443d6a92aaf7223813720f7566c9dd05b or
take (o)ther 58e24f733a964da346e2407a2bee99d9001184f5? o
merging normal1
warning: conflicts while merging normal1! (edit, then use 'hg resolve --mark')
unresolved conflicts (see hg resolve, then hg rebase --continue)
[1]
$ cat .hglf/large1
58e24f733a964da346e2407a2bee99d9001184f5
$ cat large1
large1 in #1
Test that rebase updates standins for manually modified largefiles at
the 1st commit of resuming.
$ echo "manually modified before 'hg rebase --continue'" > large1
$ hg resolve -m normal1
(no more unresolved files)
continue: hg rebase --continue
$ hg rebase --continue --config ui.interactive=True <<EOF
> c
> EOF
rebasing 1:72518492caa6 "#1"
rebasing 4:07d6153b5c04 "#4"
local changed .hglf/large1 which remote deleted
use (c)hanged version, (d)elete, or leave (u)nresolved? c
$ hg diff -c "tip~1" --nodates .hglf/large1 | grep '^[+-][0-9a-z]'
-e5bb990443d6a92aaf7223813720f7566c9dd05b
+8a4f783556e7dea21139ca0466eafce954c75c13
$ rm -f large1
$ hg update -q -C tip
$ cat large1
manually modified before 'hg rebase --continue'
Test that transplant updates largefiles, of which standins are safely
changed, even if it is aborted by conflict of other.
$ hg update -q -C 5
$ cat .hglf/large1
e5bb990443d6a92aaf7223813720f7566c9dd05b
$ cat large1
large1 in #3
$ hg diff -c 4 .hglf/largeX | grep '^[+-][0-9a-z]'
+fa44618ea25181aff4f48b70428294790cec9f61
$ hg transplant 4
applying 07d6153b5c04
patching file .hglf/large1
Hunk #1 FAILED at 0
1 out of 1 hunks FAILED -- saving rejects to file .hglf/large1.rej
patch failed to apply
abort: fix up the working directory and run hg transplant --continue
[255]
$ hg status -A large1
C large1
$ cat .hglf/large1
e5bb990443d6a92aaf7223813720f7566c9dd05b
$ cat large1
large1 in #3
$ hg status -A largeX
A largeX
$ cat .hglf/largeX
fa44618ea25181aff4f48b70428294790cec9f61
$ cat largeX
largeX
Test that transplant updates standins for manually modified largefiles
at the 1st commit of resuming.
$ echo "manually modified before 'hg transplant --continue'" > large1
$ hg transplant --continue
07d6153b5c04 transplanted as f1bf30eb88cc
$ hg diff -c tip .hglf/large1 | grep '^[+-][0-9a-z]'
-e5bb990443d6a92aaf7223813720f7566c9dd05b
+6a4f36d4075fbe0f30ec1d26ca44e63c05903671
$ rm -f large1
$ hg update -q -C tip
$ cat large1
manually modified before 'hg transplant --continue'
Test that "hg status" doesn't show removal of largefiles not managed
in the target context.
$ hg update -q -C 4
$ hg remove largeX
$ hg status -A largeX
R largeX
$ hg status -A --rev '.^1' largeX
#if execbit
Test that "hg status" against revisions other than parent notices exec
bit changes of largefiles.
$ hg update -q -C 4
(the case that large2 doesn't have exec bit in the target context but
in the working context)
$ chmod +x large2
$ hg status -A --rev 0 large2
M large2
$ hg commit -m 'chmod +x large2'
(the case that large2 has exec bit in the target context but not in
the working context)
$ echo dummy > dummy
$ hg add dummy
$ hg commit -m 'revision for separation'
$ chmod -x large2
$ hg status -A --rev '.^1' large2
M large2
#else
Test that "hg status" against revisions other than parent ignores exec
bit correctly on the platform being unaware of it.
$ hg update -q -C 4
$ cat > exec-bit.patch <<EOF
> # HG changeset patch
> # User test
> # Date 0 0
> # Thu Jan 01 00:00:00 1970 +0000
> # Node ID be1b433a65b12b27b5519d92213e14f7e1769b90
> # Parent 07d6153b5c04313efb75deec9ba577de7faeb727
> chmod +x large2
>
> diff --git a/.hglf/large2 b/.hglf/large2
> old mode 100644
> new mode 100755
> EOF
$ hg import --exact --bypass exec-bit.patch
applying exec-bit.patch
$ hg status -A --rev tip large2
C large2
#endif
$ cd ..
Test that "hg convert" avoids copying largefiles from the working
directory into store, because "hg convert" doesn't update largefiles
in the working directory (removing files under ".cache/largefiles"
forces "hg convert" to copy corresponding largefiles)
$ cat >> $HGRCPATH <<EOF
> [extensions]
> convert =
> EOF
$ rm $TESTTMP/.cache/largefiles/6a4f36d4075fbe0f30ec1d26ca44e63c05903671
$ hg convert -q repo repo.converted