rebase: add boolean config item rebase.store-source
This allows to use rebase without recording a rebase_source extra
field. This is useful for example to build a mirror converted from
another SCM (such as svn) by converting only new revisions, and
then incrementally add them to the destination by pulling from the
newly converted (unrelated) repo and rebasing the new revisions
onto the last old already stored changeset. Without this patch the
rebased changesets would always receive some rebase_source that
would depend on the particular history of the conversion process,
instead of only depending on the original source revisions.
This is used to implement a hg mirror repo of SvarDOS (a partially
nonfree but completely redistributable DOS distribution) in the
scripts at https://hg.pushbx.org/ecm/svardos.scr/
In particular, cre.sh creates an svn mirror, upd.sh recreates an
entire hg repo from the svn mirror (which takes too long to do in a
regular job), and akt.sh uses hg convert with the config item
convert.svn.startrev to incrementally convert only the two most
recent revisions already found in the mirror destination plus any
possible new revisions. If any are found, the temporary repo's
changesets are pulled into the destination (as changesets from an
unrelated repository). Then the changesets corresponding to the new
revisions are rebased onto the prior final changeset. (Finally, the
two remaining duplicates of the prior head and its parent are
stripped from the destination repository.)
Without this patch, the particular rebase_source extra field would
depend on the order and times at which akt.sh was used, instead of
only depending on the source repository. In other words, whatever
sequence of upd.sh and akt.sh is used at whatever times, it is
desired that the final output repositories always match each other
exactly.
$ USERCACHE="$TESTTMP/cache"; export USERCACHE
$ mkdir "${USERCACHE}"
$ cat >> $HGRCPATH <<EOF
> [extensions]
> largefiles =
> share =
> strip =
> convert =
> [largefiles]
> minsize = 0.5
> patterns = **.other
> **.dat
> usercache=${USERCACHE}
> EOF
"lfconvert" works
$ hg init bigfile-repo
$ cd bigfile-repo
$ cat >> .hg/hgrc <<EOF
> [extensions]
> largefiles = !
> EOF
$ mkdir sub
$ dd if=/dev/zero bs=1k count=256 > large 2> /dev/null
$ dd if=/dev/zero bs=1k count=256 > large2 2> /dev/null
$ echo normal > normal1
$ echo alsonormal > sub/normal2
$ dd if=/dev/zero bs=1k count=10 > sub/maybelarge.dat 2> /dev/null
$ hg addremove
adding large
adding large2
adding normal1
adding sub/maybelarge.dat
adding sub/normal2
$ hg commit -m"add large, normal1" large normal1
$ hg commit -m"add sub/*" sub
Test tag parsing
$ cat >> .hgtags <<EOF
> IncorrectlyFormattedTag!
> invalidhash sometag
> 0123456789abcdef anothertag
> EOF
$ hg add .hgtags
$ hg commit -m"add large2" large2 .hgtags
Test link+rename largefile codepath
$ [ -d .hg/largefiles ] && echo fail || echo pass
pass
$ cd ..
$ hg lfconvert --size 0.2 bigfile-repo largefiles-repo
initializing destination largefiles-repo
skipping incorrectly formatted tag IncorrectlyFormattedTag!
skipping incorrectly formatted id invalidhash
no mapping for id 0123456789abcdef
#if symlink
$ hg --cwd bigfile-repo rename large2 large3
$ ln -sf large bigfile-repo/large3
$ hg --cwd bigfile-repo commit -m"make large2 a symlink" large2 large3
$ hg lfconvert --size 0.2 bigfile-repo largefiles-repo-symlink
initializing destination largefiles-repo-symlink
skipping incorrectly formatted tag IncorrectlyFormattedTag!
skipping incorrectly formatted id invalidhash
no mapping for id 0123456789abcdef
abort: renamed/copied largefile large3 becomes symlink
[255]
#endif
$ cd bigfile-repo
$ hg strip --no-backup 2
0 files updated, 0 files merged, 2 files removed, 0 files unresolved
$ cd ..
$ rm -rf largefiles-repo largefiles-repo-symlink
$ hg lfconvert --size 0.2 bigfile-repo largefiles-repo
initializing destination largefiles-repo
"lfconvert" converts content correctly
$ cd largefiles-repo
$ hg up
getting changed largefiles
2 largefiles updated, 0 removed
4 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg locate
.hglf/large
.hglf/sub/maybelarge.dat
normal1
sub/normal2
$ cat normal1
normal
$ cat sub/normal2
alsonormal
$ md5sum.py large sub/maybelarge.dat
ec87a838931d4d5d2e94a04644788a55 large
1276481102f218c981e0324180bafd9f sub/maybelarge.dat
"lfconvert" adds 'largefiles' to .hg/requires.
$ hg debugrequires
dotencode
dirstate-v2 (dirstate-v2 !)
fncache
generaldelta
largefiles
persistent-nodemap (rust !)
revlog-compression-zstd (zstd !)
revlogv1
share-safe
sparserevlog
store
testonly-simplestore (reposimplestore !)
"lfconvert" includes a newline at the end of the standin files.
$ cat .hglf/large .hglf/sub/maybelarge.dat
2e000fa7e85759c7f4c254d4d9c33ef481e459a7
34e163be8e43c5631d8b92e9c43ab0bf0fa62b9c
$ cd ..
add some changesets to rename/remove/merge
$ cd bigfile-repo
$ hg mv -q sub stuff
$ hg commit -m"rename sub/ to stuff/"
$ hg update -q 1
$ echo blah >> normal3
$ echo blah >> sub/normal2
$ echo blah >> sub/maybelarge.dat
$ md5sum.py sub/maybelarge.dat
1dd0b99ff80e19cff409702a1d3f5e15 sub/maybelarge.dat
$ hg commit -A -m"add normal3, modify sub/*"
adding normal3
created new head
$ hg rm large normal3
$ hg commit -q -m"remove large, normal3"
$ hg merge
tool internal:merge (for pattern stuff/maybelarge.dat) can't handle binary
no tool found to merge stuff/maybelarge.dat
file 'stuff/maybelarge.dat' needs to be resolved.
You can keep (l)ocal [working copy], take (o)ther [merge rev], or leave (u)nresolved.
What do you want to do? u
merging sub/normal2 and stuff/normal2 to stuff/normal2
0 files updated, 1 files merged, 0 files removed, 1 files unresolved
use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
[1]
$ hg cat -r . sub/maybelarge.dat > stuff/maybelarge.dat
$ hg resolve -m stuff/maybelarge.dat
(no more unresolved files)
$ hg commit -m"merge"
$ hg log -G --template "{rev}:{node|short} {desc|firstline}\n"
@ 5:4884f215abda merge
|\
| o 4:7285f817b77e remove large, normal3
| |
| o 3:67e3892e3534 add normal3, modify sub/*
| |
o | 2:c96c8beb5d56 rename sub/ to stuff/
|/
o 1:020c65d24e11 add sub/*
|
o 0:117b8328f97a add large, normal1
$ cd ..
lfconvert with rename, merge, and remove
$ rm -rf largefiles-repo
$ hg lfconvert --size 0.2 bigfile-repo largefiles-repo
initializing destination largefiles-repo
$ cd largefiles-repo
$ hg log -G --template "{rev}:{node|short} {desc|firstline}\n"
o 5:9cc5aa7204f0 merge
|\
| o 4:a5a02de7a8e4 remove large, normal3
| |
| o 3:55759520c76f add normal3, modify sub/*
| |
o | 2:261ad3f3f037 rename sub/ to stuff/
|/
o 1:334e5237836d add sub/*
|
o 0:d4892ec57ce2 add large, normal1
$ hg locate -r 2
.hglf/large
.hglf/stuff/maybelarge.dat
normal1
stuff/normal2
$ hg locate -r 3
.hglf/large
.hglf/sub/maybelarge.dat
normal1
normal3
sub/normal2
$ hg locate -r 4
.hglf/sub/maybelarge.dat
normal1
sub/normal2
$ hg locate -r 5
.hglf/stuff/maybelarge.dat
normal1
stuff/normal2
$ hg update
getting changed largefiles
1 largefiles updated, 0 removed
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cat stuff/normal2
alsonormal
blah
$ md5sum.py stuff/maybelarge.dat
1dd0b99ff80e19cff409702a1d3f5e15 stuff/maybelarge.dat
$ cat .hglf/stuff/maybelarge.dat
76236b6a2c6102826c61af4297dd738fb3b1de38
$ cd ..
"lfconvert" error cases
$ hg lfconvert http://localhost/foo foo
abort: http://localhost/foo is not a local Mercurial repo
[255]
$ hg lfconvert foo ssh://localhost/foo
abort: ssh://localhost/foo is not a local Mercurial repo
[255]
$ hg lfconvert nosuchrepo foo
abort: repository nosuchrepo not found
[255]
$ hg share -q -U bigfile-repo shared
$ printf 'bogus' > shared/.hg/sharedpath
$ hg lfconvert shared foo
abort: .hg/sharedpath points to nonexistent directory $TESTTMP/bogus
[255]
$ hg lfconvert bigfile-repo largefiles-repo
initializing destination largefiles-repo
abort: repository largefiles-repo already exists
[255]
add another largefile to the new largefiles repo
$ cd largefiles-repo
$ dd if=/dev/zero bs=1k count=1k > anotherlarge 2> /dev/null
$ hg add --lfsize=1 anotherlarge
$ hg commit -m "add anotherlarge (should be a largefile)"
$ cat .hglf/anotherlarge
3b71f43ff30f4b15b5cd85dd9e95ebc7e84eb5a3
$ hg tag mytag
$ cd ..
round-trip: converting back to a normal (non-largefiles) repo with
"lfconvert --to-normal" should give the same as ../bigfile-repo. The
convert extension is disabled to show config items can be loaded without it.
$ cd largefiles-repo
$ hg --config extensions.convert=! lfconvert --to-normal . ../normal-repo
initializing destination ../normal-repo
0 additional largefiles cached
scanning source...
sorting...
converting...
7 add large, normal1
6 add sub/*
5 rename sub/ to stuff/
4 add normal3, modify sub/*
3 remove large, normal3
2 merge
1 add anotherlarge (should be a largefile)
0 Added tag mytag for changeset 17126745edfd
$ cd ../normal-repo
$ cat >> .hg/hgrc <<EOF
> [extensions]
> largefiles = !
> EOF
$ hg log -G --template "{rev}:{node|short} {desc|firstline}\n"
o 7:b5fedc110b9d Added tag mytag for changeset 867ab992ecf4
|
o 6:867ab992ecf4 add anotherlarge (should be a largefile)
|
o 5:4884f215abda merge
|\
| o 4:7285f817b77e remove large, normal3
| |
| o 3:67e3892e3534 add normal3, modify sub/*
| |
o | 2:c96c8beb5d56 rename sub/ to stuff/
|/
o 1:020c65d24e11 add sub/*
|
o 0:117b8328f97a add large, normal1
$ hg update
5 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg locate
.hgtags
anotherlarge
normal1
stuff/maybelarge.dat
stuff/normal2
$ [ -d .hg/largefiles ] && echo fail || echo pass
pass
$ cd ..
Clearing the usercache ensures that commitctx doesn't try to cache largefiles
from the working dir on a convert.
$ rm "${USERCACHE}"/*
$ hg convert largefiles-repo
assuming destination largefiles-repo-hg
initializing destination largefiles-repo-hg repository
scanning source...
sorting...
converting...
7 add large, normal1
6 add sub/*
5 rename sub/ to stuff/
4 add normal3, modify sub/*
3 remove large, normal3
2 merge
1 add anotherlarge (should be a largefile)
0 Added tag mytag for changeset 17126745edfd
$ hg -R largefiles-repo-hg log -G --template "{rev}:{node|short} {desc|firstline}\n"
o 7:2f08f66459b7 Added tag mytag for changeset 17126745edfd
|
o 6:17126745edfd add anotherlarge (should be a largefile)
|
o 5:9cc5aa7204f0 merge
|\
| o 4:a5a02de7a8e4 remove large, normal3
| |
| o 3:55759520c76f add normal3, modify sub/*
| |
o | 2:261ad3f3f037 rename sub/ to stuff/
|/
o 1:334e5237836d add sub/*
|
o 0:d4892ec57ce2 add large, normal1
Verify will fail (for now) if the usercache is purged before converting, since
largefiles are not cached in the converted repo's local store by the conversion
process.
$ cd largefiles-repo-hg
$ cat >> .hg/hgrc <<EOF
> [experimental]
> evolution.createmarkers=True
> EOF
$ hg debugobsolete `hg log -r tip -T "{node}"`
1 new obsolescence markers
obsoleted 1 changesets
$ cd ..
$ hg -R largefiles-repo-hg verify --large --lfa
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
checked 8 changesets with 13 changes to 9 files
searching 7 changesets for largefiles
changeset 0:d4892ec57ce2: large references missing $TESTTMP/largefiles-repo-hg/.hg/largefiles/2e000fa7e85759c7f4c254d4d9c33ef481e459a7
changeset 1:334e5237836d: sub/maybelarge.dat references missing $TESTTMP/largefiles-repo-hg/.hg/largefiles/34e163be8e43c5631d8b92e9c43ab0bf0fa62b9c
changeset 2:261ad3f3f037: stuff/maybelarge.dat references missing $TESTTMP/largefiles-repo-hg/.hg/largefiles/34e163be8e43c5631d8b92e9c43ab0bf0fa62b9c
changeset 3:55759520c76f: sub/maybelarge.dat references missing $TESTTMP/largefiles-repo-hg/.hg/largefiles/76236b6a2c6102826c61af4297dd738fb3b1de38
changeset 5:9cc5aa7204f0: stuff/maybelarge.dat references missing $TESTTMP/largefiles-repo-hg/.hg/largefiles/76236b6a2c6102826c61af4297dd738fb3b1de38
changeset 6:17126745edfd: anotherlarge references missing $TESTTMP/largefiles-repo-hg/.hg/largefiles/3b71f43ff30f4b15b5cd85dd9e95ebc7e84eb5a3
verified existence of 6 revisions of 4 largefiles
[1]
$ hg -R largefiles-repo-hg showconfig paths
[1]
Avoid a traceback if a largefile isn't available (issue3519)
Ensure the largefile can be cached in the source if necessary
$ hg clone -U largefiles-repo issue3519
$ rm -f "${USERCACHE}"/*
$ hg -R issue3519 branch -q mybranch
$ hg -R issue3519 ci -m 'change branch name only'
$ hg lfconvert --to-normal issue3519 normalized3519
initializing destination normalized3519
4 additional largefiles cached
scanning source...
sorting...
converting...
8 add large, normal1
7 add sub/*
6 rename sub/ to stuff/
5 add normal3, modify sub/*
4 remove large, normal3
3 merge
2 add anotherlarge (should be a largefile)
1 Added tag mytag for changeset 17126745edfd
0 change branch name only
Ensure empty commits aren't lost in the conversion
$ hg -R normalized3519 log -r tip -T '{desc}\n'
change branch name only
Ensure the abort message is useful if a largefile is entirely unavailable
$ rm -rf normalized3519
$ rm "${USERCACHE}"/*
$ rm issue3519/.hg/largefiles/*
$ rm largefiles-repo/.hg/largefiles/*
$ hg lfconvert --to-normal issue3519 normalized3519
initializing destination normalized3519
large: largefile 2e000fa7e85759c7f4c254d4d9c33ef481e459a7 not available from file:/*/$TESTTMP/largefiles-repo (glob)
large: largefile 2e000fa7e85759c7f4c254d4d9c33ef481e459a7 not available from file:/*/$TESTTMP/largefiles-repo (glob)
sub/maybelarge.dat: largefile 34e163be8e43c5631d8b92e9c43ab0bf0fa62b9c not available from file:/*/$TESTTMP/largefiles-repo (glob)
large: largefile 2e000fa7e85759c7f4c254d4d9c33ef481e459a7 not available from file:/*/$TESTTMP/largefiles-repo (glob)
stuff/maybelarge.dat: largefile 34e163be8e43c5631d8b92e9c43ab0bf0fa62b9c not available from file:/*/$TESTTMP/largefiles-repo (glob)
large: largefile 2e000fa7e85759c7f4c254d4d9c33ef481e459a7 not available from file:/*/$TESTTMP/largefiles-repo (glob)
sub/maybelarge.dat: largefile 76236b6a2c6102826c61af4297dd738fb3b1de38 not available from file:/*/$TESTTMP/largefiles-repo (glob)
sub/maybelarge.dat: largefile 76236b6a2c6102826c61af4297dd738fb3b1de38 not available from file:/*/$TESTTMP/largefiles-repo (glob)
stuff/maybelarge.dat: largefile 76236b6a2c6102826c61af4297dd738fb3b1de38 not available from file:/*/$TESTTMP/largefiles-repo (glob)
anotherlarge: largefile 3b71f43ff30f4b15b5cd85dd9e95ebc7e84eb5a3 not available from file:/*/$TESTTMP/largefiles-repo (glob)
stuff/maybelarge.dat: largefile 76236b6a2c6102826c61af4297dd738fb3b1de38 not available from file:/*/$TESTTMP/largefiles-repo (glob)
0 additional largefiles cached
11 largefiles failed to download
abort: all largefiles must be present locally
[255]