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revlog: subclass the new `repository.iverifyproblem` Protocol class...
revlog: subclass the new `repository.iverifyproblem` Protocol class This is the same transformation as 3a90a6fd710d did for dirstate, but the CamelCase naming was already cleaned up here. We shouldn't have to explicitly subclass, but I'm doing so to test the interplay of regular attributes and the `attrs` class. Also, PyCharm has a nifty feature that puts a jump point in the gutter to navigate back and forth between the base class and subclasses (and override functions and base class functions) when there's an explicit subclassing. Additionally, PyCharm will immediately flag signature mismatches without a 40m pytype run.

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test-convert.t
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$ cat >> $HGRCPATH <<EOF
> [extensions]
> convert=
> [convert]
> hg.saverev=False
> EOF
$ hg help convert
hg convert [OPTION]... SOURCE [DEST [REVMAP]]
convert a foreign SCM repository to a Mercurial one.
Accepted source formats [identifiers]:
- Mercurial [hg]
- CVS [cvs]
- Darcs [darcs]
- git [git]
- Subversion [svn]
- Monotone [mtn]
- GNU Arch [gnuarch]
- Bazaar [bzr]
- Perforce [p4]
Accepted destination formats [identifiers]:
- Mercurial [hg]
- Subversion [svn] (history on branches is not preserved)
If no revision is given, all revisions will be converted. Otherwise, convert
will only import up to the named revision (given in a format understood by the
source).
If no destination directory name is specified, it defaults to the basename of
the source with "-hg" appended. If the destination repository doesn't exist,
it will be created.
By default, all sources except Mercurial will use --branchsort. Mercurial uses
--sourcesort to preserve original revision numbers order. Sort modes have the
following effects:
--branchsort convert from parent to child revision when possible, which
means branches are usually converted one after the other.
It generates more compact repositories.
--datesort sort revisions by date. Converted repositories have good-
looking changelogs but are often an order of magnitude
larger than the same ones generated by --branchsort.
--sourcesort try to preserve source revisions order, only supported by
Mercurial sources.
--closesort try to move closed revisions as close as possible to parent
branches, only supported by Mercurial sources.
If "REVMAP" isn't given, it will be put in a default location
("<dest>/.hg/shamap" by default). The "REVMAP" is a simple text file that maps
each source commit ID to the destination ID for that revision, like so:
<source ID> <destination ID>
If the file doesn't exist, it's automatically created. It's updated on each
commit copied, so 'hg convert' can be interrupted and can be run repeatedly to
copy new commits.
The authormap is a simple text file that maps each source commit author to a
destination commit author. It is handy for source SCMs that use unix logins to
identify authors (e.g.: CVS). One line per author mapping and the line format
is:
source author = destination author
Empty lines and lines starting with a "#" are ignored.
The filemap is a file that allows filtering and remapping of files and
directories. Each line can contain one of the following directives:
include path/to/file-or-dir
exclude path/to/file-or-dir
rename path/to/source path/to/destination
Comment lines start with "#". A specified path matches if it equals the full
relative name of a file or one of its parent directories. The "include" or
"exclude" directive with the longest matching path applies, so line order does
not matter.
The "include" directive causes a file, or all files under a directory, to be
included in the destination repository. The default if there are no "include"
statements is to include everything. If there are any "include" statements,
nothing else is included. The "exclude" directive causes files or directories
to be omitted. The "rename" directive renames a file or directory if it is
converted. To rename from a subdirectory into the root of the repository, use
"." as the path to rename to.
"--full" will make sure the converted changesets contain exactly the right
files with the right content. It will make a full conversion of all files, not
just the ones that have changed. Files that already are correct will not be
changed. This can be used to apply filemap changes when converting
incrementally. This is currently only supported for Mercurial and Subversion.
The splicemap is a file that allows insertion of synthetic history, letting
you specify the parents of a revision. This is useful if you want to e.g. give
a Subversion merge two parents, or graft two disconnected series of history
together. Each entry contains a key, followed by a space, followed by one or
two comma-separated values:
key parent1, parent2
The key is the revision ID in the source revision control system whose parents
should be modified (same format as a key in .hg/shamap). The values are the
revision IDs (in either the source or destination revision control system)
that should be used as the new parents for that node. For example, if you have
merged "release-1.0" into "trunk", then you should specify the revision on
"trunk" as the first parent and the one on the "release-1.0" branch as the
second.
The branchmap is a file that allows you to rename a branch when it is being
brought in from whatever external repository. When used in conjunction with a
splicemap, it allows for a powerful combination to help fix even the most
badly mismanaged repositories and turn them into nicely structured Mercurial
repositories. The branchmap contains lines of the form:
original_branch_name new_branch_name
where "original_branch_name" is the name of the branch in the source
repository, and "new_branch_name" is the name of the branch is the destination
repository. No whitespace is allowed in the new branch name. This can be used
to (for instance) move code in one repository from "default" to a named
branch.
Mercurial Source
################
The Mercurial source recognizes the following configuration options, which you
can set on the command line with "--config":
convert.hg.ignoreerrors
ignore integrity errors when reading. Use it to fix Mercurial
repositories with missing revlogs, by converting from and to
Mercurial. Default is False.
convert.hg.saverev
store original revision ID in changeset (forces target IDs to
change). It takes a boolean argument and defaults to False.
convert.hg.startrev
specify the initial Mercurial revision. The default is 0.
convert.hg.revs
revset specifying the source revisions to convert.
Bazaar Source
#############
The following options can be used with "--config":
convert.bzr.saverev
whether to store the original Bazaar commit ID in the metadata
of the destination commit. The default is True.
CVS Source
##########
CVS source will use a sandbox (i.e. a checked-out copy) from CVS to indicate
the starting point of what will be converted. Direct access to the repository
files is not needed, unless of course the repository is ":local:". The
conversion uses the top level directory in the sandbox to find the CVS
repository, and then uses CVS rlog commands to find files to convert. This
means that unless a filemap is given, all files under the starting directory
will be converted, and that any directory reorganization in the CVS sandbox is
ignored.
The following options can be used with "--config":
convert.cvsps.cache
Set to False to disable remote log caching, for testing and
debugging purposes. Default is True.
convert.cvsps.fuzz
Specify the maximum time (in seconds) that is allowed between
commits with identical user and log message in a single
changeset. When very large files were checked in as part of a
changeset then the default may not be long enough. The default
is 60.
convert.cvsps.logencoding
Specify encoding name to be used for transcoding CVS log
messages. Multiple encoding names can be specified as a list
(see 'hg help config.Syntax'), but only the first acceptable
encoding in the list is used per CVS log entries. This
transcoding is executed before cvslog hook below.
convert.cvsps.mergeto
Specify a regular expression to which commit log messages are
matched. If a match occurs, then the conversion process will
insert a dummy revision merging the branch on which this log
message occurs to the branch indicated in the regex. Default is
"{{mergetobranch ([-\w]+)}}"
convert.cvsps.mergefrom
Specify a regular expression to which commit log messages are
matched. If a match occurs, then the conversion process will add
the most recent revision on the branch indicated in the regex as
the second parent of the changeset. Default is
"{{mergefrombranch ([-\w]+)}}"
convert.localtimezone
use local time (as determined by the TZ environment variable)
for changeset date/times. The default is False (use UTC).
hooks.cvslog Specify a Python function to be called at the end of gathering
the CVS log. The function is passed a list with the log entries,
and can modify the entries in-place, or add or delete them.
hooks.cvschangesets
Specify a Python function to be called after the changesets are
calculated from the CVS log. The function is passed a list with
the changeset entries, and can modify the changesets in-place,
or add or delete them.
An additional "debugcvsps" Mercurial command allows the builtin changeset
merging code to be run without doing a conversion. Its parameters and output
are similar to that of cvsps 2.1. Please see the command help for more
details.
Subversion Source
#################
Subversion source detects classical trunk/branches/tags layouts. By default,
the supplied "svn://repo/path/" source URL is converted as a single branch. If
"svn://repo/path/trunk" exists it replaces the default branch. If
"svn://repo/path/branches" exists, its subdirectories are listed as possible
branches. If "svn://repo/path/tags" exists, it is looked for tags referencing
converted branches. Default "trunk", "branches" and "tags" values can be
overridden with following options. Set them to paths relative to the source
URL, or leave them blank to disable auto detection.
The following options can be set with "--config":
convert.svn.branches
specify the directory containing branches. The default is
"branches".
convert.svn.tags
specify the directory containing tags. The default is "tags".
convert.svn.trunk
specify the name of the trunk branch. The default is "trunk".
convert.localtimezone
use local time (as determined by the TZ environment variable)
for changeset date/times. The default is False (use UTC).
Source history can be retrieved starting at a specific revision, instead of
being integrally converted. Only single branch conversions are supported.
convert.svn.startrev
specify start Subversion revision number. The default is 0.
Git Source
##########
The Git importer converts commits from all reachable branches (refs in
refs/heads) and remotes (refs in refs/remotes) to Mercurial. Branches are
converted to bookmarks with the same name, with the leading 'refs/heads'
stripped. Git submodules are converted to Git subrepos in Mercurial.
The following options can be set with "--config":
convert.git.similarity
specify how similar files modified in a commit must be to be
imported as renames or copies, as a percentage between "0"
(disabled) and "100" (files must be identical). For example,
"90" means that a delete/add pair will be imported as a rename
if more than 90% of the file hasn't changed. The default is
"50".
convert.git.findcopiesharder
while detecting copies, look at all files in the working copy
instead of just changed ones. This is very expensive for large
projects, and is only effective when "convert.git.similarity" is
greater than 0. The default is False.
convert.git.renamelimit
perform rename and copy detection up to this many changed files
in a commit. Increasing this will make rename and copy detection
more accurate but will significantly slow down computation on
large projects. The option is only relevant if
"convert.git.similarity" is greater than 0. The default is
"400".
convert.git.committeractions
list of actions to take when processing author and committer
values.
Git commits have separate author (who wrote the commit) and committer (who
applied the commit) fields. Not all destinations support separate author
and committer fields (including Mercurial). This config option controls
what to do with these author and committer fields during conversion.
A value of "messagedifferent" will append a "committer: ..." line to the
commit message if the Git committer is different from the author. The
prefix of that line can be specified using the syntax
"messagedifferent=<prefix>". e.g. "messagedifferent=git-committer:". When
a prefix is specified, a space will always be inserted between the prefix
and the value.
"messagealways" behaves like "messagedifferent" except it will always
result in a "committer: ..." line being appended to the commit message.
This value is mutually exclusive with "messagedifferent".
"dropcommitter" will remove references to the committer. Only references
to the author will remain. Actions that add references to the committer
will have no effect when this is set.
"replaceauthor" will replace the value of the author field with the
committer. Other actions that add references to the committer will still
take effect when this is set.
The default is "messagedifferent".
convert.git.extrakeys
list of extra keys from commit metadata to copy to the
destination. Some Git repositories store extra metadata in
commits. By default, this non-default metadata will be lost
during conversion. Setting this config option can retain that
metadata. Some built-in keys such as "parent" and "branch" are
not allowed to be copied.
convert.git.remoteprefix
remote refs are converted as bookmarks with
"convert.git.remoteprefix" as a prefix followed by a /. The
default is 'remote'.
convert.git.saverev
whether to store the original Git commit ID in the metadata of
the destination commit. The default is True.
convert.git.skipsubmodules
does not convert root level .gitmodules files or files with
160000 mode indicating a submodule. Default is False.
Perforce Source
###############
The Perforce (P4) importer can be given a p4 depot path or a client
specification as source. It will convert all files in the source to a flat
Mercurial repository, ignoring labels, branches and integrations. Note that
when a depot path is given you then usually should specify a target directory,
because otherwise the target may be named "...-hg".
The following options can be set with "--config":
convert.p4.encoding
specify the encoding to use when decoding standard output of the
Perforce command line tool. The default is default system
encoding.
convert.p4.startrev
specify initial Perforce revision (a Perforce changelist
number).
Mercurial Destination
#####################
The Mercurial destination will recognize Mercurial subrepositories in the
destination directory, and update the .hgsubstate file automatically if the
destination subrepositories contain the <dest>/<sub>/.hg/shamap file.
Converting a repository with subrepositories requires converting a single
repository at a time, from the bottom up.
The following options are supported:
convert.hg.clonebranches
dispatch source branches in separate clones. The default is
False.
convert.hg.tagsbranch
branch name for tag revisions, defaults to "default".
convert.hg.usebranchnames
preserve branch names. The default is True.
convert.hg.sourcename
records the given string as a 'convert_source' extra value on
each commit made in the target repository. The default is None.
convert.hg.preserve-hash
only works with mercurial sources. Make convert prevent
performance improvement to the list of modified files in commits
when such an improvement would cause the hash of a commit to
change. The default is False.
All Destinations
################
All destination types accept the following options:
convert.skiptags
does not convert tags from the source repo to the target repo.
The default is False.
Subversion Destination
######################
Original commit dates are not preserved by default.
convert.svn.dangerous-set-commit-dates
preserve original commit dates, forcefully setting "svn:date"
revision properties. This option is DANGEROUS and may break some
subversion functionality for the resulting repository (e.g.
filtering revisions with date ranges in "svn log"), as original
commit dates are not guaranteed to be monotonically increasing.
For commit dates setting to work destination repository must have "pre-
revprop-change" hook configured to allow setting of "svn:date" revision
properties. See Subversion documentation for more details.
options ([+] can be repeated):
-s --source-type TYPE source repository type
-d --dest-type TYPE destination repository type
-r --rev REV [+] import up to source revision REV
-A --authormap FILE remap usernames using this file
--filemap FILE remap file names using contents of file
--full apply filemap changes by converting all files again
--splicemap FILE splice synthesized history into place
--branchmap FILE change branch names while converting
--branchsort try to sort changesets by branches
--datesort try to sort changesets by date
--sourcesort preserve source changesets order
--closesort try to reorder closed revisions
(some details hidden, use --verbose to show complete help)
$ hg init a
$ cd a
$ echo a > a
$ hg ci -d'0 0' -Ama
adding a
$ hg cp a b
$ hg ci -d'1 0' -mb
$ hg rm a
$ hg ci -d'2 0' -mc
$ hg mv b a
$ hg ci -d'3 0' -md
$ echo a >> a
$ hg ci -d'4 0' -me
$ cd ..
$ hg convert a 2>&1 | grep -v 'subversion python bindings could not be loaded'
assuming destination a-hg
initializing destination a-hg repository
scanning source...
sorting...
converting...
4 a
3 b
2 c
1 d
0 e
$ hg --cwd a-hg pull ../a
pulling from ../a
searching for changes
no changes found
5 local changesets published
conversion to existing file should fail
$ touch bogusfile
$ hg convert a bogusfile
initializing destination bogusfile repository
abort: cannot create new bundle repository
[255]
#if unix-permissions no-root
conversion to dir without permissions should fail
$ mkdir bogusdir
$ chmod 000 bogusdir
$ hg convert a bogusdir
abort: $EACCES$: *bogusdir* (glob)
[255]
user permissions should succeed
$ chmod 700 bogusdir
$ hg convert a bogusdir
initializing destination bogusdir repository
scanning source...
sorting...
converting...
4 a
3 b
2 c
1 d
0 e
#endif
test pre and post conversion actions
$ echo 'include b' > filemap
$ hg convert --debug --filemap filemap a partialb | \
> grep 'run hg'
run hg source pre-conversion action
run hg sink pre-conversion action
run hg sink post-conversion action
run hg source post-conversion action
converting empty dir should fail "nicely
$ mkdir emptydir
override $PATH to ensure p4 not visible; use $PYTHON in case we're
running from a devel copy, not a temp installation
$ PATH="$BINDIR" "$PYTHON" "$BINDIR"/hg convert emptydir
assuming destination emptydir-hg
initializing destination emptydir-hg repository
emptydir does not look like a CVS checkout
$TESTTMP/emptydir does not look like a Git repository
emptydir does not look like a Subversion repository
emptydir is not a local Mercurial repository
emptydir does not look like a darcs repository
emptydir does not look like a monotone repository
emptydir does not look like a GNU Arch repository
emptydir does not look like a Bazaar repository
cannot find required "p4" tool
abort: emptydir: missing or unsupported repository
[255]
convert with imaginary source type
$ hg convert --source-type foo a a-foo
initializing destination a-foo repository
abort: foo: invalid source repository type
[255]
convert with imaginary sink type
$ hg convert --dest-type foo a a-foo
abort: foo: invalid destination repository type
[255]
testing: convert must not produce duplicate entries in fncache
$ hg convert a b
initializing destination b repository
scanning source...
sorting...
converting...
4 a
3 b
2 c
1 d
0 e
contents of fncache file:
#if repofncache
$ cat b/.hg/store/fncache | sort
data/a.i (reporevlogstore !)
data/b.i (reporevlogstore !)
#endif
test bogus URL
#if no-msys
$ hg convert -q bzr+ssh://foobar@selenic.com/baz baz
abort: bzr+ssh://foobar@selenic.com/baz: missing or unsupported repository
[255]
#endif
test revset converted() lookup
$ hg --config convert.hg.saverev=True convert a c
initializing destination c repository
scanning source...
sorting...
converting...
4 a
3 b
2 c
1 d
0 e
$ echo f > c/f
$ hg -R c ci -d'0 0' -Amf
adding f
created new head
$ hg -R c log -r "converted(09d945a62ce6)"
changeset: 1:98c3dd46a874
user: test
date: Thu Jan 01 00:00:01 1970 +0000
summary: b
$ hg -R c log -r "converted()"
changeset: 0:31ed57b2037c
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: a
changeset: 1:98c3dd46a874
user: test
date: Thu Jan 01 00:00:01 1970 +0000
summary: b
changeset: 2:3b9ca06ef716
user: test
date: Thu Jan 01 00:00:02 1970 +0000
summary: c
changeset: 3:4e0debd37cf2
user: test
date: Thu Jan 01 00:00:03 1970 +0000
summary: d
changeset: 4:9de3bc9349c5
user: test
date: Thu Jan 01 00:00:04 1970 +0000
summary: e
test specifying a sourcename
$ echo g > a/g
$ hg -R a ci -d'0 0' -Amg
adding g
$ hg --config convert.hg.sourcename=mysource --config convert.hg.saverev=True convert a c
scanning source...
sorting...
converting...
0 g
$ hg -R c log -r tip --template '{extras % "{extra}\n"}'
branch=default
convert_revision=a3bc6100aa8ec03e00aaf271f1f50046fb432072
convert_source=mysource
$ cat > branchmap.txt << EOF
> old branch new_branch
> EOF
$ hg -R a branch -q 'old branch'
$ echo gg > a/g
$ hg -R a ci -m 'branch name with spaces'
$ hg convert --branchmap branchmap.txt a d
initializing destination d repository
scanning source...
sorting...
converting...
6 a
5 b
4 c
3 d
2 e
1 g
0 branch name with spaces
$ hg -R a branches
old branch 6:a24a66ade009
default 5:a3bc6100aa8e (inactive)
$ hg -R d branches
new_branch 6:64ed208b732b
default 5:a3bc6100aa8e (inactive)