When cloning with the -r option or # url format from a tag the destination
repo most likely won't have the tag. We can save the lookup result to get to
the correct parent anyway. Similar to issue1306, but for tags.
In many places hg.parseurl is called with a url and "opts.get('rev')",
suggesting the second, optional argument can be None. Because opts['rev']
usually defaults to [] this never happens in practice.
However, extensions don't necessarily behave the same, but do copy this
pattern.
Also, include wider hg.parseurl tests, beyond a demonstration of the problem.
If the user created the clone target directory before running
the clone command, only cleanup the .hg/ repository when errors
occur. Leave the empty target directory in place.
With this change, "hg clone" looks like this:
% hg clone http://example.com/repo/big big
requesting all changes
adding changesets
adding manifests
adding file changes
added XXX changesets with XXX changes to XXX files
updating working directory
XXX files updated, XXX files merged, XXX files removed, XXX files unresolved
So the user sees
% hg clone http://example.com/repo/big big
requesting all changes
adding changesets
adding manifests
adding file changes
added XXX changesets with XXX changes to XXX files
updating working directory
while Mercurial is writing to disk to populate the working directory
With this change, "hg clone" looks like this:
% hg clone big big-work
updating working directory
XXX files updated, XXX files merged, XXX files removed, XXX files unresolved
A new function (extensions.extensions) allows the code that is
interested in those attributes to handle them directly.
This allows some cleanups of extensions.py. Notably, we can
remove the extensions.commandtable hack.
It also makes it easier to add standard extension attributes,
like a "hgwebsetup" function or a "helptable" dict that augments
the data in help.py, etc.
This allows you to do:
hg clone http://server/repo#stable
which is equivalent to:
hg clone -r stable http://server/repo
Future incoming, outgoing, and push commands will default to using
this id because it's recorded in the default path.
Other commands that accept URLs (push, pull, bundle, incoming, and
outgoing) also accept this syntax.
The ui object we received in this function may belong to another repo,
which could be confusing from the hook point of view. Trying to use
the ui object from the newly created repo should avoid this confusion.
since creating a repo raises an exception if the repo already
exists, there's no need to try to create one.
add some test for repo creation when the destination exists
islocal tells if a repo or url is local.
defaultdest returns default path for clone if explicit path not given.
clone can now take repo or url as source
existing clone code uses pull to get changes from remote repo. is very
slow, uses lots of memory and cpu.
new clone code has server write file data straight to client, client
writes file data straight to disk. memory and cpu used are very low,
clone is much faster over lan.
new client can still clone with pull, can still clone from older servers.
new server can still serve older clients.
str.find return -1 when the substring is not found, -1 evaluate
to True and is a valid index, which can lead to bugs.
Using alternatives when possible makes the code clearer and less
prone to bugs. (and __contains__ is faster in microbenchmarks)
Rearranged the clone command a good bit to make sure it validates that
the source does exist and that the destination doesn't before doing anything.
Before I moved the source repo check it would create the destination
repository before it verified the source existed.
Moved the responsibility for creating the destination repo root directory
entirly into the localrepo class so that local to local cloning doesn't break.
This also simplifies the code a bit since it's no longer being done in both
clone and init.
Changed the names of the 'repo' and 'other' variables to 'dest_repo' and
'src_repo' to maintain my sanity.
Passes 82/83 tests. The only failure is the version number test, which I
suspect is supposed to fail since it comes from a generated file.
- create new statichttprepo class
- pull remote bits out of localrepo
- pull remote bits out of util.opener
- switch hg.repository to use statichttprepo
TAH found a bug where push would push things the remote already had,
raising an assertion. This turned out to be because the changeset
protocol was not recording a common subset node in one case.
Also discovered was that the protocol was queueing multiple copies of
a node for pull. Fixed by changing fetch to a hash.
Add some more debugging output.
- rename mode to branch_merge
- use explicit update mode
- use negative mtime for updates that set mtime
- expand some cryptic variable names
- elaborate merge dirstate comments
- remove redundant manifest lookup for non-merge case
- remove impossible merge case
- fix up test cases
- use new changed list to track what files actually got new revlog entries
at commit/rawcommit time
- when updating a file during a merge, don't mark it as completely unchanged
- handle file not being in parent 1 in status
Since switching to the multihead approach, we've been creating
excessive file-level merges where files are marked as merged with
their ancestors.
This explicitly checks at commit time whether the two parent versions
are linearly related, and if so, reduces the file check-in to a
non-merge. Then the file is compared against the remaining parent,
and, if equal, skips check-in of that file (as it's not changed).
Since we're not checking in all files that were different between
versions, we no longer need to mark so many files for merge. This
removes most of the 'm' state marking as well.
Finally, it is possible to do a tree-level merge with no file-level
changes. This will happen if one user changes file A and another
changes file B. Thus, if we have have two parents, we allow commit to
proceed even if there are no file-level changes.
Right now, mercurial doesn't take daylight saving time into account
because it uses time.timezone inconditionally, instead of resorting to
time.altzone if daylight saving time is on.
named branching is when you identify a head by a tag on an earlier revision.
This patch adds repo.branchlookup for searching through the tree to
find branch tags for heads.
hg update -b tag is added to checkout based on branch tags
hg heads -b is added to print the tag associated with each head
Prior to this, a file that did not exist was reported as showing up in
the filesystem, as were files of unsupported types (such as fifos).
Now, an error message is printed and nothing is returned in such cases.
This change also moves the commands.pathto function to the util module,
as the walk code needs it to print non-confusing error messages.
The repo walking code introduces a number of calls to dirstate.map.copy(),
significantly slowing down the walk on large trees. When a list of
files is passed to the walking code, we should only look at map entries
relevant to the file list passed in.
dirstate.filterfiles() is added to return a subset of the dirstate map.
The subset includes in files passed in, and if one of the files requested
is actually a directory, it includes any files inside that directory tree.
This brings the time for hg diff Makefile down from 1.7s to .3s on
a linux kernel repo.
Also, the diff command was unconditionally calling makewalk, leading
to an extra pass through repo.changes. This patch avoids the call
to makewalk when commands.diff isn't given a list of patterns, cutting
the time for hg diff (with no args) in half.
Index: mine/mercurial/hg.py
===================================================================
The dirstate has to match what is in the repository (what would be
checked out with 'hg update -C'), because the resulting file may be
identical to the new parent, or it may be completely different.
Previously the dirstate wasn't updated, so if you changed the file to
look like the original parent, it might be considered unmodified
relative to the new parent.
On the other OS, it seems that case insensitivity for
environment vars can bite users when using some unknown
combination of python 2.4.1 and win2kSP4+minsys (and
probably other vversions of these softwares).
The best way to avoid problems in those weird cases is to
ignore OSError exception during env var deletion.
Interface is not yet changed.
Non-regular files are considered to be removed or deleted.
Removed the unneeded match(fn) call for adding to the unknown list.
The first consequence of this is that absolute and relative paths now
all work in the same way. The second is that paths that lie outside
the repository now cause an error to be reported, instead of something
arbitrary and expensive being done.
Internally, all of the serious work is in the util package. The new
canonpath function takes an arbitrary path and either returns a
canonical path or raises an error. Because it needs to know where the
repository root is, it must be fed a repository or dirstate object, which
has given commands.matchpats and friends a new parameter to pass along.
The util.matcher function uses this to canonicalise globs and relative
path names.
Meanwhile, I've moved the Abort exception from commands to util, and
killed off the redundant util.CommandError exception.
This is an improvement in behaviour, but the walk and changes code still
has some flaws that make sorted name presentation difficult:
- changes returns tuples of names, instead of a sorted list of (name,
status) pairs.
- walk yields deleted names after all others.
New function: commands.pathto returns the relative path from one path
to another. For example, given foo/bar and baz/quux, it will return
../../baz/quux. This new function is used by the walk and status code
to print relative paths correctly.
New command: debugwalk exercises the walk code without doing anything
more.
hg.dirstate.walk now yields normalised names. For example, if you're
in the baz directory and you ask it to walk ../foo/bar/.., it will yield
names starting with foo/.
As a result of this change, all of the other walk and changes methods
in this module also return normalised names.
The util.matcher function now normalises globs and path names, so that
it will match normalised names properly.
Finally, util.matcher uses the non-glob prefix of a glob to tell walk
which directories to scan. Perviously, a glob like foo/* would scan
everything, but only return matches for foo/*. Now, foo/* only scans
under foo (using the globprefix function), which is much faster.
The code is slightly complicated by the need to commit all outstanding
changes in the repository if no file names are given (other commands
operate on the current directory and its subdirectories in this case).
localrepository.changes has acquired an optional match parameter, to let
it filter out include/exclude options.
Commit would overwrite undo.dirstate unconditionally, so an undo after
an aborted commit would restore the dirstate from the aborted commit
and not the prior transaction.
This copies dirstate to journal.dirstate and moves it after a
successful transaction.
For 3-way merges, we were marking files as 'm', which should only be
used for branch merges. This was causing files to show up in 'hg
status' that aren't actually modified.
you geta pretty obscure error (zlib: uknown compression type). The
attached patch modifies hgweb.py and hg.py to supply and check a
'Content-type: application/hg-0.1' HTTP header for the branches,
between and changegroup commands, so that we know it's a proper hg
repo before snarfing the input. Comments appreciated!
If the source is 'f' (the filesystem), the file definitely exists in
the filesystem. If 'm' (a rev or dirstate manifest), the file may not
still exist with the given name.
# HG changeset patch
# User chad.netzer@gmail.com
# Node ID 45db196de89a15fd045cd789f701b0180fd276f1
# Parent 852adf9ffa4dd2cb1a504bd207f0cad178ac4024
Make consistent use of str.startswith() in conditionals.
# HG changeset patch
# User mark.williamson@cl.cam.ac.uk
# Node ID 55d38977b7f2e73b8c1090179928ac96c8922b90
# Parent 0bda45294416406d4c6fbaf1cb643dd0bf6b3a16
A number of minor fixes to problems that pychecker found.
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Fix bug in reverting deleted files
Force updates and reverts wouldn't restore deleted files in the
working dir. This should fix that.
manifest hash: e14809399bbc63da42e8c8f694cc8acf31e537f7
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# HG changeset patch
# User mason@suse.com
Performance enhancements for manifest.add()
Improve manifest.add performance by using bisect to insert/remove
changed items into the manifest list. This also generates the
manifest delta directly based on the changes being made.
This adds an object that remembers to unlock the remote repo on
destruction and lock/unlock functions for the ssh protocol. The remote
repository should also unlock itself when the connection goes down.
This allows the the pull side to precisely control how much data is
read so that another encapsulation layer is not needed.
An http client gets a response with a finite size. Because ssh clients
need to keep the stream open, we must not read more data than is sent
in a response. But due to the streaming nature of the changegroup
scheme, only the piece that's parsing the data knows how far it's
allowed to read.
This means the generator scheme isn't fine-grained enough. Instead we
need file-like objects with a read(x) method. This switches everything
for push/pull over to using file-like objects rather than generators.
# HG changeset patch
# User Bryan O'Sullivan <bos@serpentine.com>
# Node ID ebf5eba347a17a5c09000b3342caf350cd060a1b
# Parent 4309b0a5a6010dd2e5811b77d2bc29a51acf290f
Add locate command.
Used for finding files with names that match specific patterns,
such as "*.c".
This patch also introduces localrepository.getcwd, which returns the
current directory relative to the repository root.
# HG changeset patch
# User maf46@burn.cl.cam.ac.uk
# Node ID 57667c9b93a5a743e4629d15a0e6bd76699130c3
# Parent 4309b0a5a6010dd2e5811b77d2bc29a51acf290f
Fix zombie files in merge
Keir Fraser observed the following:
> I made a small test case that illustrates the bug in merging changesets
> with 'hg remove's in them:
>
> 1. Create a repository A containing files foo & bar.
> 2. Create clone called B.
> 3. A removes file bar, and commits this removal.
> 4. B edits file foo, and commits this edit.
>
> Now, if B:
> # hg pull ../A; hg update -m; hg commit
> Then bar remains deleted.
>
> If A:
> # hg pull ../B; hg update -m; hg commit
> Then bar is resurrected!
>
> It looks as though, when you merge across a branch, any deletions in
> your own branch are forgotten.
> ...
> Fixing this is a must, as zombie files are a real pain. :-)
Keir later patched our local copy of hg as shown below, which fixes
the problem. I've also enclosed a test which captures the test Keir
outlined...
Files deleted on a branch should not automatically reappear in a merge
Patch notes:
1. The first chunk does not change behaviour, but cleans up the code
to more closely match check of 'force' in the second chunk. I
think it makes the code clearer.
2. The second chunk fixes two bugs --
i. If we choose to keep a remotely-changed locally-deleted file,
then we need to 'get' that file. If we choose to delete it
then no action need be taken (it is already deleted in the
working manifest). Without this fix, choosing to delete would
get a Python traceback.
ii. The test for whether the file was remotely-created is
insufficient. It is only true if f is not in the common
ancestor. Otherwise the file was deleted locally, and should
remain deleted. (this is the most important fix!)
Index: hg/tests/test-merge6
===================================================================
# HG changeset patch
# User shaleh@speakeasy.net
# Node ID 1ae21732349f5b6dba2941609a044d9c365a6fb2
# Parent d3df6f5c87d045ba97457269261c35c30b04524b
* clean up error handling when user requests to use a non file object
- use os.path.exists() to verify the item exists
- use os.path.isfile() to check whether the item is a file or not
diff -r d3df6f5c87d0 -r 1ae21732349f mercurial/hg.py
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[PATCH] hg tag: local tag support in file .hg/localtags
From: Radoslaw Szkodzinski <astralstorm@gorzow.mm.pl>
Support local tags in .hg/localtags
Also minor cleanups in related functions
manifest hash: 553b2e896fed3c9055ed18482ce15cfaa4fc41ce
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Add username/merge/editor to .hgrc
These take priority over the equivalent environment vars
Deprecate HGMERGE, HGUSER, and HGEDITOR in docs
Add ui section to docs
Remove undocumented HG_OPTS
Raise username code out of changelog class
Make tests ignore ~/.hgrc
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Remove all remaining print statements
Convert most prints to ui.warn or ui.write
Pass a write function into transactions
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Actually warn on pulling from an unrelated repository
add some comments to findincoming
track the base nodes of the fetch set
report if the base set only contains nullid
add a test case
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Handle unknown files better on update
If we spot an unknown file that's identical to one that's in the
update, we get the updated one so that it shows up in the dirstate
properly.
manifest hash: 988aca64f255df67c27d1c6f8694ea098e4ec159
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repo.changes: fix duplicate changes
We need to discard the changed and added lists from dirstate.changes
before adding to them when comparing manifests. Otherwise something
that changed from rev->parent->working dir will appear twice.
Bug spotted by Goffredo Baroncelli <kreijack@libero.it>
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Fix dodiff/changes
dodiff was failing to pass both nodes to changes
changes was comparing things backwards, resulting in added/deleted confusion
in dodiff
changes was deleting things from cached manifests, use copy()
changes now sorts output lists
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Propagate file list through dodiff
This speeds up operations like 'hg diff Makefile'. Previously it would
walk the entire directory tree looking for changes. Now it will only
stat Makefile. Further, if Makefile appears untouched, it will skip
reading the manifest.
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Refactor diffrevs/diffdir into changes
Add dirstate.changes to replace most of diffdir
Add localrepository.changes to replace diffrevs/diffdir
This code can now efficiently check for changes in single files, and
often without consulting the manifest. This should eventually make 'hg
diff Makefile' in a large project much faster.
This also fixes a bug where 'hg diff -r tip' failed to account for
files that had been added but not committed yet.
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Use $USERNAME as a fallback for commit
Suggested by Giuseppe Bilotta <bilotta78@hotpop.com>
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Add initial hook support
This adds the basic hook code as well as pre and post-commit hooks.
Argument passing is by environment variable key/value pairs so that
extra data can be passed over time. File lists will generally not be
passed to hooks as these can be extremely long (>1M).
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rawcommit dirstate tweak
Before this patch, rawcommit can mess up the dirstate unless it is
committing against the current parent.
This patch changes rawcommit, such that when adding a child to some
node other than the current parent, rawcommit does not attempt update
the current dirstate.
This seems easily debatable; it creates an asymmetric behavior for
rawcommit. It means that when doing a rawcommit against the current
parent, there's effectively an implied "hg update" to the newly
created node. When doing a rawcommit against any other node, no such
"hg update" occurs.
The other obvious alternates would be:
1) rawcommit never update the dirstate
2) rawcommit always does an "hg update"...
This patch also includes a test for various uses of rawcommit...
Michael Fetterman
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Permission handling for the other OS
From: K Thananchayan <thananck@yahoo.com>
Preserve exec permission under Windows on existing source files. Not an ideal
solution as there is no way to specify exec permission for a new file.
Nevertheless, this helps working on crossplatform projects.
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Optimize annotate a bit
Keep the original text around so we don't need to rejoin it
Use slice insert-in-place rather than += to construct new lists
Construct the decorated list with list multiply rather than comprehension
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