py3: have a bytes version of sys.platform sys.platform returns unicodes on Python 3. This patch adds up pycompat.sysplatform which returns bytes.

py3: have a bytes version of os.altsep os.altsep returns unicodes on Python 3. We need a bytes version hence added pycompat.altsep.

py3: make sure encoding.encoding is a bytes variable encoding.encoding returns unicodes when locale.getpreferredencoding() is used to get the preferred encoding. This patch fixes that.

chg: remove locks See the previous two patches for the reason. The advantage is a simplified code base and better throughput when starting multiple servers with multiple confighashes. The disadvantage is starting multiple servers in parallel with a single confighash will waste some CPU time, which is probably fine in common use-cases. This makes it easier to switch to relative paths to support long unix domain socket paths.

chg: start server at a unique address See the previous patch for motivation. Previously, the server is started at a globally shared address. This patch appends pid to the address so it becomes unique. Note: with Linux pid namespace, the address may be non-unique, but it does not affect correctness of chg - chg client will receive an redirection and that's it.

chgserver: truncate base address at "." for hash address Previously, the hash address is just appending "-$HASH" to base address. This patch makes it truncate the basename address at "." before appending "-$HASH". This makes it possible to spawn new servers in a racy situation and the client could be sure the server it connects is the new server just spawned. This is a step towards removing the lock. One of the functionalities of the lock is to make sure the connect will connect to a server it just created: 1. start server --address foo 2. connect to foo # wish "foo" is the server just started With this change, the client could do: 1. start server --address foo.tmp$PID 2. connect to foo.tmp$PID # is the server just started (note: if it is not, it does not affect correctness - linux pid namespace is not a concern here) 3. rename foo.tmp$PID to foo Another functionality of the lock is to avoid starting multiple servers with a same confighash in parallel. But that also prevents starting multiple servers with different confighashes in parallel.

ui: do not translate empty configsource() to 'none' (API) It should be processed when displaying data, so we can get "source": "" in JSON output.

convert: remove unused-but-set variable introduced in db9e883566e8 Spotted by pyflakes.

py3: replace os.sep with pycompat.ossep (part 4 of 4)

py3: replace os.sep with pycompat.ossep (part 3 of 4)

py3: replace os.sep with pycompat.ossep (part 2 of 4) This part also replaces some chunks of os.sep with pycompat.ossep.

py3: replace os.sep with pycompat.ossep (part 1 of 4) os.sep returns unicodes on Python 3. We have pycompat.ossep which returns bytes. This patch is a part of 4 patch series which will replace all the occurrences of os.sep to pycompat.ossep

py3: replace os.pathsep with pycompat.ospathsep os.pathsep returns unicode on Python 3. We already have pycompat.ospathsep which return bytes on Python 3. This patch replaces all the occurrences of os.pathsep in the codebase (excluding tests) to pycompat.ospathsep.

py3: use %d instead of %s for integers Python 3 returns an error if we use %s as type specifiers for integers.

help: make multirevs just an alias for revsets The multirevs topis seems to be covered well by the revsets topic, so just make it an alias and remove multirevs.txt.

context: correct metadataonlyctx's parameter It's "originalctx", not "path" as Yuya pointed in [1]. [1]: www.mercurial-scm.org/pipermail/mercurial-devel/2016-December/091508.html

registrar: raise a programming error on duplicated registering Previous, registering different object with the same name would silently overwrite the first value with the second one. We now detect the situation and raise an error. No extension in test or core had the issues.

py3kcompat: drop unused module Perhaps this was a predated attempt of Python 3 porting. Python 3.5 supports %-formatting of bytes.

strutil: drop module which no longer be used

convert: inline strutil.rfindall() This is the only place where strutil is used. I don't think it's worth to keep the strutil module, so inline it. Also, strutil.rfindall() appears to have off-by-one error. 'end = c - 1' is wrong because 'end' is exclusive.

convert: return commit objects for revisions in the revmap Source revision data that exists in the revmap are ignored when pulling data from Perforce as we consider them already imported. In case where the `convertcmd.convert` algorithm requests a commit object for such a revision we are creating it. This is usually the case for parent of the first imported revision.

convert: encapsulate commit data fetching and commit object creation Split fetching the `describe` form from Perforce and the commit object creation into two functions. This allows us to reuse the commit construction for revisions passed from a revmap.

convert: do not provide head revisions if we have no changests to import Don't set a head revision in cases where we have a revmap but no changesets to import, as convertcmd.convert() treats them as heads of to-imported revisions.

convert: allow passing in a revmap Implement `common.setrevmap` which is used to pass in a file with existing revision mappings. This functionality is used by `convertcmd.convert` if it exists and allows implementors such as the p4 converter to make use of an existing mapping. We are using the revmap to abort scanning and the repository for more information if we already have the revision. This means we are allowing incremental imports in cases where a revmap is provided.