reachableroots: add a C implementation This patch is part of a series of patches to speed up the computation of revset.reachableroots by introducing a C implementation. The main motivation is to speed up smartlog on big repositories. At the end of the series, on our big repositories the computation of reachableroots is 10-50x faster and smartlog on is 2x-5x faster. This patch introduces a C implementation for reachableroots following closely the Python implementation but optimized by using C data structures.

revset: remove grandparent by using reachableroots This patch is part of a series of patches to speed up the computation of revset.reachableroots by introducing a C implementation. The main motivation is to speed up smartlog on big repositories. At the end of the series, on our big repositories the computation of reachableroots is 10-50x faster and smartlog on is 2x-5x faster. Before this patch, we had a custom computation for grandparent that was very close to the idea of reacheablerooots. This patch expresses grandparent with reachableroots to reduce the amount of code.

revset: rename revsbetween to reachableroots and add an argument This patch is part of a series of patches to speed up the computation of revset.revsbetween by introducing a C implementation. The main motivation is to speed up smartlog on big repositories. At the end of the series, on our big repositories the computation of revsbetween is 10-50x faster and smartlog on is 2x-5x faster. This patch rename 'revsbetween' to 'reachableroots' and makes the computation of the full path optional. This will allow graphlog to compute grandparents using 'reachableroots' and remove the need for a dedicated grandparent function.

revset: make revsbetween public This patch is part of a series of patches to speed up the computation of revset.revsbetween by introducing a C implementation. The main motivation is to speed up smartlog on big repositories. At the end of the series, on our big repositories the computation of revsbetween is 10-50x faster and smartlog on is 2x-5x faster. Later in this serie, we want to reuse the implementation of revsbetween in the changelog module, therefore, we make it public.

match: fix a caseonly rename + explicit path commit on icasefs (issue4768) The problem was that the former name and the new name are both normalized to the case in dirstate, so matcher._files would be ['ABC.txt', 'ABC.txt']. localrepo.commit() calls localrepo.status(), passing along the matcher. Inside dirstate.status(), _walkexplicit() simply grabs matcher.files() and processes those items. Since the old name isn't present, it is silently dropped. There's a fundamental tension here, because the status command should also accept files that don't match the filesystem, so we can't drop the normalization in status. The problem originated in baa11dde8c0e. Unfortunately with this change, the case of the old file must still be specified exactly, or the old file is again silently excluded. I went back to baa11dde8c0e^, and that had the same behavior, so we are no worse off. I'm open to ideas from a matcher or dirstate expert on how to fix that half.

style: adjust whitespaces in webutil.py Turns out, all this came from the single d605a82cf189.

merge with stable

convert: fix git copy file content conversions There was a bug in the git convert code where if you copied a file and modified the copy source in the same commit, and if the copy dest was alphabetically earlier than the copy source, the converted version would use the copy dest contents for both the source and the target. The root of the bug is that the git diff-tree output is formatted like so: :<mode> <mode> <oldhash> <newhash> <state> <src> <dest> :100644 100644 c1ab79a15... 3dfc779ab... C069 oldname newname :100644 100644 c1ab79a15... 03e2188a6... M oldname The old code would always take the 'oldname' field as the name of the file being processed, then it would try to do an extra convert for the newname. This works for renames because it does a delete for the oldname and a create for the newname. For copies though, it ends up associating the copied content (3dfc779ab above) with the oldname. It only happened when the dest was alphabetically before because that meant the copy got processed before the modification. The fix is the treat copy lines as affecting only the newname, and not marking the oldname as processed.

revset: prevent crash caused by empty group expression while optimizing "or" An empty group expression "()" generates None in AST, so it should be tested before destructuring a tuple. "A | ()" is still evaluated to an error because I'm not sure whether "()" represents an empty set or an empty expression (= a unit value). They are identical in "or" operation, but they should be evaluated differently in "and" operation. expression empty set unit value ---------- --------- ---------- () {} A A & () {} A A | () A A

revset: prevent crash caused by empty group expression while optimizing "and" An empty group expression "()" generates None in AST, so the optimizer have to test it before destructuring a tuple. The error message, "missing argument", is somewhat obscure, but it should be better than crash.

win32: use absolute_import

wireproto: use absolute_import

worker: use absolute_import

verify: use absolute_import

url: use absolute_import

ui: use absolute_import And we have no more ambiguous mixed imports \o/

unionrepo: use absolute_import

treediscovery: use absolute_import

transaction: use absolute_import

templater: use absolute_import

templatekw: use absolute_import

templatefilters: use absolute_import

tags: use absolute_import

tagmerge: use absolute_import

subrepo: use absolute_import

strutil: use absolute_import This file doesn't import anything. But chances are we'll eventually implement a static analysis check that ensures absolute_import is used. So we might as well add this.

statichttprepo: use absolute_import

sslutil: use absolute_import

sshserver: use absolute_import

sshpeer: use absolute_import

simplemerge: use absolute_import

setdiscovery: use absolute_import

repoview: use absolute_import

revset: use absolute_import

repair: use absolute_import

pushkey: use absolute_import

progress: use absolute_import

posix: use absolute_import

phases: use absolute_import

peer: use absolute_import

pathutil: use absolute_import

parser: use absolute_import

node: use absolute_import

namespaces: use absolute_import

minirst: use absolute_import

merge: use absolute_import

match: use absolute_import

mail: use absolute_import