convert: refactor subversion getchanges and caching

convert: remove incorrect and unused handling of removed svn directories Since it was introduced in f0c58fd4b798, tidy_dirs has been comparing the result of os.listdir with a string - which never can be true. Convert apparently works anyway and there is no test coverage of it. It also seems like it could make a bigger difference on older svn versions but is less relevant with more recent versions. Instead of trying to fix the code, we take the low risk option and remove it.

convert: use None value for missing files instead of overloading IOError The internal API used IOError to indicate that a file should be marked as removed. There is some correlation between IOError (especially with ENOENT) and files that should be removed, but using IOErrors to represent file removal internally required some hacks. Instead, use the value None to indicate that the file not is present. Before, spurious IO errors could cause commits that silently removed files. They will now be reported like all other IO errors so the root cause can be fixed.

merge with stable

convert: p4: ignore purged files with p4d 2012.2 and later Perforce has the concept of "+Sn" files where only the last revisions of the file is stored. In p4d 2012.1 old purged revisions were not included in the "manifest". With 2012.2 they started being included and convert's getfile failed to recognize the "purged" flag and saw it as an empty file. That made test-convert-p4-filetypes.t fail. There is no point in storing an empty file as placeholder for a purged file so we restore the old behaviour by checking the flag and letting getfile consider purged files deleted. (It is questionable whether it makes sense to convert not-yet-purged +S files to mercurial ... but that is another question.)

tests: fix p4 tests so they use separate ports and can be run in parallel

run-tests: report skipped tests as "skipped" - they might still be "relevant"

ui: add brief comment why raw_input() needs dummy ' ' prompt string Retrieved from 17ffb30d9174. I was about to move ' ' to label(msg + ' ', 'ui.prompt') so that subclass can distinguish prompt output from data. But it was not that simple.

largefiles: remove redundant "updatelfiles" invocation in "lfilesrepo.commit" After previous patches, largefiles in the working directory are ensured to be updated before "repo.commit" invocation for automated committing below: - by "overrides.mergeupdate" via "merge.update" for rebase - by "overrides.scmutilmarktouched" via "patch.patch" for transplant This patch removes redundant "lfcommands.updatelfiles" invocation in "Case 0" code path of "lfilesrepo.commit" for automated committing, and revises detailed comment.

largefiles: update largefiles even if transplant is aborted by conflict Before this patch, largefiles in the working directory aren't updated correctly, if transplant is aborted by conflict. This prevents users from viewing appropriate largefiles while resolving conflicts. While transplant, largefiles in the working directory are updated only at successful committing in the special code path of "lfilesrepo.commit()". To update largefiles even if transplant is aborted by conflict, this patch wraps "scmutil.marktouched", which is invoked from "patch.patch" with "files" list of added/modified/deleted files. This patch invokes "updatelfiles" with: - "printmessage=False", to suppress "getting changed largefiles ..." messages while automated committing by transplant - "normallookup=True", because "patch.patch" doesn't update dirstate for modified files in such case, "normallookup=False" may cause marking modified largefiles as "clean" unexpectedly