patch: refactor file creation/removal detection The patcher has to know if a file is being created or removed to check if the target already exists, or to actually unlink the file when a hunk emptying it is applied. This was done by embedding the creation/removal information in the first (and only) hunk attached to the file. There are two problems with this approach: - creation/removal is really a property of the file being patched and not its hunk. - for regular patches, file creation cannot be deduced at parsing time: there are case where the *stripped* file paths must be compared. Modifying hunks after their creation is clumsy and prevent further refactorings related to copies handling. Instead, we delegate this job to selectfile() which has all the relevant information, and remove the hunk createfile() and rmfile() methods. [ original upstream message ]

run-tests: fix --blacklist with jobs > 1 filter blacklisted tests before partitioning them to the children. maintains the 'Skipped...' output but not the 's'. [ original upstream message ]

run-tests: slightly simplify blacklist check [ original upstream message ]

Merge with stable

patch: set desired mode when patching, not in updatedir() This patch and the following aim at merging _updatedir() actions into _applydiff(). [ original upstream message ]

Merge with stable

run-tests: print a newline after all warnings [ original upstream message ]

Merge with stable

patch: extract fs access from patchfile into fsbackend Most filesystem calls are already isolated in patchfile but this is not enough: renames are performed before patchfile is available and some chmod calls are even done outside of the applydiff call. Once all these calls are extracted into a backend class, we can provide cleaner APIs to write to a working directory context directly into the repository. [ original upstream message ]

Merge with stable