rhg: propogate error coming from HgError::Abort to CommandError Differential Revision: https://phab.mercurial-scm.org/D10839

rhg: add exit code to HgError::Abort() My previous attempts to have rhg end with correct exit code was more of bug hunting. I found cases which were failing and fixed them. But as one might expect, more tests started failing. Let's add exit code `HgError::Abort()` and make it users explicitly tell what exit code they want. Differential Revision: https://phab.mercurial-scm.org/D10838

rhg: split non_repo_config and `--config` loading in different functions This will help us in better handling of error caused when trying to load `--config` values. Differential Revision: https://phab.mercurial-scm.org/D10837

rhg: look for repository in ancestors also instead of cwd only Last patch introduced config reading at startup to parse value of `--repository` flag. However, that patch only tried to check for current repository at current working directory and not it's ancestors. This patch fixes that. Differential Revision: https://phab.mercurial-scm.org/D10767

rhg: read [paths] for `--repository` value hg parses `-R` and `--repository` CLI arguments "early" in order to know which local repository to load config from. (Config can then affect whether or how to fall back.) The value of of those arguments can be not only a filesystem path, but also an alias configured in the `[paths]` section. This part was missing in rhg and this patch implements that. The current patch still lacks functionality to read config of current repository if we are not at root of repo. That will be fixed in upcoming patches. A new crate `home` is added to get path of home directory. Differential Revision: https://phab.mercurial-scm.org/D10296

merge: with stable

revlog: allow to pass an existing docket to `_loadindex()` This will be when switching undelying files, for examples during censors and strip operation with rvlog-v2. Differential Revision: https://phab.mercurial-scm.org/D10800

revlog: add a ways to blacklist some revision when searching for a delta This will be useful to recompute appropriate deltas one the fly during censor/strip operation with revlog-v2. Differential Revision: https://phab.mercurial-scm.org/D10799

util: add `nb_bytes` argument to `copyfile` to partially copy a file When set, this allow to copy only the first `nb_bytes` of a file. This will be useful for censor/strip operation with revlogv2. Differential Revision: https://phab.mercurial-scm.org/D10798

revlog: move `revisioninfo` in `revlogutils` We will need it in other utility module. So lets extract it from `revlog.py`, the module is too large already anyway. Differential Revision: https://phab.mercurial-scm.org/D10797