Summary:
Repository import has three major steps:
- Commit discovery (serial)
- Message parsing (parallel, mostly VCS independent)
- Change parsing (parallel, highly VCS dependent)
This implements commit discovery for Mercurial, similar to git's parsing:
- List the heads of all the branches.
- If we haven't already discovered them, follow them back to their roots (or
the first commit we have discovered).
- Import all the newly discovered commits, oldest first.
This is a little complicated but it ensures we discover commits in depth order,
so the discovery process is robust against interruption/failure. If we just
inserted commits as we went, we might read the tip, insert it, and then crash.
When we ran again, we'd think we had already discovered commits older than HEAD.
This also allows later stages to rely on being able to find Phabricator commit
IDs which correspond to parent commits.
NOTE: This importer is fairly slow because "hg" has a large startup time
(compare "hg --version" to "git --version" and "svn --version"; on my machine,
hg has 60ms of overhead for any command) and we need to run many commands (see
the whole "hg id" mess). You can expect something like 10,000 per hour, which
means you may need to run overnight to discover a large repository (IIRC, the
svn/git discovery processes are both about an order of magnitude faster). We
could improve this with batching, but I want to keep it as simple as possible
for now.
Test Plan: Discovered all the commits in the main Mercurial repository,
http://selenic.com/repo/hg.
Reviewers: Makinde, jungejason, nh, tuomaspelkonen, aran
Reviewed By: Makinde
CC: aran, Makinde
Differential Revision: 943
Summary: We already detect this in setup but double-check just in case, see
gmail thread.
Test Plan: Rebuilt PHP without pcntl and tried to run phd, got an error.
Reviewed By: aran
Reviewers: aran, jungejason, tuomaspelkonen
CC: aran
Differential Revision: 819
Summary:
Currently we send logs to the logfile in 'phd debug', but we should send them to
the console instead.
Also fixed some %C stuff which could theoretically cause problems if a user had
percentage symbols in their paths (heaven forbid).
fratrik, this or D535 might have been involved in frustrating your efforts to
debug the "sudo" stuff.
Test Plan:
Ran "phd debug irc derpderp" and "phd launch irc derpderp". In the former case,
the exception appeared in the console. In the latter, it appeared in the log.
Reviewed By: codeblock
Reviewers: codeblock, jungejason, tuomaspelkonen, aran, fratrik
CC: aran, codeblock
Differential Revision: 536
Summary:
Make it easier to find obvious problems in daemons by letting them run
undaemonized in the console without requiring the user to know the magical
incantations for loading libraries, etc.
Test Plan:
Ran "phd debug nice", simulated some failures (e.g., bringing down Phabricator,
daemon fatal) and got useful error messages.
Reviewed By: jungejason
Reviewers: toulouse, jungejason, tuomaspelkonen, aran
CC: aran, jungejason
Differential Revision: 448
error message if that doesn't work
Summary:
This workflow is needlessly bad right now, make it not terrible.
Also removed some related, unused code.
Test Plan:
Ran 'phd launch nice' with no directory and with a failing mkdir command.
Reviewed By: toulouse
Reviewers: hsb, toulouse, codeblock
CC: aran, toulouse
Differential Revision: 440
