Commit Graph

8 Commits

Author SHA1 Message Date
Jun Wu
6da344eee2 hgcommands: avoid forked processes to override trace output
Summary:
The environment variable `EDENSCM_TRACE_OUTPUT` specifies where to write the
tracing output for the current command. Environment variables are inherited
by subprocesses by default. That is undesirable because another hg command
(triggered by hook, or background maintaince) will rewrite the trace output.

Avoid it by unsetting EDENSCM_TRACE_OUTPUT for subprocesses.

Reviewed By: xavierd

Differential Revision: D18892973

fbshipit-source-id: 575b6c0df2e7a0775172893e4aa72ca33fa4658c
2019-12-09 13:09:25 -08:00
Jun Wu
541d4bf625 commands: avoid infinite loop when collecting process tree info
Summary:
We have seen cases on Windows where the hg process gets stuck in
CreateToolhelp32Snapshot. Let's be defensive and always exit the loop.

Reviewed By: singhsrb

Differential Revision: D18729720

fbshipit-source-id: fb8602ce231eec01b6b42c6759849d56e5db2030
2019-11-27 11:04:30 -08:00
David Tolnay
d1d8fb939a Switch from failure::Fail trait to std::error::Error for errors
Summary:
This diff replaces eden's dependencies on failure::Error with anyhow::Error.

Failure's error type requires all errors to have an implementation of failure's own failure::Fail trait in order for cause chains and backtraces to work. The necessary methods for this functionality have made their way into the standard library error trait, so modern error libraries build directly on std::error::Error rather than something like failure::Fail. Once we are no longer tied to failure 0.1's Fail trait, different parts of the codebase will be free to use any std::error::Error-based libraries they like while still working nicely together.

Reviewed By: xavierd

Differential Revision: D18576093

fbshipit-source-id: e2d862b659450f2969520d9b74877913fabb2e5d
2019-11-22 08:53:31 -08:00
Jun Wu
6b6b6cf36d blackbox: add Event::Tags and its index
Summary:
Add Event::Tags so we can tag commands with one or more names.
Add index for the tags so we can search them more efficiently.

As we're here, update hgcommands to read EDENSCM_BLACKBOX_TAGS and write
Event::Tags automatically just after Event::Start.

Differential Revision: D18610733

fbshipit-source-id: c69b6e3d34b317e92a1c4d76f29e832b6b01c4fa
2019-11-21 08:36:10 -08:00
Jun Wu
f19a760f5f blackbox: remove IndexFilter
Summary: Migrate callsites to use the new pattern matching filtering APIs.

Differential Revision: D18610738

fbshipit-source-id: 242182f4e6a58bbff5dddbb177287921c85519bc
2019-11-21 08:36:09 -08:00
Jun Wu
ec9d925b69 blackbox: add timestamp field to Start and Finish event
Summary:
See the previous diff. As part of migrating away from IndexFilter. There needs
to be a way to filter commands by absolute clock time using pattern matching
against Events.  To achieve that, add the timestamp field to Start and Finish
events.

Differential Revision: D18610735

fbshipit-source-id: 9e1898a87bc93e47d0f0c77342428b5c42ef6f24
2019-11-21 08:36:09 -08:00
David Tolnay
b1793a4416 rust: Rename Fallible<T> to Result<T>
Summary:
This diff is preparation for migrating off of failure::Fail / failure::Error for errors in favor of errors that implement std::error::Error. The Fallible terminology is unique to failure and in non-failure code we should be using Result<T>. To minimize the size of the eventual diff that removes failure, this codemod replaces all use of Fallible with Result by:

- In modules that do not use Result<T, E>, we import `failure::Fallible as Result`;
- In modules that use a mix of Result<T, E> and Fallible<T> (only 5) we define `type Result<T, E = failure::Error> = std::result::Result<T, E>` to allow both Result<T> and Result<T, E> to work simultaneously.

Reviewed By: Imxset21

Differential Revision: D18499758

fbshipit-source-id: 9f5a54c47f81fdeedbc6003cef42a1194eee55bf
2019-11-14 14:11:01 -08:00
Adam Simpkins
ab3a7cb21f Move fb-mercurial sources into an eden/scm subdirectory.
Summary:
In preparation for merging fb-mercurial sources to the Eden repository,
move everything from the top-level directory into an `eden/scm`
subdirectory.
2019-11-13 16:04:48 -08:00