`/runbot_merge/stagings`
========================
This endpoint is a reverse lookup from any number of commits to a
(number of) staging(s):
- it takes a list of commit hashes as either the `commits` or the
`heads` keyword parameter
- it then returns the stagings which have *all* these commits as
respectively commits or heads, if providing all commits for a
project the result should always be unique (if any)
- `commits` are the merged commits, aka the stuff which ends up in the
actual branches
- `heads` are the staging heads, aka the commits at the tip of the
`staging.$name` branches, those may be the same as the corresponding
commit, or might be deduplicator commits which get discarded on
success
`/runbot_merge/stagings/:id`
============================
Returns a list of all PRs in the staging, grouped by batch (aka PRs
which have the same label and must be merged together).
For each PR, the `repository` name, `number`, and `name` in the form
`$repository#$number` get returned.
`/runbot_merge/stagings/:id1/:id2`
==================================
Returns a list of all the *successfully merged* stagings between `id1`
and `id2`, from oldest to most recent. Individual records have the
form:
- `staging` is the id of the staging
- `prs` is the contents of the previous endpoint (a list of PRs
grouped by batch)
`id1` *must* be lower than `id2`.
By default, this endpoint is inclusive on both ends, the
`include_from` and / or `include_to` parameters can be passed with the
`False` value to exclude the corresponding bound from the result.
Related to #768
`auto_session_tracking` causes issues when not specified on the super
old version of the client which is available on ubuntu.
Also disable tracing as it seems less useful than hoped for, and I've
not been using what's been collected so far.
Currently the heads of a staging (both staging heads and merged heads)
are just JSON data on the staging itself. Historically this was
convenient as the heads were mostly of use to the staging process, and
thus accessed directly through the staging essentially exclusively.
However this makes finding stagings from merged commits e.g. for
forensic research almost impossible, because querying based on
the *values* of a JSON map is expensive, and indexing it is difficult.
To make this use case more feasible, split the `heads` field into two
join tables, one for the staging heads and one for the merged heads,
this makes looking for stagings by commits much more
efficient (although the queries may not be trivial). Also add two
utility RPC methods, so that it's possible to query stagings
reasonably easily and efficiently based on a set of commits (branch
heads).
related to #768
Allow filtering stagings by state (success or failure), and provide a
control to explicitly update the staging date limit.
Should make it easier to drill through stagings when looking for
specific information.
Related to #751
Fix outstanding query to make a positive `state` filtering, instead of
negative, matching 3b52b1aace8674259812a76b1566260937dbcacb.
Also manually create a map of stagings (grouped by branch) sharing a
single prefetch set.
For odoo the mergebot home page has 12 branches in the odoo project
and 8 in spreadsheet, 6 stagings each. This means 120 queries to
retrieve all the heads (Odoo stagings have 5 heads and spreadsheet
have 1, but that seems immaterial).
By fixing `_compute_statuses` and creating a single prefetch set for
all stagings of all branches we can fetch all the commits in a single
query instead of 120.
- add support for authorship (not just approval)
- make display counts directly
- fix `state` filter: postgres can't do negative index lookups
- add indexes for author and reviewed_by as we look them up
- ensure we handle the entire source filtering via a single subquery
Closes#778
Before this, when testing in parallel (using xdist) each worker would
create its own template database (per module, so 2) then would copy
the database for each test.
This is pretty inefficient as the init of a db is quite expensive in
CPU, and when increasing the number of workers (as the test suite is
rather IO bound) this would trigger a stampede as every worker would
try to create a template at the start of the test suite, leading to
extremely high loads and degraded host performances (e.g. 16 workers
would cause a load of 20 on a 4 cores 8 thread machine, which makes
its use difficult).
Instead we can have a lockfile at a known location of the filesystem,
the first worker to need a template for a module install locks it,
creates the templates, then writes the template's name to the
lockfile.
Every other worker can then lock the lockfile and read the name out,
using the db for duplication.
Note: needs to use `os.open` because the modes of `open` apparently
can't express "open at offset 0 for reading or create for writing",
`r+` refuses to create the file, `w+` still truncates, and `a+` is
undocumented and might not allow seeking back to the start on all
systems so better avoid it.
The implementation would be simplified by using `lockfile` but that's
an additional dependency plus it's deprecated. It recommends
`fasteners` but that seems to suck (not clear if storing stuff in the
lockfile is supported, it opens the lockfile in append mode). Here the
lockfiles are sufficient to do the entire thing.
Conveniently, this turns out to improve *both* walltime CPU time
compared to the original version, likely because while workers now
have to wait on whoever is creating the template they're not competing
for resources with it.
A few cases of conflict were missing from the provisioning
handler.
They can't really be auto-fixed, so just output a warning and ignore
the entry, that way the rest of the provisioning succeeds.
During the 16.3 freeze an issue was noticed with the concurrency
safety of the freeze wizard (because it blew up, which caused a few
issues): it is possible for the cancelling of an active staging to the
master branch to fail, which causes the mergebot side of the freeze to
fail, but the github state is completed, which puts the entire thing
in a less than ideal state.
Especially with the additional issue that the branch inserter has its
own concurrency issue (which maybe I should fix): if there are
branches *being* forward-ported across the new branch, it's unable to
see them, and thus can not create the now-missing PRs.
Try to make the freeze wizard more resilient:
1. Take a lock on the master staging (if any) early on, this means if
we can acquire it we should be able to cancel it, and it won't
suffer a concurrency error.
2. Add the `process_updated_commits` cron to the set of locked crons,
trying to read the log timeline it looks like the issue was commits
being impacted on that staging while the action had started:
REPEATABLE READ meant the freeze's transaction was unable to see
the update from the commit statuses, therefore creating a diverging
update when it cancelled the staging, which postgres then reported
as a serialization error.
I'd like to relax the locking of the cron (to just FOR SHARE), but I
think it would work, per postgres:
> SELECT FOR UPDATE, and SELECT FOR SHARE commands behave the same as
> SELECT in terms of searching for target rows: they will only find
> target rows that were committed as of the transaction start
> time. However, such a target row might have already been updated (or
> deleted or locked) by another concurrent transaction by the time it
> is found. In this case, the repeatable read transaction will wait
> for the first updating transaction to commit or roll back (if it is
> still in progress). If the first updater rolls back, then its
> effects are negated and the repeatable read transaction can proceed
> with updating the originally found row. But if the first updater
> commits (and actually updated or deleted the row, not just locked
> it) then the repeatable read transaction will be rolled back with
> the message
This means it would be possible to lock the cron, and then get a
transaction error because the cron modified one of the records we're
going to hit while it was running: as far as the above is concerned
the cron's worker had "just locked" the row so it's fine to
continue. However this makes it more and more likely an error will be
hit when trying to freeze (to no issue, but still). We'll have to see
how that ends up.
Fixes#766 maybe
Currently sentry is only hooked from the outside, which doesn't
necessarily provide sufficiently actionable information.
Add some a few hooks to (try and) report odoo / mergebot metadata:
- add the user to WSGI transactions
- add a transaction (with users) around crons
- add the webhook event info to webhook requests
- add a few spans to the long-running crons, when they cover multiple
units per iteration (e.g. a span per branch being staged)
Closes#544
- move sentry configuration and add exception-based filtering
- clarify and reclassify (e.g. from warning to info) a few messages
- convert assertions in rebase to MergeError so they can be correctly
logged & reported, and ignored by sentry, also clarify them
(especially the consistency one)
Related to #544
Largely informed by sentry,
- Fix an inconsistency in staging ref verification, `set_ref`
internally waits for the observed head to match the requested head,
but then `try_staging` would re-check that and immediately fail if
it didn't.
Because github is *eventually* consistent (hopefully) this second
check can fail (and is also an extra API call), breaking staging
unnecessarily, especially as we're still going to wait for the
update to be visible to git.
Remove this redundant check entirely, as github provides no way to
ensure we have a consistent view of anything, it doesn't have much
value and can do much harm.
- Add github request id to one of the sanity check warnings as that
could be a useful thing to send upstream, missing github request ids
in the future should be noted and added.
- Reworked the GH object's calls to be clearer and more coherent:
consistently log the same thing on all GH errors (if `check`),
rather than just on the one without a `check` entry.
Also remove `raise_for_status` and raise `HTTPError` by hand every
time we hit a status >= 400, so we always forward the response body
no matter what its type is.
- Try again to log the request body (in full as it should be pretty
small), also remove stripping since we specifically wanted to add a
newline at the start, I've no idea what I was thinking.
Fixes#735, #764, #544
Current system makes it hard to iterate feedback messages and make
them clearer, this should improve things a touch.
Use a bespoke model to avoid concerns with qweb rendering
complexity (we just want GFM output and should not need logic).
Also update fwbot test setup to always configure an fwbot name, in
order to avoid ping messages closing the PRs they're talking
about, that took a while to debug, and given the old message I assume
I'd already hit it and just been too lazy to fix. This requires
updating a bunch of tests as fwbot ping are sent *to*
`fp_github_name`, but sent *from* the reference user (because that's
the key we set).
Note: noupdate on CSV files doesn't seem to work anymore, which isn't
great. But instead set tracking on the template's templates, it's not
quite as good but should be sufficient.
Fixes#769
I'd been convinced this was an ORM error because the field is not
recursive... in runbot_merge, in forwardbot it is and thus does indeed
need to be flagged to avoid the warning.
- currently disabling staging only works globally, allow disabling on
a single branch
- use a toggle
- remove a pair of tests which work specifically with `fp_target`,
can't work with `active` (probably)
- cleanup search of possible and active stagings, add relevant
indexes and use direct search of relevant branches instead of
looking up from the project
- also use toggle button for `active` on branches
- shitty workaround for upgrading DB: apparently mail really wants to
have a `user_id` to do some weird thing, so need to re-add it after
resetting everything
Fixes#727
- github logins are case-insensitive while the db field is CI the dict
in which partners are stored for matching is not, And the caller may
not preserve casing.
Thus it's necessary to check the casefolded database values against
casefolded parameters, rather than exactly.
- users may get disabled by mistake or when one leaves the project,
they may also get switched from internal to portal, therefore it is
necessary to re-enable and re-enroll them if they come back.
- while at it remove the user's email when they depart, as they likely
use an organisational email which they don't have access to anymore
Side-note, but remove the limit on the number of users / partners
being created at once: because there are almost no modules in the
mergebot's instance, creating partner goes quite fast (compared to a
full instance), thus the limitation is almost certainly unnecessary
(creating ~300 users seems to take ~450ms).
Fixes ##776
652b1ff9ae wanted to check if a request
was available, however it deref'd the `request` object without
checking it which is not correct: a `request` normally has an
`httprequest`, but the `request` itself might be missing if the
handler is called from e.g. a cron.
Fixes#739
Firefox blocks downloads from http link if you are on an https page
Allow to deactivate via an ICP in case the runbot is configured over
HTTP (you shouldn't really)
When the runbot tries to drop a local database, if the that raises an
exception, it goes in a loop failure. It mays happen for example if
someone forgot to close a psql during an investigation :-)
With this commit, the exceptions are catched and at least the database
name is logged.
Since all versions will have a defined dockerfile, the project one
will alway be ignored. The idea here is that for a project, we may
definea default dockerfile_id so that we don't have to set it on all
bundle to make it work.
The _kill method was called in multiple case, usually when something
wrong happen:
- exception initiating pending
- kill requested manually
- testing time exceeded
- exception running a job
- ...
But it will also be called when killing a running build.
It was usually not an issue since the status remains the same, but it is
not true if the same commit is used in two build, the new one is green,
the old one is red (enterprise commit remaining the same but community
commit changed as an example)
In this situation, the enterprise commit may receive the red ci from the
old build while the last one is green.
Since with the last version, the github status responsibility is left to
write method, this github status is not useful anymore, updating the
state and result is enough.
This commit also removes the commit since it is not always a god idea.
Most of the time the transaction will be comited quite fast after that
with the new scheduler.
Note that checking in github status if no status has a more recent build
may be a good idea. Only the most recent build using a commit could
sending a status? This would not alway be helpful Imagine a commit used
in 2 branches by mistake, the last build is not always the one we want
(usually fixed by rebuilding a subbuild of the good build)
In some case, a build can add a lot of info in a log, there
is already a limit to the number of entry but not to the size of an
entry. This will limit the database usage in case of mistake/abuse.
When filtering bundles in the frontend, the user is not able to search
for its final trigram because of the `like`search.
With this commit, if the search contains a `%` symbol, the `=like`
operator is used permitting more accurate searches.
With this commit, a custom widget is added to go to the reunbot frontend
from a Char field. This allows to go from the bundle backend page to the
bundle frontend page wich is more useful in some situations.
e.g.: when creating a custom trigger with the wizard, this allows to
test the trigger with 2 clicks.
* show only the all builds tab
* hide linked errors tab when there is no linked errors
* hide error history tab when there is no history
* add some readonly
