prometheus

Commit Graph

Author	SHA1	Message	Date
beorn7	5b53aa1108	style: Replace `else if` cascades with `switch` Wiser coders than myself have come to the conclusion that a `switch` statement is almost always superior to a statement that includes any `else if`. The exceptions that I have found in our codebase are just these two: * The `if else` is followed by an additional statement before the next condition (separated by a `;`). * The whole thing is within a `for` loop and `break` statements are used. In this case, using `switch` would require tagging the `for` loop, which probably tips the balance. Why are `switch` statements more readable? For one, fewer curly braces. But more importantly, the conditions all have the same alignment, so the whole thing follows the natural flow of going down a list of conditions. With `else if`, in contrast, all conditions but the first are "hidden" behind `} else if `, harder to spot and (for no good reason) presented differently from the first condition. I'm sure the aforemention wise coders can list even more reasons. In any case, I like it so much that I have found myself recommending it in code reviews. I would like to make it a habit in our code base, without making it a hard requirement that we would test on the CI. But for that, there has to be a role model, so this commit eliminates all `if else` occurrences, unless it is autogenerated code or fits one of the exceptions above. Signed-off-by: beorn7 <beorn@grafana.com>	2 years ago
beorn7	c3c7d44d84	lint: Adjust to the lint warnings raised by current versions of golint-ci We haven't updated golint-ci in our CI yet, but this commit prepares for that. There are a lot of new warnings, and it is mostly because the "revive" linter got updated. I agree with most of the new warnings, mostly around not naming unused function parameters (although it is justified in some cases for documentation purposes – while things like mocks are a good example where not naming the parameter is clearer). I'm pretty upset about the "empty block" warning to include `for` loops. It's such a common pattern to do something in the head of the `for` loop and then have an empty block. There is still an open issue about this: https://github.com/mgechev/revive/issues/810 I have disabled "revive" altogether in files where empty blocks are used excessively, and I have made the effort to add individual `// nolint:revive` where empty blocks are used just once or twice. It's borderline noisy, though, but let's go with it for now. I should mention that none of the "empty block" warnings for `for` loop bodies were legitimate. Signed-off-by: beorn7 <beorn@grafana.com>	2 years ago
Bryan Boreham	6bdecf377c	Switch from 'sanity' to more inclusive lanuage (#9376 ) * Switch from 'sanity' to more inclusive lanuage "Removing ableist language in code is important; it helps to create and maintain an environment that welcomes all developers of all backgrounds, while emphasizing that we as developers select the most articulate, precise, descriptive language we can rather than relying on metaphors. The phrase sanity check is ableist, and unnecessarily references mental health in our code bases. It denotes that people with mental illnesses are inferior, wrong, or incorrect, and the phrase sanity continues to be used by employers and other individuals to discriminate against these people." From https://gist.github.com/seanmhanson/fe370c2d8bd2b3228680e38899baf5cc Signed-off-by: Bryan Boreham <bjboreham@gmail.com>	2 years ago
Matthieu MOREL	0906f2eafa	refactor (promql): move from github.com/pkg/errors to 'errors' and 'fmt' (#10817 ) Signed-off-by: Matthieu MOREL <mmorel-35@users.noreply.github.com> Co-authored-by: Matthieu MOREL <mmorel-35@users.noreply.github.com>	3 years ago
beorn7	c954cd9d1d	Move packages out of deprecated pkg directory This creates a new `model` directory and moves all data-model related packages over there: exemplar labels relabel rulefmt textparse timestamp value All the others are more or less utilities and have been moved to `util`: gate logging modetimevfs pool runtime Signed-off-by: beorn7 <beorn@grafana.com>	3 years ago
Mateusz Gozdek	1a6c2283a3	Format Go source files using 'gofumpt -w -s -extra' Part of #9557 Signed-off-by: Mateusz Gozdek <mgozdekof@gmail.com>	3 years ago
Levi Harrison	4a4882d4c7	Replace godoc.org links Signed-off-by: Levi Harrison <git@leviharrison.dev>	4 years ago
Julius Volz	e313ffa8ab	Fix "instant selector vector" typo in error messages (#8800 ) Signed-off-by: Julius Volz <julius.volz@gmail.com>	4 years ago
Ganesh Vernekar	86c71856e8	Add start() and end() pre-processors for @ modifier (#8425 ) * Add start() and end() pre-processors for @ modifier Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * Fix reviews Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * Fix review comments Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * Fix review comments Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>	4 years ago
Ganesh Vernekar	9199fcb8d1	'@ <timestamp>' modifier (#8121 ) This commit adds `@ <timestamp>` modifier as per this design doc: https://docs.google.com/document/d/1uSbD3T2beM-iX4-Hp7V074bzBRiRNlqUdcWP6JTDQSs/edit. An example query: ``` rate(process_cpu_seconds_total[1m]) and topk(7, rate(process_cpu_seconds_total[1h] @ 1234)) ``` which ranks based on last 1h rate and w.r.t. unix timestamp 1234 but actually plots the 1m rate. Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>	4 years ago
Julien Pivotto	34656bbf8e	PromQL parser: fastpath for non-empty matchers and metric name (#8345 ) Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>	4 years ago
Brian Brazil	bef9d4e182	Don't include rendered expression in parse errors. (#8177 ) For a sufficiently complex expression, having to render thousands of nodes for every subquery type error can take a while - so don't do that. Signed-off-by: Brian Brazil <brian.brazil@robustperception.io>	4 years ago
johncming	267dd17fe7	promql/parser: use pos instead of origin. (#7853 ) Signed-off-by: johncming <johncming@yahoo.com>	4 years ago
Julien Pivotto	1f6f8e60ee	promql/parser: Cleanup generatedParserResult accross reuse Reusing the same generatedParserResult ends up in strange panics: See #7131 and #7127. Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>	5 years ago
Ben Kochie	269e7c8091	Fix golint issues. Signed-off-by: Ben Kochie <superq@gmail.com>	5 years ago
Tobias Guggenmos	012161d90d	PromQL: Fix lexer error handling (#6958 ) * PromQL: Fix lexer error handling This fixes bugs in the handling of lexer errors that are only noticeable for users of the language server and caused https://github.com/prometheus-community/promql-langserver/issues/104 . Signed-off-by: Tobias Guggenmos <tobias.guggenmos@uni-ulm.de> * Add test for error position ranges Signed-off-by: Tobias Guggenmos <tobias.guggenmos@uni-ulm.de>	5 years ago
Julien Pivotto	5ddd1dcf0f	Fix panic when parsing varags (#6940 ) Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>	5 years ago
LongKB	82f7ed208b	Remove some duplicated words (#6882 ) Signed-off-by: Pham Duc Hanh <hanhpd@fujitsu.com>	5 years ago
Tobias Guggenmos	1360f9ff12	Fix all build errors in promql package Signed-off-by: Tobias Guggenmos <tguggenm@redhat.com>	5 years ago
Tobias Guggenmos	ff0ea1c1ac	Fix more identifiers Signed-off-by: Tobias Guggenmos <tguggenm@redhat.com>	5 years ago
Tobias Guggenmos	6b1b323558	Export sequenceValue Signed-off-by: Tobias Guggenmos <tguggenm@redhat.com>	5 years ago
Tobias Guggenmos	65f5b9827d	Rename package Signed-off-by: Tobias Guggenmos <tguggenm@redhat.com>	5 years ago
Tobias Guggenmos	e7c2716f55	Move files Signed-off-by: Tobias Guggenmos <tguggenm@redhat.com>	5 years ago

23 Commits (94d9367bbf13a5325c0d55b22babf56d164f91e1)