Turn on the golangci-lint exhaustive linter. This is the first step
towards catching more missing cases during development rather than
in tests, or in production.
This might be best reviewed commit-by-commit, as the first commit turns
on the linter with the `default-signifies-exhaustive: true` option set,
which requires a lot less changes in the current codebase.
I think it's probably worth doing the second commit as well, as that
will get us the real benefits, even though we end up with a little bit
more churn. However it means all the `switch` statements are covered,
which isn't the case after the first commit, since we do have a lot of
`default` statements that just call `assert.Fail`.
Fixes#14601
## Checklist
- [x] I have run `make tidy` to update any new dependencies
- [x] I have run `make lint` to verify my code passes the lint check
- [x] I have formatted my code using `gofumpt`
<!--- Please provide details if the checkbox below is to be left
unchecked. -->
- [ ] I have added tests that prove my fix is effective or that my
feature works
<!---
User-facing changes require a CHANGELOG entry.
-->
- [ ] I have run `make changelog` and committed the
`changelog/pending/<file>` documenting my change
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then the service should honor older versions of the CLI where this
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You must then bump the API version in
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- [ ] Yes, there are changes in this PR that warrants bumping the Pulumi
Cloud API version
<!-- @Pulumi employees: If yes, you must submit corresponding changes in
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# Description
<!--- Please include a summary of the change and which issue is fixed.
Please also include relevant motivation and context. -->
Prompted by a comment in another review:
https://github.com/pulumi/pulumi/pull/14654#discussion_r1419995945
This lints that we don't use `fmt.Errorf` when `errors.New` will
suffice, it also covers a load of other cases where `Sprintf` is
sub-optimal.
Most of these edits were made by running `perfsprint --fix`.
## Checklist
- [x] I have run `make tidy` to update any new dependencies
- [x] I have run `make lint` to verify my code passes the lint check
- [x] I have formatted my code using `gofumpt`
<!--- Please provide details if the checkbox below is to be left
unchecked. -->
- [ ] I have added tests that prove my fix is effective or that my
feature works
<!---
User-facing changes require a CHANGELOG entry.
-->
- [ ] I have run `make changelog` and committed the
`changelog/pending/<file>` documenting my change
<!--
If the change(s) in this PR is a modification of an existing call to the
Pulumi Cloud,
then the service should honor older versions of the CLI where this
change would not exist.
You must then bump the API version in
/pkg/backend/httpstate/client/api.go, as well as add
it to the service.
-->
- [ ] Yes, there are changes in this PR that warrants bumping the Pulumi
Cloud API version
<!-- @Pulumi employees: If yes, you must submit corresponding changes in
the service repo. -->
Per team discussion, switching to gofumpt.
[gofumpt][1] is an alternative, stricter alternative to gofmt.
It addresses other stylistic concerns that gofmt doesn't yet cover.
[1]: https://github.com/mvdan/gofumpt
See the full list of [Added rules][2], but it includes:
- Dropping empty lines around function bodies
- Dropping unnecessary variable grouping when there's only one variable
- Ensuring an empty line between multi-line functions
- simplification (`-s` in gofmt) is always enabled
- Ensuring multi-line function signatures end with
`) {` on a separate line.
[2]: https://github.com/mvdan/gofumpt#Added-rules
gofumpt is stricter, but there's no lock-in.
All gofumpt output is valid gofmt output,
so if we decide we don't like it, it's easy to switch back
without any code changes.
gofumpt support is built into the tooling we use for development
so this won't change development workflows.
- golangci-lint includes a gofumpt check (enabled in this PR)
- gopls, the LSP for Go, includes a gofumpt option
(see [installation instrutions][3])
[3]: https://github.com/mvdan/gofumpt#installation
This change was generated by running:
```bash
gofumpt -w $(rg --files -g '*.go' | rg -v testdata | rg -v compilation_error)
```
The following files were manually tweaked afterwards:
- pkg/cmd/pulumi/stack_change_secrets_provider.go:
one of the lines overflowed and had comments in an inconvenient place
- pkg/cmd/pulumi/destroy.go:
`var x T = y` where `T` wasn't necessary
- pkg/cmd/pulumi/policy_new.go:
long line because of error message
- pkg/backend/snapshot_test.go:
long line trying to assign three variables in the same assignment
I have included mention of gofumpt in the CONTRIBUTING.md.
This replaces for loops and slice appends reported by gosimple
with simpler variants.
Specifically,
for _, x := range src {
dst = append(dst, x)
}
// can be replaced with
dst = append(dst, src...)
And,
for i, x := range src {
dst[i] = x
}
// can be replaced with
copy(dst, src)
And,
for true { ... }
// can be replaced with
for { ... }
And, given a string `s`,
for _, r := range []rune(s) { .. }
// can be replaced with
for _, r := range s { .. }
Lastly, this fixes in ineffective break statement
also reported by the linter.
Inside a switch block,
`break` affects the current `case` only.
The outer loop needs a label.
Just what it says on the tin. Currently it's not possible to create a
valid value of this type because the `bytes` field is unexported. This
constructor fixes that.
In general, each item in an HCL2 body must be followed by a trailing
newline. The printer did not properly insert these newlines for body
items without any associated tokens/trivia, or with trivia that did not
include a trailing new line.
Related to #1635.
The tokens that make up the "key" portion of an index traversal
(e.g. `"foo"` in `a["foo"]`) are structured like those that make up a
block label: an open quote token, a string literal token, and a close
quote token. The token mapper did not account for that fact, and instead
recorded the key token as the open quote. These changes correct that
error, and adjust the code in `literalText` to allow for
properly-escaped and quoted strings where necessary.
- Define `null` in Pulumi HCL2
- Bind Pulumi HCL2 in topological order s.t. variable types can be
properly computed
- Fix resources that range over bools and numbers
- Add element, length, lookup, readFile, and split functions
- Do not rewrite function signatures with input types during binding
- Fix splat expression binding for non-lists
- Add support for evaluating expressions
- Add support for operator precedence to code generators
- Add support for constants to the HCL2 IR
- Add support for generating ranged resources in Python
- Add support for generating conditional resource in Node and Python
- Fix various naming issues in Python
- Parentheses were not handled properly
- Literals inside of template control sequences were not handled
properly
These changes also improve test coverage for the printers.