Fernandez Ludovic
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ldez.dev
Fernandez Ludovic
@ldez.dev
140 followers 26 following 17 posts
I'm a community-funded open-source developer.
Core maintainer of Golangci-lint, go-acme/lego, and some open-source projects you may be using 😉
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ldez.dev
We often focus on binary size, but do you know the size of the files inside the module cache for your project?
On a CI, this may lead you to "no space left on device"
I created a small tool to calculate module cache size for a module.

github.com/ldez/gomodca...

#golang
April 25, 2025 at 11:30 AM
ldez.dev
🤔 maybe It works but it need to be uploaded with video button.
December 9, 2024 at 3:12 PM
ldez.dev
I missed that gif doesn't work on Bluesky
run with
December 9, 2024 at 3:06 PM
ldez.dev
Bonus: this linter is go1.24 ready ✨
linters: enable: - usetesting linters-settings: usetesting: # Detects usage of `os.Chdir()` # Disabled if Go < 1.24. os-chdir: true # Detects usage of `context.Background()` # Disabled if Go < 1.24. context-background: true # Detects usage of `context.TODO()` # Disabled if Go < 1.24. context-todo: true
December 9, 2024 at 12:13 PM
ldez.dev
I created a new linter to detect calls which can be replaced by methods from the testing package.
github.com/ldez/usetest...

This new linter will be available in the next version of golangci-lint (v1.63).

Support my work: bento.me/ldez

#golang #golangcilint
> ./golangci-lint run example_test.go:41:18: os.CreateTemp("", ...) could be replaced by os.CreateTemp(t.TempDir(), ...) in TestSample (usetesting) tmpFile, err := os.CreateTemp("", pattern) example_test.go:46:17: os.MkdirTemp() could be replaced by t.TempDir() in TestSample (usetesting) tmpDir, err := os.MkdirTemp("", pattern) example_test.go:51:17: os.TempDir() could be replaced by t.TempDir() in TestSample (usetesting) otherTmpDir := os.TempDir() > linters: enable: - usetesting linters-settings: usetesting: # Detects usage of `os.CreateTemp("", ...)` os-create-temp: true # Detects usage of `os.MkdirTemp()` os-mkdir-temp: true # Detects usage of `os.TempDir()` os-temp-dir: true
December 9, 2024 at 12:13 PM
ldez.dev
I added an option to the `gomoddirectives` linter: it forces the usage of patch 0 (ex: 1.22.0) or go family (ex 1.22) as min go version.

github.com/ldez/gomoddi...

This feature will be available in the next version of golangci-lint (v1.63).

Support my work: bento.me/ldez

#golang #golangcilint
> go mod edit -go=1.22 > ./golangci-lint run go.mod:3:1: go directive (1.22) doesn't match the pattern '\d\.\d+\.0$' (gomoddirectives) go 1.22 > go mod edit -go=1.22.3 > ./golangci-lint run go.mod:3:1: go directive (1.22.3) doesn't match the pattern '\d\.\d+\.0$' (gomoddirectives) go 1.22.3 > go mod edit -go=1.22.0 > ./golangci-lint run linters: enable: - gomoddirectives linters-settings: gomoddirectives: # Defines a pattern to validate `go` directive. go-version-pattern: '\d\.\d+\.0$'
December 4, 2024 at 1:03 PM
ldez.dev
I updated `tagliatelle` linter, you can now define the naming rules of struct tags by package.

github.com/ldez/tagliat...

This new feature will be available in the next version of golangci-lint (v1.63).

Sponsor my work: bento.me/ldez

#golang #golangcilint
Output of the golangci-lint command Example of linter configuration: linters: enable: - tagliatelle linters-settings: tagliatelle: case: rules: json: camel overrides: # Ignore a package. - pkg: my/pkg ignore: true # Use different rules by package. - pkg: my/otherpkg rules: json: snake
December 3, 2024 at 5:02 PM