lintmego 0.4.0

Helper for golangci-lint

Lintme

A convenience wrapper around golangci-lint that discovers Go modules in your workspace and runs the linter per module with zero configuration fuss.

Overview

In a Go workspace (go.work) with many modules, running golangci-lint requires cd-ing into each module directory and invoking it separately. lintme automates that loop — one command from anywhere in the workspace lints everything.

Module discovery works with workspaces: when lintme finds a go.work file, it lints every module listed under a use directive, in order. When no go.work exists, it walks up from the current directory until it finds a go.mod and lints that single module.

For each module, lintme also walks up the directory tree to find the nearest .golangci.yaml (or an equivalent config file), so each module can carry its own linter config. Output streams in real time — nothing buffers it.

Requirements

• golangci-lint installed and available on PATH
• Go 1.26 or later

Installation

go install github.com/StevenACoffman/lintme@latest

This places the lintme binary in $GOPATH/bin or $GOBIN. Ensure that directory is on your PATH.

Commands

Running bare lintme defaults to lintme branch — it lints only issues introduced on the current branch since its merge-base with the remote default branch.

lintme branch (Default)

Lint only issues introduced on the current branch.

# Lint issues introduced on the current branch (auto-detects merge-base)
lintme

# Specify the base branch explicitly
lintme branch -B main

# Apply formatting instead of linting
lintme --fmt-only

# Forward extra flags to every golangci-lint invocation
lintme -- --timeout=5m

lintme branch queries git ls-remote --symref origin HEAD to determine the remote default branch without requiring a local checkout. Use -B when there is no remote or the remote is not named origin.

Flag	Default	Description
-B, --base	—	Base branch for the merge-base computation; default: remote HEAD via ls-remote

lintme run

Lint all modules in the workspace, regardless of branch.

# Lint all modules, applying --fix (default)
lintme run

# Check only — do not modify files
lintme run --no-fix

# Format using golangci-lint fmt instead of golangci-lint run
lintme run --fmt-only

# Report only issues introduced since a given commit
lintme run --new-from-rev=main

# Forward extra flags to every golangci-lint invocation
lintme run -- --timeout=5m
lintme run --no-fix -- --timeout=5m --out-format=json

lintme pr

Lint only issues introduced by a GitHub pull request.

# Lint the PR for the current branch (auto-detects PR number)
lintme pr

# Lint a specific PR
lintme pr 123

# With an explicit token and repo
lintme pr --token=$GITHUB_TOKEN --repo=owner/repo 123

When <pr-number> is omitted, lintme pr detects the open PR for the current branch via the GitHub API, matching the behavior of gh pr view.

Flag	Default	Description
--token	$GITHUB_TOKEN	GitHub personal access token
--repo	detected from git remote	Repository as owner/repo
--github-url	$GITHUB_API_URL	GitHub API base URL for GitHub Enterprise

lintme version

Print build and version information.

lintme version         # human-readable table
lintme version --json  # machine-readable JSON

Shared Flags

These flags work with all commands that invoke golangci-lint.

Flag	Default	Description
--no-fix	off	Skip --fix; report issues without modifying files
--fmt-only	off	Run golangci-lint fmt instead of golangci-lint run; mutually exclusive with --no-fix
--new-from-rev=<rev>	—	Pass --new-from-rev=<rev> to every golangci-lint invocation; golangci-lint reports only issues introduced since <rev>

Module and Config Discovery

Module Discovery

lintme walks up from the current directory looking for a go.work file. When it finds one, it lints every module listed under a use directive in declaration order. When no go.work exists, it continues walking up until it finds a go.mod and lints that single module.

Config Discovery

For each module, lintme walks up from the module directory looking for a config file in this priority order:

1. .golangci.yml
2. .golangci.yaml
3. .golangci.toml
4. .golangci.json

The output header for each module shows the resolved path. When no config file exists, golangci-lint runs without --config and applies its own defaults.

Environment Variables

Every flag can also be set via a LINTME_-prefixed environment variable. The mapping rule: prepend LINTME_, uppercase, replace dashes with underscores.

Flag	Environment variable
--no-fix	LINTME_NO_FIX=true
--fmt-only	LINTME_FMT_ONLY=true
--new-from-rev	LINTME_NEW_FROM_REV=<rev>

Flags on the command line always take precedence over environment variables.

Output

==> ./services/auth (github.com/example/myapp/services/auth)  config: ./services/auth/.golangci.yaml
... golangci-lint output ...

==> ./services/payments (github.com/example/myapp/services/payments)  config: no config
... golangci-lint output ...

2/2 modules passed

When a module fails:

==> ./services/payments (github.com/example/myapp/services/payments)  config: no config
./services/payments/handler.go:42:9: unused variable (deadcode)
FAIL  ./services/payments: golangci-lint: exit status 1

1/2 modules passed

Failing modules do not stop remaining modules from linting. lintme exits non-zero if any module fails.

Exit Codes

Code	Meaning
0	All modules passed
1	One or more modules failed

CI Integration

Use --no-fix in CI so the linter reports issues without modifying files.

- name: Lint
  run: lintme --no-fix

License

See LICENSE.