Detection

Combined Detection

`DetectReason(filePath, content string, opts ...FilterOption) FilterReason`

Checks if a file is auto-generated based on filename and content. No I/O — you provide the content. Returns the reason or ReasonNotFiltered.

reason := gogenfilter.DetectReason("db/models.go", content,
    gogenfilter.FilterSQLC,
    gogenfilter.FilterGeneric,
)

`DetectReasonReader(filePath string, r io.Reader, opts ...FilterOption) (FilterReason, error)`

Same as DetectReason but reads from an io.Reader.

r := bytes.NewBufferString(content)
reason, err := gogenfilter.DetectReasonReader("file.go", r, opts...)

Pattern Matching

`MatchPattern(path, pattern string) bool`

Matches a path against a glob pattern using doublestar. Supports * (single segment) and ** (any depth).

gogenfilter.MatchPattern("pkg/mocks/service.go", "**/mocks/*.go") // true

Per-Generator Detection

Each generator has dedicated Is*Generated(filePath, content string) bool functions:

Function	Checks
`IsSQLCGenerated`	Filename + content markers
`IsTemplGenerated`	`_templ.go` suffix + `templ.Component`
`IsGoEnumGenerated`	`_enum.go` suffix + content
`IsProtobufGenerated`	`.pb.go` / `_grpc.pb.go` + content
`IsOapiGenerated`	`oapi-codegen` content marker
`IsDeepcopyGenerated`	Content marker (`deepcopy-gen`)
`IsWireGenerated`	Content marker (`Wire`)
`IsMoqGenerated`	Content marker (`moq`)
`IsMockgenGenerated`	Content marker (`MockGen`)
`IsStringerGenerated`	Content marker (`"stringer"`)
`IsGenericGenerated`	Any `Code generated by` comment

Note: Some generators use filename patterns (e.g., wire_gen.go, _moq.go, zz_generated.*) as a first pass, but the standalone Is*Generated functions check both filename and content where applicable. For the full two-phase detection pipeline with all generators at once, use Filter or DetectReason.