github.com/thrasher-corp/golangci-lint@v1.17.3/pkg/lint/lintersdb/validator.go (about)

     1  package lintersdb
     2  
     3  import (
     4  	"fmt"
     5  	"strings"
     6  
     7  	"github.com/golangci/golangci-lint/pkg/config"
     8  )
     9  
    10  type Validator struct {
    11  	m *Manager
    12  }
    13  
    14  func NewValidator(m *Manager) *Validator {
    15  	return &Validator{
    16  		m: m,
    17  	}
    18  }
    19  
    20  func (v Validator) validateLintersNames(cfg *config.Linters) error {
    21  	allNames := append([]string{}, cfg.Enable...)
    22  	allNames = append(allNames, cfg.Disable...)
    23  	for _, name := range allNames {
    24  		if v.m.GetLinterConfig(name) == nil && v.m.GetMetaLinter(name) == nil {
    25  			return fmt.Errorf("no such linter %q", name)
    26  		}
    27  	}
    28  
    29  	return nil
    30  }
    31  
    32  func (v Validator) validatePresets(cfg *config.Linters) error {
    33  	allPresets := v.m.allPresetsSet()
    34  	for _, p := range cfg.Presets {
    35  		if !allPresets[p] {
    36  			return fmt.Errorf("no such preset %q: only next presets exist: (%s)",
    37  				p, strings.Join(v.m.AllPresets(), "|"))
    38  		}
    39  	}
    40  
    41  	if len(cfg.Presets) != 0 && cfg.EnableAll {
    42  		return fmt.Errorf("--presets is incompatible with --enable-all")
    43  	}
    44  
    45  	return nil
    46  }
    47  
    48  func (v Validator) validateAllDisableEnableOptions(cfg *config.Linters) error {
    49  	if cfg.EnableAll && cfg.DisableAll {
    50  		return fmt.Errorf("--enable-all and --disable-all options must not be combined")
    51  	}
    52  
    53  	if cfg.DisableAll {
    54  		if len(cfg.Enable) == 0 && len(cfg.Presets) == 0 {
    55  			return fmt.Errorf("all linters were disabled, but no one linter was enabled: must enable at least one")
    56  		}
    57  
    58  		if len(cfg.Disable) != 0 {
    59  			return fmt.Errorf("can't combine options --disable-all and --disable %s", cfg.Disable[0])
    60  		}
    61  	}
    62  
    63  	if cfg.EnableAll && len(cfg.Enable) != 0 && !cfg.Fast {
    64  		return fmt.Errorf("can't combine options --enable-all and --enable %s", cfg.Enable[0])
    65  	}
    66  
    67  	return nil
    68  }
    69  
    70  func (v Validator) validateDisabledAndEnabledAtOneMoment(cfg *config.Linters) error {
    71  	enabledLintersSet := map[string]bool{}
    72  	for _, name := range cfg.Enable {
    73  		enabledLintersSet[name] = true
    74  	}
    75  
    76  	for _, name := range cfg.Disable {
    77  		if enabledLintersSet[name] {
    78  			return fmt.Errorf("linter %q can't be disabled and enabled at one moment", name)
    79  		}
    80  	}
    81  
    82  	return nil
    83  }
    84  
    85  func (v Validator) validateEnabledDisabledLintersConfig(cfg *config.Linters) error {
    86  	validators := []func(cfg *config.Linters) error{
    87  		v.validateLintersNames,
    88  		v.validatePresets,
    89  		v.validateAllDisableEnableOptions,
    90  		v.validateDisabledAndEnabledAtOneMoment,
    91  	}
    92  	for _, v := range validators {
    93  		if err := v(cfg); err != nil {
    94  			return err
    95  		}
    96  	}
    97  
    98  	return nil
    99  }