src

config.go (2014B)

---

 package lintcmd
 
 import (
 	"bufio"
 	"errors"
 	"fmt"
 	"io"
 	"strings"
 	"unicode"
 )
 
 type parseBuildConfigError struct {
 	line int
 	err  error
 }
 
 func (err parseBuildConfigError) Error() string { return err.err.Error() }
 
 func parseBuildConfigs(r io.Reader) ([]buildConfig, error) {
 	var builds []buildConfig
 	br := bufio.NewReader(r)
 	i := 0
 	for {
 		line, err := br.ReadString('\n')
 		if err != nil {
 			if err == io.EOF {
 				break
 			} else {
 				return nil, err
 			}
 		}
 		line = strings.TrimSpace(line)
 		if line == "" {
 			continue
 		}
 		name, envs, flags, err := parseBuildConfig(line)
 		if err != nil {
 			return nil, parseBuildConfigError{line: i + 1, err: err}
 		}
 
 		bc := buildConfig{
 			Name:  name,
 			Envs:  envs,
 			Flags: flags,
 		}
 		builds = append(builds, bc)
 
 		i++
 	}
 	return builds, nil
 }
 
 func parseBuildConfig(line string) (name string, envs []string, flags []string, err error) {
 	if line == "" {
 		return "", nil, nil, errors.New("couldn't parse empty build config")
 	}
 	if strings.Index(line, ":") == len(line)-1 {
 		name = line[:len(line)-1]
 	} else {
 		before, after, ok := strings.Cut(line, ": ")
 		if !ok {
 			return name, envs, flags, errors.New("missing build name")
 		}
 		name = before
 
 		var buf []rune
 		var inQuote bool
 		args := &envs
 		for _, r := range strings.TrimSpace(after) {
 			switch r {
 			case ' ':
 				if inQuote {
 					buf = append(buf, r)
 				} else if len(buf) != 0 {
 					if buf[0] == '-' {
 						args = &flags
 					}
 					*args = append(*args, string(buf))
 					buf = buf[:0]
 				}
 			case '"':
 				inQuote = !inQuote
 			default:
 				buf = append(buf, r)
 			}
 		}
 
 		if len(buf) > 0 {
 			if inQuote {
 				return "", nil, nil, errors.New("unterminated quoted string")
 			}
 			if buf[0] == '-' {
 				args = &flags
 			}
 			*args = append(*args, string(buf))
 		}
 	}
 
 	for _, r := range name {
 		if !(r == '_' || unicode.IsLetter(r) || unicode.IsNumber(r)) {
 			return "", nil, nil, fmt.Errorf("invalid build name %q", name)
 		}
 	}
 	return name, envs, flags, nil
 }