124 lines
2.9 KiB
Go
124 lines
2.9 KiB
Go
// Copyright 2022 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package conan
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import (
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"bufio"
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"errors"
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"io"
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"strings"
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)
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// Conaninfo represents infos of a Conan package
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type Conaninfo struct {
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Settings map[string]string `json:"settings"`
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FullSettings map[string]string `json:"full_settings"`
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Requires []string `json:"requires"`
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FullRequires []string `json:"full_requires"`
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Options map[string]string `json:"options"`
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FullOptions map[string]string `json:"full_options"`
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RecipeHash string `json:"recipe_hash"`
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Environment map[string][]string `json:"environment"`
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}
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func ParseConaninfo(r io.Reader) (*Conaninfo, error) {
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sections, err := readSections(io.LimitReader(r, 1<<20))
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if err != nil {
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return nil, err
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}
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info := &Conaninfo{}
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for section, lines := range sections {
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if len(lines) == 0 {
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continue
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}
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switch section {
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case "settings":
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info.Settings = toMap(lines)
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case "full_settings":
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info.FullSettings = toMap(lines)
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case "options":
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info.Options = toMap(lines)
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case "full_options":
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info.FullOptions = toMap(lines)
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case "requires":
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info.Requires = lines
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case "full_requires":
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info.FullRequires = lines
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case "recipe_hash":
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info.RecipeHash = lines[0]
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case "env":
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info.Environment = toMapArray(lines)
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}
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}
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return info, nil
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}
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func readSections(r io.Reader) (map[string][]string, error) {
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sections := make(map[string][]string)
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section := ""
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lines := make([]string, 0, 5)
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scanner := bufio.NewScanner(r)
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for scanner.Scan() {
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line := strings.TrimSpace(scanner.Text())
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if strings.HasPrefix(line, "[") && strings.HasSuffix(line, "]") {
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if section != "" {
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sections[section] = lines
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}
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section = line[1 : len(line)-1]
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lines = make([]string, 0, 5)
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continue
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}
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if section != "" {
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if line != "" {
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lines = append(lines, line)
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}
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continue
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}
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if line != "" {
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return nil, errors.New("Invalid conaninfo.txt")
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}
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}
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if err := scanner.Err(); err != nil {
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return nil, err
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}
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if section != "" {
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sections[section] = lines
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}
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return sections, nil
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}
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func toMap(lines []string) map[string]string {
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result := make(map[string]string)
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for _, line := range lines {
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parts := strings.SplitN(line, "=", 2)
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if len(parts) != 2 || len(parts[0]) == 0 || len(parts[1]) == 0 {
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continue
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}
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result[parts[0]] = parts[1]
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}
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return result
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}
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func toMapArray(lines []string) map[string][]string {
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result := make(map[string][]string)
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for _, line := range lines {
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parts := strings.SplitN(line, "=", 2)
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if len(parts) != 2 || len(parts[0]) == 0 || len(parts[1]) == 0 {
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continue
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}
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var items []string
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if strings.HasPrefix(parts[1], "[") && strings.HasSuffix(parts[1], "]") {
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items = strings.Split(parts[1], ",")
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} else {
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items = []string{parts[1]}
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}
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result[parts[0]] = items
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}
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return result
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}
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