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-rw-r--r--modules/packages/conan/conaninfo_parser.go123
1 files changed, 123 insertions, 0 deletions
diff --git a/modules/packages/conan/conaninfo_parser.go b/modules/packages/conan/conaninfo_parser.go
new file mode 100644
index 0000000..de11dbe
--- /dev/null
+++ b/modules/packages/conan/conaninfo_parser.go
@@ -0,0 +1,123 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package conan
+
+import (
+ "bufio"
+ "io"
+ "strings"
+
+ "code.gitea.io/gitea/modules/util"
+)
+
+// Conaninfo represents infos of a Conan package
+type Conaninfo struct {
+ Settings map[string]string `json:"settings"`
+ FullSettings map[string]string `json:"full_settings"`
+ Requires []string `json:"requires"`
+ FullRequires []string `json:"full_requires"`
+ Options map[string]string `json:"options"`
+ FullOptions map[string]string `json:"full_options"`
+ RecipeHash string `json:"recipe_hash"`
+ Environment map[string][]string `json:"environment"`
+}
+
+func ParseConaninfo(r io.Reader) (*Conaninfo, error) {
+ sections, err := readSections(io.LimitReader(r, 1<<20))
+ if err != nil {
+ return nil, err
+ }
+
+ info := &Conaninfo{}
+ for section, lines := range sections {
+ if len(lines) == 0 {
+ continue
+ }
+ switch section {
+ case "settings":
+ info.Settings = toMap(lines)
+ case "full_settings":
+ info.FullSettings = toMap(lines)
+ case "options":
+ info.Options = toMap(lines)
+ case "full_options":
+ info.FullOptions = toMap(lines)
+ case "requires":
+ info.Requires = lines
+ case "full_requires":
+ info.FullRequires = lines
+ case "recipe_hash":
+ info.RecipeHash = lines[0]
+ case "env":
+ info.Environment = toMapArray(lines)
+ }
+ }
+ return info, nil
+}
+
+func readSections(r io.Reader) (map[string][]string, error) {
+ sections := make(map[string][]string)
+
+ section := ""
+ lines := make([]string, 0, 5)
+
+ scanner := bufio.NewScanner(r)
+ for scanner.Scan() {
+ line := strings.TrimSpace(scanner.Text())
+ if strings.HasPrefix(line, "[") && strings.HasSuffix(line, "]") {
+ if section != "" {
+ sections[section] = lines
+ }
+ section = line[1 : len(line)-1]
+ lines = make([]string, 0, 5)
+ continue
+ }
+ if section != "" {
+ if line != "" {
+ lines = append(lines, line)
+ }
+ continue
+ }
+ if line != "" {
+ return nil, util.NewInvalidArgumentErrorf("invalid conaninfo.txt")
+ }
+ }
+ if err := scanner.Err(); err != nil {
+ return nil, err
+ }
+ if section != "" {
+ sections[section] = lines
+ }
+ return sections, nil
+}
+
+func toMap(lines []string) map[string]string {
+ result := make(map[string]string)
+ for _, line := range lines {
+ parts := strings.SplitN(line, "=", 2)
+ if len(parts) != 2 || len(parts[0]) == 0 || len(parts[1]) == 0 {
+ continue
+ }
+ result[parts[0]] = parts[1]
+ }
+ return result
+}
+
+func toMapArray(lines []string) map[string][]string {
+ result := make(map[string][]string)
+ for _, line := range lines {
+ parts := strings.SplitN(line, "=", 2)
+ if len(parts) != 2 || len(parts[0]) == 0 || len(parts[1]) == 0 {
+ continue
+ }
+ var items []string
+ if strings.HasPrefix(parts[1], "[") && strings.HasSuffix(parts[1], "]") {
+ items = strings.Split(parts[1], ",")
+ } else {
+ items = []string{parts[1]}
+ }
+ result[parts[0]] = items
+ }
+ return result
+}