mirror of
https://github.com/go-gitea/gitea.git
synced 2026-11-09 17:37:20 -06:00
a165fdb63c
Gitea binary is an all-in-one program. It doesn't make sense to compile dozens or even hundreds of regexps for git hook sub commands.
84 lines
2.4 KiB
Go
84 lines
2.4 KiB
Go
// Copyright 2022 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package conan
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import (
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"fmt"
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"io"
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"regexp"
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"strings"
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"sync"
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)
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var globalVars = sync.OnceValue(func() (ret struct {
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patternAuthor *regexp.Regexp
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patternHomepage *regexp.Regexp
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patternURL *regexp.Regexp
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patternLicense *regexp.Regexp
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patternDescription *regexp.Regexp
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patternTopics *regexp.Regexp
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patternTopicList *regexp.Regexp
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namePattern *regexp.Regexp
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revisionPattern *regexp.Regexp
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},
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) {
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ret.patternAuthor = compilePattern("author")
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ret.patternHomepage = compilePattern("homepage")
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ret.patternURL = compilePattern("url")
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ret.patternLicense = compilePattern("license")
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ret.patternDescription = compilePattern("description")
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ret.patternTopics = regexp.MustCompile(`(?im)^\s*topics\s*=\s*\((.+)\)`)
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ret.patternTopicList = regexp.MustCompile(`\s*['"](.+?)['"]\s*,?`)
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ret.namePattern = regexp.MustCompile(fmt.Sprintf(`^[a-zA-Z0-9_][a-zA-Z0-9_\+\.-]{%d,%d}$`, minChars-1, maxChars-1))
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ret.revisionPattern = regexp.MustCompile(fmt.Sprintf(`^[a-zA-Z0-9]{1,%d}$`, maxChars))
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return ret
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})
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func compilePattern(name string) *regexp.Regexp {
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return regexp.MustCompile(`(?im)^\s*` + name + `\s*=\s*['"\(](.+)['"\)]`)
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}
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func ParseConanfile(r io.Reader) (*Metadata, error) {
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buf, err := io.ReadAll(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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metadata := &Metadata{}
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m := globalVars().patternAuthor.FindSubmatch(buf)
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if len(m) > 1 && len(m[1]) > 0 {
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metadata.Author = string(m[1])
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}
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m = globalVars().patternHomepage.FindSubmatch(buf)
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if len(m) > 1 && len(m[1]) > 0 {
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metadata.ProjectURL = string(m[1])
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}
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m = globalVars().patternURL.FindSubmatch(buf)
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if len(m) > 1 && len(m[1]) > 0 {
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metadata.RepositoryURL = string(m[1])
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}
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m = globalVars().patternLicense.FindSubmatch(buf)
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if len(m) > 1 && len(m[1]) > 0 {
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metadata.License = strings.ReplaceAll(strings.ReplaceAll(string(m[1]), "'", ""), "\"", "")
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}
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m = globalVars().patternDescription.FindSubmatch(buf)
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if len(m) > 1 && len(m[1]) > 0 {
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metadata.Description = string(m[1])
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}
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m = globalVars().patternTopics.FindSubmatch(buf)
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if len(m) > 1 && len(m[1]) > 0 {
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m2 := globalVars().patternTopicList.FindAllSubmatch(m[1], -1)
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if len(m2) > 0 {
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metadata.Keywords = make([]string, 0, len(m2))
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for _, g := range m2 {
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if len(g) > 1 {
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metadata.Keywords = append(metadata.Keywords, string(g[1]))
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}
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}
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}
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}
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return metadata, nil
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}
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