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| 1 | +/* |
| 2 | + * Copyright (c) 2025 The GoPlus Authors (goplus.org). All rights reserved. |
| 3 | + * |
| 4 | + * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | + * you may not use this file except in compliance with the License. |
| 6 | + * You may obtain a copy of the License at |
| 7 | + * |
| 8 | + * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | + * |
| 10 | + * Unless required by applicable law or agreed to in writing, software |
| 11 | + * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | + * See the License for the specific language governing permissions and |
| 14 | + * limitations under the License. |
| 15 | + */ |
| 16 | + |
| 17 | +package cpgithubpkg |
| 18 | + |
| 19 | +import ( |
| 20 | + "log" |
| 21 | + "os" |
| 22 | + "os/exec" |
| 23 | + "slices" |
| 24 | + "strings" |
| 25 | + |
| 26 | + "github.com/goccy/go-yaml" |
| 27 | + "golang.org/x/mod/semver" |
| 28 | +) |
| 29 | + |
| 30 | +type version struct { |
| 31 | + Folder string `yaml:"folder"` |
| 32 | +} |
| 33 | + |
| 34 | +type config struct { |
| 35 | + Versions map[string]version `yaml:"versions"` |
| 36 | +} |
| 37 | + |
| 38 | +type template struct { |
| 39 | + FromVer string `yaml:"from"` |
| 40 | + Folder string `yaml:"folder"` |
| 41 | + Tag string `yaml:"tag,omitempty"` // pattern with *, empty if dynamic tag |
| 42 | +} |
| 43 | + |
| 44 | +type configEx struct { |
| 45 | + PkgName string `yaml:"name"` |
| 46 | + Versions map[string]version `yaml:"versions"` |
| 47 | + Template template `yaml:"template"` |
| 48 | +} |
| 49 | + |
| 50 | +// Main is the entry point for copying GitHub packages. |
| 51 | +func Main(pkgName string) { |
| 52 | + localDir := conanRoot() + "recipes/" + pkgName + "/" |
| 53 | + |
| 54 | + confFile := localDir + "config.yml" |
| 55 | + b, err := os.ReadFile(confFile) |
| 56 | + check(err) |
| 57 | + |
| 58 | + var conf config |
| 59 | + err = yaml.Unmarshal(b, &conf) |
| 60 | + check(err) |
| 61 | + |
| 62 | + tryCp := func(src map[string]any, ver string, v version) { |
| 63 | + switch url := src["url"].(type) { |
| 64 | + case string: |
| 65 | + if pkgPath, tagPattern, ok := checkGithbPkg(url, ver); ok { |
| 66 | + cpGithubPkg(pkgName, pkgPath, tagPattern, localDir, conf, ver, v) |
| 67 | + } |
| 68 | + case []any: |
| 69 | + for _, u := range url { |
| 70 | + url := u.(string) |
| 71 | + if pkgPath, tagPattern, ok := checkGithbPkg(url, ver); ok { |
| 72 | + cpGithubPkg(pkgName, pkgPath, tagPattern, localDir, conf, ver, v) |
| 73 | + } |
| 74 | + } |
| 75 | + default: |
| 76 | + log.Println("[INFO] skip source:", src) |
| 77 | + } |
| 78 | + } |
| 79 | + |
| 80 | + conandatas := make(map[string]conandata) // folder -> conandata |
| 81 | + rangeVerDesc(conf.Versions, func(ver string, v version) { |
| 82 | + cd, err := getConanData(conandatas, v.Folder, localDir) |
| 83 | + if err != nil { |
| 84 | + if os.IsNotExist(err) { |
| 85 | + return |
| 86 | + } |
| 87 | + check(err) |
| 88 | + } |
| 89 | + |
| 90 | + if src, ok := cd.Sources[ver]; ok { |
| 91 | + switch src := src.(type) { |
| 92 | + case map[string]any: |
| 93 | + tryCp(src, ver, v) |
| 94 | + case []any: |
| 95 | + for _, u := range src { |
| 96 | + tryCp(u.(map[string]any), ver, v) |
| 97 | + } |
| 98 | + default: |
| 99 | + log.Panicln("[FATAL] source:", src) |
| 100 | + } |
| 101 | + } |
| 102 | + }) |
| 103 | +} |
| 104 | + |
| 105 | +func cpGithubPkg(pkgName, pkgPath, tagPattern, srcDir string, conf config, fromVer string, v version) { |
| 106 | + destDir := cppkgRoot() + pkgPath |
| 107 | + os.MkdirAll(destDir, os.ModePerm) |
| 108 | + |
| 109 | + err := exec.Command("cp", "-r", srcDir, destDir).Run() |
| 110 | + check(err) |
| 111 | + |
| 112 | + confex := &configEx{ |
| 113 | + PkgName: pkgName, |
| 114 | + Versions: conf.Versions, |
| 115 | + Template: template{ |
| 116 | + FromVer: fromVer, |
| 117 | + Folder: v.Folder, |
| 118 | + Tag: tagPattern, |
| 119 | + }, |
| 120 | + } |
| 121 | + b, err := yaml.Marshal(confex) |
| 122 | + check(err) |
| 123 | + |
| 124 | + err = os.WriteFile(destDir+"/config.yml", b, os.ModePerm) |
| 125 | + check(err) |
| 126 | + |
| 127 | + log.Println("[INFO] copy", pkgPath) |
| 128 | + os.Exit(0) |
| 129 | +} |
| 130 | + |
| 131 | +func checkGithbPkg(url, ver string) (pkgPath, tagPattern string, ok bool) { |
| 132 | + const githubPrefix = "https://github.com/" |
| 133 | + if strings.HasPrefix(url, githubPrefix) { |
| 134 | + path := url[len(githubPrefix):] |
| 135 | + parts := strings.SplitN(path, "/", 3) |
| 136 | + if len(parts) == 3 { // user/repo/xxx |
| 137 | + if pos := strings.Index(parts[2], ver); pos >= 0 { |
| 138 | + userRepo := parts[0] + "/" + parts[1] |
| 139 | + at := len(githubPrefix) + len(userRepo) + 1 + pos |
| 140 | + tagPattern = tagPatternOf(url, ver, at) |
| 141 | + pkgPath, ok = strings.ToLower(userRepo), true |
| 142 | + } |
| 143 | + } |
| 144 | + } |
| 145 | + return |
| 146 | +} |
| 147 | + |
| 148 | +func tagPatternOf(url, ver string, at int) (tagPattern string) { |
| 149 | + var tag string |
| 150 | + if pos := strings.LastIndexByte(url[:at], '/'); pos >= 0 { |
| 151 | + last := at + len(ver) |
| 152 | + left := url[last:] |
| 153 | + if end, ok := checkTagEnd(left); ok { |
| 154 | + pos++ |
| 155 | + tag = url[pos:last] |
| 156 | + tagPattern = url[pos:at] + end |
| 157 | + } |
| 158 | + } |
| 159 | + if tag == "" { |
| 160 | + log.Println("[INFO] dynamic tag found:", url) |
| 161 | + } |
| 162 | + return |
| 163 | +} |
| 164 | + |
| 165 | +func checkTagEnd(left string) (end string, ok bool) { |
| 166 | + if n := len(left); n > 0 { |
| 167 | + if left[0] == '/' { |
| 168 | + return "*", true |
| 169 | + } |
| 170 | + if n >= 4 && left[0] == '.' { |
| 171 | + ext := left[1:4] |
| 172 | + return "*", ext == "tar" || ext == "zip" || ext == "tgz" |
| 173 | + } |
| 174 | + if strings.HasPrefix(left, "-stable.") { |
| 175 | + return "*-stable", true |
| 176 | + } |
| 177 | + } |
| 178 | + return "", false |
| 179 | +} |
| 180 | + |
| 181 | +type conandata struct { |
| 182 | + Sources map[string]any `yaml:"sources"` |
| 183 | +} |
| 184 | + |
| 185 | +func getConanData(conandatas map[string]conandata, folder, localDir string) (ret conandata, err error) { |
| 186 | + if v, ok := conandatas[folder]; ok { |
| 187 | + return v, nil |
| 188 | + } |
| 189 | + file := localDir + folder + "/conandata.yml" |
| 190 | + b, err := os.ReadFile(file) |
| 191 | + if err != nil { |
| 192 | + return |
| 193 | + } |
| 194 | + if err = yaml.Unmarshal(b, &ret); err != nil { |
| 195 | + return |
| 196 | + } |
| 197 | + conandatas[folder] = ret |
| 198 | + return |
| 199 | +} |
| 200 | + |
| 201 | +func rangeVerDesc[V any](data map[string]V, f func(string, V)) { |
| 202 | + keys := make([]string, 0, len(data)) |
| 203 | + for k := range data { |
| 204 | + keys = append(keys, "v"+k) |
| 205 | + } |
| 206 | + semver.Sort(keys) |
| 207 | + for _, k := range slices.Backward(keys) { |
| 208 | + k = k[1:] // remove 'v' |
| 209 | + f(k, data[k]) |
| 210 | + } |
| 211 | +} |
| 212 | + |
| 213 | +func conanRoot() string { |
| 214 | + home, _ := os.UserHomeDir() |
| 215 | + return home + "/conan-center-index/" |
| 216 | +} |
| 217 | + |
| 218 | +func cppkgRoot() string { |
| 219 | + home, _ := os.UserHomeDir() |
| 220 | + return home + "/cppkg/" |
| 221 | +} |
| 222 | + |
| 223 | +func check(err error) { |
| 224 | + if err != nil { |
| 225 | + panic(err) |
| 226 | + } |
| 227 | +} |
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