Merge pull request #112 from brauner/v2
bindings: add runtime version check
Stéphane Graber authored 5 years ago
GitHub committed 5 years ago
| 18 | 18 | import ( |
| 19 | 19 | "fmt" |
| 20 | 20 | "runtime" |
| 21 | "strconv" | |
| 21 | 22 | "strings" |
| 22 | 23 | "unsafe" |
| 23 | 24 | ) |
| 243 | 244 | return bool(C.go_lxc_config_item_is_supported(configItem)) |
| 244 | 245 | } |
| 245 | 246 | |
| 247 | // runtimeLiblxcVersionAtLeast checks if the system's liblxc matches the | |
| 248 | // provided version requirement | |
| 249 | func runtimeLiblxcVersionAtLeast(major int, minor int, micro int) bool { | |
| 250 | version := Version() | |
| 251 | version = strings.Replace(version, " (devel)", "-devel", 1) | |
| 252 | parts := strings.Split(version, ".") | |
| 253 | partsLen := len(parts) | |
| 254 | if partsLen == 0 { | |
| 255 | return false | |
| 256 | } | |
| 257 | ||
| 258 | develParts := strings.Split(parts[partsLen-1], "-") | |
| 259 | if len(develParts) == 2 && develParts[1] == "devel" { | |
| 260 | return true | |
| 261 | } | |
| 262 | ||
| 263 | maj := -1 | |
| 264 | min := -1 | |
| 265 | mic := -1 | |
| 266 | ||
| 267 | for i, v := range parts { | |
| 268 | if i > 2 { | |
| 269 | break | |
| 270 | } | |
| 271 | ||
| 272 | num, err := strconv.Atoi(v) | |
| 273 | if err != nil { | |
| 274 | return false | |
| 275 | } | |
| 276 | ||
| 277 | switch i { | |
| 278 | case 0: | |
| 279 | maj = num | |
| 280 | case 1: | |
| 281 | min = num | |
| 282 | case 2: | |
| 283 | mic = num | |
| 284 | } | |
| 285 | } | |
| 286 | ||
| 287 | /* Major version is greater. */ | |
| 288 | if maj > major { | |
| 289 | return true | |
| 290 | } | |
| 291 | ||
| 292 | if maj < major { | |
| 293 | return false | |
| 294 | } | |
| 295 | ||
| 296 | /* Minor number is greater.*/ | |
| 297 | if min > minor { | |
| 298 | return true | |
| 299 | } | |
| 300 | ||
| 301 | if min < minor { | |
| 302 | return false | |
| 303 | } | |
| 304 | ||
| 305 | /* Patch number is greater. */ | |
| 306 | if mic > micro { | |
| 307 | return true | |
| 308 | } | |
| 309 | ||
| 310 | if mic < micro { | |
| 311 | return false | |
| 312 | } | |
| 313 | ||
| 314 | return true | |
| 315 | } | |
| 316 | ||
| 246 | 317 | // HasApiExtension returns true if the extension is supported. |
| 247 | 318 | func HasApiExtension(extension string) bool { |
| 248 | apiExtension := C.CString(extension) | |
| 249 | defer C.free(unsafe.Pointer(apiExtension)) | |
| 250 | return bool(C.go_lxc_has_api_extension(apiExtension)) | |
| 251 | } | |
| 319 | if runtimeLiblxcVersionAtLeast(3, 1, 0) { | |
| 320 | apiExtension := C.CString(extension) | |
| 321 | defer C.free(unsafe.Pointer(apiExtension)) | |
| 322 | return bool(C.go_lxc_has_api_extension(apiExtension)) | |
| 323 | } | |
| 324 | return false | |
| 325 | } | |