info.plist

Question

我正在尝试使用 xmlstartlet 解析 info.plist（对于 iOS 应用程序）。我在 MacBook Pro 上 OSX 中执行此操作。这是我的 info.plist:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>UIRequiresFullScreen</key>
    <true/>
    <key>ITSAppUsesNonExemptEncryption</key>
    <false/>
    <key>UIDeviceFamily</key>
    <array>
        <integer>1</integer>
        <integer>2</integer>
    </array>
    <key>UISupportedInterfaceOrientations</key>
    <array>
        <string>UIInterfaceOrientationLandscapeLeft</string>
        <string>UIInterfaceOrientationLandscapeRight</string>
        <string>UIInterfaceOrientationPortrait</string>
    </array>
    <key>UISupportedInterfaceOrientations~ipad</key>
    <array>
        <string>UIInterfaceOrientationPortrait</string>
        <string>UIInterfaceOrientationPortraitUpsideDown</string>
        <string>UIInterfaceOrientationLandscapeLeft</string>
        <string>UIInterfaceOrientationLandscapeRight</string>
    </array>
    <key>MinimumOSVersion</key>
    <string>9.3</string>
    <key>CFBundleDisplayName</key>
    <string>My iOS App</string>
    <key>CFBundleIdentifier</key>
    <string>local.nowhere.MyiOSApp</string>
    <key>CFBundleShortVersionString</key>
    <string>3.3.0</string>
    <key>NSAppTransportSecurity</key>
    <dict>
        <key>NSAllowsArbitraryLoads</key>
        <true/>
    </dict>
    <key>UISupportedExternalAccessoryProtocols</key>
    <key>UIBackgroundModes</key>
    <array>
        <string>external-accessory</string>
    </array>
    <key>UIAppFonts</key>
    <array>
        <string>FontAwesome.ttf</string>
    </array>
    <key>CFBundleVersion</key>
    <string>321</string>
    <key>NSLocationWhenInUseUsageDescription</key>
    <array>
        <string>Location enabled?</string>
    </array>
    <key>NSCameraUsageDescription</key>
    <string>needs access to the camera</string>
    <key>NSPhotoLibraryUsageDescription</key>
    <string>needs access to photos</string>
    <key>NSCalendarsUsageDescription</key>
    <string>needs access to the calendar</string>
    <key>NSBluetoothPeripheralUsageDescription</key>
    <string>needs access to bluetooth</string>
    <key>UIStatusBarStyle</key>
    <string>UIStatusBarStyleLightContent</string>
    <key>UIViewControllerBasedStatusBarAppearance</key>
    <false/>
    <key>XSAppIconAssets</key>
    <string>Resources/Media.xcassets/AppIcons.appiconset</string>
    <key>XSLaunchImageAssets</key>
    <string>Resources/Media.xcassets/LaunchImages.launchimage</string>
</dict>
</plist>

这是我的 xmlstarlet 命令：

xmlstarlet sel -t -m "/plist/dict[key='CFBundleVersion']" -v string ./Info.plist

这是输出：

Attempt to load network entity http://www.apple.com/DTDs/PropertyList-1.0.dtd
9.3
My iOS App
local.nowhere.MyiOSApp
3.3.0
321
needs access to the camera
needs access to photos
needs access to the calendar
needs access to bluetooth
UIStatusBarStyleLightContent
Resources/Media.xcassets/AppIcons.appiconset
Resources/Media.xcassets/LaunchImages.launchimage

知道为什么它会返回该级别的所有 'string' 节点吗？

Answer 1

您正在匹配 dict 并获取 string 的值，因此它 return 正在 dict 中的所有字符串。

检查是否存在值为 CFBundleVersion 的 key 元素除了 select 和 dict 之外没有任何其他作用（如果为真）。

尝试 selecting key 本身，然后获取第一个后续同级 string...

的值

xmlstarlet sel --net -t -m "/plist/dict/key[.='CFBundleVersion']" -v "following-sibling::string[1]" ./Info.plist

这将 return:

Answer 2

或者对于上面的更快的运行版本（因为我无法对其发表评论），不要查找 DTD 并忽略 STDERR：

xmlstarlet sel -t -m "/plist/dict/key[text()='CFBundleVersion']" -v "following-sibling::string[1]" ./Info.plist 2>/dev/null

info.plist - xmlstarlet 没有 return 指定的节点

info.plist - xmlstarlet does not return specified node

xml

macos

xmlstarlet