目前我正在使用这个代码
/usr/libexec/PlistBuddy -c "Set PreferenceSpecifiers:1:DefaultValue $productVersion" "Test/Settings.bundle/Root.plist"
在构建阶段的脚本部分将产品版本放在应用程序设置的只读字段中.该字段具有首选项数组的位置1(从0开始).
我问是否有可能使用更强大的1来访问该领域,因为在开发期间,我或其他开发人员可能会意外改变位置.
无论其位置如何,我可以访问指定它的标识符的元素吗?
为了更好地解释我的需要,我写下了一个例子.我需要像1.2.345这样的数组的第二个字符串的字符串节点,我需要从0.0.0变为1.2.345.是否可以访问dict节点,而不表示它是数组中的第二个?我要求类似于在PlistBuddy中使用的xpath表达式(如果有的话).
<?xml version="1.0" encoding="UTF-8"?> <dict> <key>PreferenceSpecifiers</key> <array> <dict> <key>Title</key> <string>Application info</string> <key>Type</key> <string>PSGroupSpecifier</string> </dict> <dict> <key>DefaultValue</key> <string>0.0.0</string> <key>Key</key> <string>version</string> <key>Title</key> <string>Version</string> <key>Type</key> <string>PSTitleValueSpecifier</string> </dict> <dict> <key>DefaultValue</key> <string>0</string> <key>Key</key> <string>build</string> <key>Title</key> <string>Build</string> <key>Type</key> <string>PSTitleValueSpecifier</string> </dict> ...
解决方法
#!/bin/tcsh set productVersion="1.2.345" set theFile="~/Desktop/PlistBuddy/Root.plist" set cnt=`/usr/libexec/PlistBuddy -c "Print PreferenceSpecifiers:" ${theFile} | grep "Dict"|wc -l` # echo "the count is: $cnt." set cnt=`expr "$cnt" '-' '1'` foreach idx (`seq 0 $cnt`) # echo "the index is: $idx." set val=`/usr/libexec/PlistBuddy -c "Print PreferenceSpecifiers:${idx}:Title" ${theFile}` # echo "the value of PreferenceSpecifiers:${idx}:Title: is ${val}." if ( "$val" == "Version" ) then echo "the index of the entry whose 'Title' is 'Version' is $idx." # now set it /usr/libexec/PlistBuddy -c "Set PreferenceSpecifiers:${idx}:DefaultValue $productVersion" ${theFile} # just to be sure that it worked set ver=`/usr/libexec/PlistBuddy -c "Print PreferenceSpecifiers:${idx}:DefaultValue" ${theFile}` echo 'PreferenceSpecifiers:$idx:DefaultValue set to: ' $ver endif end