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Ant advanced -path and fileset

2022-07-27 10:12:00 【51CTO】

One <path/> and <classpath/>

You can use it. ":" and ";" As a separator , Specify something similar to PATH and CLASSPATH References to .Ant The separator will be converted into the separator used by the current system .

When you need to specify a value similar to the path , You can use nested elements . The general form is

       
       <
       
       classpath
       
       > 
       
       <
       
       pathelement 
       
       path=
       
       "{classpath}"
       
       /> 
       
       <
       
       pathelement 
       
       location=
       
       "lib/helper.jar"
       
       /> 
       
       </
       
       classpath
       
       >
      
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location Property specifies relative to project A file and directory of the base directory , and path Property accepts a comma or semicolon separated list of locations .path Properties are generally used as predefined paths , In other cases , There should be more than one location attribute .

For brevity ,classpath Tags support their own path and location attribute . therefore ：

       
       <
       
       classpath
       
       > 
       
       <
       
       pathelement 
       
       path=
       
       "{classpath}"
       
       /> 
       
       </
       
       classpath
       
       >
      
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Can be written by Jane ：

       
       <
       
       classpath 
       
       path=
       
       "{classpath}"
       
       /> 
       
 Can also pass 
       
       <
       
       fileset
       
       > Element specifies the path . Constitute a fileset Add multiple files of path-like structure The order of is undetermined . 
       
       <
       
       classpath
       
       > 
       
       <
       
       pathelement 
       
       path=
       
       "{classpath}"
       
       /> 
       
       <
       
       fileset 
       
       dir=
       
       "lib"
       
       > 
       
       <
       
       include 
       
       name=
       
       "**/*.jar"
       
       /> 
       
       </
       
       fileset
       
       > 
       
       <
       
       pathelement 
       
       location=
       
       "classes"
       
       /> 
       
       </
       
       classpath
       
       >
      
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The above example constructs a path value including ：{classpath} The path of , follow lib All under directory jar file , Next is classes Catalog .

If you want to be in more than one task Use the same path-like structure, You can use it. <path> Elements define them （ And target At the same level ）, And then through id Property reference .

path-like structure It may include the other path-like structurede References to （ By nesting <path> Elements ）：

       
       <
       
       path 
       
       id=
       
       "base.path"
       
       > 
       
       <
       
       pathelement 
       
       path=
       
       "{classpath}"
       
       /> 
       
       <
       
       fileset 
       
       dir=
       
       "lib"
       
       > 
       
       <
       
       include 
       
       name=
       
       "**/*.jar"
       
       /> 
       
       </
       
       fileset
       
       > 
       
       <
       
       pathelement 
       
       location=
       
       "classes"
       
       /> 
       
       </
       
       path
       
       > 
       
       <
       
       path 
       
       id=
       
       "tests.path"
       
       > 
       
       <
       
       path 
       
       refid=
       
       "base.path"
       
       /> 
       
       <
       
       pathelement 
       
       location=
       
       "testclasses"
       
       /> 
       
       </
       
       path
       
       >
      
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What I mentioned earlier is about <classpath> For <path> It also works , Such as ：

       
       <
       
       path 
       
       id=
       
       "tests.path"
       
       > 
       
       <
       
       path 
       
       refid=
       
       "base.path"
       
       /> 
       
       <
       
       pathelement 
       
       location=
       
       "testclasses"
       
       /> 
       
       </
       
       path
       
       >
      
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Can be written as ：

Two fileset

1）FileSet It's a set of files , These files can be found under the base directory tree and are related to the specified PatternSets and Selectors matching .FileSet The structure of is similar to the following ：

       
       <
       
       fileset 
       
       dir=
       
       "${server.src}"
       
       >
       
       <
       
       patternset
       
       />
       
       <
       
       Selector
       
       />
       
       </
       
       fileset
       
       >
      
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2）patternset Generally used as FileSet Child elements , Used to help filter files . It can contain the following sub elements ：include,exclude,includes,excludes,includesfile,excludesfile.

FileSet It implicitly contains a patternset Elements , So it can be FileSet It directly contains patterset The elements in , for example <include>, <includesfile>, <exclude> and <excludesfile> .

As follows patternset contain std Under subdirectories java file , If professional The definition also includes prof Under the java file , But the name does not contain Test The file of .

       
       <
       
       patternset 
       
       id=
       
       "sources"
       
       >
       
       <
       
       include 
       
       name=
       
       "std/**/*.java"
       
       />
       
       <
       
       include 
       
       name=
       
       "prof/**/*.java" 
       
       if=
       
       "professional"
       
       />
       
       <
       
       exclude 
       
       name=
       
       "**/*Test*"
       
       />
       
       </
       
       patternset
       
       >
      
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3）Selector Generally used as FileSet Child elements , Used to help filter files .

Common core selector Yes ：

       
       <
       
       contains
       
       > -  Used to select the file containing the specified string 
       
       <
       
       date
       
       > -  Used to select the file to be modified before or after a specific time 
       
       <
       
       depend
       
       > - Select files that have been modified more recently than equivalent files elsewhere
       
       <
       
       depth
       
       > -  Used to select files with specified directory depth 
       
       <
       
       different
       
       > - Select files that are different from those elsewhere
       
       <
       
       filename
       
       > -  Used to select files whose file names match a specific pattern . Equivalent to include and exclude Of patternset.
       
       <
       
       present
       
       > -  Used to select files that exist or do not exist in a certain location 
       
       <
       
       containsregexp
       
       > -  Used to select the file that matches the specified regular expression 
       
       <
       
       size
       
       > -  Used to select the ratio specified size Large or small files 
       
       <
       
       type
       
       > - Select files that are either regular files or directories.
       
       <
       
       modified
       
       > - Select files if the return value of the configured algorithm is different from that stored in a cache.
       
       <
       
       signedselector
       
       > - Select files if they are signed, and optionally if they have a signature of a certain name.
       
       <
       
       scriptselector
       
       > - Use a BSF or JSR 223 scripting language to create your own selector
       
       <
       
       readable
       
       > -  Choose to have readable Properties file 
       
       <
       
       writable
       
       > -  Choose to have writable Properties of the file, for example, choose to include script All of html file 
       
       <
       
       fileset 
       
       dir=
       
       "${doc.path}" 
       
       includes=
       
       "**/*.html"
       
       >
       
       <
       
       contains 
       
       text=
       
       "script" 
       
       casesensitive=
       
       "no"
       
       />
       
       </
       
       fileset
       
       > For example, select all in January1,2001 Previously modified JAR file 
       
       <
       
       fileset 
       
       dir=
       
       "${jar.path}" 
       
       includes=
       
       "**/*.jar"
       
       >
       
       <
       
       date 
       
       datetime=
       
       "01/01/2001 12:00 AM" 
       
       when=
       
       "before"
       
       />
       
       </
       
       fileset
       
       > For example, select all that satisfy the regular expression txt file 
       
       <
       
       fileset 
       
       dir=
       
       "${doc.path}" 
       
       includes=
       
       "*.txt"
       
       >
       
       <
       
       containsregexp 
       
       expression=
       
       "[4-6]\.[0-9]"
       
       />
       
       </
       
       fileset
       
       > As follows selector And patternset Equivalent ：
       
       <
       
       fileset 
       
       dir=
       
       "${server.src}" 
       
       casesensitive=
       
       "yes"
       
       >
       
       <
       
       filename 
       
       name=
       
       "**/*.java"
       
       />
       
       <
       
       not
       
       >
       
       <
       
       filename 
       
       name=
       
       "**/*Test*"
       
       />
       
       </
       
       not
       
       >
       
       </
       
       fileset
       
       >
       
 Equivalent to 
       
       <
       
       fileset 
       
       dir=
       
       "${server.src}" 
       
       casesensitive=
       
       "yes"
       
       >
       
       <
       
       filename 
       
       name=
       
       "**/*.java"
       
       />
       
       <
       
       filename 
       
       name=
       
       "**/*Test*" 
       
       negate=
       
       "true"
       
       />
       
       </
       
       fileset
       
       >
       
 Equivalent to 
       
       <
       
       fileset 
       
       dir=
       
       "${server.src}" 
       
       casesensitive=
       
       "yes"
       
       >
       
       <
       
       include 
       
       name=
       
       "**/*.java"
       
       />
       
       <
       
       exclude 
       
       name=
       
       "**/*Test*"
       
       />
       
       </
       
       fileset
       
       >selector Containers can contain other selector, frequently-used selector The container has ：
       
       <
       
       and
       
       >
       
       <
       
       contains
       
       >
       
       <
       
       custom
       
       >
       
       <
       
       date
       
       >
       
       <
       
       depend
       
       >
       
       <
       
       depth
       
       >
       
       <
       
       filename
       
       >
       
       <
       
       majority
       
       >
       
       <
       
       none
       
       >
       
       <
       
       not
       
       >
       
       <
       
       or
       
       >
       
       <
       
       present
       
       >
       
       <
       
       selector
       
       >
       
       <
       
       size
       
       > For example, choose ratio 4096bytes Big and from the last millenium No updates JAR file 
       
       <
       
       fileset 
       
       dir=
       
       "${dist}" 
       
       includes=
       
       "**/*.jar"
       
       >
       
       <
       
       and
       
       >
       
       <
       
       size 
       
       value=
       
       "4" 
       
       units=
       
       "Ki" 
       
       when=
       
       "more"
       
       />
       
       <
       
       date 
       
       datetime=
       
       "01/01/2001 12:00 AM" 
       
       when=
       
       "before"
       
       />
       
       </
       
       and
       
       >
       
       </
       
       fileset
       
       >
      
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