Gradle 操纵文件

女爷i 2022-08-07 08:46 201阅读 0赞

# CopyTask #

# 将文件从一个目录拷贝到另一个目录，也可以拷贝副本。 #

全部拷贝到另外一个目录
    Example 1-1. A trivial copy task configuration
    task copyPoems(type: Copy) {
     from 'text-files'
     into 'build/poems'
    }
    除了指定名称的文件，其他都拷贝到另外一个目录
    Example 1-2. A copy task that copies all the poems except the one by Henley
    task copyPoems(type: Copy) {
    from 'text-files'
    into 'build/poems'
    exclude '**/*henley*'
    }
    只拷贝指定名称的文件
    Example 1-3. A copy task that only copies Shakespeare and Shelley
    task copyPoems(type: Copy) {
    from 'text-files'
    into 'build/poems'
    include '**/sh*.txt'
    }
    将多个目录的文件拷贝到一个目录
    Example 1-4. A copy task taking files from more than one source directory
    task complexCopy(type: Copy) {
     from('src/main/templates' ) {
     include '**/*.gtpl'
     }
     from('i18n' )
    from('config' ) {
     exclude 'Development*.groovy'
     }
     into 'build/resources'
    }
    拷贝文件的时候保留目录结构
    Example 1-5. A copy task mapping source directory structure onto a new destination structure
    task complexCopy(type: Copy) {
     from('src/main/templates' ) {
     include '**/*.gtpl'
     into 'templates'
     }
     from('i18n' )
     from('config' ) {
     exclude 'Development*.groovy'
     into 'config'
     }
     into 'build/resources'
    }

拷贝的时候使用正则表达式重命名文件  
*Example 1-6. Renaming files using regular expressions*  
taskrename(type:Copy) \{  
from  'source'  
into  'dest'  
rename(/file-template-(\\d+)/,'production-file-$1.txt' )  
\}  
Groovy编程方式重命名文件  
 *Example 1-7. Renaming files programmatically*  
taskrename(type:Copy) \{  
from  'source'  
into  'dest'  
rename  \{ fileName  \->  
"production-file$\{(fileName - 'file-template')\}"  
\}  
\}  
  
 *Example 1-8. Copying a file with keyword expansion*  
versionId= '1.6'  
task  copyProductionConfig(type:Copy) \{  
from  'source'  
include  'config.properties'  
into  'build/war/WEB-INF/config'  
expand(\[  
databaseHostname:  'db.company.com' ,  
version:  versionId,  
buildNumber:  (**int**)(Math.random() \*1000),  
date: **new** Date()  
\])  
\}  
*Example 1-9. Use filter() with a closure to transform a text file as it is copied*  
**import****com.petebevin.markdown.MarkdownProcessor**  
buildscript\{  
repositories  \{  
mavenRepo  url: 'http://scala-tools.org/repo-releases'  
\}  
dependencies\{  
classpath  'org.markdownj:markdownj:0.3.0-1.0.2b4'  
\}  
\}  
task  markdown(type:Copy) \{  
**def**markdownProcessor= **new** MarkdownProcessor()  
into  'build/poems'  
from  'source'  
include  'todo.md'  
rename  \{ it  \- '.md'  \+ '.html'  \}  
filter  \{ line  \->  
markdownProcessor.markdown(line)  
\}  
\}  
  
*Example 1-10. Use filter() with a custom Ant Filter class to transform a text file as it is*  
*copied*  
**import****org.apache.tools.ant.filters.\***  
**import** **com.petebevin.markdown.MarkdownProcessor**  
buildscript\{  
repositories  \{  
mavenRepo  url: 'http://scala-tools.org/repo-releases'  
\}  
dependencies  \{  
classpath  'org.markdownj:markdownj:0.3.0-1.0.2b4'  
\}  
\}  
**class****MarkdownFilter****extends** FilterReader\{  
MarkdownFilter(Reader input) \{  
**super**(**new**StringReader(**new**MarkdownProcessor().markdown(input.text)))  
\}  
\}  
task  copyPoem(type:Copy) \{  
into  'build/poems'  
from  'source'  
include  'todo.md'  
rename  \{ it  \- ~/\\.md$/  \+ '.html'  \}  
filter MarkdownFilter  
\}  
  
*Example 1-11. Use eachFile() to accumulate a hash of several files*  
**import****java.security.MessageDigest**;  
task  copyAndHash(type:Copy) \{  
MessageDigest sha1  = MessageDigest.getInstance("SHA-1");  
into  'build/deploy'  
from  'source'  
eachFile  \{ fileCopyDetails  \->  
sha1.digest(fileCopyDetails.file.bytes)  
\}  
doLast  \{  
Formatter hexHash  = **new** Formatter()  
sha1.digest().each \{  b \->  hexHash.format('%02x', b) \}  
println hexHash  
\}  
\}  
  
*Example 1-12. Trying to set the destinationDir property of a Jar task with a string*  
jar\{  
destinationDir  = 'build/jar'  
\}  
  
*Example 1-13. Trying to set the destinationDir property of a Jar task with a string*  
jar\{  
destinationDir  = **new** File('build/jar')  
\}  
  
*Example 1-14. Setting the destinationDir property of a Jar task using the file() method*  
jar\{  
destinationDir  = file('build/jar')  
\}  
  
![Image 1][]

*Example 1-15. Using fileTree() with includes and excludes*  
**def**noBackups= fileTree('src/main/java') \{  
exclude  '\*\*/\*~'  
\}  
**def**xmlFilesOnly= fileTree('src/main/java') \{  
include  '\*\*/\*.xml'  
\}  
  
 *Example 1-16. Using fileTree() with includes and excludes given in a map literal*  
**def**noBackups= fileTree(dir:'src/main/java' ,  excludes: \['\*\*/\*~' \])  
**def**xmlFilesOnly= fileTree(dir:'src/main/java' ,  includes: \['\*\*/\*.xml' \])  
  
  
*Example 1-17. The default toString() implementation of a FileCollection*  
taskcopyPoems(type:Copy) \{  
from  'text-files'  
into  'build/poems'  
\}  
println  "NOT HELPFUL:"  
println  files(copyPoems)  
  
 *Example 1-18. A more useful way to look at a FileCollection*  
taskcopyPoems(type:Copy) \{  
from  'text-files'  
into  'build/poems'  
\}  
println  "HELPFUL:"  
println  files(copyPoems).files  
  
 *Example 1-19. The base build from which we will derive FileCollection examples*  
applyplugin: 'java'  
repositories  \{  
mavenCentral()  
\}  
dependencies  \{  
compile  'org.springframework:spring-context:3.1.1.RELEASE'  
\}  
  
 *Example 1-20. A naive way to list source files*  
task naiveFileLister\{  
doLast  \{  
println  fileTree('src/main/java'). files  
\}  
\}  
  
 *Example 1-21. Printing out all of the compile-time dependencies of the build as a pathlike string*  
println configurations.compile.asPath  
  
 *Example 1-22. Using module dependencies as a FileCollection to capture JAR files.*  
taskcopyDependencies(type:Copy) \{  
from configurations.compile  
into  'lib'  
\}  
  
 *Example 1-23. Using FileCollection addition to create a runtime classpath*  
taskrun(type:JavaExec) \{  
main  = 'org.gradle.example.PoetryEmitter'  
classpath  = configurations.compile \+  sourceSets.main.output  
\}  
  
 *Example 1-24. Creating an intersection of two FileCollections*  
**def**poems= fileTree(dir:'src/main/resources' ,  include: '\*.txt'  )  
**def**romantics= fileTree(dir:'src/main/resources' ,  include: 'shelley\*'  )  
**def**goodPoems= poems  \- romantics  
  
 *Example 1-25. Printing out the collection of source files in the main Java SourceSet*  
println sourceSets.main.allSource.files  
  
 *Example 1-26. Printing out the output directories the Java compiler will use for the*  
*main source set.*  
println sourceSets.main.output.files

来自《Gradle\_Beyond\_the\_Basics.pdf》：http://pan.baidu.com/s/1jPeNG

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