[英]How does Maven know where input files come from and where output files go during the generate-sources phase?
I am new to Maven.我是 Maven 的新手。 I have a project which includes a grammar definition file that is read by SableCC, which is a parser generator.
我有一个项目,其中包含一个由 SableCC 读取的语法定义文件,它是一个解析器生成器。 SableCC reads a grammar file and generates Java source code that, once compiled, creates a parser.
SableCC 读取一个语法文件并生成 Java 源代码,一旦编译,就会创建一个解析器。 The parser is used by the rest of my project.
该解析器由我项目的 rest 使用。
I don't think my question is a SableCC question, as I've seen similar POM.XML files that use Antlr (another parser generator that is comparable to SableCC) and the <plugin>
section of that POM.XML looks nearly the same as my <plugin>
section in my POM.XML file.我不认为我的问题是 SableCC 问题,因为我看到类似的 POM.XML 文件使用 Antlr(另一个与 SableCC 相当的解析器生成器),并且该 POM.XML 的
<plugin>
部分看起来几乎相同作为我的 POM.XML 文件中的<plugin>
部分。
Here is my project's file structure, identifying those parts that are used by SableCC:这是我项目的文件结构,标识了 SableCC 使用的那些部分:
Here is my complete POM.XML file, which I've cobbled together based on the plugin examples I've seen so far (and in particular, the one for SableCC):这是我完整的 POM.XML 文件,我根据迄今为止看到的插件示例(特别是 SableCC 的示例)拼凑而成:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.mbm</groupId>
<artifactId>properties</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>Properties</name>
<description>Define and process program arguments</description>
<dependencies>
</dependencies>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>sablecc-maven-plugin</artifactId>
<version>2.2</version>
<executions>
<execution>
<goals>
<goal>generate</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>
My question is how does the SableCC plugin know where the input file is and where the 4 categories of generated output Java source files (analysis, lexer, node and parser) should go?我的问题是 SableCC 插件如何知道输入文件在哪里以及生成的 4 类 output Java 源文件(分析、词法分析器、节点和解析器)应该在哪里 Z34D1F91FB2E514B8576ZFAB1 I suspect I need to add more Maven "stuff" to my POM file, but I don't know what.
我怀疑我需要在我的 POM 文件中添加更多 Maven “东西”,但我不知道是什么。
You can see the plugin configurations here: https://github.com/tychobrailleur/sablecc-maven-plugin您可以在此处查看插件配置: https://github.com/tychobrailleur/sablecc-maven-plugin
More specifically:进一步来说:
sourceDirectory: Directory containing grammar files. sourceDirectory:包含语法文件的目录。 By default, ${basedir}/src/main/sablecc
默认情况下,${basedir}/src/main/sablecc
outputDirectory: Directory containing the generated sources. outputDirectory:包含生成源的目录。 By default, ${project.build.directory}/generated-sources/sablecc
默认情况下,${project.build.directory}/generated-sources/sablecc
You can also extract the JAR and see these configurations in the plugin.xml file:您还可以提取 JAR 并在 plugin.xml 文件中查看这些配置:
<configuration>
<outputDirectory implementation="java.lang.String">${project.build.directory}/generated-sources/sablecc</outputDirectory>
<timestampDirectory implementation="java.lang.String">${basedir}/target</timestampDirectory>
<sourceDirectory implementation="java.lang.String">${basedir}/src/main/sablecc</sourceDirectory>
<project implementation="org.apache.maven.project.MavenProject">${project}</project>
<staleMillis implementation="int" default-value="0">${lastModGranularityMs}</staleMillis>
</configuration>
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