Add pre-commit hook pipeline parameter to install-hooks

README.md

@@ -18,13 +18,6 @@ Add this to your maven project **root** pom.xml :
  <artifactId>maven-git-code-format</artifactId>
  <version>${maven-git-code-format.version}</version>
  <executions>
- <!-- On commit, format the modified java files -->
- <execution>
- <id>install-formatter-hook</id>
- <goals>
- <goal>install-hooks</goal>
- </goals>
- </execution>
  <!-- On Maven verify phase, fail if any file 
  (including unmodified) is badly formatted -->
  <execution>
@@ -37,6 +30,34 @@ Add this to your maven project **root** pom.xml :
  </plugin>
  </plugins>
 </build>
+
+<profiles>
+ <profile>
+ <!-- Install pre-commit hook if missing-->
+ <id>install-pre-commit-hook</id>
+ <activation>
+ <file>
+ <missing>.git/hooks/pre-commit</missing>
+ </file>
+ </activation>
+ <build>
+ <plugins>
+ <plugin>
+ <groupId>com.cosium.code</groupId>
+ <artifactId>maven-git-code-format</artifactId>
+ <executions>
+ <execution>
+ <id>install-hook</id>
+ <goals>
+ <goal>install-hooks</goal>
+ </goals>
+ </execution>
+ </executions>
+ </plugin>
+ </plugins>
+ </build>
+ </profile>
+</profiles>
 ```
 
 ### Manual code formatting
@@ -108,7 +129,13 @@ You can also manually [format](#manual-code-formatting) or [validate](#manual-co
 On the `initialize` maven phase, `git-code-format:install-hooks` installs a git `pre-commit` hook that looks like this :
 ```bash
 #!/bin/bash
-/usr/share/apache-maven-3.5.0/bin/mvn git-code-format:on-pre-commit
+"./.git/hooks/${project.artifactId}.maven-git-code-format.pre-commit.sh"
+```
+and `.git/hooks/${project.artifactId}.maven-git-code-format.pre-commit.sh` has the following content:
+```bash
+#!/bin/bash
+set -e
+"${env.M2_HOME} /bin/mvn" -f "${project.basedir}/pom.xml" git-code-format:on-pre-commit
 ```
 
 On `pre-commit` git phase, the hook triggers the `git-code-format:on-pre-commit` which formats the code of the modified java files using `google-java-format`. 

src/main/java/com/cosium/code/format/InstallHooksMojo.java

@@ -1,22 +1,21 @@
 package com.cosium.code.format;
 
+import static java.util.Optional.ofNullable;
+
 import com.cosium.code.format.executable.Executable;
 import com.cosium.code.format.executable.ExecutableManager;
 import com.cosium.code.format.maven.MavenEnvironment;
-import org.apache.maven.plugin.MojoExecutionException;
-import org.apache.maven.plugins.annotations.LifecyclePhase;
-import org.apache.maven.plugins.annotations.Mojo;
-import org.apache.maven.plugins.annotations.Parameter;
-
 import java.io.IOException;
 import java.nio.charset.StandardCharsets;
 import java.nio.file.Path;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
-
-import static java.util.Optional.ofNullable;
+import org.apache.maven.plugin.MojoExecutionException;
+import org.apache.maven.plugins.annotations.LifecyclePhase;
+import org.apache.maven.plugins.annotations.Mojo;
+import org.apache.maven.plugins.annotations.Parameter;
 
 /**
  * Installs git hooks on each initialization. Hooks are always overriden in case changes in:
@@ -53,6 +52,10 @@ public class InstallHooksMojo extends AbstractMavenGitCodeFormatMojo {
  @Parameter(property = "debug", defaultValue = "false")
  private boolean debug;
 
+ /** Make the pre-commit hook quiet */
+ @Parameter(property = "quiet", defaultValue = "false")
+ private boolean quiet;
+
  public void execute() throws MojoExecutionException {
  if (!isExecutionRoot()) {
  getLog().debug("Not in execution root. Do not execute.");
@@ -107,8 +110,11 @@ private String mavenCliArguments() {
  .filter(prop -> System.getProperty(prop) != null)
  .map(prop -> "-D" + prop + "=" + System.getProperty(prop));
 
- return Stream.concat(propagatedProperties, Stream.of(propertiesToAdd))
- .collect(Collectors.joining(" "));
+ Stream<String> properties = Stream.concat(propagatedProperties, Stream.of(propertiesToAdd));
+ if (quiet) {
+ properties = Stream.concat(properties, Stream.of(">/dev/null"));
+ }
+ return properties.collect(Collectors.joining(" "));
  }
 
  private Path prepareHooksDirectory() {

src/main/resources/com/cosium/code/format/maven-git-code-format.pre-commit.sh

@@ -1,3 +1,3 @@
 #!/bin/bash
 set -e
-%s -f %s git-code-format:on-pre-commit %s
+%s -f %s com.cosium.code:maven-git-code-format:on-pre-commit %s