Question: Only Merge Commits should be logged

[vhochstein]

Hi,

I m searching for a solution for following requirement.
I would like to log ONLY log Commits starting with Merge Branch between to git references.

I ve tried out your maven plugin and it seems it works in default setting the other way around.
only log Commits NOT starting with Merge Branch..

Do you have a configuration option to change this default behaviour ?

<ignoreCommitsIfMessageMatches>"^(?!Merge).+"</ignoreCommitsIfMessageMatches>

does not work.. :-(

Thanks a lot for your support in advance.

[jconnolly]

I'd like to see this too. I'll investigate and issue a PR if I get it implemented.

[jconnolly]

@vhochstein have you tried

<ignoreCommitsIfMessageMatches>"^\\[maven-release-plugin\\].*|^\\[Gradle Release Plugin\\].*"</ignoreCommitsIfMessageMatches>

That should override the default which omits merge commits.

[tomasbjerre]

If I configure this plugin like:

<?xml version="1.0" encoding="UTF-8"?>
<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 http://maven.apache.org/maven-v4_0_0.xsd">
        <modelVersion>4.0.0</modelVersion>
        <groupId>se.bjurr.gitchangelog</groupId>
        <artifactId>git-changelog-maven-plugin-example</artifactId>
        <name>git-changelog-maven-plugin-example</name>
        <version>1.0-SNAPSHOT</version>
        <properties>
                <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
                <maven.compiler.target>1.6</maven.compiler.target>
                <maven.compiler.source>1.6</maven.compiler.source>
                <changelog.version>1.65-SNAPSHOT</changelog.version>
        </properties>
        <build>
                <plugins>
                        <plugin>
                                <groupId>se.bjurr.gitchangelog</groupId>
                                <artifactId>git-changelog-maven-plugin</artifactId>
                                <version>${changelog.version}</version>
                                <executions>
                                        <execution>
                                                <id>GenerateGitReleasenotes11</id>
                                                <phase>generate-sources</phase>
                                                <goals>
                                                        <goal>git-changelog</goal>
                                                </goals>
                                                <configuration>
                                                        <file>changelog-ignore-merge.md</file>
                                                        <fromRef>git-changelog-maven-plugin-1.61</fromRef>
                                                        <toRef>git-changelog-maven-plugin-1.62</toRef>
                                                        <ignoreCommitsIfMessageMatches>^(?!Merge).*</ignoreCommitsIfMessageMatches>
                                                </configuration>
                                        </execution>
                                </executions>
                        </plugin>
                </plugins>
        </build>
</project>

I get:

# Git Changelog Maven plugin changelog

Changelog of Git Changelog Maven plugin.

## git-changelog-maven-plugin-1.62
### GitHub [#18](https://github.com/tomasbjerre/git-changelog-maven-plugin/pull/18) Add extendedVariables property

**Merge pull request #18 from djn72/master**

 * Add extendedVariables property 

[b5d8cb431274f5f](https://github.com/tomasbjerre/git-changelog-maven-plugin/commit/b5d8cb431274f5f) Tomas Bjerre *2020-08-05 04:42:36*

And the commits between these tags are:

* 6e2f4a4 - (tag: git-changelog-maven-plugin-1.62) [maven-release-plugin] prepare release git-changelog-maven-plugin-1.62 (5 månader sedan) <Tomas Bjerre><Tomas Bjerre>
* e45432e - openjdk8 (5 månader sedan) <Tomas Bjerre><Tomas Bjerre>
*   b5d8cb4 - Merge pull request #18 from djn72/master (5 månader sedan) <Tomas Bjerre><GitHub>
|\  
| * e682c28 - Add extendedVariables property (5 månader sedan) <David Nicklin><David Nicklin>
|/  
* 1e91537 - [maven-release-plugin] prepare for next development iteration (1 år, 1 månad sedan) <Tomas Bjerre><Tomas Bjerre>
* e54b9f3 - (tag: git-changelog-maven-plugin-1.61) [maven-release-plugin] prepare release git-changelog-maven-plugin-1.61 (1 år, 1 månad sedan) <Tomas Bjerre><Tomas Bjerre>

But I think the better solution would be to use the merge boolean that is available in the context of the commit, as documented here: https://github.com/tomasbjerre/git-changelog-lib

[vhochstein]

I solved my issue as follows
<ignoreCommitsIfMessageMatches>^(Release|Merge remote-tracking).+</ignoreCommitsIfMessageMatches>

and in my template:

`{{#commits}}
{{#merge}}

• "{{{messageTitle}}}"
  {{/merge}}
  {{/commits}}`