[BUG] [MVN Plugin] - <templateDirectory> is ignored

I’m running mvn install with the following configuration - but the looks like the <templateDirectory> is ignored and Template directory always defaults to embedded dir.

Here is the maven plugin section in which the templateDirectory is ignored:

  <build>
        <plugins>
            <plugin>
                <groupId>org.openapitools</groupId>
                <artifactId>openapi-generator-maven-plugin</artifactId>
                <version>4.1.3</version>
                <executions>
                    <execution>
                        <id>swagger-generate-server-code</id>
                        <goals>
                            <goal>generate</goal>
                        </goals>
                        <configuration>
                            <inputSpec>${project.parent.parent.basedir}/src/main/resources/swagger-spec-pet-store.json</inputSpec>
                            <templateDirectory>${project.basedir}/src/main/resources</templateDirectory>
                            <modelPackage>com.computrade.restful.services.model</modelPackage>
                            <apiPackage>com.computrade.restful.services.server.api</apiPackage>
                            <invokerPackage>com.computrade.restful.services.server.invoker</invokerPackage>
                            <configOptions>
                                <interfaceOnly>true</interfaceOnly>
                                <java8>true</java8>
                                <dateLibrary>java8</dateLibrary>
                                <skipDefaultInterface>true</skipDefaultInterface>
                            </configOptions>
                            <configHelp>false</configHelp>
                            <generatorName>spring</generatorName>
                            <library>spring-boot</library>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

openapi-generator version

            <groupId>org.openapitools</groupId>
            <artifactId>openapi-generator-maven-plugin</artifactId>
            <version>4.1.3</version>

I tried also earlier from 4.0.0 and above - but still the same.

Related issues/PRs

https://github.com/OpenAPITools/openapi-generator/issues/3364 I see this issue was closed. ( but it wasn’t open on the Maven plugin from the beginning )

Thanks, Yuval Ishay

[andrzejwp]

+1 looks like it’s still present in 4.2.2 as well

[jimschubert]

@DenisKnoepfle thanks for bumping this. I never got your comment last month from the linked issue for some reason.

I was having trouble reproducing the issue you’d described. I’d found it was because I was testing using git bash in Windows so I guess it uses linux file separators and was never hitting the file separator issue you’d described. When I had tested the maven plugin, I was testing templateDirectory rather than templateResourcePath as is discussed in this issue.

I should have a fix shortly. I just need to get my Windows 10 VM to update successfully so I can test this in Windows Terminal, since I assume that’s what most Windows developers would be using. I also want to be sure to test both templateDirectory and templateResourcePath options a few times in private CI and local builds to be sure the issue is resolved.

A workaround for anyone affected may be to switch to templateDirectory like:

<templateDirectory>${project.basedir}/templates</templateDirectory>

However, since this bug was reported 7 months before my refactor, I can’t say for sure why the original implementation was failing.