I am using Maven 2.0
As you can see from the below line , i am hardcoding the version as 1.0
Is it possible that for every build the version automatically increments .
<copy file="D:/MyWeb/service/target/MyWeb-ws-1.0.war" tofile="C:/Softwares/apache-tomcat-6.0.33/webapps/MyWeb-ws-1.0.war" />
Please suggest , thank you very much .
You can look at using the Build Number Maven Plugin for this.
As documented in their web page,
This plugin works in one of 3 ways: with an SCM, with a sequential
build number, or with a timestamp.
You can choose the one which is convenient to you.
Related
How to convert a Ant project to Maven project? A sample project that would link (a Wicket project)
Thanks
The nice part of using maven is that most standard stuff works automatically once you do things the maven way. For a simple webapp:
Create a pom with groupId, artifactId and version (packaging: war)
Add the required dependencies to the pom
move the
java sources to src/main/java,
resources to src/main/resources,
webapp content to src/main/webapp,
test content to src/test/java and src/test/resources
set the compiler compliance version using the maven compiler plugin
That should get you up 'n' running.
http://www.sonatype.com/people/2009/04/how-to-convert-from-ant-to-maven-in-5-minutes/
I don't know what your ant script looks like, but assuming its a basic script for building, you will need to create a pom.xml file for your project, add your dependencies, and then build it via maven.
For anyone who lands here in future, there is an easier way to find dependencies for maven using the file hashes. So, you won't have to guess artifact versions.
As per the below article, the idea is to generate a SHA1 checksum of the dependency that you want to find the information, then do a reverse search in Nexus repository manager using that hash. For the checksum generation, you can use Microsoft's FCIV (free) utility.
https://devreads.xyz/ant-to-maven-conversion-the-painless-method/
In general, what is the best strategy for finding the groupId and artifactId for a well-known dependency for use in a Maven POM? For example, how would I find the correct entry for the MySQL JDBC driver? It's not mentioned on the mysql.com site, so I would usually spend time looking for another POM that already uses the Maven repository version of the jar. This can't be the best way.
I would suggest to use http://search.maven.org
M2Eclipse, the maven integration of eclipse, supports local searchable indexes of maven repositories. So you can right-click a project or a pom.xml and do
Maven -> Add Dependency
A dialog appears where you can search for artifacts from your local indexes. Wouldn't want to miss it.
If that's not an option, use mvnrepository.com
Most of the time my IDE does this for me. But when I'm not sure I search manually; Google really helps.
You can also search on maven search engines like this mvnrepository.com.
I use http://repository.sonatype.org.
Maven site suggests to browse biblio to get maven co-ordinates; http://www.ibiblio.org/ .
Say for log4j
First, we need to know what the groupId, artifactId, and version are for log4j. We can browse ibiblio and look for it, or use Google to help by searching for "site:www.ibiblio.org maven2 log4j".
Maven metadata for log4j: http://mirrors.ibiblio.org/maven2/log4j/log4j/maven-metadata.xml
In my experience the best option is mvnrepository.com. for example in your case, just type mysql in the search text field. you will find all available artifacts that contain mysql string. in your case the one fit your needs is: mysql-connector-java
for each artifact you have a general description that helps you decide what is best for you.
once you click it you get all the available versions and once you click on a version you have all sort of information about it like the code you need to add to your pom.xml, the artifact dependencies and so on...
1. Go to http://search.maven.org
2. Search in the required jar with groupId/artifactId or Just with basic text.
Like for your case
Is there a way to specify the artifact version outside of the POM file?
I have 2 CI projects that build an artifact. One builds a "stable" development version from a 'develop' branch and the other builds an unstable version which is the result of merging all active feature branches into the develop branch. I want the stable version to build as xyz-1.0.jar and the integration build to go in as xyz-1.0-SNAPSHOT.jar. Is there a way for the CI job to run a maven task or specify via the command line if a release or snapshot jar should be built without manually modifying the POM? Currently I have the version specified as 1.0 in the pom. I considered using the release plugin but I don't want the automatic version number increase and tagging that it does.
Short answer: no. And here are some additional remarks:
It doesn't make much sense to use a "released" version (i.e. non SNAPSHOT) for a branch under CI since released versions are not downloaded again even if a newer version is available.
Released versions should be tagged (e.g. 1.0), maintenance is done is in a branch derived from the tag (e.g. 1.0.1-SNAPSHOT).
If you want to distinguish versions built from different branches, use different versions in the POMs.
I was able to accomplish this by using a property in my POM and then overriding it via the command line.
pom.xml:
...
<version>${artifactVersion}</version>
<properties>
<artifactVersion>1.0</artifactVersion> <!-- default version -->
</properties>
...
Then overriding with mvn -DartifactVersion=1.0-SNAPSHOT package
But Pascal's answer above is more in line with what I was really asking. My solution is more of a workaround I feel.
You should be able to achieve this using maven profiles
I'm building Maven projects via TeamCity/Git and trying to insert the TeamCity build numbers in the pom.xml that gets published to my repository upon a successful build. Unfortunately I can't determine how to publish a pom.xml with the substitutions inserted.
My pom.xml contains info like:
<version>${build.number}</version>
where build.number is provided by TeamCity. That all builds ok, and if (say) build.number = 0.1, then the deployment is a pom.xml to a directory with 0.1. All well and good.
However, the pom.xml that is deployed is the pom.xml without the substitutions made. i.e. Maven is running with a pom.xml with appropriate substitutions, but deploys the initial version and so I get
<version>${build.number}</version>
in the final pom.xml. How can I get the build version number in the pom.xml ?
I wouldn't use this approach because it makes building a project checked out from the SCM not possible without providing the build.number property. I don't think that this is a good thing. Maybe I'm missing something though.
Actually, I don't get what you are trying to achieve exactly (why don't you write the build number in the manifest for example). But, according to the Maven Features on the Teamcity website:
By default, it also keeps TeamCity build number in sync with the Maven version number (...).
Couldn't that be helpful? There is another thread about this here.
Try to use generateReleasePoms property of maven-realease-plugin, maybe that helps a little.
What are the minimum steps I should follow to replace Ant with Maven?
Set up your project according to the standard directory layout.
Create a minimal pom.xml with groupId, artifactId and version.
Add your dependencies to the pom.xml
Compare the WAR/JAR/EAR to the old version see if there is any change. Take actions to minimize the differences as told here.
You should now be able to build a simple project, run the tests and package it.
Anecdote: Once you are in Maven, the reverse trip (though why would you ever go back!) is so simple:
mvn ant:ant
generates functionally equivalent ant scripts. Now if only an Ant->Maven generator existed.
You can have a look to ant2maven script, that builds pom.xml from Ant scripts. I've never tried it, but it can be used to have a good pom.xml to start with...