IBM DevOps Code ClearCase vs. Yarn

IBM Rational ClearCase might be better suited for a smaller / simpler code base. Larger code bases really slow it down... but then again there are better alternatives out there for source control

Incentivized

There is really no real reason why not to use Yarn today. It's much faster than npm, and you will need a dependency management system anyway. The only thing that might be missing is the fact that it doesn't come natively with NodeJS, and you have to install it yourself. I'd like to see the NodeJS ecosystem include Yarn by default.

Incentivized

• Rational ClearCase is excellent for handling versioning and branching. No other tool I've used has the depth that ClearCase has when it comes to handling complex branching scenarios and identifying where certain versions of particular files are within a particular configuration.
• Rational ClearCase handles parallel development of many dependent applications really well.
• The use of ClearCase Views to switch between projects and configurations is extremely convenient as opposed to the local workstation model of the competitors.

Incentivized

• Package management
• Speed of download compared to npm
• Moduel version control

Incentivized

• Extremely buggy.
• Sometimes the repository gets locked for no reason.
• Slow.

Incentivized

• Rarely, some server connection error appear, while npm works alright.
• Sometimes, deleting the whole vendor directory is the best solution to solve weird issues.
• You still might need npm to install Yarn.

Incentivized

If development is centrallized to one location and your company releases hundreds of customized versions of your software per year, then ClearCase is the best tool for managing the complexity of multiple versions of customized software. If your company has globally distributed development, then I'd recommend Team Foundation Server over ClearCase. If your organization uses Agile Methodologies, then I'd recommend TFS with GIT.

Incentivized

Compared to npm, Yarn is a clear winner here. npm does not look to be getting any improvements recently. And it's much much slower to run when installing project dependencies. This has a clear impact on the developer productivity but also makes deployments slower. So Yarn is still a much superior choice.

Incentivized

• Managed code versioning for many years.
• Only one person can edit code at a time - slows processing down.
• IBM is an expensive product to support.

Incentivized

• Deployments happen much faster.
• Building and testing our apps is much more streamlined and efficient.
• Makes it easier to write reusable code.

Incentivized