The great importance of Continuous integration
Let’s first consider what happens if we don’t do continuous integration. Think about a group of developers working jointly. A developer acquires a replica of the existing code base and alters it. With other developers submitting altered code to a source code repository, this replica gradually ceases to replicate the repository code. The result is not limited to a change in the present code base. There is also the possibility of Pristine code being put in along with pristine libraries, and further resources that generate dependencies, and prospective conflicts.
What would it be without continuous integration?
The effect of a constant change of the code can be intermittent commits and delayed testing. The lengthier the time that a branch of code stays checked out increases the risk of several integration conflicts and a rise of bugs as the developer branch get reintegrated into the key branch.
In due course, there is a possibility that the repository will become so unlike the local branches of the developers that you go in “merge hell.” This is a state where it becomes more time-consuming for you to incorporate the pristine changes into the key repository compared to the time taken for making their original changes.
Continuous integration – It’s based on a number of key rules and practices
• Maintenance of a lone source repository
• Automation of the build
• The making of your build self-testing
• The building on of every commit on an integration machine
• Maintenance of a fast build
• Testing should be done in a carbon copy of the production setting (staging)
• Facilitating anyone for getting the most recent executable version
• What’s happening should be visible to everyone
• Automation of deployment
The following of the above practices limits the likelihood for disastrous merge problem and any work lost as a result of a broken codebase.
The way it functions
Having checked out code into their personal workspaces, developers place the alterations to the repository. Continuous integration servers supervise the repository and mechanically assemble, build, and test all new versions of code placed and guarantees that the whole team is informed whenever the key code repository has a broken code.
