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The npm Blog — Introducing `npm ci` for faster, more reliable…

  • The command offers massive improvements to both the performance and reliability of builds for continuous integration / continuous deployment processes, providing a consistent and fast experience for developers using CI/CD in their workflow.
  • Previously, developers who wanted to ensure that node_modules/ and package.json stayed in sync would have to archive their node_modules folder.
  • is fast—in some cases, twice as fast as using , representing a significant performance improvement for all developers using continuous integration.
  • Giving developers the ability to “sign off” on a package lock promotes more efficient collaboration across large teams, and the ability to install exactly what is in a lockfile has the potential to save tens if not hundreds of developer hours a month, freeing teams up to spend more time…
  • As an additional installation command, can be used as a fallback installer in case fails, and vice versa.

Introducing `npm ci` for faster, more reliable…

Starting today, all npm users can take advantage of a new install command called . The command offers massive improvements to both the performance and reliability of builds for continuous integration / continuous deployment processes, providing a consistent and fast experience for developers using CI/CD in their workflow.

bypasses a package’s to install modules from a package’s lockfile. This ensures reproducible builds—you are getting exactly what you expect on every install.

Previously, developers who wanted to ensure that node_modules/ and package.json stayed in sync would have to archive their node_modules folder. replaces this process with a single command.

is fast—in some cases, twice as fast as using , representing a significant performance improvement for all developers using continuous integration.

This added speed and reliability reduces wasted time and promotes best practices. If it’s faster and easier to run tests, developers run them more often and catch errors sooner.

promises the most benefit to large teams. Giving developers the ability to “sign off” on a package lock promotes more efficient collaboration across large teams, and the ability to install exactly what is in a lockfile has the potential to save tens if not hundreds of developer hours a month, freeing teams up to spend more time building and shipping amazing things.

also provides additional ways to improve the reliability of your…

The npm Blog — Introducing `npm ci` for faster, more reliable…