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Developer Tools

Squash or merge commit for a dependency fix PR: which is easier to revert?

Squash merge gives a bot's fix PR one commit that reverts with a single command. Merge commits and rebases work too, but need more care. Here is the trade.

Oct 19, 20265 min read
Developer Tools

Why does a squash merge fail when signed commits are required?

GitHub checks every commit a squash merge would introduce, including unsigned ones on the head branch. Why it blocks and three ways to unblock it.

Oct 19, 20263 min read
Developer Tools

Why must CORS be handled before Spring Security?

Preflight requests carry no cookies, so Spring Security would reject them as unauthenticated. How to wire CORS first with a CorsConfigurationSource.

Oct 19, 20263 min read
Developer Tools

What are Spring Boot SSL bundles and how do they help?

SSL bundles name a set of trust material, JKS or PEM, and reuse it across web server and clients. What to configure and what to keep out of properties.

Oct 19, 20263 min read
Developer Tools

How do I build a layered Spring Boot Docker image with jarmode extract?

Extract the uber jar into layers in a builder stage and copy each layer separately. Faster rebuilds, smaller pushes, and a cleaner view of what changed.

Oct 19, 20264 min read
Developer Tools

Spreadsheet, catalog or database: where should the inventory live?

A spreadsheet works for the first 20 integrations. Past that, a service catalog or database with owners and checks keeps your SDK and API inventory honest.

Oct 19, 20263 min read
Developer Tools

How do you use the SPDX license list data to validate license IDs?

Download the SPDX license list as JSON, pin its version, check each ID and its deprecated flag, and keep exceptions separate. A guide for tool builders.

Oct 19, 20264 min read
Developer Tools

What are SPDX 3.0 profiles and which should an SBOM declare?

SPDX 3.0.1 defines ten profile identifiers, including core, software, security and lite. Learn what declaring one in profileConformance promises.

Oct 19, 20264 min read
Developer Tools

Should SOURCE_DATE_EPOCH be zero or the commit time?

Both give repeatable builds. Zero is simple, while the commit time reflects the age of the code. The spec asks for a value that depends only on the source.

Oct 19, 20264 min read

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