.tip

Feb 16, 2026 · one of the small things

git add -p to commit only the lines that belong together

A file with a bug fix and an unrelated rename in it makes one bad commit or two lazy ones. Patch mode lets you stage hunk by hunk.

git add -p
# y stage, n skip, s split the hunk, e edit it by hand

Reviewers get a commit that says one thing. You get a diff you can revert without losing the other change.

git

~/tips/today — 2026-09-04

~cat tips/today

Session cookies: HttpOnly, Secure, SameSite=Lax

securityhttp

Three attributes, each closing a class of attack. HttpOnly keeps scripts from reading it. Secure keeps it off plain HTTP. SameSite=Lax stops it being sent on cross-site POSTs, which is most CSRF.

Set-Cookie: session=...; HttpOnly; Secure; SameSite=Lax; Path=/; Max-Age=1209600

Strict breaks arriving from an external link while logged in. Lax is the default worth keeping.

↵ open y yesterday l ls /tips

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