improving-selective-staging

Stage specific line ranges in git by constructing and applying patches programmatically. Use when: (1) asked to create atomic commits but a file contains multiple unrelated changes, (2) part of a change is ready for commit while another part remains unfinished, (3) separating a bug fix from surrounding refactoring in the same file, (4) the user asks to commit only specific lines or hunks from modified files, (5) git add -p is unavailable due to non-interactive context, (6) building tooling that requires programmatic control over what gets staged