git blame -C — follow code that moved between files

git-blame-copy.sh

# git blame -C — follow moved code across files
# Standard blame breaks when code moves. -C detects copies.

# Without copy detection — everything attributed to the refactor commit:
git blame src/freq.py

# With copy detection — attribution follows the original author:
git blame -C -C -C src/freq.py

# Three -C flags:
#   -C        detect copies within the same commit
#   -C -C     also detect copies from any commit that touched the file
#   -C -C -C  detect copies from any commit, across any file

# Functions that moved during a refactor now show the commit
# that *created* the logic, not the commit that moved it.