Analyze the current directory c++ source files and copy them based on their layout into a new folder. Great for uploading as contexts for projects that do not have a great API for managing files.

flatten-source-files.sh

#!/bin/bash

# create a prefix based on the parent git repo directory name
prefix=$(basename "$(git rev-parse --show-toplevel)")

# Create a directory to store the flattened files
outdir="/tmp/flattened"
mkdir -p "$outdir"

# Find c++ files, rename them, and copy to flattened directory
find . -name "*.cpp" -o -name "*.h" | while read -r file; do
    # ignore if not in git tree
    if ! git ls-files --error-unmatch "$file" &>/dev/null; then
        continue
    fi
    # Remove leading './' and replace '/' with '-'
    newname=$(echo "$file" | sed 's/^\.\///' | tr '/' '-')
    echo "Processing $file to $outdir/$prefix-$newname"
    # Copy the file to the flattened directory with the new name
    cp "$file" "$outdir/$prefix-$newname"
done