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September 5, 2024 19:03
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A simple script to count net changes in the git repository for the defined file extensions (useful for daily goals when writing thesis/articles)
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| #!/bin/bash | |
| # Git Word Count Analyzer | |
| # Copyright (c) 2024 Daniel Borek | |
| # MIT License | |
| # Inspired by https://www.gijsvandam.nl/post/measuring-your-writing-progress-with-a-git-word-count/ | |
| # Configuration | |
| # FILE_EXTENSIONS: Array of file extensions to analyze (e.g., "typ" "md") | |
| # Separate multiple extensions with spaces | |
| FILE_EXTENSIONS=("typ" "md" ) | |
| # DAYS_TO_SEARCH: Number of days to analyze, starting from today | |
| # The script will stop at the repository's creation date if reached | |
| # Default is set to 1 week (7 days) | |
| DAYS_TO_SEARCH=7 | |
| # Function to calculate word changes for a single commit | |
| calculate_word_changes() { | |
| local sha=$1 | |
| local parent_sha=$(git rev-parse $sha^@ 2>/dev/null || git hash-object -t tree /dev/null) | |
| local file_patterns=() | |
| for ext in "${FILE_EXTENSIONS[@]}"; do | |
| file_patterns+=("*.$ext") | |
| done | |
| if [ "$parent_sha" = "$sha" ]; then | |
| # This is the first commit | |
| local added=$(git show --format= --name-only $sha | grep -E "\.($(IFS=\|; echo "${FILE_EXTENSIONS[*]}"))\$" | xargs cat | wc -w | xargs) | |
| local deleted=0 | |
| local duplicated=0 | |
| else | |
| local added=$(git diff --word-diff=porcelain $parent_sha..$sha -- "${file_patterns[@]}" | grep -e"^+[^+]" | wc -w | xargs) | |
| local deleted=$(git diff --word-diff=porcelain $parent_sha..$sha -- "${file_patterns[@]}" | grep -e"^-[^-]" | wc -w | xargs) | |
| local duplicated=$(git diff $parent_sha..$sha -- "${file_patterns[@]}" | grep -e"^+[^+]" -e"^-[^-]" | sed -e's/.//' | sort | uniq -d | wc -w | xargs) | |
| fi | |
| echo "$added $deleted $duplicated" | |
| } | |
| # Function to format numbers with leading spaces | |
| format_number() { | |
| printf "%6d" $1 | |
| } | |
| # Get the date of the earliest commit | |
| earliest_date=$(git log --reverse --format=%ad --date=short | head -1) | |
| # Print header | |
| printf "%-10s %8s %8s %11s %11s\n" "Date" "Added" "Deleted" "Duplicated" "Net Change" | |
| printf "%-10s %8s %8s %11s %11s\n" "----------" "--------" "--------" "-----------" "-----------" | |
| for i in $(seq 0 $((DAYS_TO_SEARCH - 1))); do | |
| # Calculate the date we're checking | |
| check_date=$(date -v-${i}d +%Y-%m-%d) | |
| # If we've gone past the earliest commit date, break the loop | |
| if [[ "$check_date" < "$earliest_date" ]]; then | |
| break | |
| fi | |
| j=$((i+1)) | |
| next_date=$(date -v-${j}d +%Y-%m-%d) | |
| # Get the list of commits for this day | |
| commits=$(git rev-list --since="$next_date" --until="$check_date" main) | |
| total_added=0 | |
| total_deleted=0 | |
| total_duplicated=0 | |
| if [ -n "$commits" ]; then | |
| for sha in $commits; do | |
| if git diff-tree --no-commit-id --name-only -r $sha | grep -qE "\.($(IFS=\|; echo "${FILE_EXTENSIONS[*]}"))\$"; then | |
| read added deleted duplicated <<< $(calculate_word_changes $sha) | |
| total_added=$((total_added + added)) | |
| total_deleted=$((total_deleted + deleted)) | |
| total_duplicated=$((total_duplicated + duplicated)) | |
| fi | |
| done | |
| fi | |
| net_change=$((total_added - total_deleted)) | |
| # Output the results for this day | |
| printf "%-10s %8s %8s %11s " "$check_date" "$(format_number $total_added)" "$(format_number $total_deleted)" "$(format_number $total_duplicated)" | |
| if [ $net_change -gt 0 ]; then | |
| printf "%11s\n" "+$(format_number $net_change)" | |
| elif [ $net_change -lt 0 ]; then | |
| printf "%11s\n" "-$(format_number ${net_change#-})" | |
| else | |
| printf "%11s\n" "$(format_number 0)" | |
| fi | |
| done |
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