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#!/bin/bash
#
# GIT ACTIVITY
#
# DESCRIPTION
# Generate a git commit frequency list in JSON
#
# ARGS
# 1st arg: path containing bare repositories
# 2nd arg (optional): user to filter commits by
#
set -e
if [ "$#" -eq 0 ]; then
echo "Error: directory containing repositories no specified"
exit 1
fi
repos="$1"
user="$2"
outfile="/tmp/commits.json"
# Check repo directory exists
if [ ! -d "$repos" ]; then
echo "Error: directory '$repos' does not exist!"
exit 1
fi
# Change to directory containing repositories
cd "$repos" || exit 1
# Create an associative array
declare -A commits
# Loop through repos
for dir in "$repos"/*.git/; do
# Change to repository directory
cd "$dir" || exit 1
echo "Scanning $(basename ${dir%.*})"
# Get commit frequencies
log=$(git log --pretty=format:'%cs %cn' | uniq -c | sed 's/^\s*//')
# Filter frequency list by user
[ -n "$user" ] && log=$(echo "$log" | grep "$user")
# Split newlines
IFS='
'
# Loops frequency list
for commit in $log; do
count=$(echo -e "$commit" | awk '{print $1}')
date=$(echo -e "$commit" | awk '{print $2}')
# Ensure empty dates have a value
[[ ${commits[$date]} == "" ]] && commits[$date]=0
# Update count for date
totalcommits=$((commits[$date] + count))
commits[$date]=$totalcommits
# Debugging
# echo "Added $totalcommits commits to $date to ${dir%.*}"
done
# Exit repo directory
cd ../
done
# Covert frequency list to JSON
for k in "${!commits[@]}"; do
json+="\t\"$k\": \"${commits[$k]}\",\n";
done
json=$(echo -e "$json" | sort -nr)
json="{\n${json%,}\n}"
# Store
echo -e "$json" > "$outfile" \
&& echo "Updated $outfile"
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