zephyr-release-stats.sh

gistfile1.txt

#!/bin/bash
set -e

# usage:
# ./zephyr-release-stats.sh | tee zephyr-release-stats.csv

cd $HOME/zephyrproject/zephyr

RELEASES=( v2.0.0 v2.1.0 v2.2.0 v2.3.0 v2.4.0 v2.5.0 v2.6.0 v2.7.0 v3.0.0 v3.1.0 v3.2.0 v3.3.0 v3.4.0 v3.5.0 )
N=${#RELEASES[@]}

echo "Previous,Current,StartCommit,EndCommit,CommitCount,Architectures,Boards,UniqueContributors"

for ((i=1; i<N; i++)); do
  j=$((i-1))
  PREV=${RELEASES[j]}
  REL=${RELEASES[i]}

  START=$(git rev-parse --short $PREV)
  END=$(git rev-parse --short $REL~1)
  
  COUNT=$(git rev-list --count $START..$END)

  git checkout $END &>/dev/null
  ARCHES=$(ls arch/*/Kconfig | wc -l)
  # +1 for x86_64
  ARCHES=$((ARCHES+1))
  # +1 for riscv64
  ARCHES=$((ARCHES+1))
  BOARDS=$(find boards -name '*_defconfig' | wc -l)

  TMPFILE=$(mktemp)
  git log $START..$END | grep Signed | sort -u > $TMPFILE
  UNIQUE=$(wc -l $TMPFILE | awk '{print $1}')
  rm -f $TMPFILE

  echo "$PREV,$REL,$START,$END,$COUNT,$ARCHES,$BOARDS,$UNIQUE"
done