commit-json

#!/bin/bash

wt="$1"
gd="$2"
branch="$3"

IFS='' read -r -d '' FORMAT << 'EOF'
{
    ^^^^author^^^^: { ^^^^name^^^^: ^^^^%aN^^^^,
    ^^^^email^^^^: ^^^^%aE^^^^,
    ^^^^date^^^^: ^^^^%aD^^^^,
    ^^^^dateISO8601^^^^: ^^^^%aI^^^^},
    ^^^^body^^^^: ^^^^%b^^^^,
    ^^^^commitHash^^^^: ^^^^%H^^^^,
    ^^^^commitHashAbbreviated^^^^: ^^^^%h^^^^,
    ^^^^committer^^^^: {
    ^^^^name^^^^: ^^^^%cN^^^^,
    ^^^^email^^^^: ^^^^%cE^^^^,
    ^^^^date^^^^: ^^^^%cD^^^^,
    ^^^^dateISO8601^^^^: ^^^^%cI^^^^},
    ^^^^encoding^^^^: ^^^^%e^^^^,
    ^^^^notes^^^^: ^^^^%N^^^^,
    ^^^^parent^^^^: ^^^^%P^^^^,
    ^^^^parentAbbreviated^^^^: ^^^^%p^^^^,
    ^^^^refs^^^^: ^^^^%D^^^^,
    ^^^^signature^^^^: {
    ^^^^key^^^^: ^^^^%GK^^^^,
    ^^^^signer^^^^: ^^^^%GS^^^^,
    ^^^^verificationFlag^^^^: ^^^^%G?^^^^},
    ^^^^subject^^^^: ^^^^%s^^^^,
    ^^^^subjectSanitized^^^^: ^^^^%f^^^^,
    ^^^^tree^^^^: ^^^^%T^^^^,
    ^^^^treeAbbreviated^^^^: ^^^^%t^^^^
},
EOF
FORMAT=$(echo "$FORMAT"|tr -d '\r\n ')

git --work-tree="$wt" --git-dir="$gd" log --pretty=format:"$FORMAT" "$branch" | \
    sed -e ':a' -e 'N' -e '$!ba' -e s'/\^^^^},\n{\^^^^/^^^^},{^^^^/g' \
    -e 's/\\/\\\\/g' -e 's/"/\\"/g' -e 's/\^^^^/"/g' -e '$ s/,$//' | \
    sed -e ':a' -e 'N' -e '$!ba' -e 's/\r//g' -e 's/\n/\\n/g' -e 's/\t/\\t/g' | \
    awk 'BEGIN { ORS=""; printf("[") } { print($0) } END { printf("]\n") }'