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git-wordiness
#!/bin/bash
# FIXME: Names with non-ASCII characters can throw-off alignment of columns.
usage() {
cat <<HELPTXT 1>&2
git-wordiness [OPTIONS]
List general sums about commit messages (i.e., wc output).
OPTIONS
-s[PREFIX]
Pass all names through sha1sum (with an optional PREFIX).
Can be used to mask names, if that's necessary.
-csv
Output results in comma-separated value format.
-tsv
Output results in tab-separated value format.
-order=ORDER
Set the output ordering to one of the following:
- commits, c
Order by total commits.
- wpc, W
Order by words-per-commit
- lines, l
Order by lines used in all commit messages
(does not rewrap or unbreak paragraphs).
- words, w
Order by total words used in all commit messages.
- bytes, b
Order by bytes used for all commit messages.
- name, n
Order by committer name.
-r|-reverse
Reverse the output order.
HELPTXT
}
set_order() {
local oarg="$1"
case "$oarg" in
commits|c)
order=1
;;
wpc|W)
order=2
;;
lines|l)
order=3
;;
words|w)
order=4
;;
bytes|b)
order=5
;;
name|n)
order=6
ordertype='-d'
;;
*)
printf "unrecognized ordering '%s'\n" "$oarg" 1>&2
exit 1
;;
esac
}
hfmt='%10s %10s %10s %10s %10s %s\n'
fmt='%10d %10.2f %10d %10d %10d %s\n'
head=1
order=1
ordertype='-n'
reverse='tac'
shanames=0
shaprefix=''
sep=' '
logargs=(--all)
while [[ $# -gt 0 ]] ; do
arg="$1"
shift
case "$arg" in
-h|-help|--help)
usage
exit 0
;;
-s=*)
shanames=1
shaprefix="${arg#-s=}"
;;
-s*)
shanames=1
shaprefix="${arg#-s}"
;;
-c|-csv|--csv)
hfmt='%s,%s,%s,%s,%s,%s\n'
fmt='%d,%.2f,%d,%d,%d,%s\n'
sep=','
;;
-t|-tsv|--tsv)
hfmt='%s\t%s\t%s\t%s\t%s\t%s\n'
fmt='%d\t%.2f\t%d\t%d\t%d\t%s\n'
sep="$(printf '\t')"
;;
-order=*) set_order "${arg#-order=*}" ;;
--order=*) set_order "${arg#--order=*}" ;;
-o?) set_order "${arg:2}" ;;
-r|-reverse|--reverse) reverse='cat' ;;
-nh|-nohead|--nohead) head=0 ;;
--)
logargs=("$@")
break
;;
*)
logargs=("$arg" "$@")
break
;;
esac
done
export shanames
export shaprefix
export logquote="$(if [[ "${#logargs[@]}" -gt 0 ]] ; then printf ' %q' "${logargs[@]}" ; fi)"
export fmt
if [[ $head == 1 ]]
then
printf "$hfmt" COMMITS WPC LINES WORDS BYTES NAME
fi
git log --pretty='%aN' --use-mailmap "${logargs[@]}" |
sort |
uniq |
xargs -I @@ \
env NAME=@@ REGEX='^@@ <' \
bash -c $'
wcout=(
# lines words bytes
$(git log $logquote --use-mailmap --pretty="%B" --author="$REGEX" | wc)
)
commits=$(git log $logquote --use-mailmap --pretty="%H" --author="$REGEX" | wc -l)
comp=(
"$commits"
"$(bc <<< "scale=2; ${wcout[1]}/${commits}")"
"${wcout[@]}"
)
if [ $shanames -eq 1 ]; then
NAME="$(printf %s%s "$shaprefix" "$NAME" | sha1sum | fex 1)"
fi
printf "$fmt" "${comp[@]}" "$NAME"
' | \
sort -b $ordertype -k "+${order}n" |
$reverse
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