tj.git-extras/bin/git-summary
spacewander d4de567ca7 git-line-summary: should be the history
Also remove some trailing lines after the output.
2019-07-23 22:13:29 +08:00

128 lines
2.2 KiB
Bash
Executable file

#!/usr/bin/env bash
cd "$(git root)" || { echo "Can't cd to top level directory";exit 1; }
commit=""
test $# -ne 0 && commit=$@
project=${PWD##*/}
#
# get date for the given <commit>
#
date() {
git log --pretty='format: %ai' $1 | cut -d ' ' -f 2
}
#
# get active days for the given <commit>
#
active_days() {
date $1 | sort -r | uniq | awk '
{ sum += 1 }
END { print sum }
'
}
#
# get the commit total
#
commit_count() {
git log --oneline $commit | wc -l | tr -d ' '
}
#
# total file count
#
file_count() {
git ls-files | wc -l | tr -d ' '
}
#
# list authors
#
format_authors() {
# a rare unicode character is used as separator to avoid conflicting with
# author name. However, Linux column utility will escape tab if separator
# specified, so we do unesaping after it.
LC_ALL=C awk '
{ args[NR] = $0; sum += $0 }
END {
for (i = 1; i <= NR; ++i) {
printf "%s♪%2.1f%%\n", args[i], 100 * args[i] / sum
}
}
' | column -t -s♪ | sed "s/\\\x09/\t/g"
}
#
# fetch repository age from oldest commit
#
repository_age() {
git log --reverse --pretty=oneline --format="%ar" | head -n 1 | LC_ALL=C sed 's/ago//'
}
#
# list the last modified author for each line
#
single_file() {
while read data
do
if [[ $(file "$data") = *text* ]]; then
git blame --line-porcelain "$data" 2>/dev/null | grep "^author\ " | LC_ALL=C sed -n 's/^author //p';
fi
done
}
#
# list the author for all file
#
lines() {
git ls-files | single_file
}
#
# get the number of the lines
#
line_count() {
lines | wc -l
}
result() {
lines | sort | uniq -c | sort -rn | awk '
{ args[NR] = $0; sum += $0 }
END {
for (i = 1; i <= NR; ++i) {
printf " %s, %2.1f%%\n", args[i], 100 * args[i] / sum
}
}
' | column -t -s,
}
# summary
echo
echo " project : $project"
if test "$1" = "--line"; then
echo " lines : $(line_count)"
echo " authors :"
lines | sort | uniq -c | sort -rn | format_authors
else
echo " repo age :" $(repository_age)
echo " active :" $(active_days) days
echo " commits :" $(commit_count)
if test "$commit" = ""; then
echo " files :" $(file_count)
fi
echo " authors : "
git shortlog -n -s $commit | format_authors
fi