-
Notifications
You must be signed in to change notification settings - Fork 1.2k
/
git-summary
executable file
·250 lines (224 loc) · 6.18 KB
/
git-summary
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
#!/usr/bin/env bash
cd "$(git root)" || { echo "Can't cd to top level directory";exit 1; }
SUMMARY_BY_LINE=
DEDUP_BY_EMAIL=
MERGES_ARG=
OUTPUT_STYLE=
for arg in "$@"; do
case "$arg" in
--line)
SUMMARY_BY_LINE=1
;;
--dedup-by-email)
DEDUP_BY_EMAIL=1
;;
--no-merges)
MERGES_ARG="--no-merges"
;;
--output-style)
OUTPUT_STYLE="$2"
shift
;;
-*)
>&2 echo "unknown argument $arg found"
exit 1
;;
*)
# set the argument back
set -- "$@" "$arg"
;;
esac
shift
done
if [ -n "$DEDUP_BY_EMAIL" ] && [ -n "$SUMMARY_BY_LINE" ]; then
>&2 echo "--dedup-by-email used with --line is not supported"
exit 1
fi
if [ -n "$MERGES_ARG" ] && [ -n "$SUMMARY_BY_LINE" ]; then
>&2 echo "--no-merges used with --line is not supported"
exit 1
fi
commit="HEAD"
if [ -n "$SUMMARY_BY_LINE" ]; then
paths=( "$@" )
else
[ $# -ne 0 ] && commit=$*
fi
project=${PWD##*/}
#
# get date for the given <commit>
#
commit_date() {
# the $1 can be empty
# shellcheck disable=SC2086
git log $MERGES_ARG --pretty='format: %ai' "$1" | cut -d ' ' -f 2
}
#
# get active days for the given <commit>
#
active_days() {
commit_date "$1" | sort -r | uniq | awk '
{ sum += 1 }
END { print sum }
'
}
#
# get the commit total
#
commit_count() {
# shellcheck disable=SC2086
git log $MERGES_ARG --oneline "$commit" | wc -l | tr -d ' '
}
#
# total file count
#
file_count() {
git ls-files | wc -l | tr -d ' '
}
#
# remove duplicate authors who belong to the same email address
#
dedup_by_email() {
# in:
# 27 luo zexuan <LuoZexuan@xxx.com>
# 7 罗泽轩 <luozexuan@xxx.com>
# out:
# 34 luo zexuan
LC_ALL=C awk '
{
sum += $1
last_field = tolower($NF)
if (last_field in emails) {
emails[last_field] += $1
} else {
email = last_field
emails[email] = $1
# set commits/email to empty
$1=$NF=""
sub(/^[[:space:]]+/, "", $0)
sub(/[[:space:]]+$/, "", $0)
name = $0
if (name in names) {
# when the same name is associated with existed email,
# merge the previous email into the later one.
emails[email] += emails[names[name]]
emails[names[name]] = 0
}
names[name] = email
}
}
END {
for (name in names) {
email = names[name]
printf "%6d\t%s\n", emails[email], name
}
}' | sort -rn -k 1
}
#
# 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//'
}
#
# fetch repository age of the latest commit
#
last_active() {
git log --pretty=oneline --format="%ar" -n 1
}
#
# list the last modified author for each line
#
single_file() {
while read -r data
do
if [[ $(file "$data") = *text* ]]; then
git blame --line-porcelain "$data" 2>/dev/null | grep "^author " | LC_ALL=C sed -n 's/^author //p';
fi
done
}
current_branch_name() {
git rev-parse --abbrev-ref HEAD
}
#
# list the author for all file
#
lines() {
git ls-files -- "$@" | single_file
}
#
# get the number of the lines
#
line_count() {
lines "$@" | wc -l
}
uncommitted_changes_count() {
git status --porcelain | wc -l
}
COLUMN_CMD_DELIMTER="¬" # Hopefully, this symbol is not used in branch names... I use it as a separator for columns
SP="$COLUMN_CMD_DELIMTER|"
print_summary_by_line() {
if [ "$OUTPUT_STYLE" == "tabular" ]; then
tabular_headers="# Repo $SP Lines"
echo -e "$tabular_headers\n$project $SP $(line_count "${paths[@]}")" | column -t -s "$COLUMN_CMD_DELIMTER"
elif [ "$OUTPUT_STYLE" == "oneline" ]; then
echo "$project / lines: $(line_count "${paths[@]}")"
elif [ -n "$SUMMARY_BY_LINE" ]; then
echo
echo " project : $project"
echo " lines : $(line_count "${paths[@]}")"
echo " authors :"
lines "${paths[@]}" | sort | uniq -c | sort -rn | format_authors
fi
}
print_summary() {
if [ "$OUTPUT_STYLE" == "tabular" ]; then
tabular_headers="# Repo $SP Age $SP Last active $SP Active on $SP Commits $SP Uncommitted $SP Branch"
echo -e "$tabular_headers\n$project $SP $(repository_age) $SP $(last_active) $SP $(active_days "$commit") days $SP $(commit_count "$commit") $SP $(uncommitted_changes_count) $SP $(current_branch_name)" | column -t -s "$COLUMN_CMD_DELIMTER"
elif [ "$OUTPUT_STYLE" == "oneline" ]; then
echo "$project / age: $(repository_age) / last active: $(last_active) / active on $(active_days "$commit") days / commits: $(commit_count "$commit") / uncommitted: $(uncommitted_changes_count) / branch: $(current_branch_name)"
else
echo
echo " project : $project"
echo " repo age : $(repository_age)"
echo " branch: : $(current_branch_name)"
echo " last active : $(last_active)"
echo " active on : $(active_days "$commit") days"
echo " commits : $(commit_count "$commit")"
# The file count doesn't support passing a git ref so ignore it if a ref is given
if [ "$commit" == "HEAD" ]; then
echo " files : $(file_count)"
fi
echo " uncommitted : $(uncommitted_changes_count)"
echo " authors : "
if [ -n "$DEDUP_BY_EMAIL" ]; then
# the $commit can be empty
# shellcheck disable=SC2086
git shortlog $MERGES_ARG -n -s -e "$commit" | dedup_by_email | format_authors
else
# shellcheck disable=SC2086
git shortlog $MERGES_ARG -n -s "$commit" | format_authors
fi
fi
}
if [ -n "$SUMMARY_BY_LINE" ]; then
print_summary_by_line
else
print_summary
fi