|
| 1 | +#!/usr/bin/env bash |
| 2 | +# |
| 3 | +# Prints the number of authors per weekday. |
| 4 | +# |
| 5 | +# <weekday> <total> <average> |
| 6 | + |
| 7 | +# * `git log` |
| 8 | +# - Show logs. |
| 9 | +# * `awk '{}'` |
| 10 | +# - Compute average number of authors per weekday. |
| 11 | +git log --format=format:"%ad %aN" --date=format:"%a %b %d %Y" --use-mailmap | awk ' |
| 12 | +BEGIN { |
| 13 | + split("Mon Tue Wed Thu Fri Sat Sun", days); |
| 14 | +
|
| 15 | + # Get the date of the first commit: |
| 16 | + cmd = "git log --reverse --date=short | grep Date | head -n 1" |
| 17 | + (cmd | getline tmp) |
| 18 | + close(cmd) |
| 19 | +
|
| 20 | + split(tmp, date, OFS) |
| 21 | + split(date[2], t1, "-") |
| 22 | +
|
| 23 | + # Get the date for "now": |
| 24 | + cmd = "date '\''+%Y %m %d'\''" |
| 25 | + (cmd | getline now) |
| 26 | + close(cmd) |
| 27 | +
|
| 28 | + split(now, t2, OFS) |
| 29 | +
|
| 30 | + # Compute the number of days between the first commit and "now": |
| 31 | + num = daynum(t1[1], t2[1], 0+t1[2], 0+t2[2], 0+t1[3], 0+t2[3]) |
| 32 | +} |
| 33 | +
|
| 34 | +{ |
| 35 | + day = $4 OFS $2 OFS $3 |
| 36 | + name = $5 $6 |
| 37 | + key = day SUBSEP name |
| 38 | + if (key in lines) { |
| 39 | + next |
| 40 | + } |
| 41 | + lines[day,name] = 1 |
| 42 | + counts[$1] += 1 |
| 43 | +} |
| 44 | +
|
| 45 | +END { |
| 46 | + weeks = int(num/7) |
| 47 | + for (i = 1; i <= 7; i++) { |
| 48 | + count = counts[days[i]] |
| 49 | + print days[i] OFS count OFS count/weeks |
| 50 | + } |
| 51 | +} |
| 52 | +
|
| 53 | +# Computes the number of days between a start date and an end date. |
| 54 | +# |
| 55 | +# Parameters: |
| 56 | +# y1 - start year |
| 57 | +# y2 - end year |
| 58 | +# m1 - start month |
| 59 | +# m2 - end month |
| 60 | +# d1 - start day |
| 61 | +# d2 - end day |
| 62 | +# |
| 63 | +# Returns: |
| 64 | +# number of days |
| 65 | +# |
| 66 | +function daynum(y1, y2, m1, m2, d1, d2, days, i, n) { |
| 67 | + split("31 28 31 30 31 30 31 31 30 31 30 31", days) |
| 68 | +
|
| 69 | + # 365 days in a year, plus one during a leap year: |
| 70 | + if (y2 > y1) { |
| 71 | + n = (y2-y1)*365 + int((y2-y1)/4) |
| 72 | + } |
| 73 | + # Adjust number of days in February if leap year... |
| 74 | + if (y2 % 4 == 0) { |
| 75 | + days[2] += 1 |
| 76 | + } |
| 77 | + if ( m2 > m1 ) { |
| 78 | + for (i = m1; i < m2; i++) { |
| 79 | + n += days[i] |
| 80 | + } |
| 81 | + } else if ( m2 < m1 ) { |
| 82 | + for (i = m1; i >= m2; i--) { |
| 83 | + n -= days[i] |
| 84 | + } |
| 85 | + } |
| 86 | + return n + d2 - d1 |
| 87 | +} |
| 88 | +' |
0 commit comments