Trim redundant code
[u/fanf2/git-graph.git] / git-graph
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1#!/usr/bin/perl
2
3use warnings;
4use strict;
5
6use Getopt::Long qw{:config gnu_getopt posix_default};
37fadc81 7use POSIX;
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8use Term::ReadKey;
9
10$0 =~ s{^.*/([^/]+)$}{$1};
11
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12my %opt;
13GetOptions(\%opt, qw{
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14 cancel|c
15 overlay|o
16 stack|s
c562dc48 17}) or exit 1;
cce87900 18
22e04a63 19$opt{overlay} = 1 unless $opt{cancel} or $opt{stack};
cce87900 20
37fadc81 21my @terminal = GetTerminalSize;
c562dc48 22my $width = $terminal[0] - 11;
eed91edb 23my $height = $terminal[1] - 2;
37fadc81 24
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25my %add;
26my %del;
27
28my $addmax = 0;
29my $delmax = 0;
30my $canmax = 0;
31
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32my $date;
33
34for (qx{git log --pretty=format:%ct --shortstat --since='$height days ago'}) {
35 next if m{^\s*$};
36 if (m{^(\d{10})\n$}) {
37 $date = int ($1 / 86400);
38 next;
39 }
40 m{^\ \d+\ files?\ changed
41 (?:,\ (\d+)\ insertion[s()+]+)?
42 (?:,\ (\d+)\ deletion[s()-]+)?$}x
43 or die "$0: bad stats $_";
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44 my ($add,$del) = ($1 || 0, $2 || 0);
45 $add{$date} += $add;
46 $del{$date} += $del;
47 $addmax = $add{$date} if $addmax < $add{$date};
48 $delmax = $del{$date} if $delmax < $del{$date};
49 my $can = $add{$date} > $del{$date} ?
50 $add{$date} - $del{$date} :
51 $del{$date} - $add{$date};
52 $canmax = $can if $canmax < $can;
53}
54
55my $max = $opt{cancel} ? $canmax :
56 $opt{stack} ? $addmax + $delmax :
57 $addmax > $delmax ? $addmax : $delmax;
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58my $scale = $width / $max;
59
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60my $today = int (time / 86400);
61
62for my $date ($today - $height .. $today) {
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63 my $add = 0;
64 my $del = 0;
65 my $mod = 0;
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66 $add{$date} //= 0;
67 $del{$date} //= 0;
d419a729 68 if ($opt{cancel} or $opt{overlay}) {
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69 if ($add{$date} > $del{$date}) {
70 $add = $add{$date} - $del{$date};
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71 } else {
72 $del = $del{$date} - $add{$date};
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73 }
74 }
75 if ($opt{overlay}) {
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76 $mod = $add{$date} < $del{$date} ?
77 $add{$date} : $del{$date};
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78 }
79 if ($opt{stack}) {
80 $add = $add{$date};
81 $del = $del{$date};
cce87900 82 }
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83 my $greg = strftime "%b %d %w", localtime $date * 86400;
84 $greg =~ s{(\d)$}{substr "sMTWTFs", $1, 1}e;
85 printf "$greg \e[33m%s\e[32m%s\e[31m%s\e[0m\n",
86 "#" x ($mod && 1 + $mod * $scale),
87 "+" x ($add && 1 + $add * $scale),
88 "-" x ($del && 1 + $del * $scale);
cce87900 89}
cb4ff77a 90printf " \e[33m#\e[0m <- %-8.1f %s %8d ->\n",
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91 1/$scale,
92 " " x ($width - 25),
93 $max;