我是否可以调用一个命令来计算Git存储库中特定作者更改的行数?我知道一定有方法来计算提交的数量,因为Github为他们的影响图这样做。


当前回答

我编写了这个Perl脚本来完成这项任务。

#!/usr/bin/env perl

use strict;
use warnings;

# save the args to pass to the git log command
my $ARGS = join(' ', @ARGV);

#get the repo slug
my $NAME = _get_repo_slug();

#get list of authors
my @authors = _get_authors();
my ($projectFiles, $projectInsertions, $projectDeletions) = (0,0,0);
#for each author
foreach my $author (@authors) {
  my $command = qq{git log $ARGS --author="$author" --oneline --shortstat --no-merges};
  my ($files, $insertions, $deletions) = (0,0,0);
  my @lines = `$command`;
  foreach my $line (@lines) {
    if ($line =~ m/^\s(\d+)\s\w+\s\w+,\s(\d+)\s\w+\([\+|\-]\),\s(\d+)\s\w+\([\+|\-]\)$|^\s(\d+)\s\w+\s\w+,\s(\d+)\s\w+\(([\+|\-])\)$/) {
      my $lineFiles = $1 ? $1 : $4;
      my $lineInsertions = (defined $6 && $6 eq '+') ? $5 : (defined $2) ? $2 : 0;
      my $lineDeletions = (defined $6 && $6 eq '-') ? $5 : (defined $3) ? $3 : 0;
      $files += $lineFiles;
      $insertions += $lineInsertions;
      $deletions += $lineDeletions;
      $projectFiles += $lineFiles;
      $projectInsertions += $lineInsertions;
      $projectDeletions += $lineDeletions;
    }
  }
  if ($files || $insertions || $deletions) {
    printf(
      "%s,%s,%s,+%s,-%s,%s\n",
      $NAME,
      $author,
      $files,
      $insertions,
      $deletions,
      $insertions - $deletions
    );
  }
}

printf(
  "%s,%s,%s,+%s,-%s,%s\n",
  $NAME,
  'PROJECT_TOTAL',
  $projectFiles,
  $projectInsertions,
  $projectDeletions,
  $projectInsertions - $projectDeletions
);

exit 0;

#get the remote.origin.url joins that last two pieces (project and repo folder)
#and removes any .git from the results. 
sub _get_repo_slug {
  my $get_remote_url = "git config --get remote.origin.url";
  my $remote_url = `$get_remote_url`;
  chomp $remote_url;

  my @parts = split('/', $remote_url);

  my $slug = join('-', @parts[-2..-1]);
  $slug =~ s/\.git//;

  return $slug;
}

sub _get_authors {
  my $git_authors = 'git shortlog -s | cut -c8-';
  my @authors = `$git_authors`;
  chomp @authors;

  return @authors;
}

我将其命名为git-line-changes-by-author,并放入/usr/local/bin。因为它保存在我的路径中,所以我可以在2020-01-01之后发出命令git line-changes-by-author—before 2018-12-31—以获得2019年的报告。举个例子。如果我拼错了名字,git会建议正确的拼写。

你可能想要调整_get_repo_slug子只包括remote.origin.url的最后一部分,因为我的回购保存为项目/回购,而你的可能不是。

其他回答

吉特名声

https://github.com/oleander/git-fame-rb

这是一个很好的工具,可以一次性获得所有作者的计数,包括提交和修改文件的计数:

sudo apt-get install ruby-dev
sudo gem install git_fame
cd /path/to/gitdir && git fame

https://github.com/casperdcl/git-fame上也有Python版本(@fracz提到过):

sudo apt-get install python-pip python-dev build-essential 
pip install --user git-fame
cd /path/to/gitdir && git fame

样例输出:

Total number of files: 2,053
Total number of lines: 63,132
Total number of commits: 4,330

+------------------------+--------+---------+-------+--------------------+
| name                   | loc    | commits | files | percent            |
+------------------------+--------+---------+-------+--------------------+
| Johan Sørensen         | 22,272 | 1,814   | 414   | 35.3 / 41.9 / 20.2 |
| Marius Mathiesen       | 10,387 | 502     | 229   | 16.5 / 11.6 / 11.2 |
| Jesper Josefsson       | 9,689  | 519     | 191   | 15.3 / 12.0 / 9.3  |
| Ole Martin Kristiansen | 6,632  | 24      | 60    | 10.5 / 0.6 / 2.9   |
| Linus Oleander         | 5,769  | 705     | 277   | 9.1 / 16.3 / 13.5  |
| Fabio Akita            | 2,122  | 24      | 60    | 3.4 / 0.6 / 2.9    |
| August Lilleaas        | 1,572  | 123     | 63    | 2.5 / 2.8 / 3.1    |
| David A. Cuadrado      | 731    | 111     | 35    | 1.2 / 2.6 / 1.7    |
| Jonas Ängeslevä        | 705    | 148     | 51    | 1.1 / 3.4 / 2.5    |
| Diego Algorta          | 650    | 6       | 5     | 1.0 / 0.1 / 0.2    |
| Arash Rouhani          | 629    | 95      | 31    | 1.0 / 2.2 / 1.5    |
| Sofia Larsson          | 595    | 70      | 77    | 0.9 / 1.6 / 3.8    |
| Tor Arne Vestbø        | 527    | 51      | 97    | 0.8 / 1.2 / 4.7    |
| spontus                | 339    | 18      | 42    | 0.5 / 0.4 / 2.0    |
| Pontus                 | 225    | 49      | 34    | 0.4 / 1.1 / 1.7    |
+------------------------+--------+---------+-------+--------------------+

但是要注意的是:正如Jared在评论中提到的,在一个非常大的存储库上做这件事将花费数小时。但考虑到它必须处理如此多的Git数据,不确定是否可以改进。

这给出了关于作者的一些统计信息,可以根据需要修改。

使用呆呆的:

git log --author="_Your_Name_Here_" --pretty=tformat: --numstat \
| gawk '{ add += $1; subs += $2; loc += $1 - $2 } END { printf "added lines: %s removed lines: %s total lines: %s\n", add, subs, loc }' -

在Mac OSX上使用Awk:

git log --author="_Your_Name_Here_" --pretty=tformat: --numstat | awk '{ add += $1; subs += $2; loc += $1 - $2 } END { printf "added lines: %s, removed lines: %s, total lines: %s\n", add, subs, loc }' -

使用count-lines git-alias:

简单地创建计数行别名(每个系统一次),像这样:

git config --global alias.count-lines "! git log --author=\"\$1\" --pretty=tformat: --numstat | awk '{ add += \$1; subs += \$2; loc += \$1 - \$2 } END { printf \"added lines: %s, removed lines: %s, total lines: %s\n\", add, subs, loc }' #"

以后再用,比如:

git count-lines email@example.com

对于Windows,将Git-Bash添加到PATH(环境变量)后生效。 对于Linux,可能用gawk替换awk部分。 对于MacOS,无需任何更改即可正常工作。

使用现有脚本(更新2017)

在github上有一个新包,看起来很光滑,并使用bash作为依赖项(在linux上测试)。它更适合直接使用,而不是脚本。

它是git-quick-stats (github链接)。

复制git-quick-stats到一个文件夹,并将该文件夹添加到path。

mkdir ~/source
cd ~/source
git clone git@github.com:arzzen/git-quick-stats.git
mkdir ~/bin
ln -s ~/source/git-quick-stats/git-quick-stats ~/bin/git-quick-stats
chmod +x ~/bin/git-quick-stats
export PATH=${PATH}:~/bin

用法:

git-quick-stats

下面是一个简短的一行代码,用于生成所有作者的统计信息。它比Dan在https://stackoverflow.com/a/20414465/1102119上的解决方案快得多(我的解决方案的时间复杂度是O(N),而不是O(NM),其中N是提交的数量,M是作者的数量)。

git log --no-merges --pretty=format:%an --numstat | awk '/./ && !author { author = $0; next } author { ins[author] += $1; del[author] += $2 } /^$/ { author = ""; next } END { for (a in ins) { printf "%10d %10d %10d %s\n", ins[a] - del[a], ins[a], del[a], a } }' | sort -rn

我对上面的一个简短的回答作了修改,但这不足以满足我的需要。我需要能够对提交的行和最终代码中的行进行分类。我还想按文件进行细分。这段代码不递归,它只返回单个目录的结果,但如果有人想进一步了解,这是一个很好的开始。复制并粘贴到文件中并使其可执行或使用Perl运行。

#!/usr/bin/perl

use strict;
use warnings;
use Data::Dumper;

my $dir = shift;

die "Please provide a directory name to check\n"
    unless $dir;

chdir $dir
    or die "Failed to enter the specified directory '$dir': $!\n";

if ( ! open(GIT_LS,'-|','git ls-files') ) {
    die "Failed to process 'git ls-files': $!\n";
}
my %stats;
while (my $file = <GIT_LS>) {
    chomp $file;
    if ( ! open(GIT_LOG,'-|',"git log --numstat $file") ) {
        die "Failed to process 'git log --numstat $file': $!\n";
    }
    my $author;
    while (my $log_line = <GIT_LOG>) {
        if ( $log_line =~ m{^Author:\s*([^<]*?)\s*<([^>]*)>} ) {
            $author = lc($1);
        }
        elsif ( $log_line =~ m{^(\d+)\s+(\d+)\s+(.*)} ) {
            my $added = $1;
            my $removed = $2;
            my $file = $3;
            $stats{total}{by_author}{$author}{added}        += $added;
            $stats{total}{by_author}{$author}{removed}      += $removed;
            $stats{total}{by_author}{total}{added}          += $added;
            $stats{total}{by_author}{total}{removed}        += $removed;

            $stats{total}{by_file}{$file}{$author}{added}   += $added;
            $stats{total}{by_file}{$file}{$author}{removed} += $removed;
            $stats{total}{by_file}{$file}{total}{added}     += $added;
            $stats{total}{by_file}{$file}{total}{removed}   += $removed;
        }
    }
    close GIT_LOG;

    if ( ! open(GIT_BLAME,'-|',"git blame -w $file") ) {
        die "Failed to process 'git blame -w $file': $!\n";
    }
    while (my $log_line = <GIT_BLAME>) {
        if ( $log_line =~ m{\((.*?)\s+\d{4}} ) {
            my $author = $1;
            $stats{final}{by_author}{$author}     ++;
            $stats{final}{by_file}{$file}{$author}++;

            $stats{final}{by_author}{total}       ++;
            $stats{final}{by_file}{$file}{total}  ++;
            $stats{final}{by_file}{$file}{total}  ++;
        }
    }
    close GIT_BLAME;
}
close GIT_LS;

print "Total lines committed by author by file\n";
printf "%25s %25s %8s %8s %9s\n",'file','author','added','removed','pct add';
foreach my $file (sort keys %{$stats{total}{by_file}}) {
    printf "%25s %4.0f%%\n",$file
            ,100*$stats{total}{by_file}{$file}{total}{added}/$stats{total}{by_author}{total}{added};
    foreach my $author (sort keys %{$stats{total}{by_file}{$file}}) {
        next if $author eq 'total';
        if ( $stats{total}{by_file}{$file}{total}{added} ) {
            printf "%25s %25s %8d %8d %8.0f%%\n",'', $author,@{$stats{total}{by_file}{$file}{$author}}{qw{added removed}}
            ,100*$stats{total}{by_file}{$file}{$author}{added}/$stats{total}{by_file}{$file}{total}{added};
        } else {
            printf "%25s %25s %8d %8d\n",'', $author,@{$stats{total}{by_file}{$file}{$author}}{qw{added removed}} ;
        }
    }
}
print "\n";

print "Total lines in the final project by author by file\n";
printf "%25s %25s %8s %9s %9s\n",'file','author','final','percent', '% of all';
foreach my $file (sort keys %{$stats{final}{by_file}}) {
    printf "%25s %4.0f%%\n",$file
            ,100*$stats{final}{by_file}{$file}{total}/$stats{final}{by_author}{total};
    foreach my $author (sort keys %{$stats{final}{by_file}{$file}}) {
        next if $author eq 'total';
        printf "%25s %25s %8d %8.0f%% %8.0f%%\n",'', $author,$stats{final}{by_file}{$file}{$author}
            ,100*$stats{final}{by_file}{$file}{$author}/$stats{final}{by_file}{$file}{total}
            ,100*$stats{final}{by_file}{$file}{$author}/$stats{final}{by_author}{total}
        ;
    }
}
print "\n";


print "Total lines committed by author\n";
printf "%25s %8s %8s %9s\n",'author','added','removed','pct add';
foreach my $author (sort keys %{$stats{total}{by_author}}) {
    next if $author eq 'total';
    printf "%25s %8d %8d %8.0f%%\n",$author,@{$stats{total}{by_author}{$author}}{qw{added removed}}
        ,100*$stats{total}{by_author}{$author}{added}/$stats{total}{by_author}{total}{added};
};
print "\n";


print "Total lines in the final project by author\n";
printf "%25s %8s %9s\n",'author','final','percent';
foreach my $author (sort keys %{$stats{final}{by_author}}) {
    printf "%25s %8d %8.0f%%\n",$author,$stats{final}{by_author}{$author}
        ,100*$stats{final}{by_author}{$author}/$stats{final}{by_author}{total};
}

AaronM使用shell一行程序得到的答案很好,但实际上,还有另一个错误,如果用户名和日期之间有不同数量的空格,空格会破坏用户名。损坏的用户名将给出多行用户计数,您必须自己将它们相加。

这个小小的改变解决了我的问题:

git ls-files -z | xargs -0n1 git blame -w --show-email | perl -n -e '/^.*?\((.*?)\s+[\d]{4}/; print $1,"\n"' | sort -f | uniq -c | sort -n

注意\s后面的+,它将占用从名称到日期的所有空白。

实际上,添加这个答案既是为了帮助别人,也是为了我自己的记忆,因为这至少是我第二次谷歌这个主题:)

增加了——show-email to git blame -w来聚合email,因为有些人在不同的计算机上使用不同的Name格式,有时两个同名的人在同一个git中工作。