git-diff - 如何 git-apply git word diff

Question

我需要编辑一个杂乱的提交提交，它只更改了几个后续行中的一个单词，保留其中一些更改并删除其他更改。
在 git diff --word-diff 中很容易看到这些变化，在那种格式中，我可以轻松地编辑大块头来做我想做的事情，但现在我有一个这样的文件

diff --git a/cldf/forms.csv b/cldf/forms.csv
index 46c12a4..0374ece 100644
--- a/cldf/forms.csv
+++ b/cldf/forms.csv
@@ -1783,8 +1783,8 @@ ID,Lect_ID,Concept_ID,Form_according_to_Source,Form,Local_Orthography,Segments,C
1782,adan1251-lawah,day,dilɛlɛ,dilɛlɛ,dilele,d i l ɛ l ɛ,Lit. 'all day'.,datasets_Adang_Lawahing_tsv
1783,adan1251-lawah,day,wɛd saha,wɛd_saha,wed saha,w ɛ d _ s a h a,midday' lit. 'hot sun',datasets_Adang_Lawahing_tsv
1784,adan1251-lawah,morning,lalami,lalami,lalami,l a l a m i,,datasets_Adang_Lawahing_tsv
1785,adan1251-lawah,yesterday,ʔu:mi,ʔuːmi,[-umi-]{+'umi+},ʔ uː m i,,datasets_Adang_Lawahing_tsv
1786,adan1251-lawah,day_before_yesterday,ʔotariŋ alumi,ʔotariŋ_alumi,[-otaring-]{+'otaring+} alumi,ʔ o t a r i ŋ _ a l u m i,,datasets_Adang_Lawahing_tsv
1787,adan1251-lawah,tomorrow,dilɛlɛ,dilɛlɛ,dilele,d i l ɛ l ɛ,,datasets_Adang_Lawahing_tsv
1788,adan1251-lawah,day_after_tomorrow,a:lu,aːlu,alu,aː l u,,datasets_Adang_Lawahing_tsv
1789,adan1251-lawah,twilight_dawn,lalami,lalami,lalami,l a l a m i,"(lit, 'early morning')",datasets_Adang_Lawahing_tsv

我想用它作为 git apply 的补丁.

然而， Vanilla git apply words.diff失败并返回 fatal: corrupt patch at line 6 – 普通的 diff 文件会在未受影响的行中以空格开头 – 我看不到任何可能使 git apply 的内容在其联机帮助页中接受 word-diff 文件。

怎么说服git apply将这种格式的文件作为补丁？或者如何轻松地将此文件转换为有效的补丁？

Answer 1

我找不到可行的解决方案，因此我编写了一个脚本，可将 word-diff 转换为可以应用的常规 diff:

#!/usr/bin/env perl
# convert-word-diff.pl -- rev. 2, this script is licensed under WTFPLv2

my (@minus, @plus);

sub flush_diff {
  print join("", map { "-$_" } @minus);
  print join("", map { "+$_" } @plus);
  @minus = (); @plus = ();
}

while (my $line = <>) {
  if ($line =~ /^(?:index |diff |\+\+\+ |\-\-\- |@@ )/) {
    flush_diff();
    print $line;
    next;
  }

  my $is_diff_line;

  if ($line =~ /\[\-.*\-\]/ || $line =~ /\{\+.*?\+\}/) {
    my $copy = $line;
    $copy =~ s/\[\-(.*?)\-\]\{\+.*?\+\}/\1/g;
    $copy =~ s/\[\-(.*?)\-\] ( )?/ \1 /g;
    $copy =~ s/\{\+.*?\+\} ?//g;
    push(@minus, $copy);

    $copy = $line;
    $copy =~ s/\[\-.*?\-\]//g;
    $copy =~ s/\{\+(.*?)\+\}/\1/g;
    push(@plus, $copy);
    $is_diff_line = 1;
  }

  unless ($is_diff_line) {
    flush_diff();
    print " $line" ;
  }
}

flush_diff();

用法:

cat word-diff.txt | perl convert-word-diff.pl | git apply

希望我没有搞砸任何事情，而且您使用的是 Linux/Mac 并且拥有 Perl。 :-)