每次我想要获取补丁的子集时,我都被迫编写一个脚本来仅提取我想要的索引。
e.g。我有一个适用于子目录的补丁 'yay'和'foo'。
有没有办法创建新补丁或仅应用补丁的子集?即从现有补丁中创建一个新补丁,该补丁仅占用子目录'yay'下的所有索引。或者所有不在子目录'foo'
下的索引如果我有一个补丁(请原谅下面的伪补丁):
Index : foo/bar
yada
yada
- asdf
+ jkl
yada
yada
Index : foo/bah
blah
blah
- 28
+ 29
blah
blah
blah
Index : yay/team
go
huskies
- happy happy
+ joy joy
cougars
suck
如何仅提取或应用'yay'子目录,如:
Index : yay/team
go
huskies
- happy happy
+ joy joy
cougars
suck
我知道如果我编写一个解决方案,我将重新发明轮子......
答案 0 :(得分:3)
查看filterdiff
实用程序,它是patchutils的一部分。
例如,如果您有以下补丁:
$ cat example.patch
diff -Naur orig/a/bar new/a/bar
--- orig/a/bar 2009-12-02 12:41:38.353745751 -0800
+++ new/a/bar 2009-12-02 12:42:17.845745951 -0800
@@ -1,3 +1,3 @@
4
-5
+e
6
diff -Naur orig/a/foo new/a/foo
--- orig/a/foo 2009-12-02 12:41:32.845745768 -0800
+++ new/a/foo 2009-12-02 12:42:25.697995617 -0800
@@ -1,3 +1,3 @@
1
2
-3
+c
diff -Naur orig/b/baz new/b/baz
--- orig/b/baz 2009-12-02 12:41:42.993745756 -0800
+++ new/b/baz 2009-12-02 12:42:37.585745735 -0800
@@ -1,3 +1,3 @@
-7
+z
8
9
然后,您可以运行以下命令来仅提取a
目录中的内容,如下所示:
$ cat example.patch | filterdiff -i 'new/a/*'
--- orig/a/bar 2009-12-02 12:41:38.353745751 -0800
+++ new/a/bar 2009-12-02 12:42:17.845745951 -0800
@@ -1,3 +1,3 @@
4
-5
+e
6
--- orig/a/foo 2009-12-02 12:41:32.845745768 -0800
+++ new/a/foo 2009-12-02 12:42:25.697995617 -0800
@@ -1,3 +1,3 @@
1
2
-3
+c
答案 1 :(得分:1)
这是我快速而又肮脏的Perl解决方案。
perl -ne '@a = split /^Index :/m, join "", <>; END { for(@a) {print "Index :", $_ if (m, yay/team,)}}' < foo.patch
答案 2 :(得分:1)
为了回应评论中的sigjuice的请求,我发布了我的脚本解决方案。它不是100%防弹,我可能会使用filterdiff
代替。
base_usage_str=r'''
python %prog index_regex patch_file
description:
Extracts all indices from a patch-file matching 'index_regex'
e.g.
python %prog '^evc_lib' p.patch > evc_lib_p.patch
Will extract all indices which begin with evc_lib.
-or-
python %prog '^(?!evc_lib)' p.patch > not_evc_lib_p.patch
Will extract all indices which do *not* begin with evc_lib.
authors:
Ross Rogers, 2009.04.02
'''
import re,os,sys
from optparse import OptionParser
def main():
parser = OptionParser(usage=base_usage_str)
(options, args) = parser.parse_args(args=sys.argv[1:])
if len(args) != 2:
parser.print_help()
if len(args) == 0:
sys.exit(0)
else:
sys.exit(1)
(index_regex,patch_file) = args
sys.stderr.write('Extracting patches for indices found by regex:%s\n'%index_regex)
#print 'user_regex',index_regex
user_index_match_regex = re.compile(index_regex)
# Index: verification/ring_td_cte/tests/mmio_wr_td_target.e
# --- sw/cfg/foo.xml 2009-04-30 17:59:11 -07:00
# +++ sw/cfg/foo.xml 2009-05-11 09:26:58 -07:00
index_cre = re.compile(r'''(?:(?<=^)|(?<=\n))(--- (?:.*\n){2,}?(?![ @\+\-]))''')
patch_file = open(patch_file,'r')
all_patch_sets = index_cre.findall(patch_file.read())
patch_file.close()
for file_edit in all_patch_sets:
# extract index subset
index_path = re.compile('\+\+\+ (?P<index>[\w_\-/\.]+)').search(file_edit).group('index').strip()
if user_index_match_regex.search(index_path):
sys.stderr.write("Index regex matched index: "+index_path+"\n")
print file_edit,
if __name__ == '__main__':
main()