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* Incorrect behavior from git checkout --patch
@ 2019-08-10 20:12 Dave Kaminski
  2019-08-11  9:54 ` Phillip Wood
  0 siblings, 1 reply; 3+ messages in thread
From: Dave Kaminski @ 2019-08-10 20:12 UTC (permalink / raw)
  To: git

I am observing git checkout --patch making changes to the wrong lines of a file.

This is with a clean install of git version 2.20.1 on a debian docker
container (image tag 10.0 which is also "latest" as of this writing).

With a diff that looks like the following:

diff --git a/file.txt b/file.txt
index 868aa22..ea4d786 100644
--- a/file.txt
+++ b/file.txt
@@ -1,35 +1,51 @@
 block_one {
 line 1
+line 1.5
 line 2
+line 2.5
 line 3
 2 4 6 8
 line 4
+line 4.5
 line 5
+line 5.5
 line 6
 2 4 6 8
 line 7
+line 7.5
 line 8
+line 8.5
 line 9
 2 4 6 8
 line 10
+line 10.5
 line 11
+line 11.5
 line 12
 }

 block_two {
 line 1
+line 1.5
 line 2
+line 2.5
 line 3
-2 5 6 9
+2 4 6 8
 line 4
+line 4.5
 line 5
+line 5.5
 line 6
-2 5 6 9
+2 4 6 8
 line 7
+line 7.5
 line 8
+line 8.5
 line 9
-2 5 6 9
+2 4 6 8
 line 10
+line 10.5
 line 11
+line 11.5
 line 12
 }

doing a `git checkout --patch -- ./file.txt`, splitting the diff into
hunks, and discarding all of the hunks that begin with numbers, e.g.

@@ -22,3 +32,3 @@
 line 3
-2 5 6 9
+2 4 6 8
 line 4

the expected state of the file in the working directory is this:

diff --git a/file.txt b/file.txt
index 868aa22..9ab67a1 100644
--- a/file.txt
+++ b/file.txt
@@ -1,35 +1,51 @@
 block_one {
 line 1
+line 1.5
 line 2
+line 2.5
 line 3
 2 4 6 8
 line 4
+line 4.5
 line 5
+line 5.5
 line 6
 2 4 6 8
 line 7
+line 7.5
 line 8
+line 8.5
 line 9
 2 4 6 8
 line 10
+line 10.5
 line 11
+line 11.5
 line 12
 }

 block_two {
 line 1
+line 1.5
 line 2
+line 2.5
 line 3
 2 5 6 9
 line 4
+line 4.5
 line 5
+line 5.5
 line 6
 2 5 6 9
 line 7
+line 7.5
 line 8
+line 8.5
 line 9
 2 5 6 9
 line 10
+line 10.5
 line 11
+line 11.5
 line 12
 }

but instead the actual state of the file is this:

diff --git a/file.txt b/file.txt
index 868aa22..76fe65d 100644
--- a/file.txt
+++ b/file.txt
@@ -1,35 +1,51 @@
 block_one {
 line 1
+line 1.5
 line 2
+line 2.5
 line 3
 2 4 6 8
 line 4
+line 4.5
 line 5
+line 5.5
 line 6
 2 4 6 8
 line 7
+line 7.5
 line 8
+line 8.5
 line 9
-2 4 6 8
+2 5 6 9
 line 10
+line 10.5
 line 11
+line 11.5
 line 12
 }

 block_two {
 line 1
+line 1.5
 line 2
+line 2.5
 line 3
 2 5 6 9
 line 4
+line 4.5
 line 5
+line 5.5
 line 6
 2 5 6 9
 line 7
+line 7.5
 line 8
+line 8.5
 line 9
-2 5 6 9
+2 4 6 8
 line 10
+line 10.5
 line 11
+line 11.5
 line 12
 }

See the changes between "line 9" and "line 10" in both blocks that are
not correct.

^ permalink raw reply related	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2019-08-11 13:47 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2019-08-10 20:12 Incorrect behavior from git checkout --patch Dave Kaminski
2019-08-11  9:54 ` Phillip Wood
2019-08-11 13:47   ` Phillip Wood

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