Subject: Re: What's cooking in git.git (Aug 2020, #02; Mon, 10)

From: Sergey Organov <[email-masked]>
Date: Tue, 11 Aug 2020 23:17:05 +0300

Sergey Organov <[email-masked]> writes:

> Junio C Hamano <[email-masked]> writes:
>
>> Sergey Organov <[email-masked]> writes:
>>
>>> Junio C Hamano <[email-masked]> writes:
>>>
>>> [...]
>>>
>>>> * jk/log-fp-implies-m (2020-07-29) 7 commits
>>>>   (merged to 'next' on 2020-08-03 at 39fefa6b82)
>>>>  + doc/git-log: clarify handling of merge commit diffs
>>>>  + doc/git-log: move "-t" into diff-options list
>>>>  + doc/git-log: drop "-r" diff option
>>>>  + doc/git-log: move "Diff Formatting" from rev-list-options
>>>>  + log: enable "-m" automatically with "--first-parent"
>>>>  + revision: add "--no-diff-merges" option to counteract "-m"
>>>>  + log: drop "--cc implies -m" logic
>>>>
>>>>  Originally merged to 'next' on 2020-08-01
>>>>
>>>>  "git log --first-parent -p" showed patches only for single-parent
>>>>  commits on the first-parent chain; the "--first-parent" option has
>>>>  been made to imply "-m".  Use "--no-diff-merges" to restore the
>>>>  previous behaviour to omit patches for merge commits.
>>>>
>>>>  On hold a bit.
>>>>  cf. <[email-masked]>
>>>
>>> I believe I've submitted resolution for that.
>>>
>>> <[email-masked]>
>>>
>>> Do you expect anything from me to push all this further?
>>
>> I was waiting for a reroll of the "resolution" with just one extra
>> test I mentioned in <[email-masked]> in the
>> thread.  With that everything would be good to go, I would think.

Here is the patch you've asked for, separately, as I honestly believe it
does not belong to the series in question themselves. This is on top of
the series.

-- >8 --
Subject: [PATCH] t/t4013: add permutation test for --diff-merges vs --first-parent

Signed-off-by: Sergey Organov <[email-masked]>
---
 t/t4013-diff-various.sh                       |  1 +
 ...--first-parent_--diff-merges=off_-p_master | 78 +++++++++++++++++++
 2 files changed, 79 insertions(+)
 create mode 100644 t/t4013/diff.log_--first-parent_--diff-merges=off_-p_master

diff --git a/t/t4013-diff-various.sh b/t/t4013-diff-various.sh
index 86fb11cecc61..7f7f1058cb86 100755
--- a/t/t4013-diff-various.sh
+++ b/t/t4013-diff-various.sh
@@ -299,6 +299,7 @@ log --root -c --patch-with-stat --summary master
 log --root --cc --patch-with-stat --summary master
 log --no-diff-merges -p --first-parent master
 log --diff-merges=off -p --first-parent master
+log --first-parent --diff-merges=off -p master
 log -p --first-parent master
 log -m -p --first-parent master
 log -m -p master
diff --git a/t/t4013/diff.log_--first-parent_--diff-merges=off_-p_master b/t/t4013/diff.log_--first-parent_--diff-merges=off_-p_master
new file mode 100644
index 000000000000..ad2e6d3be22c
--- /dev/null
+++ b/t/t4013/diff.log_--first-parent_--diff-merges=off_-p_master
@@ -0,0 +1,78 @@
+$ git log --first-parent --diff-merges=off -p master
+commit 80e25ffa65bcdbe82ef654b4d06dbbde7945c37f
+Merge: 9a6d494 c7a2ab9
+Author: A U Thor <[email-masked]>
+Date:   Mon Jun 26 00:04:00 2006 +0000
+
+    Merge branch 'side' into master
+
+commit 9a6d4949b6b76956d9d5e26f2791ec2ceff5fdc0
+Author: A U Thor <[email-masked]>
+Date:   Mon Jun 26 00:02:00 2006 +0000
+
+    Third
+
+diff --git a/dir/sub b/dir/sub
+index 8422d40..cead32e 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -2,3 +2,5 @@ A
+ B
+ C
+ D
++E
++F
+diff --git a/file1 b/file1
+new file mode 100644
+index 0000000..b1e6722
+--- /dev/null
++++ b/file1
+@@ -0,0 +1,3 @@
++A
++B
++C
+
+commit 1bde4ae5f36c8d9abe3a0fce0c6aab3c4a12fe44
+Author: A U Thor <[email-masked]>
+Date:   Mon Jun 26 00:01:00 2006 +0000
+
+    Second
+    
+    This is the second commit.
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..8422d40 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++C
++D
+diff --git a/file0 b/file0
+index 01e79c3..b414108 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++4
++5
++6
+diff --git a/file2 b/file2
+deleted file mode 100644
+index 01e79c3..0000000
+--- a/file2
++++ /dev/null
+@@ -1,3 +0,0 @@
+-1
+-2
+-3
+
+commit 444ac553ac7612cc88969031b02b3767fb8a353a
+Author: A U Thor <[email-masked]>
+Date:   Mon Jun 26 00:00:00 2006 +0000
+
+    Initial
+$
-- 
2.20.1