[PATCH 2/2] rebase -i: new option --name-rev

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If set, the second column of the rebase todo contains named revisions (obtained
with git name-rev) instead of short SHA1s.
---
 Documentation/git-rebase.txt  |   11 +++++++++++
 git-rebase--interactive.sh    |   11 ++++++++---
 git-rebase.sh                 |   10 ++++++++++
 t/t3404-rebase-interactive.sh |   11 +++++++++++
 4 files changed, 40 insertions(+), 3 deletions(-)

diff --git a/Documentation/git-rebase.txt b/Documentation/git-rebase.txt
index 504945c..e7ecd2c 100644
--- a/Documentation/git-rebase.txt
+++ b/Documentation/git-rebase.txt
@@ -365,6 +365,17 @@ If the '--autosquash' option is enabled by default using the
 configuration variable `rebase.autosquash`, this option can be
 used to override and disable this setting.
 
+--name-rev::
+--no-name-rev::
+	Instead of showing short SHA1 hashes in the todo list, show
+	human-readable revisions obtained with linkgit:git-name-rev[1].
++
+This option is only valid when the '--interactive' option is used.
++
+If the '--name-rev' option is enabled by default using the
+configuration variable `rebase.interactivenamerev`, this option can be
+used to override and disable this setting.
+
 --no-ff::
 	With --interactive, cherry-pick all rebased commits instead of
 	fast-forwarding over the unchanged ones.  This ensures that the
diff --git a/git-rebase--interactive.sh b/git-rebase--interactive.sh
index 8dcb8b0..5583dcb 100644
--- a/git-rebase--interactive.sh
+++ b/git-rebase--interactive.sh
@@ -780,10 +780,15 @@ git rev-list $merges_option --pretty=oneline --no-abbrev-commit \
 	sed -n "s/^>//p" |
 while read -r sha1 rest
 do
-	shortsha1=$(echo $sha1 | cut -c1-7)
+	if test t = "$name_rev"
+	then
+		rev="$(git name-rev $sha1 | cut -d\  -f2)"
+	else
+		rev=$(echo $sha1 | cut -c1-7)
+	fi
 	if test t != "$preserve_merges"
 	then
-		printf '%s\n' "pick $shortsha1 $rest" >> "$todo"
+		printf '%s\n' "pick $rev $rest" >> "$todo"
 	else
 		if test -z "$rebase_root"
 		then
@@ -801,7 +806,7 @@ do
 		if test f = "$preserve"
 		then
 			touch "$rewritten"/$sha1
-			printf '%s\n' "pick $shortsha1 $rest" >> "$todo"
+			printf '%s\n' "pick $rev $rest" >> "$todo"
 		fi
 	fi
 done
diff --git a/git-rebase.sh b/git-rebase.sh
index 69c1374..9330be3 100755
--- a/git-rebase.sh
+++ b/git-rebase.sh
@@ -43,6 +43,8 @@ s,strategy=!       use the given merge strategy
 no-ff!             cherry-pick all commits, even if unchanged
 m,merge!           use merging strategies to rebase
 i,interactive!     let the user edit the list of commits to rebase
+name-rev           show revisions by name in the list of commits
+no-name-rev        show revisions by short SHA1 in the list (default)
 f,force-rebase!    force rebase even if branch is up to date
 X,strategy-option=! pass the argument through to the merge strategy
 stat!              display a diffstat of what changed upstream
@@ -98,6 +100,8 @@ action=
 preserve_merges=
 autosquash=
 test "$(git config --bool rebase.autosquash)" = "true" && autosquash=t
+name_rev=
+test "$(git config --bool rebase.interactivenamerev)" = "true" && name_rev=t
 
 read_basic_state () {
 	head_name=$(cat "$state_dir"/head-name) &&
@@ -287,6 +291,12 @@ do
 	-f|--no-ff)
 		force_rebase=t
 		;;
+	--name-rev)
+		name_rev=t
+		;;
+	--no-name-rev)
+		name_rev=
+		;;
 	--rerere-autoupdate|--no-rerere-autoupdate)
 		allow_rerere_autoupdate="$1"
 		;;
diff --git a/t/t3404-rebase-interactive.sh b/t/t3404-rebase-interactive.sh
index b981572..299ce40 100755
--- a/t/t3404-rebase-interactive.sh
+++ b/t/t3404-rebase-interactive.sh
@@ -163,6 +163,17 @@ test_expect_success 'exchange two commits' '
 	test G = $(git cat-file commit HEAD | sed -ne \$p)
 '
 
+cat > expect-rebase-todo <<EOF
+pick branch1~1 H
+pick branch1 G
+EOF
+
+test_expect_success 'Symbolic revisions in --name-rev' '
+	exec > debug.log 2>&1 &&
+	FAKE_LINES="exec_cp_.git/rebase-merge/git-rebase-todo_rebase-todo 1 2" git rebase -i --name-rev HEAD~2 &&
+	test_cmp expect-rebase-todo rebase-todo
+'
+
 cat > expect << EOF
 diff --git a/file1 b/file1
 index f70f10e..fd79235 100644
-- 
1.7.7.3

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