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[PATCH v4 3/3] rebase: pass --[no-]signoff option to git am




This makes it easy to sign off a whole patchset before submission.

Signed-off-by: Giuseppe Bilotta <giuseppe.bilotta@xxxxxxxxx>
---
 Documentation/git-rebase.txt |  5 +++++
 git-rebase.sh                |  3 ++-
 t/t3428-rebase-signoff.sh    | 46 ++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 53 insertions(+), 1 deletion(-)
 create mode 100755 t/t3428-rebase-signoff.sh

diff --git a/Documentation/git-rebase.txt b/Documentation/git-rebase.txt
index 67d48e6883..53f4e14444 100644
--- a/Documentation/git-rebase.txt
+++ b/Documentation/git-rebase.txt
@@ -370,6 +370,11 @@ default is `--no-fork-point`, otherwise the default is `--fork-point`.
 	of the rebased commits (see linkgit:git-am[1]).
 	Incompatible with the --interactive option.
 
+--signoff::
+	This flag is passed to 'git am' to sign off all the rebased
+	commits (see linkgit:git-am[1]). Incompatible with the
+	--interactive option.
+
 -i::
 --interactive::
 	Make a list of the commits which are about to be rebased.  Let the
diff --git a/git-rebase.sh b/git-rebase.sh
index 48d7c5ded4..db1deed846 100755
--- a/git-rebase.sh
+++ b/git-rebase.sh
@@ -34,6 +34,7 @@ root!              rebase all reachable commits up to the root(s)
 autosquash         move commits that begin with squash!/fixup! under -i
 committer-date-is-author-date! passed to 'git am'
 ignore-date!       passed to 'git am'
+signoff            passed to 'git am'
 whitespace=!       passed to 'git apply'
 ignore-whitespace! passed to 'git apply'
 C=!                passed to 'git apply'
@@ -321,7 +322,7 @@ do
 	--ignore-whitespace)
 		git_am_opt="$git_am_opt $1"
 		;;
-	--committer-date-is-author-date|--ignore-date)
+	--committer-date-is-author-date|--ignore-date|--signoff|--no-signoff)
 		git_am_opt="$git_am_opt $1"
 		force_rebase=t
 		;;
diff --git a/t/t3428-rebase-signoff.sh b/t/t3428-rebase-signoff.sh
new file mode 100755
index 0000000000..2afb564701
--- /dev/null
+++ b/t/t3428-rebase-signoff.sh
@@ -0,0 +1,46 @@
+#!/bin/sh
+
+test_description='git rebase --signoff
+
+This test runs git rebase --signoff and make sure that it works.
+'
+
+. ./test-lib.sh
+
+# A simple file to commit
+cat >file <<EOF
+a
+EOF
+
+# Expected commit message after rebase --signoff
+cat >expected-signed <<EOF
+first
+
+Signed-off-by: $(git var GIT_COMMITTER_IDENT | sed -e "s/>.*/>/")
+EOF
+
+# Expected commit message after rebase without --signoff (or with --no-signoff)
+cat >expected-unsigned <<EOF
+first
+EOF
+
+
+# We configure an alias to do the rebase --signoff so that
+# on the next subtest we can show that --no-signoff overrides the alias
+test_expect_success 'rebase --signoff adds a sign-off line' '
+	git commit --allow-empty -m "Initial empty commit" &&
+	git add file && git commit -m first &&
+	git config alias.rbs "rebase --signoff" &&
+	git rbs HEAD^ &&
+	git cat-file commit HEAD | sed -e "1,/^\$/d" > actual &&
+	test_cmp expected-signed actual
+'
+
+test_expect_success 'rebase --no-signoff does not add a sign-off line' '
+	git commit --amend -m "first" &&
+	git rbs --no-signoff HEAD^ &&
+	git cat-file commit HEAD | sed -e "1,/^\$/d" > actual &&
+	test_cmp expected-unsigned actual
+'
+
+test_done
-- 
2.12.2.820.g78c033c3a1.dirty