[ptxdist] [PATCH v2] git-ptx-patches: add --notes to git-format-patch if it's supported

["Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>]

While at it also document minimal git version needed for --no-signature.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
---
Changes since (implict) v1:
 - write --no-signature when --no-signature is meant instead of --notes

 scripts/git-ptx-patches | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/scripts/git-ptx-patches b/scripts/git-ptx-patches
index 37f5d91..619e0c93 100755
--- a/scripts/git-ptx-patches
+++ b/scripts/git-ptx-patches
@@ -110,10 +110,17 @@ case "$remove_old" in
 		;;
 esac
 
+# git-format-patch --no-signature is supported since git 1.7.2
 if git format-patch -h 2>&1 | grep -q signature; then
 	GIT_EXTRA_ARGS="--no-signature"
 fi
 
+# git-format-patch --notes is supported since git 1.7.6, but actually you want
+# git 1.8.1-rc0 to get the notes below the --- marker
+if man git-format-patch | grep -q -e --notes; then
+	GIT_EXTRA_ARGS="$GIT_EXTRA_ARGS --notes"
+fi
+
 cat .ptxdist/series.0 > .ptxdist/series
 git format-patch -N $GIT_EXTRA_ARGS ${tagopt} -o .ptxdist/patches/ ${range} | sed -e 's,^.ptxdist/patches/,,' > .ptxdist/series.auto
 cat .ptxdist/series.auto >> .ptxdist/series
-- 
1.8.2.rc2


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