[gnome-continuous-yocto/gnomeostree-3.28-rocko: 1715/8267] create-pull-request: set subject automatically for cover latter

[Emmanuele Bassi <ebassi src gnome org>]

commit 9ddb513a7ff3c2cb213f22db95321c490605c6c8
Author: Robert Yang <liezhi yang windriver com>
Date:   Mon Apr 18 19:16:03 2016 -0700

    create-pull-request: set subject automatically for cover latter
    
    Set cover letter's subject automatically as the patch's subject when
    there is only one patch.
    
    [YOCTO #9410]
    
    (From OE-Core rev: 162b80f8a4670befaf6ffd2c178671cf7370b767)
    
    Signed-off-by: Robert Yang <liezhi yang windriver com>
    Signed-off-by: Ross Burton <ross burton intel com>
    Signed-off-by: Richard Purdie <richard purdie linuxfoundation org>

 scripts/create-pull-request |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)
---
diff --git a/scripts/create-pull-request b/scripts/create-pull-request
index 9ea28a1..3f30cf1 100755
--- a/scripts/create-pull-request
+++ b/scripts/create-pull-request
@@ -261,7 +261,13 @@ if [ -n "$BODY" ]; then
        sed -i "/BLURB HERE/ d" "$CL"
 fi
 
-# If the user specified a subject, replace the SUBJECT token with it.
+# Set subject automatically if there is only one patch
+patch_cnt=`git log --pretty=oneline ${RELATIVE_TO}..${L_BRANCH} | wc -l`
+if [ -z "$SUBJECT" -a $patch_cnt -eq 1 ]; then
+    SUBJECT="`git log --format=%s ${RELATIVE_TO}..${L_BRANCH}`"
+fi
+
+# Replace the SUBJECT token with it.
 if [ -n "$SUBJECT" ]; then
        sed -i -e "s/\*\*\* SUBJECT HERE \*\*\*/$SUBJECT/" "$CL"
 fi