[TopGit PATCH] tg-create.sh: Support for multiple {to,cc,bcc} options

[Bert Wesarg <bert.wesarg@googlemail.com>]

Git config supports multiple values for the same config key, so support it
for these TopGit config options, too.

Signed-off-by: Bert Wesarg <bert.wesarg@googlemail.com>

---
 tg-create.sh |   17 ++++++++++++++---
 1 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/tg-create.sh b/tg-create.sh
index 6cce7ed..d47959b 100644
--- a/tg-create.sh
+++ b/tg-create.sh
@@ -100,13 +100,24 @@ git checkout -b "$name"
 echo "$deps" | sed 's/ /\n/g' >"$root_dir/.topdeps"
 git add "$root_dir/.topdeps"
 
+# Print each config value for a key ($1, without "topgit." prefix)
+# with the given prefix ($2)
+get_multi_config()
+{
+	# escape any / in prefix for sed
+	prefix="$(echo "$2" | sed -e 's/\//\\\\\//g')"
+
+	git config --get-all topgit.$1 2>/dev/null |
+		sed -e "s/^/$prefix /g"
+}
+
 author="$(git var GIT_AUTHOR_IDENT)"
 author_addr="${author%> *}>"
 {
 	echo "From: $author_addr"
-	! header="$(git config topgit.to)" || echo "To: $header"
-	! header="$(git config topgit.cc)" || echo "Cc: $header"
-	! header="$(git config topgit.bcc)" || echo "Bcc: $header"
+	get_multi_config to  "To:"
+	get_multi_config cc  "Cc:"
+	get_multi_config bcc "Bcc:"
 	! subject_prefix="$(git config topgit.subjectprefix)" || subject_prefix="$subject_prefix "
 	echo "Subject: [${subject_prefix}PATCH] $name"
 	echo
-- 
tg: (e311d15..) t/support-for-multiple-to-cc-bcc-options (depends on: master)