rebase -i: Extract a function "commit_message"

...instead of repeating the same short but slightly obscure blob of
code in several places.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/git-rebase--interactive.sh b/git-rebase--interactive.sh
index d60e059838c3e50e4cdc9ef246d9a45b16c5c7ef..1499a67bba6bf9372d38acf890151bd802773953 100755 (executable)
--- a/git-rebase--interactive.sh
+++ b/git-rebase--interactive.sh
@@ -118,6 +118,11 @@ output () {
        esac
 }
 
+# Output the commit message for the specified commit.
+commit_message () {
+       git cat-file commit "$1" | sed "1,/^$/d"
+}
+
 run_pre_rebase_hook () {
        if test -z "$OK_TO_SKIP_PRE_REBASE" &&
           test -x "$GIT_DIR/hooks/pre-rebase"
@@ -178,7 +183,7 @@ make_patch () {
                ;;
        esac > "$DOTEST"/patch
        test -f "$MSG" ||
-               git cat-file commit "$1" | sed "1,/^$/d" > "$MSG"
+               commit_message "$1" > "$MSG"
        test -f "$AUTHOR_SCRIPT" ||
                get_author_ident_from_commit "$1" > "$AUTHOR_SCRIPT"
 }
@@ -316,7 +321,7 @@ pick_one_preserving_merges () {
                        # redo merge
                        author_script=$(get_author_ident_from_commit $sha1)
                        eval "$author_script"
-                       msg="$(git cat-file commit $sha1 | sed -e '1,/^$/d')"
+                       msg="$(commit_message $sha1)"
                        # No point in merging the first parent, that's HEAD
                        new_parents=${new_parents# $first_parent}
                        if ! GIT_AUTHOR_NAME="$GIT_AUTHOR_NAME" \
@@ -361,20 +366,20 @@ make_squash_message () {
                echo "# This is a combination of 2 commits."
                echo "# The first commit's message is:"
                echo
-               git cat-file commit HEAD | sed -e '1,/^$/d'
+               commit_message HEAD
        fi
        case $1 in
        squash)
                echo
                echo "# This is the $(nth_string $COUNT) commit message:"
                echo
-               git cat-file commit $2 | sed -e '1,/^$/d'
+               commit_message $2
                ;;
        fixup)
                echo
                echo "# The $(nth_string $COUNT) commit message will be skipped:"
                echo
-               git cat-file commit $2 | sed -e '1,/^$/d' -e 's/^/#     /'
+               commit_message $2 | sed -e 's/^/#       /'
                ;;
        esac
 }