mergetool: Replace use of "echo -n" with printf(1) to be more portable

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

diff --git a/git-mergetool.sh b/git-mergetool.sh
index 7942fd0b6490760b09248b961b38adb89ede1adb..340182335095dcf3a5201dfffcd3756498950352 100755 (executable)
--- a/git-mergetool.sh
+++ b/git-mergetool.sh
@@ -44,18 +44,16 @@ function describe_file () {
     branch="$2"
     file="$3"
 
-    echo -n "    "
+    printf "    "
     if test -z "$mode"; then
-       echo -n "'$path' was deleted"
+       printf "'%s' was deleted" "$path"
     elif is_symlink "$mode" ; then
-       echo -n "'$path' is a symlink containing '"
-       cat "$file"
-       echo -n "'"
+       printf "'%s' is a symlink containing '%s'" "$path" "$file"
     else
        if base_present; then
-           echo -n "'$path' was created"
+           printf "'%s' was created" "$path"
        else
-           echo -n "'$path' was modified"
+           printf "'%s' was modified" "$path"
        fi
     fi
     echo " in the $branch branch"
@@ -64,7 +62,7 @@ function describe_file () {
 
 resolve_symlink_merge () {
     while /bin/true; do
-       echo -n "Use (r)emote or (l)ocal, or (a)bort? "
+       printf "Use (r)emote or (l)ocal, or (a)bort? "
        read ans
        case "$ans" in
            [lL]*)
@@ -88,7 +86,7 @@ resolve_symlink_merge () {
 
 resolve_deleted_merge () {
     while /bin/true; do
-       echo -n "Use (m)odified or (d)eleted file, or (a)bort? "
+       printf "Use (m)odified or (d)eleted file, or (a)bort? "
        read ans
        case "$ans" in
            [mM]*)
@@ -157,7 +155,7 @@ merge_file () {
     echo "Normal merge conflict for $path:"
     describe_file "$local_mode" "local" "$LOCAL"
     describe_file "$remote_mode" "remote" "$REMOTE"
-    echo -n "Hit return to start merge resolution tool ($merge_tool): "
+    printf "Hit return to start merge resolution tool (%s): " "$merge_tool"
     read ans
 
     case "$merge_tool" in
@@ -193,7 +191,7 @@ merge_file () {
            else
                while true; do
                    echo "$path seems unchanged."
-                   echo -n "Was the merge successful? [y/n] "
+                   printf "Was the merge successful? [y/n] "
                    read answer < /dev/tty
                    case "$answer" in
                        y*|Y*) status=0; break ;;
@@ -225,7 +223,7 @@ merge_file () {
            else
                while true; do
                    echo "$path seems unchanged."
-                   echo -n "Was the merge successful? [y/n] "
+                   printf "Was the merge successful? [y/n] "
                    read answer < /dev/tty
                    case "$answer" in
                        y*|Y*) status=0; break ;;
@@ -346,12 +344,12 @@ if test $# -eq 0 ; then
        echo Merging the files: $files
        git ls-files -u | sed -e 's/^[^ ]*      //' | sort -u | while read i
        do
-               echo ""
+               printf "\n"
                merge_file "$i" < /dev/tty > /dev/tty
        done
 else
        while test $# -gt 0; do
-               echo ""
+               printf "\n"
                merge_file "$1"
                shift
        done