Introduce usagef() that takes a printf-style format

diff --git a/git-am.sh b/git-am.sh
index f719f6e654fdb7ee92013c824af439b5f0f58f95..c132f50da5f3416e6177dd7010e6db3660bdb073 100755 (executable)
--- a/git-am.sh
+++ b/git-am.sh
@@ -15,7 +15,10 @@ q,quiet         be quiet
 s,signoff       add a Signed-off-by line to the commit message
 u,utf8          recode into utf8 (default)
 k,keep          pass -k flag to git-mailinfo
+c,scissors      strip everything before a scissors line
 whitespace=     pass it through git-apply
+ignore-space-change pass it through git-apply
+ignore-whitespace pass it through git-apply
 directory=      pass it through git-apply
 C=              pass it through git-apply
 p=              pass it through git-apply
@@ -202,7 +205,7 @@ check_patch_format () {
                        # and see if it looks like that they all begin with the
                        # header field names...
                        sed -n -e '/^$/q' -e '/^[       ]/d' -e p "$1" |
-                       egrep -v '^[A-Za-z]+(-[A-Za-z]+)*:' >/dev/null ||
+                       LC_ALL=C egrep -v '^[!-9;-~]+:' >/dev/null ||
                        patch_format=mbox
                fi
        } < "$1" || clean_abort
@@ -211,7 +214,13 @@ check_patch_format () {
 split_patches () {
        case "$patch_format" in
        mbox)
-               git mailsplit -d"$prec" -o"$dotest" -b -- "$@" > "$dotest/last" ||
+               case "$rebasing" in
+               '')
+                       keep_cr= ;;
+               ?*)
+                       keep_cr=--keep-cr ;;
+               esac
+               git mailsplit -d"$prec" -o"$dotest" -b $keep_cr -- "$@" > "$dotest/last" ||
                clean_abort
                ;;
        stgit-series)
@@ -280,7 +289,7 @@ split_patches () {
 prec=4
 dotest="$GIT_DIR/rebase-apply"
 sign= utf8=t keep= skip= interactive= resolved= rebasing= abort=
-resolvemsg= resume=
+resolvemsg= resume= scissors=
 git_apply_opt=
 committer_date_is_author_date=
 ignore_date=
@@ -302,6 +311,10 @@ do
                utf8= ;;
        -k|--keep)
                keep=t ;;
+       -c|--scissors)
+               scissors=t ;;
+       --no-scissors)
+               scissors=f ;;
        -r|--resolved)
                resolved=t ;;
        --skip)
@@ -309,7 +322,7 @@ do
        --abort)
                abort=t ;;
        --rebasing)
-               rebasing=t threeway=t keep=t ;;
+               rebasing=t threeway=t keep=t scissors=f ;;
        -d|--dotest)
                die "-d option is no longer supported.  Do not use."
                ;;
@@ -321,7 +334,7 @@ do
                git_apply_opt="$git_apply_opt $(sq "$1$2")"; shift ;;
        --patch-format)
                shift ; patch_format="$1" ;;
-       --reject)
+       --reject|--ignore-whitespace|--ignore-space-change)
                git_apply_opt="$git_apply_opt $1" ;;
        --committer-date-is-author-date)
                committer_date_is_author_date=t ;;
@@ -427,14 +440,14 @@ else
 
        split_patches "$@"
 
-       # -s, -u, -k, --whitespace, -3, -C, -q and -p flags are kept
-       # for the resuming session after a patch failure.
-       # -i can and must be given when resuming.
+       # -i can and must be given when resuming; everything
+       # else is kept
        echo " $git_apply_opt" >"$dotest/apply-opt"
        echo "$threeway" >"$dotest/threeway"
        echo "$sign" >"$dotest/sign"
        echo "$utf8" >"$dotest/utf8"
        echo "$keep" >"$dotest/keep"
+       echo "$scissors" >"$dotest/scissors"
        echo "$GIT_QUIET" >"$dotest/quiet"
        echo 1 >"$dotest/next"
        if test -n "$rebasing"
@@ -476,6 +489,12 @@ if test "$(cat "$dotest/keep")" = t
 then
        keep=-k
 fi
+case "$(cat "$dotest/scissors")" in
+t)
+       scissors=--scissors ;;
+f)
+       scissors=--no-scissors ;;
+esac
 if test "$(cat "$dotest/quiet")" = t
 then
        GIT_QUIET=t
@@ -530,7 +549,7 @@ do
        # by the user, or the user can tell us to do so by --resolved flag.
        case "$resume" in
        '')
-               git mailinfo $keep $utf8 "$dotest/msg" "$dotest/patch" \
+               git mailinfo $keep $scissors $utf8 "$dotest/msg" "$dotest/patch" \
                        <"$dotest/$msgnum" >"$dotest/info" ||
                        stop_here $this