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-rwxr-xr-xgit-am.sh40
1 files changed, 39 insertions, 1 deletions
diff --git a/git-am.sh b/git-am.sh
index da160de3c3..552b888703 100755
--- a/git-am.sh
+++ b/git-am.sh
@@ -142,7 +142,45 @@ check_patch_format () {
then
return 0
fi
- patch_format=mbox
+
+ # we default to mbox format if input is from stdin and for
+ # directories
+ if test $# = 0 || test "x$1" = "x-" || test -d "$1"
+ then
+ patch_format=mbox
+ return 0
+ fi
+
+ # otherwise, check the first few lines of the first patch to try
+ # to detect its format
+ {
+ read l1
+ read l2
+ read l3
+ case "$l1" in
+ "From "* | "From: "*)
+ patch_format=mbox
+ ;;
+ '# This series applies on GIT commit'*)
+ patch_format=stgit-series
+ ;;
+ "# HG changeset patch")
+ patch_format=hg
+ ;;
+ *)
+ # if the second line is empty and the third is
+ # a From, Author or Date entry, this is very
+ # likely an StGIT patch
+ case "$l2,$l3" in
+ ,"From: "* | ,"Author: "* | ,"Date: "*)
+ patch_format=stgit
+ ;;
+ *)
+ ;;
+ esac
+ ;;
+ esac
+ } < "$1"
}
split_patches () {