git-remote-ext
[gitweb.git] / git-am.sh
index 9df951a597d6b9ec5f7f390c35a60adb942a3fdc..e7f008c7baae2ff484e16882e199b6b9d75195aa 100755 (executable)
--- a/git-am.sh
+++ b/git-am.sh
@@ -15,6 +15,8 @@ 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
+keep-cr         pass --keep-cr flag to git-mailsplit for mbox format
+no-keep-cr      do not pass --keep-cr flag to git-mailsplit independent of am.keepcr
 c,scissors      strip everything before a scissors line
 whitespace=     pass it through git-apply
 ignore-space-change pass it through git-apply
@@ -50,6 +52,16 @@ else
        HAS_HEAD=
 fi
 
+cmdline="git am"
+if test '' != "$interactive"
+then
+       cmdline="$cmdline -i"
+fi
+if test '' != "$threeway"
+then
+       cmdline="$cmdline -3"
+fi
+
 sq () {
        git rev-parse --sq-quote "$@"
 }
@@ -64,15 +76,6 @@ stop_here_user_resolve () {
            printf '%s\n' "$resolvemsg"
            stop_here $1
     fi
-    cmdline="git am"
-    if test '' != "$interactive"
-    then
-        cmdline="$cmdline -i"
-    fi
-    if test '' != "$threeway"
-    then
-        cmdline="$cmdline -3"
-    fi
     echo "When you have resolved this problem run \"$cmdline --resolved\"."
     echo "If you would prefer to skip this patch, instead run \"$cmdline --skip\"."
     echo "To restore the original branch and stop patching run \"$cmdline --abort\"."
@@ -217,12 +220,12 @@ check_patch_format () {
 split_patches () {
        case "$patch_format" in
        mbox)
-               case "$rebasing" in
-               '')
-                       keep_cr= ;;
-               ?*)
-                       keep_cr=--keep-cr ;;
-               esac
+               if test -n "$rebasing" || test t = "$keepcr"
+               then
+                   keep_cr=--keep-cr
+               else
+                   keep_cr=
+               fi
                git mailsplit -d"$prec" -o"$dotest" -b $keep_cr -- "$@" > "$dotest/last" ||
                clean_abort
                ;;
@@ -291,13 +294,18 @@ split_patches () {
 
 prec=4
 dotest="$GIT_DIR/rebase-apply"
-sign= utf8=t keep= skip= interactive= resolved= rebasing= abort=
+sign= utf8=t keep= keepcr= skip= interactive= resolved= rebasing= abort=
 resolvemsg= resume= scissors= no_inbody_headers=
 git_apply_opt=
 committer_date_is_author_date=
 ignore_date=
 allow_rerere_autoupdate=
 
+if test "$(git config --bool --get am.keepcr)" = true
+then
+    keepcr=t
+fi
+
 while test $# != 0
 do
        case "$1" in
@@ -348,6 +356,10 @@ do
                allow_rerere_autoupdate="$1" ;;
        -q|--quiet)
                GIT_QUIET=t ;;
+       --keep-cr)
+               keepcr=t ;;
+       --no-keep-cr)
+               keepcr=f ;;
        --)
                shift; break ;;
        *)
@@ -453,6 +465,7 @@ else
        echo "$sign" >"$dotest/sign"
        echo "$utf8" >"$dotest/utf8"
        echo "$keep" >"$dotest/keep"
+       echo "$keepcr" >"$dotest/keepcr"
        echo "$scissors" >"$dotest/scissors"
        echo "$no_inbody_headers" >"$dotest/no_inbody_headers"
        echo "$GIT_QUIET" >"$dotest/quiet"
@@ -496,6 +509,12 @@ if test "$(cat "$dotest/keep")" = t
 then
        keep=-k
 fi
+case "$(cat "$dotest/keepcr")" in
+t)
+       keepcr=--keep-cr ;;
+f)
+       keepcr=--no-keep-cr ;;
+esac
 case "$(cat "$dotest/scissors")" in
 t)
        scissors=--scissors ;;
@@ -573,8 +592,11 @@ do
 
                test -s "$dotest/patch" || {
                        echo "Patch is empty.  Was it split wrong?"
+                       echo "If you would prefer to skip this patch, instead run \"$cmdline --skip\"."
+                       echo "To restore the original branch and stop patching run \"$cmdline --abort\"."
                        stop_here $this
                }
+               rm -f "$dotest/original-commit" "$dotest/author-script"
                if test -f "$dotest/rebasing" &&
                        commit=$(sed -e 's/^From \([0-9a-f]*\) .*/\1/' \
                                -e q "$dotest/$msgnum") &&
@@ -582,6 +604,8 @@ do
                then
                        git cat-file commit "$commit" |
                        sed -e '1,/^$/d' >"$dotest/msg-clean"
+                       echo "$commit" > "$dotest/original-commit"
+                       get_author_ident_from_commit "$commit" > "$dotest/author-script"
                else
                        {
                                sed -n '/^Subject/ s/Subject: //p' "$dotest/info"
@@ -593,9 +617,14 @@ do
                ;;
        esac
 
-       GIT_AUTHOR_NAME="$(sed -n '/^Author/ s/Author: //p' "$dotest/info")"
-       GIT_AUTHOR_EMAIL="$(sed -n '/^Email/ s/Email: //p' "$dotest/info")"
-       GIT_AUTHOR_DATE="$(sed -n '/^Date/ s/Date: //p' "$dotest/info")"
+       if test -f "$dotest/author-script"
+       then
+               eval $(cat "$dotest/author-script")
+       else
+               GIT_AUTHOR_NAME="$(sed -n '/^Author/ s/Author: //p' "$dotest/info")"
+               GIT_AUTHOR_EMAIL="$(sed -n '/^Email/ s/Email: //p' "$dotest/info")"
+               GIT_AUTHOR_DATE="$(sed -n '/^Date/ s/Date: //p' "$dotest/info")"
+       fi
 
        if test -z "$GIT_AUTHOR_EMAIL"
        then
@@ -670,7 +699,13 @@ do
        else
            action=yes
        fi
-       FIRSTLINE=$(sed 1q "$dotest/final-commit")
+
+       if test -f "$dotest/final-commit"
+       then
+               FIRSTLINE=$(sed 1q "$dotest/final-commit")
+       else
+               FIRSTLINE=""
+       fi
 
        if test $action = skip
        then
@@ -706,6 +741,8 @@ do
                resolved=
                git diff-index --quiet --cached HEAD -- && {
                        echo "No changes - did you forget to use 'git add'?"
+                       echo "If there is nothing left to stage, chances are that something else"
+                       echo "already introduced the same changes; you might want to skip this patch."
                        stop_here_user_resolve $this
                }
                unmerged=$(git ls-files -u)
@@ -720,7 +757,7 @@ do
                ;;
        esac
 
-       if test $apply_status = 1 && test "$threeway" = t
+       if test $apply_status != 0 && test "$threeway" = t
        then
                if (fall_back_3way)
                then
@@ -765,6 +802,10 @@ do
        git update-ref -m "$GIT_REFLOG_ACTION: $FIRSTLINE" HEAD $commit $parent ||
        stop_here $this
 
+       if test -f "$dotest/original-commit"; then
+               echo "$(cat "$dotest/original-commit") $commit" >> "$dotest/rewritten"
+       fi
+
        if test -x "$GIT_DIR"/hooks/post-applypatch
        then
                "$GIT_DIR"/hooks/post-applypatch
@@ -773,5 +814,12 @@ do
        go_next
 done
 
+if test -s "$dotest"/rewritten; then
+    git notes copy --for-rewrite=rebase < "$dotest"/rewritten
+    if test -x "$GIT_DIR"/hooks/post-rewrite; then
+       "$GIT_DIR"/hooks/post-rewrite rebase < "$dotest"/rewritten
+    fi
+fi
+
 rm -fr "$dotest"
 git gc --auto