Code

Merge branch 'gf/maint-sh-setup-nongit-ok' into maint-1.6.6
[git.git] / git-am.sh
index 58d4eb6d2dc2eaa99ae0c70a414813cd0ce43e43..4838cdb9ede8765b37ab663aa59fb1b011a30b4c 100755 (executable)
--- a/git-am.sh
+++ b/git-am.sh
@@ -15,10 +15,14 @@ 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
+patch-format=   format the patch(es) are in
 reject          pass it through git-apply
 resolvemsg=     override error message when patch failure occurs
 r,resolved      to be used after a patch failure
@@ -138,10 +142,154 @@ It does not apply to blobs recorded in its index."
     unset GITHEAD_$his_tree
 }
 
+clean_abort () {
+       test $# = 0 || echo >&2 "$@"
+       rm -fr "$dotest"
+       exit 1
+}
+
+patch_format=
+
+check_patch_format () {
+       # early return if patch_format was set from the command line
+       if test -n "$patch_format"
+       then
+               return 0
+       fi
+
+       # 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
+               if test -z "$patch_format" &&
+                       test -n "$l1" &&
+                       test -n "$l2" &&
+                       test -n "$l3"
+               then
+                       # This begins with three non-empty lines.  Is this a
+                       # piece of e-mail a-la RFC2822?  Grab all the headers,
+                       # discarding the indented remainder of folded lines,
+                       # and see if it looks like that they all begin with the
+                       # header field names...
+                       sed -n -e '/^$/q' -e '/^[       ]/d' -e p "$1" |
+                       sane_egrep -v '^[!-9;-~]+:' >/dev/null ||
+                       patch_format=mbox
+               fi
+       } < "$1" || clean_abort
+}
+
+split_patches () {
+       case "$patch_format" in
+       mbox)
+               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)
+               if test $# -ne 1
+               then
+                       clean_abort "Only one StGIT patch series can be applied at once"
+               fi
+               series_dir=`dirname "$1"`
+               series_file="$1"
+               shift
+               {
+                       set x
+                       while read filename
+                       do
+                               set "$@" "$series_dir/$filename"
+                       done
+                       # remove the safety x
+                       shift
+                       # remove the arg coming from the first-line comment
+                       shift
+               } < "$series_file" || clean_abort
+               # set the patch format appropriately
+               patch_format=stgit
+               # now handle the actual StGIT patches
+               split_patches "$@"
+               ;;
+       stgit)
+               this=0
+               for stgit in "$@"
+               do
+                       this=`expr "$this" + 1`
+                       msgnum=`printf "%0${prec}d" $this`
+                       # Perl version of StGIT parse_patch. The first nonemptyline
+                       # not starting with Author, From or Date is the
+                       # subject, and the body starts with the next nonempty
+                       # line not starting with Author, From or Date
+                       perl -ne 'BEGIN { $subject = 0 }
+                               if ($subject > 1) { print ; }
+                               elsif (/^\s+$/) { next ; }
+                               elsif (/^Author:/) { print s/Author/From/ ; }
+                               elsif (/^(From|Date)/) { print ; }
+                               elsif ($subject) {
+                                       $subject = 2 ;
+                                       print "\n" ;
+                                       print ;
+                               } else {
+                                       print "Subject: ", $_ ;
+                                       $subject = 1;
+                               }
+                       ' < "$stgit" > "$dotest/$msgnum" || clean_abort
+               done
+               echo "$this" > "$dotest/last"
+               this=
+               msgnum=
+               ;;
+       *)
+               if test -n "$parse_patch" ; then
+                       clean_abort "Patch format $patch_format is not supported."
+               else
+                       clean_abort "Patch format detection failed."
+               fi
+               ;;
+       esac
+}
+
 prec=4
 dotest="$GIT_DIR/rebase-apply"
 sign= utf8=t keep= skip= interactive= resolved= rebasing= abort=
-resolvemsg= resume=
+resolvemsg= resume= scissors= no_inbody_headers=
 git_apply_opt=
 committer_date_is_author_date=
 ignore_date=
@@ -163,6 +311,10 @@ do
                utf8= ;;
        -k|--keep)
                keep=t ;;
+       -c|--scissors)
+               scissors=t ;;
+       --no-scissors)
+               scissors=f ;;
        -r|--resolved)
                resolved=t ;;
        --skip)
@@ -170,7 +322,7 @@ do
        --abort)
                abort=t ;;
        --rebasing)
-               rebasing=t threeway=t keep=t ;;
+               rebasing=t threeway=t keep=t scissors=f no_inbody_headers=t ;;
        -d|--dotest)
                die "-d option is no longer supported.  Do not use."
                ;;
@@ -180,7 +332,9 @@ do
                git_apply_opt="$git_apply_opt $(sq "$1=$2")"; shift ;;
        -C|-p)
                git_apply_opt="$git_apply_opt $(sq "$1$2")"; shift ;;
-       --reject)
+       --patch-format)
+               shift ; patch_format="$1" ;;
+       --reject|--ignore-whitespace|--ignore-space-change)
                git_apply_opt="$git_apply_opt $1" ;;
        --committer-date-is-author-date)
                committer_date_is_author_date=t ;;
@@ -281,19 +435,20 @@ else
                done
                shift
        fi
-       git mailsplit -d"$prec" -o"$dotest" -b -- "$@" > "$dotest/last" ||  {
-               rm -fr "$dotest"
-               exit 1
-       }
 
-       # -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.
+       check_patch_format "$@"
+
+       split_patches "$@"
+
+       # -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 "$no_inbody_headers" >"$dotest/no_inbody_headers"
        echo "$GIT_QUIET" >"$dotest/quiet"
        echo 1 >"$dotest/next"
        if test -n "$rebasing"
@@ -335,6 +490,18 @@ 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/no_inbody_headers")" = t
+then
+       no_inbody_headers=--no-inbody-headers
+else
+       no_inbody_headers=
+fi
 if test "$(cat "$dotest/quiet")" = t
 then
        GIT_QUIET=t
@@ -389,12 +556,12 @@ 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 $no_inbody_headers $scissors $utf8 "$dotest/msg" "$dotest/patch" \
                        <"$dotest/$msgnum" >"$dotest/info" ||
                        stop_here $this
 
                # skip pine's internal folder data
-               grep '^Author: Mail System Internal Data$' \
+               sane_grep '^Author: Mail System Internal Data$' \
                        <"$dotest"/info >/dev/null &&
                        go_next && continue
 
@@ -410,11 +577,12 @@ do
                        git cat-file commit "$commit" |
                        sed -e '1,/^$/d' >"$dotest/msg-clean"
                else
-                       SUBJECT="$(sed -n '/^Subject/ s/Subject: //p' "$dotest/info")"
-                       case "$keep_subject" in -k)  SUBJECT="[PATCH] $SUBJECT" ;; esac
-
-                       (printf '%s\n\n' "$SUBJECT"; cat "$dotest/msg") |
-                               git stripspace > "$dotest/msg-clean"
+                       {
+                               sed -n '/^Subject/ s/Subject: //p' "$dotest/info"
+                               echo
+                               cat "$dotest/msg"
+                       } |
+                       git stripspace > "$dotest/msg-clean"
                fi
                ;;
        esac
@@ -489,7 +657,10 @@ do
                [eE]*) git_editor "$dotest/final-commit"
                       action=again ;;
                [vV]*) action=again
-                      LESS=-S ${PAGER:-less} "$dotest/patch" ;;
+                      : ${GIT_PAGER=$(git var GIT_PAGER)}
+                      : ${LESS=-FRSX}
+                      export LESS
+                      $GIT_PAGER "$dotest/patch" ;;
                *)     action=again ;;
                esac
            done