Merge branch 'eb/quilt'

* eb/quilt:
  Implement a --dry-run option to git-quiltimport
  Implement git-quiltimport

Documentation/git-quiltimport.txt

@@ -0,0 +1,61 @@
+git-quiltimport(1)
+================
+
+NAME
+----
+git-quiltimport - Applies a quilt patchset onto the current branch
+
+
+SYNOPSIS
+--------
+[verse]
+'git-quiltimport' [--dry-run] [--author <author>] [--patches <dir>]
+
+
+DESCRIPTION
+-----------
+Applies a quilt patchset onto the current git branch, preserving
+the patch boundaries, patch order, and patch descriptions present
+in the quilt patchset.
+
+For each patch the code attempts to extract the author from the
+patch description.  If that fails it falls back to the author
+specified with --author.  If the --author flag was not given
+the patch description is displayed and the user is asked to
+interactively enter the author of the patch.
+
+If a subject is not found in the patch description the patch name is
+preserved as the 1 line subject in the git description.
+
+OPTIONS
+-------
+--dry-run::
+	Walk through the patches in the series and warn
+	if we cannot find all of the necessary information to commit
+	a patch.  At the time of this writing only missing author
+	information is warned about.
+
+--author Author Name <Author Email>::
+	The author name and email address to use when no author
+	information can be found in the patch description.
+
+--patches <dir>::
+	The directory to find the quilt patches and the
+	quilt series file.
+
+        The default for the patch directory is patches
+	or the value of the $QUILT_PATCHES environment
+	variable.
+
+Author
+------
+Written by Eric Biederman <ebiederm@lnxi.com>
+
+Documentation
+--------------
+Documentation by Eric Biederman <ebiederm@lnxi.com>
+
+GIT
+---
+Part of the gitlink:git[7] suite
+

Makefile

@@ -125,7 +125,7 @@ SCRIPT_SH = \
 	git-applymbox.sh git-applypatch.sh git-am.sh \
 	git-merge.sh git-merge-stupid.sh git-merge-octopus.sh \
 	git-merge-resolve.sh git-merge-ours.sh \
-	git-lost-found.sh
+	git-lost-found.sh git-quiltimport.sh
 
 SCRIPT_PERL = \
 	git-archimport.perl git-cvsimport.perl git-relink.perl \

git-quiltimport.sh

@@ -0,0 +1,118 @@
+#!/bin/sh
+USAGE='--dry-run --author <author> --patches </path/to/quilt/patch/directory>'
+SUBDIRECTORY_ON=Yes
+. git-sh-setup
+
+dry_run=""
+quilt_author=""
+while case "$#" in 0) break;; esac
+do
+	case "$1" in
+	--au=*|--aut=*|--auth=*|--autho=*|--author=*)
+		quilt_author=$(expr "$1" : '-[^=]*\(.*\)')
+		shift
+		;;
+
+	--au|--aut|--auth|--autho|--author)
+		case "$#" in 1) usage ;; esac
+		shift
+		quilt_author="$1"
+		shift
+		;;
+
+	--dry-run)
+		shift
+		dry_run=1
+		;;
+
+	--pa=*|--pat=*|--patc=*|--patch=*|--patche=*|--patches=*)
+		QUILT_PATCHES=$(expr "$1" : '-[^=]*\(.*\)')
+		shift
+		;;
+
+	--pa|--pat|--patc|--patch|--patche|--patches)
+		case "$#" in 1) usage ;; esac
+		shift
+		QUILT_PATCHES="$1"
+		shift
+		;;
+
+	*)
+		break
+		;;
+	esac
+done
+
+# Quilt Author
+if [ -n "$quilt_author" ] ; then
+	quilt_author_name=$(expr "z$quilt_author" : 'z\(.*[^ ]\) *<.*') &&
+	quilt_author_email=$(expr "z$quilt_author" : '.*<\([^>]*\)') &&
+	test '' != "$quilt_author_name" &&
+	test '' != "$quilt_author_email" ||
+	die "malformatted --author parameter"
+fi
+
+# Quilt patch directory
+: ${QUILT_PATCHES:=patches}
+if ! [ -d "$QUILT_PATCHES" ] ; then
+	echo "The \"$QUILT_PATCHES\" directory does not exist."
+	exit 1
+fi
+
+# Temporay directories
+tmp_dir=.dotest
+tmp_msg="$tmp_dir/msg"
+tmp_patch="$tmp_dir/patch"
+tmp_info="$tmp_dir/info"
+
+
+# Find the intial commit
+commit=$(git-rev-parse HEAD)
+
+mkdir $tmp_dir || exit 2
+for patch_name in $(cat "$QUILT_PATCHES/series" | grep -v '^#'); do
+	echo $patch_name
+	(cat $QUILT_PATCHES/$patch_name | git-mailinfo "$tmp_msg" "$tmp_patch" > "$tmp_info") || exit 3
+
+	# Parse the author information
+	export GIT_AUTHOR_NAME=$(sed -ne 's/Author: //p' "$tmp_info")
+	export GIT_AUTHOR_EMAIL=$(sed -ne 's/Email: //p' "$tmp_info")
+	while test -z "$GIT_AUTHOR_EMAIL" && test -z "$GIT_AUTHOR_NAME" ; do
+		if [ -n "$quilt_author" ] ; then
+			GIT_AUTHOR_NAME="$quilt_author_name";
+			GIT_AUTHOR_EMAIL="$quilt_author_email";
+		elif [ -n "$dry_run" ]; then
+			echo "No author found in $patch_name" >&2;
+			GIT_AUTHOR_NAME="dry-run-not-found";
+			GIT_AUTHOR_EMAIL="dry-run-not-found";
+		else
+			echo "No author found in $patch_name" >&2;
+			echo "---"
+			cat $tmp_msg
+			echo -n "Author: ";
+			read patch_author
+
+			echo "$patch_author"
+
+			patch_author_name=$(expr "z$patch_author" : 'z\(.*[^ ]\) *<.*') &&
+			patch_author_email=$(expr "z$patch_author" : '.*<\([^>]*\)') &&
+			test '' != "$patch_author_name" &&
+			test '' != "$patch_author_email" &&
+			GIT_AUTHOR_NAME="$patch_author_name" &&
+			GIT_AUTHOR_EMAIL="$patch_author_email"
+		fi
+	done
+	export GIT_AUTHOR_DATE=$(sed -ne 's/Date: //p' "$tmp_info")
+	export SUBJECT=$(sed -ne 's/Subject: //p' "$tmp_info")
+	if [ -z "$SUBJECT" ] ; then
+		SUBJECT=$(echo $patch_name | sed -e 's/.patch$//')
+	fi
+
+	if [ -z "$dry_run" ] ; then
+		git-apply --index -C1 "$tmp_patch" &&
+		tree=$(git-write-tree) &&
+		commit=$((echo "$SUBJECT"; echo; cat "$tmp_msg") | git-commit-tree $tree -p $commit) &&
+		git-update-ref HEAD $commit || exit 4
+	fi
+done
+rm -rf $tmp_dir || exit 5