#!/bin/sh
# This file is dedicated to the public domain.

set -e # windows git doesn't seem to like flags in the shebang!?

usage() {
	printf 'usage: git grab [-p projectid] patchset\n' >&2
	exit 1
}

while getopts ":p:" arg; do
	case "$arg" in
		p) projectid="$OPTARG" ;;
		*) usage ;;
	esac
done
shift $((OPTIND - 1))

if [ $# != 1 ]; then usage; fi
patchset="$1"

. "`dirname "$0"`/../lib/patchbot-setup.sh"

doreq() {
	flags="-sL"
	if [ -n "$token" ]; then flags="-sLHAuthorization: Bearer $token"; fi
	"$curl" -XGET "$flags" \
			-H"User-Agent patchbot-client v3" \
			--url-query "projectid=$projectid" \
			--url-query "patchset=$patchset" \
			-w"%{response_code}" \
			-o "$gitdir/PatchBot.$patchset.tmp" \
			"$server/grab" || :
}
dumpresponse() {
	printf "Server returned HTTP status $httpcode.\nResponse:\n" >&2
	< "$gitdir/PatchBot.$patchset.tmp" sed 's/^/|   /' >&2 # indent it!
	rm "$gitdir/PatchBot.$patchset.tmp"
}

# if we don't have a token we can try an anonymous grab first. if the project
# doesn't allow it we'll get a 401 and can then do the auth setup prompt.
httpcode="`doreq`"
if [ "$httpcode" = 401 ]; then dumpresponse; setupauth; doreq; fi
if [ "$httpcode" != 200 ]; then dumpresponse; exit 2; fi
< "$gitdir/PatchBot.$patchset.tmp" git am --keep-cr
rm "$gitdir/PatchBot.$patchset.tmp"

# vi: sw=4 ts=4 noet tw=80 cc=80