Merge branch 'ps/dash-buggy-0.5.13-workaround'

The way dash 0.5.13 handles non-ASCII contents in here-doc
is buggy and breaks our existing tests, which unfortunately
have been rewritten to avoid triggering the bug.

* ps/dash-buggy-0.5.13-workaround:
  t9300: work around partial read bug in Dash v0.5.13
  t: work around multibyte bug in quoted heredocs with Dash v0.5.13

t/t0300-credentials.sh

@@ -675,7 +675,9 @@ test_expect_success 'match percent-encoded values' '
 test_expect_success 'match percent-encoded UTF-8 values in path' '
 	test_config credential.https://example.com.useHttpPath true &&
 	test_config credential.https://example.com/perú.git.helper "$HELPER" &&
-	check fill <<-\EOF
+	# NOTE: do not quote this heredoc, Dash 0.5.13 has a bug with heredocs
+	# that contain multibyte chars.
+	check fill <<-EOF
 	url=https://example.com/per%C3%BA.git
 	--
 	protocol=https

t/t3430-rebase-merges.sh

@@ -507,9 +507,11 @@ test_expect_success 'octopus merges' '
 	git rebase -i --force-rebase -r HEAD^^ &&
 	test "Hank" = "$(git show -s --format=%an HEAD)" &&
 	test "$before" != $(git rev-parse HEAD) &&
-	test_cmp_graph HEAD^^.. <<-\EOF
+	# NOTE: do not quote this heredoc, Dash 0.5.13 has a bug with heredocs
+	# that contain multibyte chars.
+	test_cmp_graph HEAD^^.. <<-EOF
 	*-.   Tüntenfüsch
-	|\ \
+	|\\ \\
 	| | * three
 	| * | two
 	| |/

t/t3902-quoted.sh

@@ -60,16 +60,18 @@ With SP in it
 "\346\277\261\351\207\216\347\264\224"
 EOF
 
-cat >expect.raw <<\EOF
+# NOTE: do not quote this heredoc, Dash 0.5.13 has a bug with heredocs
+# that contain multibyte chars.
+cat >expect.raw <<EOF
 Name
-"Name and a\nLF"
-"Name and an\tHT"
-"Name\""
+"Name and a\\nLF"
+"Name and an\\tHT"
+"Name\\""
 With SP in it
-"濱野\t純"
-"濱野\n純"
+"濱野\\t純"
+"濱野\\n純"
 濱野 純
-"濱野\"純"
+"濱野\\"純"
 濱野/file
 濱野純
 EOF

t/t4014-format-patch.sh

@@ -1410,7 +1410,9 @@ test_expect_success 'format-patch wraps extremely long from-header (rfc2047)' '
 	check_author "Foö Bar Foo Bar Foo Bar Foo Bar Foo Bar Foo Bar Foo Bar Foo Bar Foo Bar Foo Bar Foo Bar Foo Bar Foo Bar Foo Bar Foo Bar Foo Bar Foo Bar Foo Bar Foo Bar Foo Bar Foo Bar Foo Bar"
 '
 
-cat >expect <<'EOF'
+# NOTE: do not quote this heredoc, Dash 0.5.13 has a bug with heredocs
+# that contain multibyte chars.
+cat >expect <<EOF
 From: Foö Bar Foo Bar Foo Bar Foo Bar Foo Bar Foo Bar Foo Bar Foo Bar Foo Bar
  Foo Bar Foo Bar Foo Bar Foo Bar Foo Bar Foo Bar Foo Bar Foo Bar Foo Bar Foo
  Bar Foo Bar Foo Bar Foo Bar <author@example.com>
@@ -1425,7 +1427,9 @@ test_expect_success 'format-patch wraps extremely long from-header (non-ASCII wi
 	test_cmp expect actual
 '
 
-cat >expect <<'EOF'
+# NOTE: do not quote this heredoc, Dash 0.5.13 has a bug with heredocs
+# that contain multibyte chars.
+cat >expect <<EOF
 Subject: [PATCH] Foö
 EOF
 test_expect_success 'subject lines are unencoded with --no-encode-email-headers' '
@@ -1437,7 +1441,9 @@ test_expect_success 'subject lines are unencoded with --no-encode-email-headers'
 	test_cmp expect actual
 '
 
-cat >expect <<'EOF'
+# NOTE: do not quote this heredoc, Dash 0.5.13 has a bug with heredocs
+# that contain multibyte chars.
+cat >expect <<EOF
 Subject: [PATCH] Foö
 EOF
 test_expect_success 'subject lines are unencoded with format.encodeEmailHeaders=false' '
@@ -1656,7 +1662,9 @@ test_expect_success 'in-body headers trigger content encoding' '
 	test_env GIT_AUTHOR_NAME="éxötìc" test_commit exotic &&
 	test_when_finished "git reset --hard HEAD^" &&
 	git format-patch -1 --stdout --from >patch &&
-	cat >expect <<-\EOF &&
+	# NOTE: do not quote this heredoc, Dash 0.5.13 has a bug with heredocs
+	# that contain multibyte chars.
+	cat >expect <<-EOF &&
 	From: C O Mitter <committer@example.com>
 	Content-Type: text/plain; charset=UTF-8
 

t/t4201-shortlog.sh

@@ -105,7 +105,9 @@ test_expect_success 'output from user-defined format is re-wrapped' '
 '
 
 test_expect_success !MINGW,ICONV 'shortlog wrapping' '
-	cat >expect <<\EOF &&
+	# NOTE: do not quote this heredoc, Dash 0.5.13 has a bug with heredocs
+	# that contain multibyte chars.
+	cat >expect <<EOF &&
 A U Thor (5):
       Test
       This is a very, very long first line for the commit message to see if

t/t9001-send-email.sh

@@ -1649,7 +1649,9 @@ test_expect_success $PREREQ 'To headers from files reset each patch' '
 '
 
 test_expect_success $PREREQ 'setup expect' '
-cat >email-using-8bit <<\EOF
+# NOTE: do not quote this heredoc, Dash 0.5.13 has a bug with heredocs
+# that contain multibyte chars.
+cat >email-using-8bit <<EOF
 From fe6ecc66ece37198fe5db91fa2fc41d9f4fe5cc4 Mon Sep 17 00:00:00 2001
 Message-ID: <bogus-message-id@example.com>
 From: author@example.com
@@ -1735,7 +1737,9 @@ test_expect_success $PREREQ '--8bit-encoding overrides sendemail.8bitEncoding' '
 '
 
 test_expect_success $PREREQ 'setup expect' '
-	cat >email-using-8bit <<-\EOF
+	# NOTE: do not quote this heredoc, Dash 0.5.13 has a bug with heredocs
+	# that contain multibyte chars.
+	cat >email-using-8bit <<-EOF
 	From fe6ecc66ece37198fe5db91fa2fc41d9f4fe5cc4 Mon Sep 17 00:00:00 2001
 	Message-ID: <bogus-message-id@example.com>
 	From: author@example.com
@@ -1764,7 +1768,9 @@ test_expect_success $PREREQ '--8bit-encoding also treats subject' '
 '
 
 test_expect_success $PREREQ 'setup expect' '
-	cat >email-using-8bit <<-\EOF
+	# NOTE: do not quote this heredoc, Dash 0.5.13 has a bug with heredocs
+	# that contain multibyte chars.
+	cat >email-using-8bit <<-EOF
 	From fe6ecc66ece37198fe5db91fa2fc41d9f4fe5cc4 Mon Sep 17 00:00:00 2001
 	Message-ID: <bogus-message-id@example.com>
 	From: A U Thor <author@example.com>

t/t9300-fast-import.sh

@@ -3635,25 +3635,21 @@ background_import_then_checkpoint () {
 		echo "progress checkpoint"
 	) >&8 &
 
-	error=1 ;# assume the worst
-	while read output <&9
-	do
-		if test "$output" = "progress checkpoint"
-		then
-			error=0
-			break
-		elif test "$output" = "UNEXPECTED"
-		then
-			break
-		fi
-		# otherwise ignore cruft
-		echo >&2 "cruft: $output"
-	done
+	last=$(
+		while read output <&9
+		do
+			if test "$output" = "progress checkpoint" || test "$output" = "UNEXPECTED"
+			then
+				echo "$output"
+				break
+			else
+				# otherwise ignore cruft
+				echo >&2 "cruft: $output"
+			fi
+		done
+	)
 
-	if test $error -eq 1
-	then
-		false
-	fi
+	test "$last" = "progress checkpoint"
 }
 
 background_import_still_running () {