From 295b718e69f06d0b4a4dc20d76a63e459d10f112 Mon Sep 17 00:00:00 2001
From: Lars Wirzenius <liw@liw.fi>
Date: Sat, 22 Nov 2014 17:59:23 +0200
Subject: Refactor repetive code into shell library

---
 check                          |  2 +-
 yarns/900-implementations.yarn | 19 ++-----------------
 yarns/yarn.sh                  | 37 +++++++++++++++++++++++++++++++++++++
 3 files changed, 40 insertions(+), 18 deletions(-)
 create mode 100644 yarns/yarn.sh

diff --git a/check b/check
index 97732a4..19b680a 100755
--- a/check
+++ b/check
@@ -20,4 +20,4 @@
 set -eu
 
 
-yarn yarns/*.yarn "$@"
+yarn -s yarns/yarn.sh yarns/*.yarn "$@"
diff --git a/yarns/900-implementations.yarn b/yarns/900-implementations.yarn
index 80798af..a2e149f 100644
--- a/yarns/900-implementations.yarn
+++ b/yarns/900-implementations.yarn
@@ -58,28 +58,13 @@ We run `jt` from the source tree, without any configurations from the
 user, and with specific settings to make the test suite run smoother.
 
     IMPLEMENTS WHEN I run jt (.*)
-    EDITOR=true \
-    "$SRCDIR/jt" --no-default-config \
-        --config "$DATADIR/source.conf" \
-        --config "$DATADIR/time.conf" \
-        --layout=pkb \
-        --no-git \
-        $MATCH_1
-    echo 0 > "$DATADIR/jt.exit"
+    run_jt $MATCH_1
 
 Sometimes we expect `jt` to fail. In that case, the scenario step
 shouldn't fail.
 
     IMPLEMENTS WHEN I try to run jt (.*)
-    set +e
-    EDITOR=true \
-    "$SRCDIR/jt" --no-default-config \
-        --config "$DATADIR/source.conf" \
-        --config "$DATADIR/time.conf" \
-        --layout=pkb \
-        --no-git \
-        $MATCH_1
-    echo "$?" > "$DATADIR/jt.exit"
+    run_jt $MATCH_1 || true
 
 Check that the latest invocation of `jt` didn't fail.
 
diff --git a/yarns/yarn.sh b/yarns/yarn.sh
new file mode 100644
index 0000000..5f3e59b
--- /dev/null
+++ b/yarns/yarn.sh
@@ -0,0 +1,37 @@
+# Copyright 2014  Lars Wirzenius
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+# =*= License: GPL-3+ =*=
+
+
+# Yarn shell function library.
+
+
+# Run jt, from the source tree.
+
+run_jt()
+{
+    set +e
+    EDITOR=true \
+    "$SRCDIR/jt" --no-default-config \
+        --config "$DATADIR/source.conf" \
+        --config "$DATADIR/time.conf" \
+        --layout=pkb \
+        --no-git \
+        "$@"
+    exit_code="$?"
+    echo "$exit_code" > "$DATADIR/jt.exit"
+    return "$exit_code"
+}
-- 
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