From 7a882fd967cb2f6384e853da73734a518b3eb43e Mon Sep 17 00:00:00 2001
From: Sergio Benitez <sb@sergio.bz>
Date: Wed, 28 Dec 2016 22:33:56 -0600
Subject: [PATCH] Disallow tabs in testing script.

---
 scripts/config.sh  |  1 +
 scripts/mk-docs.sh |  2 +-
 scripts/publish.sh |  2 +-
 scripts/test.sh    | 18 +++++++++++++++---
 4 files changed, 18 insertions(+), 5 deletions(-)

diff --git a/scripts/config.sh b/scripts/config.sh
index c49f2802..31435da4 100755
--- a/scripts/config.sh
+++ b/scripts/config.sh
@@ -23,6 +23,7 @@ function relative() {
   fi
 }
 
+ROOT_DIR=$(relative "") || exit $?
 EXAMPLES_DIR=$(relative "examples") || exit $?
 LIB_DIR=$(relative "lib") || exit $?
 CODEGEN_DIR=$(relative "codegen") || exit $?
diff --git a/scripts/mk-docs.sh b/scripts/mk-docs.sh
index 8bc15b26..4d5771ea 100755
--- a/scripts/mk-docs.sh
+++ b/scripts/mk-docs.sh
@@ -5,7 +5,7 @@ set -e
 # Builds the rustdocs for all of the libraries.
 #
 
-# Brings in: EXAMPLES_DIR, LIB_DIR, CODEGEN_DIR, and CONTRIB_DIR, DOC_DIR
+# Brings in: ROOT_DIR, EXAMPLES_DIR, LIB_DIR, CODEGEN_DIR, CONTRIB_DIR, DOC_DIR
 SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 source $SCRIPT_DIR/config.sh
 
diff --git a/scripts/publish.sh b/scripts/publish.sh
index 98868c31..dc042698 100755
--- a/scripts/publish.sh
+++ b/scripts/publish.sh
@@ -5,7 +5,7 @@ set -e
 # Publishes the current versions of core, contrib, and codegen to crates.io.
 #
 
-# Brings in: EXAMPLES_DIR, LIB_DIR, CODEGEN_DIR, CONTRIB_DIR, DOC_DIR
+# Brings in: ROOT_DIR, EXAMPLES_DIR, LIB_DIR, CODEGEN_DIR, CONTRIB_DIR, DOC_DIR
 SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 source $SCRIPT_DIR/config.sh
 
diff --git a/scripts/test.sh b/scripts/test.sh
index 2836e876..5cb11de4 100755
--- a/scripts/test.sh
+++ b/scripts/test.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 set -e
 
-# Brings in: EXAMPLES_DIR, LIB_DIR, CODEGEN_DIR, and CONTRIB_DIR, DOC_DIR
+# Brings in: ROOT_DIR, EXAMPLES_DIR, LIB_DIR, CODEGEN_DIR, CONTRIB_DIR, DOC_DIR
 SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 source $SCRIPT_DIR/config.sh
 
@@ -27,8 +27,6 @@ function build_and_test() {
 
 # Checks that the versions for Cargo projects $@ all match
 function check_versions_match() {
-  echo ":: Ensuring all crate versions match..."
-
   local last_version=""
   for dir in $@; do
     local cargo_toml="${dir}/Cargo.toml"
@@ -47,8 +45,22 @@ function check_versions_match() {
   done
 }
 
+# Ensures there are not tabs in any file in the directories $@.
+function ensure_tab_free() {
+  local matches=$(egrep -I -R '\t' $ROOT_DIR | egrep -v '/target|/.git|LICENSE')
+  if ! [ -z "${matches}" ]; then
+    echo "Tab characters were found in the following:"
+    echo "${matches}"
+    exit 1
+  fi
+}
+
+echo ":: Ensuring all crate versions match..."
 check_versions_match "${LIB_DIR}" "${CODEGEN_DIR}" "${CONTRIB_DIR}"
 
+echo ":: Checking for tabs..."
+ensure_tab_free
+
 # Update dependencies before running tests.
 echo ":: Updating dependencies..."
 cargo update