2 files changed, 20 insertions, 0 deletions
diff --git a/src/doc/rustc-dev-guide/ci/check_line_lengths.sh b/src/doc/rustc-dev-guide/ci/check_line_lengths.sh
new file mode 100755
index 00000000000..8001ea9a7c3
--- /dev/null
+++ b/src/doc/rustc-dev-guide/ci/check_line_lengths.sh
@@ -0,0 +1,19 @@
+#!/bin/bash
+
+echo "Checking line lengths in all source files <= $MAX_LINE_LENGTH chars..."
+
+echo "Offending files and lines:"
+(( success = 1 ))
+for file in "$@" ; do
+  echo "$file"
+  (( line_no = 0 ))
+  while IFS="" read -r line || [[ -n "$line" ]] ; do
+    (( line_no++ ))
+    if (( "${#line}" > $MAX_LINE_LENGTH )) ; then
+      (( success = 0 ))
+      echo -e "\t$line_no : $line"
+    fi
+  done < "$file"
+done
+
+(( $success )) && echo "No offending lines found."
diff --git a/src/doc/rustc-dev-guide/ci/install.sh b/src/doc/rustc-dev-guide/ci/install.sh
index 975857a95a0..ea90e853dfa 100644..100755
--- a/src/doc/rustc-dev-guide/ci/install.sh
+++ b/src/doc/rustc-dev-guide/ci/install.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+
 set -ex
 
 function cargo_install() {