Ignore renamed files for mustache lint

If files are only renamed, and do not contain any other changes, there
is not need to mustache lint them.

Author: andrewnicols

list_changed_files/list_changed_files.sh

@@ -10,6 +10,8 @@
 # Don't be strict. Script has own error control handle
 set +e
 
+difffilter=${1:-"ACDMRTUXB"}
+
 # Verify everything is set
 required="gitcmd gitdir initialcommit finalcommit"
 for var in $required; do
@@ -46,5 +48,5 @@ if [[ ${PIPESTATUS[0]} -ne 0 ]]; then
 fi
 
 # get all the files changed between both commits (no matter the diffs are empty)
-git log --name-only --pretty=oneline --full-index ${initialcommit}..${finalcommit} | \
+git log --diff-filter=${difffilter} --find-renames=100% --name-only --pretty=oneline --full-index ${initialcommit}..${finalcommit} | \
     grep -vE '^[0-9a-f]{40} ' | sort | uniq

mustache_lint/mustache_lint.sh

@@ -46,7 +46,9 @@ echo "Validating using $validator"
 
 export initialcommit=${GIT_PREVIOUS_COMMIT}
 export finalcommit=${GIT_COMMIT}
-if mfiles=$(${mydir}/../list_changed_files/list_changed_files.sh)
+# Fetch all files, excluding files which are renames.
+# There is no need to check renames.
+if mfiles=$(${mydir}/../list_changed_files/list_changed_files.sh r)
 then
     echo "Running mustache lint from $initialcommit to $finalcommit:"
 else