Guard on more exotic filenames.

specs/clang/template/.githooks/pre-commit

@@ -1,12 +1,21 @@
 #!/usr/bin/env bash
 set -e
 
-FORMAT_FILES=$(
-  git --no-pager diff --name-status --no-color --cached | \
-    awk '$1 != "D" && $2 ~ /\.c$|\.h$/ {print $NF}'
+STAGED=$(
+  git --no-pager diff --name-only --no-color --cached --diff-filter=d |
+    # Remove quotations used to surrounding filenames with special characters.
+    sed -e "s/^\"//" -e "s/\"$//g"
 )
 
-if [ -n "$FORMAT_FILES" ]; then
-  clang-format -i "$FORMAT_FILES"
-  git add "$FORMAT_FILES"
+TARGETS=()
+while IFS= read -r FILENAME
+do
+  if [[ "$FILENAME" =~ .*\.c ]] || [[ "$FILENAME" == .*\.h ]]; then
+    TARGETS+=("${FILENAME}")
+  fi
+done <<< "$STAGED"
+
+if (( ${#TARGETS[@]} )); then
+  clang-format -i "${TARGETS[@]}"
+  git add "${TARGETS[@]}"
 fi

specs/mix/template/.githooks/pre-commit

@@ -1,12 +1,21 @@
 #!/usr/bin/env bash
 set -e
 
-FORMAT_FILES=$(
-  git --no-pager diff --name-status --no-color --cached | \
-    awk '$1 != "D" && $2 ~ /\.exs?$/ {print $NF}'
+STAGED=$(
+  git --no-pager diff --name-only --no-color --cached --diff-filter=d |
+    # Remove quotations used to surrounding filenames with special characters.
+    sed -e "s/^\"//" -e "s/\"$//g"
 )
 
-if [ -n "$FORMAT_FILES" ]; then
-  mix format "$FORMAT_FILES"
-  git add "$FORMAT_FILES"
+TARGETS=()
+while IFS= read -r FILENAME
+do
+  if [[ "$FILENAME" =~ .*\.exs? ]]; then
+    TARGETS+=("${FILENAME}")
+  fi
+done <<< "$STAGED"
+
+if (( ${#TARGETS[@]} )); then
+  mix format "${TARGETS[@]}"
+  git add "${TARGETS[@]}"
 fi

specs/nodejs/template/.githooks/pre-commit

@@ -1,12 +1,21 @@
 #!/usr/bin/env bash
 set -e
 
-FORMAT_FILES=$(
-  git --no-pager diff --name-status --no-color --cached | \
-    awk '$1 != "D" && $2 ~ /\.jsx?$|\.tsx?$/ {print $NF}'
+STAGED=$(
+  git --no-pager diff --name-only --no-color --cached --diff-filter=d |
+    # Remove quotations used to surrounding filenames with special characters.
+    sed -e "s/^\"//" -e "s/\"$//g"
 )
 
-if [ -n "$FORMAT_FILES" ]; then
-  prettier --write "$FORMAT_FILES"
-  git add "$FORMAT_FILES"
+TARGETS=()
+while IFS= read -r FILENAME
+do
+  if [[ "$FILENAME" =~ .*\.jsx? ]] || [[ "$FILENAME" == .*\.tsx? ]]; then
+    TARGETS+=("${FILENAME}")
+  fi
+done <<< "$STAGED"
+
+if (( ${#TARGETS[@]} )); then
+  prettier --write "${TARGETS[@]}"
+  git add "${TARGETS[@]}"
 fi

specs/phoenix/template/.githooks/pre-commit

@@ -1,22 +1,29 @@
 #!/usr/bin/env bash
 set -e
 
-MIX_FILES=$(
-  git --no-pager diff --name-status --no-color --cached | \
-    awk '$1 != "D" && $2 ~ /\.exs?$/ {print $NF}'
+STAGED=$(
+  git --no-pager diff --name-only --no-color --cached --diff-filter=d |
+    # Remove quotations used to surrounding filenames with special characters.
+    sed -e "s/^\"//" -e "s/\"$//g"
 )
 
-if [ -n "$MIX_FILES" ]; then
-  mix format "$MIX_FILES"
-  git add "$MIX_FILES"
+MIX_TARGETS=()
+WEB_TARGETS=()
+while IFS= read -r FILENAME
+do
+  if [[ "$FILENAME" =~ .*exs? ]]; then
+    MIX_TARGETS+=("${FILENAME}")
+  elif [[ "$FILENAME" =~ .*jsx? ]] || [[ "$FILENAME" =~ .*tsx? ]]; then
+    WEB_TARGETS+=("${FILENAME}")
+  fi
+done <<< "$STAGED"
+
+if (( ${#MIX_TARGETS[@]} )); then
+  mix format "${MIX_TARGETS[@]}"
+  git add "${MIX_TARGETS[@]}"
 fi
 
-WEB_FILES=$(
-  git --no-pager diff --name-status --no-color --cached | \
-    awk '$1 != "D" && $2 ~ /\.jsx?$|\.tsx?$/ {print $NF}'
-)
-
-if [ -n "$WEB_FILES" ]; then
-  prettier --write "$WEB_FILES"
-  git add "$WEB_FILES"
+if (( ${#WEB_TARGETS[@]} )); then
+  prettier --write "${WEB_TARGETS[@]}"
+  git add "${WEB_TARGETS[@]}"
 fi

specs/poetry/template/.githooks/pre-commit

@@ -1,12 +1,21 @@
 #!/usr/bin/env bash
 set -e
 
-FORMAT_FILES=$(
-  git --no-pager diff --name-status --no-color --cached | \
-    awk '$1 != "D" && $2 ~ /\.py$/ {print $NF}'
+STAGED=$(
+  git --no-pager diff --name-only --no-color --cached --diff-filter=d |
+    # Remove quotations used to surrounding filenames with special characters.
+    sed -e "s/^\"//" -e "s/\"$//g"
 )
 
-if [ -n "$FORMAT_FILES" ]; then
-  black --quiet "$FORMAT_FILES"
-  git add "$FORMAT_FILES"
+TARGETS=()
+while IFS= read -r FILENAME
+do
+  if [[ "$FILENAME" =~ .*\.py ]]; then
+    TARGETS+=("${FILENAME}")
+  fi
+done <<< "$STAGED"
+
+if (( ${#TARGETS[@]} )); then
+  black --quiet "${TARGETS[@]}"
+  git add "${TARGETS[@]}"
 fi