Properly handle paths with spaces in shell scripts.

examples/todo/bootstrap.sh

@@ -1,19 +1,19 @@
 #! /usr/bin/env bash
 
 SCRIPT_PATH=$(cd "$(dirname "$0")" ; pwd -P)
-DATABASE_URL=${SCRIPT_PATH}/db/db.sql
+DATABASE_URL="${SCRIPT_PATH}/db/db.sql"
 
-pushd $SCRIPT_PATH > /dev/null
+pushd "${SCRIPT_PATH}" > /dev/null
   # clear an existing database
-  rm -f $DATABASE_URL
+  rm -f "${DATABASE_URL}"
 
   # install the diesel CLI tools if they're not installed
   if ! command -v diesel >/dev/null 2>&1; then
     cargo install diesel_cli --no-default-features --features=sqlite > /dev/null
   fi
 
   # create db/db.sql
-  diesel migration --database-url=$DATABASE_URL run > /dev/null
+  diesel migration --database-url="${DATABASE_URL}" run > /dev/null
 popd > /dev/null
 
-echo "export DATABASE_URL=$DATABASE_URL"
+echo "export DATABASE_URL=\"${DATABASE_URL}\""

scripts/mk-docs.sh

@@ -7,12 +7,12 @@ set -e
 
 # Brings in: ROOT_DIR, EXAMPLES_DIR, LIB_DIR, CODEGEN_DIR, CONTRIB_DIR, DOC_DIR
 SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
-source $SCRIPT_DIR/config.sh
+source "${SCRIPT_DIR}/config.sh"
 
 function mk_doc() {
   local dir=$1
   local flag=$2
-  pushd $dir > /dev/null 2>&1
+  pushd "${dir}" > /dev/null 2>&1
     echo ":: Documenting '${dir}'..."
     cargo doc --no-deps --all-features
   popd > /dev/null 2>&1
@@ -22,9 +22,9 @@ function mk_doc() {
 cargo clean
 cargo update
 
-mk_doc $LIB_DIR
-mk_doc $CODEGEN_DIR
-mk_doc $CONTRIB_DIR
+mk_doc "${LIB_DIR}"
+mk_doc "${CODEGEN_DIR}"
+mk_doc "${CONTRIB_DIR}"
 
 # Blank index, for redirection.
-touch ${DOC_DIR}/index.html
+touch "${DOC_DIR}/index.html"

scripts/publish.sh

@@ -7,7 +7,7 @@ set -e
 
 # Brings in: ROOT_DIR, EXAMPLES_DIR, LIB_DIR, CODEGEN_DIR, CONTRIB_DIR, DOC_DIR
 SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
-source $SCRIPT_DIR/config.sh
+source "${SCRIPT_DIR}/config.sh"
 
 if ! [ -z "$(git status --porcelain)" ]; then
   echo "There are uncommited changes! Aborting."
@@ -17,19 +17,19 @@ fi
 # Ensure everything passes before trying to publish.
 echo ":::: Running test suite..."
 cargo clean
-${SCRIPT_DIR}/test.sh
+bash "${SCRIPT_DIR}/test.sh"
 
 # Temporarily remove the dependency on codegen from core so crates.io verifies.
-sed -i.bak 's/rocket_codegen.*//' ${LIB_DIR}/Cargo.toml
+sed -i.bak 's/rocket_codegen.*//' "${LIB_DIR}/Cargo.toml"
 
 # Publish all the things.
 for dir in "${LIB_DIR}" "${CODEGEN_DIR}" "${CONTRIB_DIR}"; do
-  pushd ${dir}
+  pushd "${dir}"
   echo ":::: Publishing '${dir}..."
   # We already checked things ourselves. Don't spend time reverifying.
   cargo publish --no-verify --allow-dirty
   popd
 done
 
 # Restore the original core Cargo.toml.
-mv ${LIB_DIR}/Cargo.toml.bak ${LIB_DIR}/Cargo.toml
+mv "${LIB_DIR}/Cargo.toml.bak" "${LIB_DIR}/Cargo.toml"

scripts/test.sh

@@ -3,22 +3,22 @@ set -e
 
 # Brings in: ROOT_DIR, EXAMPLES_DIR, LIB_DIR, CODEGEN_DIR, CONTRIB_DIR, DOC_DIR
 SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
-source $SCRIPT_DIR/config.sh
+source "${SCRIPT_DIR}/config.sh"
 
 # Add Cargo to PATH.
 export PATH=${HOME}/.cargo/bin:${PATH}
 
 # Checks that the versions for Cargo projects $@ all match
 function check_versions_match() {
   local last_version=""
-  for dir in $@; do
+  for dir in "${@}"; do
     local cargo_toml="${dir}/Cargo.toml"
     if ! [ -f "${cargo_toml}" ]; then
       echo "Cargo configuration file '${cargo_toml}' does not exist."
       exit 1
     fi
 
-    local version=$(grep version ${cargo_toml} | head -n 1 | cut -d' ' -f3)
+    local version=$(grep version "${cargo_toml}" | head -n 1 | cut -d' ' -f3)
     if [ -z "${last_version}" ]; then
       last_version="${version}"
     elif ! [ "${version}" = "${last_version}" ]; then
@@ -31,7 +31,7 @@ function check_versions_match() {
 # Ensures there are no tabs in any file.
 function ensure_tab_free() {
   local tab=$(printf '\t')
-  local matches=$(grep -I -R "${tab}" $ROOT_DIR | egrep -v '/target|/.git|LICENSE')
+  local matches=$(grep -I -R "${tab}" "${ROOT_DIR}" | egrep -v '/target|/.git|LICENSE')
   if ! [ -z "${matches}" ]; then
     echo "Tab characters were found in the following:"
     echo "${matches}"
@@ -41,7 +41,7 @@ function ensure_tab_free() {
 
 # Ensures there are no files with trailing whitespace.
 function ensure_trailing_whitespace_free() {
-  local matches=$(egrep -I -R " +$" $ROOT_DIR | egrep -v "/target|/.git")
+  local matches=$(egrep -I -R " +$" "${ROOT_DIR}" | egrep -v "/target|/.git")
   if ! [ -z "${matches}" ]; then
     echo "Trailing whitespace was found in the following:"
     echo "${matches}"
@@ -50,23 +50,21 @@ function ensure_trailing_whitespace_free() {
 }
 
 function bootstrap_examples() {
-  for file in ${EXAMPLES_DIR}/*; do
-    if [ -d "${file}" ]; then
-      bootstrap_script="${file}/bootstrap.sh"
-      if [ -x "${bootstrap_script}" ]; then
-        echo "    Bootstrapping ${file}..."
+  while read -r file; do
+    bootstrap_script="${file}/bootstrap.sh"
+    if [ -x "${bootstrap_script}" ]; then
+      echo "    Bootstrapping ${file}..."
 
-        env_vars=$(${bootstrap_script})
-        bootstrap_result=$?
-        if [ $bootstrap_result -ne 0 ]; then
-          echo "    Running bootstrap script (${bootstrap_script}) failed!"
-          exit 1
-        else
-          eval $env_vars
-        fi
+      env_vars=$(bash "${bootstrap_script}")
+      bootstrap_result=$?
+      if [ $bootstrap_result -ne 0 ]; then
+        echo "    Running bootstrap script (${bootstrap_script}) failed!"
+        exit 1
+      else
+        eval $env_vars
       fi
     fi
-  done
+  done < <(find "${EXAMPLES_DIR}" -maxdepth 1 -type d)
 }
 
 echo ":: Ensuring all crate versions match..."
@@ -81,7 +79,7 @@ ensure_trailing_whitespace_free
 echo ":: Updating dependencies..."
 cargo update
 
-echo ":: Boostrapping examples..."
+echo ":: Bootstrapping examples..."
 bootstrap_examples
 
 echo ":: Building and testing libraries..."