Fix misc shellcheck complaints

Author: tnull

ci/check-compiles.sh

@@ -1,7 +1,7 @@
 #!/bin/sh
 set -e
 set -x
-echo Testing $(git log -1 --oneline)
+echo "Testing $(git log -1 --oneline)"
 cargo check
 cargo doc
 cargo doc --document-private-items

ci/check-each-commit.sh

@@ -12,4 +12,4 @@ if [ "$(git log --pretty="%H %D" | grep "^[0-9a-f]*.* $1")" = "" ]; then
 	echo "It seems like the current checked-out commit is not based on $1"
 	exit 1
 fi
-git rebase --exec ci/check-compiles.sh $1
+git rebase --exec ci/check-compiles.sh "$1"

ci/rustfmt.sh

@@ -14,8 +14,8 @@ VERS=""
 
 # Run fmt
 TMP_FILE=$(mktemp)
-find . -name '*.rs' -type f |sort >$TMP_FILE
-for file in $(comm -23 $TMP_FILE rustfmt_excluded_files); do
+find . -name '*.rs' -type f |sort >"$TMP_FILE"
+for file in $(comm -23 "$TMP_FILE" rustfmt_excluded_files); do
 	echo "Checking formatting of $file"
-	rustfmt $VERS --edition 2021 --check $file
+	rustfmt $VERS --edition 2021 --check "$file"
 done

contrib/download_bitcoind_electrs.sh

@@ -22,7 +22,8 @@ elif [[ "$HOST_PLATFORM" == *darwin* ]]; then
 	BITCOIND_DL_FILE_NAME=bitcoin-"$BITCOIND_VERSION"-x86_64-apple-darwin.tar.gz
 	BITCOIND_DL_HASH="1acfde0ec3128381b83e3e5f54d1c7907871d324549129592144dd12a821eff1"
 else
-	echo "\n\nUnsupported platform: $HOST_PLATFORM Exiting.."
+	printf "\n\n"
+	echo "Unsupported platform: $HOST_PLATFORM Exiting.."
 	exit 1
 fi
 

contrib/run-rustfmt.sh

@@ -14,8 +14,8 @@ VERS=""
 
 # Run fmt
 TMP_FILE=$(mktemp)
-find . -name '*.rs' -type f |sort >$TMP_FILE
-for file in $(comm -23 $TMP_FILE rustfmt_excluded_files); do
+find . -name '*.rs' -type f |sort >"$TMP_FILE"
+for file in $(comm -23 "$TMP_FILE" rustfmt_excluded_files); do
 	echo "Formatting $file..."
-	rustfmt $VERS --edition 2021 $file
+	rustfmt $VERS --edition 2021 "$file"
 done