fix: Improve Bash hygiene (#1056)

* fix: Improve Bash hygiene

* Update quoting to account for new bugs

* quotes

* fix: Remove extra shellcheck comment

bin/git-authors

@@ -22,9 +22,9 @@ done
 
 if ! $LIST; then
   FILE=$1
-  if test "$FILE" = ""; then
-    FILE=$(ls | grep -E 'authors|contributors' -i|head -n1)
-    if test "$FILE" = ""; then
+  if [ -z "$FILE" ]; then
+    FILE=$(find . -mindepth 1 -maxdepth 1 -iregex '.*\(authors\|contributors\).*' | head -n1)
+    if [ -z "$FILE" ]; then
       FILE='AUTHORS'
     fi
   fi

bin/git-changelog

@@ -280,7 +280,8 @@ commitList() {
   for (( i=0; i<"${_tags_list_keys_length}"; i++ )); do
     local __curr_tag="${tags_list_keys[$i]}"
     local __prev_tag="${tags_list_keys[$i+1]:-null}"
-    local __curr_date="$(_valueForKeyFakeAssocArray "${__curr_tag}" "${tags_list[*]}")"
+    local __curr_date
+    __curr_date="$(_valueForKeyFakeAssocArray "${__curr_tag}" "${tags_list[*]}")"
     __curr_date="${__curr_date##*=>}"
 
     # output latest commits, up until the most-recent tag, these are all
@@ -528,9 +529,10 @@ main() {
   #
   # generate changelog
   #
-  local tmpfile="$(git_extra_mktemp)"
-  local changelog="$(_valueForKeyFakeAssocArray "output_file" "${option[*]}")"
-  local title_tag="$(_valueForKeyFakeAssocArray "title_tag" "${option[*]}")"
+  local tmpfile changelog title_tag
+  tmpfile="$(git_extra_mktemp)"
+  changelog="$(_valueForKeyFakeAssocArray "output_file" "${option[*]}")"
+  title_tag="$(_valueForKeyFakeAssocArray "title_tag" "${option[*]}")"
 
   if [[ "$(_valueForKeyFakeAssocArray "list_style" "${option[*]}")" == true ]]; then
     if [[ "$(_valueForKeyFakeAssocArray "list_all" "${option[*]}")" == true ]]; then
@@ -549,7 +551,7 @@ main() {
   fi
 
   if [[ -z "$changelog" ]]; then
-    changelog="$(ls | grep -E 'change|history' -i | head -n1)"
+    changelog="$(find . -mindepth 1 -maxdepth 1 -iregex '.*\(change\|history\).*' | head -n1)"
     if [[ -z "$changelog" ]]; then
       changelog="History.md";
     fi

bin/git-guilt

@@ -87,7 +87,7 @@ do
             do
                 printf "+"
             done
-            printf "(%s)" $num
+            printf "(%s)" "$num"
         else
             for (( i = 0; i < num; i++ ))
             do

bin/git-rebase-patch

@@ -20,7 +20,7 @@ cleanup() {
         rm "$index"
         exit 2
 }
-trap cleanup 2
+trap cleanup INT
 
 # Go back in history while parent commits are available.
 echo "Trying to find a commit the patch applies to..."

bin/git-scp

@@ -80,7 +80,8 @@ function scp_and_stage
 	set_remote "$1"
 	shift
 
-	local refhead="$(git rev-parse --quiet --verify "$1")"
+	local refhead
+	refhead="$(git rev-parse --quiet --verify "$1")"
 	if [ -n "$refhead" ]
 	then
 		shift

bin/git-summary

@@ -45,30 +45,28 @@ if [ -n "$MERGES_ARG" ] && [ -n "$SUMMARY_BY_LINE" ]; then
     exit 1
 fi
 
-
+commit="HEAD"
 if [ -n "$SUMMARY_BY_LINE" ]; then
   paths=( "$@" )
 else
-  commit="HEAD"
   [ $# -ne 0 ] && commit=$*
 fi
 project=${PWD##*/}
 
 #
 # get date for the given <commit>
 #
-date() {
+commit_date() {
   # the $1 can be empty
   # shellcheck disable=SC2086
-  git log $MERGES_ARG --pretty='format: %ai' $1 | cut -d ' ' -f 2
+  git log $MERGES_ARG --pretty='format: %ai' "$1" | cut -d ' ' -f 2
 }
 
 #
 # get active days for the given <commit>
 #
 active_days() {
-  # shellcheck disable=SC2086
-  date $1 | sort -r | uniq | awk '
+  commit_date "$1" | sort -r | uniq | awk '
     { sum += 1 }
     END { print sum }
   '
@@ -79,7 +77,7 @@ active_days() {
 #
 commit_count() {
   # shellcheck disable=SC2086
-  git log $MERGES_ARG --oneline $commit | wc -l | tr -d ' '
+  git log $MERGES_ARG --oneline "$commit" | wc -l | tr -d ' '
 }
 
 #
@@ -216,19 +214,17 @@ print_summary_by_line() {
 print_summary() {
   if [ "$OUTPUT_STYLE" == "tabular" ]; then
     tabular_headers="# Repo $SP Age $SP Last active $SP Active on $SP Commits $SP Uncommitted $SP Branch"
-    echo -e "$tabular_headers\n$project $SP $(repository_age) $SP $(last_active) $SP $(active_days $commit) days $SP $(commit_count $commit) $SP $(uncommitted_changes_count) $SP $(current_branch_name)" | column -t -s "$COLUMN_CMD_DELIMTER"
+    echo -e "$tabular_headers\n$project $SP $(repository_age) $SP $(last_active) $SP $(active_days "$commit") days $SP $(commit_count "$commit") $SP $(uncommitted_changes_count) $SP $(current_branch_name)" | column -t -s "$COLUMN_CMD_DELIMTER"
   elif [ "$OUTPUT_STYLE" == "oneline" ]; then
-    echo "$project / age: $(repository_age) / last active: $(last_active) / active on $(active_days $commit) days / commits: $(commit_count $commit) / uncommitted: $(uncommitted_changes_count) / branch: $(current_branch_name)"
+    echo "$project / age: $(repository_age) / last active: $(last_active) / active on $(active_days "$commit") days / commits: $(commit_count "$commit") / uncommitted: $(uncommitted_changes_count) / branch: $(current_branch_name)"
   else
     echo
     echo " project     : $project"
     echo " repo age    : $(repository_age)"
     echo " branch:     : $(current_branch_name)"
     echo " last active : $(last_active)"
-    # shellcheck disable=SC2086
-    echo " active on   : $(active_days $commit) days"
-    # shellcheck disable=SC2086
-    echo " commits     : $(commit_count $commit)"
+    echo " active on   : $(active_days "$commit") days"
+    echo " commits     : $(commit_count "$commit")"
 
     # The file count doesn't support passing a git ref so ignore it if a ref is given
     if [ "$commit" == "HEAD" ]; then
@@ -239,10 +235,10 @@ print_summary() {
     if [ -n "$DEDUP_BY_EMAIL" ]; then
       # the $commit can be empty
       # shellcheck disable=SC2086
-      git shortlog $MERGES_ARG -n -s -e $commit | dedup_by_email | format_authors
+      git shortlog $MERGES_ARG -n -s -e "$commit" | dedup_by_email | format_authors
     else
       # shellcheck disable=SC2086
-      git shortlog $MERGES_ARG -n -s $commit | format_authors
+      git shortlog $MERGES_ARG -n -s "$commit" | format_authors
     fi
   fi
 }