Fix all shellcheck errors in gp script

gp/gp

@@ -49,8 +49,10 @@ EOF
 
 # Function to generate commit message based on changes
 generate_commit_message() {
-    local files_changed=$(git diff --cached --name-only)
-    local files_count=$(echo "$files_changed" | wc -l)
+    local files_changed
+    files_changed=$(git diff --cached --name-only)
+    local files_count
+    files_count=$(echo "$files_changed" | wc -l)
     
     if [ -z "$files_changed" ]; then
         files_changed=$(git diff --name-only)
@@ -88,7 +90,7 @@ generate_commit_message() {
             *.md|*.txt|*.rst|docs/*|README*)
                 has_docs=true
                 ;;
-            *test*|*spec*|test/*|tests/*)
+            test/*|tests/*|*test*|*spec*)
                 has_tests=true
                 ;;
         esac
@@ -96,8 +98,10 @@ generate_commit_message() {
     
     # Create descriptive commit message
     if [ "$files_count" -eq 1 ]; then
-        local single_file=$(echo "$files_changed" | head -1)
-        local change_type=$(git diff --cached --name-status "$single_file" 2>/dev/null || git diff --name-status "$single_file")
+        local single_file
+        single_file=$(echo "$files_changed" | head -1)
+        local change_type
+        change_type=$(git diff --cached --name-status "$single_file" 2>/dev/null || git diff --name-status "$single_file")
         case "${change_type:0:1}" in
             A) message="Add $single_file" ;;
             M) message="Update $single_file" ;;
@@ -133,12 +137,16 @@ check_git_repo() {
 
 # Function to check for uncommitted changes and unpushed commits
 check_for_changes() {
-    local has_staged=$(! git diff --cached --quiet && echo "true" || echo "false")
-    local has_modified=$(! git diff --quiet && echo "true" || echo "false")
-    local has_untracked=$([ -n "$(git ls-files --others --exclude-standard)" ] && echo "true" || echo "false")
+    local has_staged
+    has_staged=$(! git diff --cached --quiet && echo "true" || echo "false")
+    local has_modified
+    has_modified=$(! git diff --quiet && echo "true" || echo "false")
+    local has_untracked
+    has_untracked=$([ -n "$(git ls-files --others --exclude-standard)" ] && echo "true" || echo "false")
     
     # Check for unpushed commits
-    local current_branch=$(git branch --show-current)
+    local current_branch
+    current_branch=$(git branch --show-current)
     local unpushed_commits=""
     if git rev-parse --verify "origin/$current_branch" >/dev/null 2>&1; then
         unpushed_commits=$(git rev-list "origin/$current_branch..HEAD" 2>/dev/null || true)
@@ -149,7 +157,8 @@ check_for_changes() {
         if [ "$has_staged" = false ] && [ "$has_modified" = false ] && [ "$has_untracked" = false ]; then
             # No working tree changes, but check for unpushed commits
             if [ -n "$unpushed_commits" ]; then
-                local commit_count=$(echo "$unpushed_commits" | wc -l)
+                local commit_count
+                commit_count=$(echo "$unpushed_commits" | wc -l)
                 print_info "No working tree changes, but found $commit_count unpushed commit(s)"
                 print_info "Latest unpushed commit: $(git log --oneline -1)"
                 
@@ -166,7 +175,8 @@ check_for_changes() {
         if [ "$has_staged" = false ]; then
             # No staged changes, but check for unpushed commits
             if [ -n "$unpushed_commits" ]; then
-                local commit_count=$(echo "$unpushed_commits" | wc -l)
+                local commit_count
+                commit_count=$(echo "$unpushed_commits" | wc -l)
                 print_info "No staged changes, but found $commit_count unpushed commit(s)"
                 print_info "Latest unpushed commit: $(git log --oneline -1)"
                 
@@ -204,7 +214,7 @@ show_status_and_confirm() {
     # Show staged changes
     if ! git diff --cached --quiet; then
         print_info "Staged changes:"
-        git diff --cached --name-only | sed 's/^/  /'
+        git diff --cached --name-only | while IFS= read -r line; do echo "  $line"; done
         has_staged_changes=true
     fi
     
@@ -215,16 +225,20 @@ show_status_and_confirm() {
         else
             print_info "Modified files (unstaged, will NOT be included):"
         fi
-        git diff --name-only | sed 's/^/  /'
+        git diff --name-only | while IFS= read -r line; do echo "  $line"; done
         has_unstaged_changes=true
     fi
     
     # Show untracked files
     if [ "$ADD_ALL" = true ]; then
-        local untracked=$(git ls-files --others --exclude-standard)
+        local untracked
+        untracked=$(git ls-files --others --exclude-standard)
         if [ -n "$untracked" ]; then
             print_info "Untracked files (will be added):"
-            echo "$untracked" | sed 's/^/  /'
+            # Use while loop to add indent without sed
+            while IFS= read -r line; do
+                echo "  $line"
+            done <<< "$untracked"
             has_untracked_files=true
         fi
     fi
@@ -411,8 +425,7 @@ main() {
         print_info "Using custom commit message: '$commit_message'"
     else
         print_info "Generating commit message..."
-        commit_message=$(generate_commit_message)
-        if [ $? -ne 0 ]; then
+        if ! commit_message=$(generate_commit_message); then
             print_error "Failed to generate commit message"
             exit 1
         fi