major refactor

lib/shell_config.sh

@@ -0,0 +1,94 @@
+#!/usr/bin/env bash
+# Shell configuration file manipulation utilities for bootstrap CLI
+
+if [ -n "${_LIB_SHELL_CONFIG_SOURCED:-}" ]; then
+    return 0
+fi
+_LIB_SHELL_CONFIG_SOURCED=1
+
+# Source common utilities if not already loaded
+if [ -z "${_LIB_COMMON_SOURCED:-}" ]; then
+    _LIB_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+    . "$_LIB_DIR/common.sh"
+fi
+
+# Find existing target shell RC files
+get_shell_configs() {
+    local target_files=()
+    [ -f "$HOME/.bashrc" ] && target_files+=("$HOME/.bashrc")
+    [ -f "$HOME/.zshrc" ] && target_files+=("$HOME/.zshrc")
+    echo "${target_files[@]}"
+}
+
+# Remove block from a shell RC file
+# Usage: remove_block <config_file> <block_name>
+remove_block() {
+    local config_file="$1"
+    local block_name="$2"
+
+    if [ -f "$config_file" ] && grep -q "# >>> $block_name >>>" "$config_file" 2>/dev/null; then
+        log_info "Removing block '$block_name' from $config_file"
+        # We use a temporary file to avoid issues with sed in-place options across BSD/GNU
+        local tmp_file
+        tmp_file=$(mktemp)
+        sed "/# >>> $block_name >>>/,/# <<< $block_name <<</d" "$config_file" > "$tmp_file"
+        cat "$tmp_file" > "$config_file"
+        rm -f "$tmp_file"
+    fi
+}
+
+# Append block to a shell RC file
+# Usage: inject_block <config_file> <block_name> <content>
+inject_block() {
+    local config_file="$1"
+    local block_name="$2"
+    local content="$3"
+
+    remove_block "$config_file" "$block_name"
+
+    log_info "Adding block '$block_name' to $config_file"
+    {
+        echo ""
+        echo "# >>> $block_name >>>"
+        echo "$content"
+        echo "# <<< $block_name <<<"
+    } >> "$config_file"
+}
+
+# Add alias if not present
+# Usage: add_alias_if_missing <config_file> <alias_name> <alias_value>
+add_alias_if_missing() {
+    local config_file="$1"
+    local name="$2"
+    local val="$3"
+
+    if [ -f "$config_file" ] && ! grep -q "alias $name=" "$config_file" 2>/dev/null; then
+        log_info "Adding alias $name to $config_file"
+        echo "alias ${name}=\"${val}\"" >> "$config_file"
+        return 0 # Added
+    fi
+    return 1 # Not added (already existed or file doesn't exist)
+}
+
+# Add environment variable if not present
+# Usage: add_env_if_missing <config_file> <var_name> <var_value>
+add_env_if_missing() {
+    local config_file="$1"
+    local name="$2"
+    local val="$3"
+
+    if [ -f "$config_file" ] && ! grep -q "export $name=" "$config_file" 2>/dev/null; then
+        log_info "Setting $name in $config_file"
+        echo "export ${name}=\"${val}\"" >> "$config_file"
+        return 0 # Added
+    fi
+    return 1 # Not added
+}
+
+# Setup fd symlink for Debian/Ubuntu (fdfind -> fd)
+create_fd_symlink() {
+    if ! has_command fd && has_command fdfind; then
+        log_info "Creating symlink for fd..."
+        sudo ln -sf "$(command -v fdfind)" /usr/local/bin/fd
+    fi
+}