Logan Fick
6b70ce8a97
The changes include: - Split monolithic script into lib/, config/, profiles/, and files/ directories - Added error handling with cleanup on failure - Added installation logging to /var/log/arch-install.log - Added username validation
125 lines
3.1 KiB
Bash
125 lines
3.1 KiB
Bash
#!/bin/bash
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# Copyright 2026 Logan Fick
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# https://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# error.sh - Error handling framework
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#
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# Implements robust error handling for the installation process:
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# - Sets up bash strict mode (set -e) and ERR trap
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# - Provides detailed error messages with phase, line number, and failed command
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# - Offers automatic cleanup on failure (unmount filesystems, close LUKS)
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# - Includes retry helper for transient failures
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# Enable strict error handling
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set -e
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# Set up error trap
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trap_errors() {
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trap 'handle_error $? $LINENO "$BASH_COMMAND"' ERR
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}
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# Error handler function
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# Arguments:
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# $1 - exit code
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# $2 - line number
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# $3 - failed command
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handle_error() {
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local exit_code=$1
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local line_number=$2
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local command="$3"
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echo ""
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print_error "Installation failed!"
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print_error "Phase: ${CURRENT_PHASE:-unknown}"
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print_error "Exit code: $exit_code at line $line_number"
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print_error "Command: $command"
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echo ""
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# Offer cleanup
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print "Would you like to attempt cleanup? [y/N]: "
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read -r response
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case "$response" in
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[yY][eE][sS]|[yY])
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cleanup_on_error
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;;
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esac
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exit 1
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}
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# Cleanup function for error recovery
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cleanup_on_error() {
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print_warning "Cleaning up after error..."
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# Unmount filesystems (ignore errors)
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umount -R "${MOUNT_POINT}" 2>/dev/null || true
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# Close LUKS containers (ignore errors)
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cryptsetup close cryptroot 2>/dev/null || true
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cryptsetup close cryptroot-primary 2>/dev/null || true
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cryptsetup close cryptroot-secondary 2>/dev/null || true
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print "Cleanup complete. You may retry the installation."
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}
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# Set the current installation phase for better error messages
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# Arguments:
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# $1 - phase name
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set_phase() {
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CURRENT_PHASE="$1"
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print_step "$1"
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}
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# Run a command with error context
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# Arguments:
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# $1 - description
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# $@ - command and arguments
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safe_run() {
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local description="$1"
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shift
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print " $description..."
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if ! "$@"; then
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print_error "Failed: $description"
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return 1
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fi
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}
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# Retry a command with exponential backoff
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# Arguments:
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# $1 - max attempts
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# $2 - initial delay in seconds
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# $@ - command and arguments
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retry() {
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local max_attempts="$1"
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local delay="$2"
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shift 2
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local attempt=1
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while [ $attempt -le $max_attempts ]; do
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if "$@"; then
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return 0
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fi
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print_warning "Attempt $attempt/$max_attempts failed. Retrying in ${delay}s..."
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sleep "$delay"
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((attempt++))
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((delay *= 2))
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done
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print_error "All $max_attempts attempts failed."
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return 1
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}
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