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gitea-migration/lib/common.sh

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#!/usr/bin/env bash
# =============================================================================
# lib/common.sh — Shared functions for Gitea Migration Toolkit
# Source this file in every script: source "$(dirname "$0")/lib/common.sh"
# =============================================================================
# This file defines functions only. No side effects at source time.
# ---------------------------------------------------------------------------
# Colors (only if stderr is a terminal)
# ---------------------------------------------------------------------------
if [[ -t 2 ]]; then
_C_RESET='\033[0m'
_C_RED='\033[0;31m'
_C_GREEN='\033[0;32m'
_C_YELLOW='\033[0;33m'
_C_BLUE='\033[0;34m'
_C_BOLD='\033[1m'
else
_C_RESET='' _C_RED='' _C_GREEN='' _C_YELLOW='' _C_BLUE='' _C_BOLD=''
fi
# ---------------------------------------------------------------------------
# Logging — all output to stderr so stdout stays clean for data (JSON, etc.)
# ---------------------------------------------------------------------------
log_info() {
printf '%b[INFO]%b %s\n' "$_C_BLUE" "$_C_RESET" "$*" >&2
}
log_warn() {
printf '%b[WARN]%b %s\n' "$_C_YELLOW" "$_C_RESET" "$*" >&2
}
log_error() {
printf '%b[ERROR]%b %s\n' "$_C_RED" "$_C_RESET" "$*" >&2
}
log_success() {
printf '%b[OK]%b %s\n' "$_C_GREEN" "$_C_RESET" "$*" >&2
}
log_step() {
local step_num="$1"; shift
printf ' %b[%s]%b %s\n' "$_C_BOLD" "$step_num" "$_C_RESET" "$*" >&2
}
phase_header() {
local num="$1" name="$2"
printf '\n%b=== Phase %s: %s ===%b\n\n' "$_C_BOLD" "$num" "$name" "$_C_RESET" >&2
}
# ---------------------------------------------------------------------------
# Environment
# ---------------------------------------------------------------------------
# Resolve the project root (directory containing .env / .env.example)
_project_root() {
local dir
dir="$(cd "$(dirname "${BASH_SOURCE[1]:-${BASH_SOURCE[0]}}")/.." && pwd)"
# Walk up until we find .env or .env.example
while [[ "$dir" != "/" ]]; do
if [[ -f "$dir/.env" ]] || [[ -f "$dir/.env.example" ]]; then
printf '%s' "$dir"
return 0
fi
dir="$(dirname "$dir")"
done
# Fallback: script's parent dir
cd "$(dirname "${BASH_SOURCE[1]:-${BASH_SOURCE[0]}}")/.." && pwd
}
# Source .env and export all variables.
# Uses set -a/+a to auto-export every variable defined in the file,
# making them available to child processes (envsubst, ssh, etc.).
load_env() {
local env_file
env_file="$(_project_root)/.env"
if [[ ! -f "$env_file" ]]; then
log_error ".env file not found at $env_file"
log_error "Copy .env.example to .env and populate values."
return 1
fi
# Parse KEY=VALUE lines safely without executing them as bash.
# Using 'source' on .env is dangerous: unquoted values with spaces
# (e.g. GITEA_INSTANCE_NAME=PID Git) cause the second word to be
# executed as a command. This parser handles comments, blank lines,
# and values with spaces, quotes, and special characters.
local line key value
while IFS= read -r line || [[ -n "$line" ]]; do
# Skip blank lines and comments
[[ -z "$line" || "$line" == \#* ]] && continue
# Must contain = to be a valid assignment
[[ "$line" == *=* ]] || continue
key="${line%%=*}"
value="${line#*=}"
# Strip inline comments: remove everything from '# ' onward (hash + space).
# The space after # distinguishes comments from # in URLs/passwords/tokens.
# Handles both 'value # comment' and 'value# comment' formats.
value="${value%%# *}"
# Strip surrounding quotes (single or double) if present
if [[ "$value" =~ ^\"(.*)\"$ ]] || [[ "$value" =~ ^\'(.*)\'$ ]]; then
value="${BASH_REMATCH[1]}"
fi
# Strip trailing whitespace
value="${value%"${value##*[! ]}"}"
export "$key=$value"
done < "$env_file"
}
save_env_var() {
local key="$1" value="$2"
local env_file
env_file="$(_project_root)/.env"
if [[ ! -f "$env_file" ]]; then
log_error ".env file not found at $env_file"
return 1
fi
# Escape special characters in value for sed (delimiter is |)
local escaped_value
escaped_value=$(printf '%s' "$value" | sed 's/[&/\|]/\\&/g')
if grep -q "^${key}=" "$env_file"; then
# Replace existing line — match KEY= followed by anything (value + optional comment)
sed -i.bak "s|^${key}=.*|${key}=${escaped_value}|" "$env_file"
rm -f "${env_file}.bak"
else
# Append new line
printf '%s=%s\n' "$key" "$value" >> "$env_file"
fi
# Also export it in current shell
export "${key}=${value}"
}
require_vars() {
local var
for var in "$@"; do
if [[ -z "${!var:-}" ]]; then
log_error "Missing required var: $var"
return 1
fi
done
}
# ---------------------------------------------------------------------------
# .env value validators — shared by configure_env.sh, preflight.sh,
# bitwarden_to_env.sh. Each returns 0 (valid) or 1 (invalid).
# ---------------------------------------------------------------------------
validate_ip() {
[[ "$1" =~ ^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$ ]]
}
validate_port() {
[[ "$1" =~ ^[0-9]+$ ]] && [[ "$1" -ge 1 ]] && [[ "$1" -le 65535 ]]
}
validate_email() {
[[ "$1" == *@* ]]
}
validate_path() {
[[ "$1" == /* ]]
}
validate_url() {
[[ "$1" =~ ^https?:// ]]
}
validate_bool() {
[[ "$1" == "true" ]] || [[ "$1" == "false" ]]
}
validate_integer() {
[[ "$1" =~ ^[0-9]+$ ]]
}
validate_nonempty() {
[[ -n "$1" ]]
}
validate_password() {
[[ ${#1} -ge 8 ]]
}
validate_tls_mode() {
[[ "$1" == "cloudflare" ]] || [[ "$1" == "existing" ]]
}
validate_db_type() {
[[ "$1" == "sqlite3" ]] || [[ "$1" == "mysql" ]] || [[ "$1" == "postgres" ]] || [[ "$1" == "mssql" ]]
}
validate_positive_integer() {
[[ "$1" =~ ^[1-9][0-9]*$ ]]
}
validate_optional_path() {
# shellcheck disable=SC2088 # tilde intentionally stored as literal string
[[ -z "$1" ]] || [[ "$1" == /* ]] || [[ "$1" == "~/"* ]]
}
# ---------------------------------------------------------------------------
# .env format validation — validate_env()
# Checks every .env variable against its expected type.
# Requires .env to be loaded first (variables in environment).
# Returns 0 if all pass, 1 if any fail. Does NOT exit — caller decides.
# ---------------------------------------------------------------------------
# Parallel arrays: variable name → validator type (bash 3.2 compatible).
# Order matches configure_env.sh prompt_var calls.
_ENV_VAR_NAMES=(
UNRAID_IP UNRAID_SSH_USER UNRAID_SSH_PORT UNRAID_GITEA_DATA_PATH
FEDORA_IP FEDORA_SSH_USER FEDORA_SSH_PORT FEDORA_GITEA_DATA_PATH
UNRAID_MACVLAN_PARENT UNRAID_MACVLAN_SUBNET UNRAID_MACVLAN_GATEWAY
UNRAID_MACVLAN_IP_RANGE UNRAID_GITEA_IP UNRAID_CADDY_IP
FEDORA_MACVLAN_PARENT FEDORA_MACVLAN_SUBNET FEDORA_MACVLAN_GATEWAY
FEDORA_MACVLAN_IP_RANGE FEDORA_GITEA_IP
GITEA_ADMIN_USER GITEA_ADMIN_PASSWORD GITEA_ADMIN_EMAIL
GITEA_ORG_NAME GITEA_INSTANCE_NAME GITEA_DB_TYPE GITEA_VERSION ACT_RUNNER_VERSION
GITEA_DOMAIN GITEA_INTERNAL_URL
GITEA_BACKUP_INTERNAL_URL GITEA_BACKUP_MIRROR_INTERVAL
BACKUP_STORAGE_PATH BACKUP_RETENTION_COUNT
RUNNER_DEFAULT_IMAGE
GITHUB_USERNAME GITHUB_TOKEN
REPO_NAMES
MIGRATE_ISSUES MIGRATE_LABELS MIGRATE_MILESTONES MIGRATE_WIKI
MIGRATION_POLL_INTERVAL_SEC MIGRATION_POLL_TIMEOUT_SEC
GITHUB_MIRROR_INTERVAL
TLS_MODE CADDY_DOMAIN CADDY_DATA_PATH
PROTECTED_BRANCH REQUIRE_PR_REVIEW REQUIRED_APPROVALS
SEMGREP_VERSION TRIVY_VERSION GITLEAKS_VERSION SECURITY_FAIL_ON_ERROR
)
_ENV_VAR_TYPES=(
ip nonempty port path
ip nonempty port path
nonempty nonempty ip
nonempty ip ip
nonempty nonempty ip
nonempty ip
nonempty password email
nonempty nonempty db_type nonempty nonempty
nonempty url
url nonempty
path integer
nonempty
nonempty nonempty
nonempty
bool bool bool bool
positive_integer positive_integer
nonempty
tls_mode nonempty path
nonempty bool integer
nonempty nonempty nonempty bool
)
# Conditional variables — validated only when TLS_MODE matches.
_ENV_CONDITIONAL_TLS_NAMES=(CLOUDFLARE_API_TOKEN SSL_CERT_PATH SSL_KEY_PATH)
_ENV_CONDITIONAL_TLS_TYPES=(nonempty path path)
_ENV_CONDITIONAL_TLS_WHEN=( cloudflare existing existing)
# Conditional variables — validated only when GITEA_DB_TYPE is NOT sqlite3.
_ENV_CONDITIONAL_DB_NAMES=(GITEA_DB_HOST GITEA_DB_PORT GITEA_DB_NAME GITEA_DB_USER GITEA_DB_PASSWD)
_ENV_CONDITIONAL_DB_TYPES=(nonempty port nonempty nonempty password)
# Optional variables — validated only when non-empty (never required).
_ENV_OPTIONAL_NAMES=(UNRAID_SSH_KEY FEDORA_SSH_KEY LOCAL_REGISTRY UNRAID_DB_IP FEDORA_DB_IP)
_ENV_OPTIONAL_TYPES=(optional_path optional_path nonempty ip ip)
# Human-readable format hints for error messages.
_validator_hint() {
case "$1" in
ip) echo "expected: x.x.x.x" ;;
port) echo "expected: 1-65535" ;;
email) echo "must contain @" ;;
path) echo "must start with /" ;;
optional_path) echo "must start with / or ~/ (or be empty)" ;;
url) echo "must start with http:// or https://" ;;
bool) echo "must be true or false" ;;
integer) echo "must be a number" ;;
positive_integer) echo "must be a positive integer (>= 1)" ;;
nonempty) echo "cannot be empty" ;;
password) echo "must be at least 8 characters" ;;
tls_mode) echo "must be cloudflare or existing" ;;
db_type) echo "must be sqlite3, mysql, postgres, or mssql" ;;
optional) echo "any value or empty" ;;
*) echo "invalid" ;;
esac
}
validate_env() {
local errors=0
local i var_name var_type value
# Validate main variables
for ((i = 0; i < ${#_ENV_VAR_NAMES[@]}; i++)); do
var_name="${_ENV_VAR_NAMES[$i]}"
var_type="${_ENV_VAR_TYPES[$i]}"
value="${!var_name:-}"
if [[ -z "$value" ]]; then
log_error "$var_name is empty ($(_validator_hint "$var_type"))"
errors=$((errors + 1))
elif ! "validate_${var_type}" "$value"; then
log_error "$var_name='$value' ($(_validator_hint "$var_type"))"
errors=$((errors + 1))
fi
done
# Validate conditional variables (TLS_MODE-dependent)
local tls_mode="${TLS_MODE:-}"
for ((i = 0; i < ${#_ENV_CONDITIONAL_TLS_NAMES[@]}; i++)); do
var_name="${_ENV_CONDITIONAL_TLS_NAMES[$i]}"
var_type="${_ENV_CONDITIONAL_TLS_TYPES[$i]}"
local required_when="${_ENV_CONDITIONAL_TLS_WHEN[$i]}"
if [[ "$tls_mode" != "$required_when" ]]; then
continue
fi
value="${!var_name:-}"
if [[ -z "$value" ]]; then
log_error "$var_name is empty (required when TLS_MODE=$required_when, $(_validator_hint "$var_type"))"
errors=$((errors + 1))
elif ! "validate_${var_type}" "$value"; then
log_error "$var_name='$value' ($(_validator_hint "$var_type"))"
errors=$((errors + 1))
fi
done
# Validate conditional variables (DB_TYPE-dependent — required when NOT sqlite3)
local db_type="${GITEA_DB_TYPE:-sqlite3}"
if [[ "$db_type" != "sqlite3" ]]; then
for ((i = 0; i < ${#_ENV_CONDITIONAL_DB_NAMES[@]}; i++)); do
var_name="${_ENV_CONDITIONAL_DB_NAMES[$i]}"
var_type="${_ENV_CONDITIONAL_DB_TYPES[$i]}"
value="${!var_name:-}"
if [[ -z "$value" ]]; then
log_error "$var_name is empty (required when GITEA_DB_TYPE=$db_type, $(_validator_hint "$var_type"))"
errors=$((errors + 1))
elif ! "validate_${var_type}" "$value"; then
log_error "$var_name='$value' ($(_validator_hint "$var_type"))"
errors=$((errors + 1))
fi
done
fi
# Validate optional variables (only when non-empty)
for ((i = 0; i < ${#_ENV_OPTIONAL_NAMES[@]}; i++)); do
var_name="${_ENV_OPTIONAL_NAMES[$i]}"
var_type="${_ENV_OPTIONAL_TYPES[$i]}"
value="${!var_name:-}"
# Skip if empty — these are optional
[[ -z "$value" ]] && continue
if ! "validate_${var_type}" "$value"; then
log_error "$var_name='$value' ($(_validator_hint "$var_type"))"
errors=$((errors + 1))
fi
done
if [[ $errors -gt 0 ]]; then
log_error "$errors .env variable(s) failed format validation"
return 1
fi
return 0
}
# ---------------------------------------------------------------------------
# OS compatibility checks
# ---------------------------------------------------------------------------
# Verify the local machine is running the expected OS.
# Usage: require_local_os "Darwin" "This script requires macOS"
# os_type: "Darwin" for macOS, "Linux" for Linux
# Checks `uname -s` against the expected value.
require_local_os() {
local expected="$1" msg="${2:-This script requires ${1}}"
local actual
actual="$(uname -s)"
if [[ "$actual" != "$expected" ]]; then
log_error "$msg"
log_error "Detected OS: $actual (expected: $expected)"
return 1
fi
}
# Verify a remote machine (via SSH) is running the expected OS.
# Usage: require_remote_os "UNRAID" "Linux" "Unraid must be a Linux machine"
# host_key: SSH host key (UNRAID, FEDORA) — uses ssh_exec
# os_type: expected `uname -s` output
require_remote_os() {
local host_key="$1" expected="$2" msg="${3:-Remote host $1 must be running $2}"
local actual
actual="$(ssh_exec "$host_key" "uname -s" 2>/dev/null)" || {
log_error "Cannot determine OS on ${host_key} (SSH failed)"
return 1
}
if [[ "$actual" != "$expected" ]]; then
log_error "$msg"
log_error "${host_key} detected OS: $actual (expected: $expected)"
return 1
fi
}
# Check if a remote host has a specific package manager available.
# Usage: require_remote_pkg_manager "FEDORA" "dnf" "Fedora requires dnf"
require_remote_pkg_manager() {
local host_key="$1" pkg_mgr="$2"
local msg="${3:-${host_key} requires ${pkg_mgr}}"
if ! ssh_exec "$host_key" "command -v $pkg_mgr" &>/dev/null; then
log_error "$msg"
log_error "${host_key} does not have '${pkg_mgr}' — is this the right machine?"
return 1
fi
}
# ---------------------------------------------------------------------------
# SSH
# ---------------------------------------------------------------------------
# Execute a command on a remote host via SSH.
# Uses indirect variable expansion: ssh_exec "UNRAID" "ls" reads
# UNRAID_IP, UNRAID_SSH_USER, UNRAID_SSH_PORT from the environment.
# This pattern avoids passing connection details to every function call.
ssh_exec() {
local host_key="$1"; shift
local cmd="$*"
# Indirect expansion: ${!ip_var} dereferences the variable named by $ip_var
local ip_var="${host_key}_IP"
local user_var="${host_key}_SSH_USER"
local port_var="${host_key}_SSH_PORT"
local key_var="${host_key}_SSH_KEY"
local ip="${!ip_var:-}"
local user="${!user_var:-}"
local port="${!port_var:-22}"
local key="${!key_var:-}"
if [[ -z "$ip" ]] || [[ -z "$user" ]]; then
log_error "SSH config incomplete for $host_key: ${ip_var}=${ip:-<empty>}, ${user_var}=${user:-<empty>}"
return 1
fi
# ConnectTimeout: fail fast if host is unreachable (don't hang for 60s)
# StrictHostKeyChecking=accept-new: auto-accept new hosts but reject changed keys
# BatchMode=yes: never prompt for password (fail if key auth doesn't work)
# ${key:+-i "$key"}: pass -i only when SSH_KEY is set (otherwise SSH uses default keys from ~/.ssh/id_*)
ssh ${key:+-i "$key"} \
-o ConnectTimeout=10 \
-o StrictHostKeyChecking=accept-new \
-o BatchMode=yes \
-p "$port" \
"${user}@${ip}" \
"$cmd"
}
ssh_check() {
local host_key="$1"
ssh_exec "$host_key" "true" 2>/dev/null
}
scp_to() {
local host_key="$1" src="$2" dst="$3"
local ip_var="${host_key}_IP"
local user_var="${host_key}_SSH_USER"
local port_var="${host_key}_SSH_PORT"
local key_var="${host_key}_SSH_KEY"
local ip="${!ip_var:-}"
local user="${!user_var:-}"
local port="${!port_var:-22}"
local key="${!key_var:-}"
if [[ -z "$ip" ]] || [[ -z "$user" ]]; then
log_error "SCP config incomplete for $host_key"
return 1
fi
scp ${key:+-i "$key"} \
-o ConnectTimeout=10 \
-o StrictHostKeyChecking=accept-new \
-o BatchMode=yes \
-P "$port" \
"$src" "${user}@${ip}:${dst}"
}
# ---------------------------------------------------------------------------
# API wrappers — return JSON on stdout, logs go to stderr
# ---------------------------------------------------------------------------
# Internal API call helper. Writes response to a tmpfile so we can separate
# the HTTP status code (via curl -w) from the response body. This ensures
# JSON output goes to stdout and error messages go to stderr — callers can
# pipe JSON through jq without log noise contaminating the output.
_api_call() {
local base_url="$1" token="$2" method="$3" path="$4" data="${5:-}"
local http_code
local tmpfile
tmpfile=$(mktemp)
local -a curl_args=(
-s
-X "$method"
-H "Authorization: token ${token}"
-H "Content-Type: application/json"
-H "Accept: application/json"
-o "$tmpfile"
-w "%{http_code}"
)
if [[ -n "$data" ]]; then
curl_args+=(-d "$data")
fi
http_code=$(curl "${curl_args[@]}" "${base_url}${path}") || {
log_error "curl failed for $method ${base_url}${path}"
rm -f "$tmpfile"
return 1
}
if [[ "$http_code" -ge 400 ]]; then
log_error "API $method ${path} returned HTTP ${http_code}"
log_error "Response: $(cat "$tmpfile")"
rm -f "$tmpfile"
return 1
fi
cat "$tmpfile"
rm -f "$tmpfile"
}
gitea_api() {
local method="$1" path="$2" data="${3:-}"
_api_call "${GITEA_INTERNAL_URL}/api/v1" "${GITEA_ADMIN_TOKEN}" "$method" "$path" "$data"
}
gitea_backup_api() {
local method="$1" path="$2" data="${3:-}"
_api_call "${GITEA_BACKUP_INTERNAL_URL}/api/v1" "${GITEA_BACKUP_ADMIN_TOKEN}" "$method" "$path" "$data"
}
github_api() {
local method="$1" path="$2" data="${3:-}"
_api_call "https://api.github.com" "${GITHUB_TOKEN}" "$method" "$path" "$data"
}
# ---------------------------------------------------------------------------
# Templates
# ---------------------------------------------------------------------------
render_template() {
local src="$1" dest="$2" vars="${3:-}"
if [[ ! -f "$src" ]]; then
log_error "Template not found: $src"
return 1
fi
if [[ -z "$vars" ]]; then
log_error "render_template requires an explicit variable list (third argument)"
log_error "Example: render_template src dest '\${VAR1} \${VAR2}'"
return 1
fi
envsubst "$vars" < "$src" > "$dest"
}
# ---------------------------------------------------------------------------
# Template block helpers — conditional block stripping and DB-specific vars
# ---------------------------------------------------------------------------
# Strip conditional blocks from a rendered file.
# Usage: strip_template_block <file> <start_marker> <end_marker>
strip_template_block() {
local file="$1" start="$2" end="$3"
sed -i.bak "/${start}/,/${end}/d" "$file"
rm -f "${file}.bak"
}
# Set DB-specific variables for docker-compose template rendering.
# Requires GITEA_DB_TYPE, GITEA_DB_USER, GITEA_DB_PASSWD, GITEA_DB_NAME in env.
# Exports: DB_DOCKER_IMAGE, DB_ENV_VARS, DB_HEALTHCHECK, DB_DATA_DIR
set_db_vars() {
case "${GITEA_DB_TYPE}" in
postgres)
DB_DOCKER_IMAGE="postgres:16-alpine"
DB_ENV_VARS=" - POSTGRES_USER=${GITEA_DB_USER}
- POSTGRES_PASSWORD=${GITEA_DB_PASSWD}
- POSTGRES_DB=${GITEA_DB_NAME}"
DB_HEALTHCHECK='["CMD-SHELL", "pg_isready -U '"${GITEA_DB_USER}"'"]'
DB_DATA_DIR="postgresql/data"
;;
mysql)
DB_DOCKER_IMAGE="mysql:8.0"
DB_ENV_VARS=" - MYSQL_ROOT_PASSWORD=${GITEA_DB_PASSWD}
- MYSQL_DATABASE=${GITEA_DB_NAME}
- MYSQL_USER=${GITEA_DB_USER}
- MYSQL_PASSWORD=${GITEA_DB_PASSWD}"
DB_HEALTHCHECK='["CMD", "mysqladmin", "ping", "-h", "localhost"]'
DB_DATA_DIR="mysql"
;;
mssql)
DB_DOCKER_IMAGE="mcr.microsoft.com/mssql/server:2022-latest"
DB_ENV_VARS=" - ACCEPT_EULA=Y
- SA_PASSWORD=${GITEA_DB_PASSWD}"
# shellcheck disable=SC2089,SC2016
DB_HEALTHCHECK='["CMD-SHELL", "/opt/mssql-tools18/bin/sqlcmd -S localhost -U sa -P '"'"'${GITEA_DB_PASSWD}'"'"' -Q \"SELECT 1\" -C -N"]'
DB_DATA_DIR="mssql/data"
;;
esac
# shellcheck disable=SC2090
export DB_DOCKER_IMAGE DB_ENV_VARS DB_HEALTHCHECK DB_DATA_DIR
}
# ---------------------------------------------------------------------------
# Polling / waiting
# ---------------------------------------------------------------------------
wait_for_http() {
local url="$1" max_secs="${2:-60}"
local elapsed=0
log_info "Waiting for HTTP 200 at ${url} (timeout: ${max_secs}s)..."
while [[ $elapsed -lt $max_secs ]]; do
if curl -sf -o /dev/null "$url" 2>/dev/null; then
log_success "HTTP 200 at ${url} (after ${elapsed}s)"
return 0
fi
sleep 2
elapsed=$((elapsed + 2))
done
log_error "Timeout waiting for ${url} after ${max_secs}s"
return 1
}
# ---------------------------------------------------------------------------
# Version checking
# ---------------------------------------------------------------------------
# Compare two semver-like version strings (major.minor or major.minor.patch).
# Returns 0 if $1 >= $2, 1 otherwise.
# Works by comparing each numeric component left to right.
_version_gte() {
local ver="$1" min="$2"
# Split on dots into arrays
local IFS='.'
# shellcheck disable=SC2206
local -a v=($ver)
# shellcheck disable=SC2206
local -a m=($min)
local max_parts=${#m[@]}
local i
for ((i = 0; i < max_parts; i++)); do
local vp="${v[$i]:-0}"
local mp="${m[$i]:-0}"
if (( vp > mp )); then return 0; fi
if (( vp < mp )); then return 1; fi
done
return 0
}
# Extract the first semver-like string (X.Y or X.Y.Z) from arbitrary output.
# Handles common patterns like "jq-1.7.1", "Docker version 24.0.7", "v2.29.1", etc.
_extract_version() {
local raw="$1"
# Match the first occurrence of digits.digits (optionally .digits more)
if [[ "$raw" =~ ([0-9]+\.[0-9]+(\.[0-9]+)*) ]]; then
printf '%s' "${BASH_REMATCH[1]}"
else
printf ''
fi
}
# Check that a local command meets a minimum version.
# Usage: check_min_version "docker" "docker --version" "20.0"
# tool_name: display name for log messages
# version_cmd: command to run (must output version somewhere in its output)
# min_version: minimum required version (e.g. "1.6", "20.0.0")
# Returns 0 if version >= min, 1 otherwise.
check_min_version() {
local tool_name="$1" version_cmd="$2" min_version="$3"
local raw_output
raw_output=$(eval "$version_cmd" 2>&1) || {
log_error "$tool_name: failed to run '$version_cmd'"
return 1
}
local actual
actual=$(_extract_version "$raw_output")
if [[ -z "$actual" ]]; then
log_error "$tool_name: could not parse version from: $raw_output"
return 1
fi
if _version_gte "$actual" "$min_version"; then
log_success "$tool_name $actual (>= $min_version)"
return 0
else
log_error "$tool_name $actual is below minimum $min_version"
return 1
fi
}
# Same as check_min_version but runs the command on a remote host via SSH.
# Usage: check_remote_min_version "UNRAID" "docker" "docker --version" "20.0"
check_remote_min_version() {
local host_key="$1" tool_name="$2" version_cmd="$3" min_version="$4"
local raw_output
raw_output=$(ssh_exec "$host_key" "$version_cmd" 2>&1) || {
log_error "$tool_name on ${host_key}: failed to run '$version_cmd'"
return 1
}
local actual
actual=$(_extract_version "$raw_output")
if [[ -z "$actual" ]]; then
log_error "$tool_name on ${host_key}: could not parse version from: $raw_output"
return 1
fi
if _version_gte "$actual" "$min_version"; then
log_success "$tool_name $actual on ${host_key} (>= $min_version)"
return 0
else
log_error "$tool_name $actual on ${host_key} is below minimum $min_version"
return 1
fi
}
# ---------------------------------------------------------------------------
# INI file parsing — used by runners.conf (INI-style sections)
# ---------------------------------------------------------------------------
# List all [section] names from an INI file.
# Usage: ini_list_sections "runners.conf"
# Outputs one section name per line (without brackets).
ini_list_sections() {
local file="$1"
if [[ ! -f "$file" ]]; then
return 1
fi
sed -n 's/^[[:space:]]*\[\([^]]*\)\].*/\1/p' "$file"
}
# Get a value from an INI file by section and key.
# Usage: ini_get "runners.conf" "unraid-runner" "host" "default_value"
# Returns the value (stripped of inline comments and whitespace), or
# the default if key not found. Exit code 1 if section not found.
ini_get() {
local file="$1" section="$2" key="$3" default="${4:-}"
if [[ ! -f "$file" ]]; then
printf '%s' "$default"
return 1
fi
local in_section=false
local line k v
while IFS= read -r line; do
# Strip leading/trailing whitespace
line="${line#"${line%%[![:space:]]*}"}"
line="${line%"${line##*[![:space:]]}"}"
# Skip empty lines and comments
[[ -z "$line" ]] && continue
[[ "$line" == \#* ]] && continue
# Check for section header
if [[ "$line" =~ ^\[([^]]+)\] ]]; then
if [[ "${BASH_REMATCH[1]}" == "$section" ]]; then
in_section=true
elif $in_section; then
# Moved past our section without finding the key
break
fi
continue
fi
# Parse key = value lines within our section
if $in_section && [[ "$line" =~ ^([^=]+)=(.*) ]]; then
k="${BASH_REMATCH[1]}"
v="${BASH_REMATCH[2]}"
# Trim whitespace from key and value
k="${k#"${k%%[![:space:]]*}"}"
k="${k%"${k##*[![:space:]]}"}"
v="${v#"${v%%[![:space:]]*}"}"
v="${v%"${v##*[![:space:]]}"}"
# Strip inline comment (# preceded by whitespace)
v="${v%%[[:space:]]#*}"
# Trim trailing whitespace again after comment strip
v="${v%"${v##*[![:space:]]}"}"
if [[ "$k" == "$key" ]]; then
printf '%s' "$v"
return 0
fi
fi
done < "$file"
printf '%s' "$default"
if $in_section; then
return 0 # section found, key missing — return default
fi
return 1 # section not found
}
# Set a value in an INI file (create section/key if missing).
# Usage: ini_set "runners.conf" "unraid-runner" "host" "unraid"
ini_set() {
local file="$1" section="$2" key="$3" value="$4"
if [[ ! -f "$file" ]]; then
# Create file with section and key
printf '[%s]\n%s = %s\n' "$section" "$key" "$value" > "$file"
return 0
fi
local tmpfile
tmpfile=$(mktemp)
local in_section=false
local key_written=false
local section_exists=false
while IFS= read -r line; do
# Check for section header
if [[ "$line" =~ ^[[:space:]]*\[([^]]+)\] ]]; then
local found_section="${BASH_REMATCH[1]}"
if $in_section && ! $key_written; then
# Leaving our section without writing key — append it
printf '%s = %s\n' "$key" "$value" >> "$tmpfile"
key_written=true
fi
if [[ "$found_section" == "$section" ]]; then
in_section=true
section_exists=true
else
in_section=false
fi
printf '%s\n' "$line" >> "$tmpfile"
continue
fi
# Replace existing key within our section
if $in_section && ! $key_written; then
local stripped="${line#"${line%%[![:space:]]*}"}"
if [[ "$stripped" =~ ^${key}[[:space:]]*= ]]; then
printf '%s = %s\n' "$key" "$value" >> "$tmpfile"
key_written=true
continue
fi
fi
printf '%s\n' "$line" >> "$tmpfile"
done < "$file"
# Handle end-of-file cases
if $in_section && ! $key_written; then
printf '%s = %s\n' "$key" "$value" >> "$tmpfile"
elif ! $section_exists; then
printf '\n[%s]\n%s = %s\n' "$section" "$key" "$value" >> "$tmpfile"
fi
mv "$tmpfile" "$file"
}
# ---------------------------------------------------------------------------
# Install manifest — tracks what each setup script installs for rollback
# ---------------------------------------------------------------------------
# Manifest files live in $PROJECT_ROOT/.manifests/<host>.manifest
# Each line: TYPE|TARGET|DETAILS
# Types:
# brew_pkg — Homebrew package on macOS (TARGET=package_name)
# dnf_pkg — DNF package on Fedora (TARGET=package_name)
# static_bin — Static binary installed to a path (TARGET=path)
# docker_group — User added to docker group (TARGET=username)
# systemd_svc — Systemd service enabled (TARGET=service_name)
# xcode_cli — Xcode CLI Tools installed (TARGET=xcode-select)
# directory — Directory created (TARGET=path)
_manifest_dir() {
printf '%s/.manifests' "$(_project_root)"
}
# Initialize manifest directory and file for a host.
# Usage: manifest_init "macbook"
manifest_init() {
local host="$1"
local dir
dir="$(_manifest_dir)"
mkdir -p "$dir"
local file="${dir}/${host}.manifest"
if [[ ! -f "$file" ]]; then
printf '# Install manifest for %s — created %s\n' "$host" "$(date -u +%Y-%m-%dT%H:%M:%SZ)" > "$file"
fi
}
# Record an action in the manifest. Skips duplicates.
# Usage: manifest_record "macbook" "brew_pkg" "jq"
# manifest_record "unraid" "static_bin" "/usr/local/bin/jq"
manifest_record() {
local host="$1" action_type="$2" target="$3" details="${4:-}"
local file
file="$(_manifest_dir)/${host}.manifest"
# Ensure manifest file exists
manifest_init "$host"
local entry="${action_type}|${target}|${details}"
# Skip if already recorded
if grep -qF "$entry" "$file" 2>/dev/null; then
return 0
fi
printf '%s\n' "$entry" >> "$file"
}
# Read all entries from a manifest (skipping comments).
# Usage: manifest_entries "macbook"
# Outputs lines to stdout: TYPE|TARGET|DETAILS
manifest_entries() {
local host="$1"
local file
file="$(_manifest_dir)/${host}.manifest"
if [[ ! -f "$file" ]]; then
return 0
fi
grep -v '^#' "$file" | grep -v '^$' || true
}
# Remove the manifest file for a host (after successful cleanup).
# Usage: manifest_clear "macbook"
manifest_clear() {
local host="$1"
local file
file="$(_manifest_dir)/${host}.manifest"
rm -f "$file"
}