fix: share runtime env injection for reposync and terminal

internal/utils/runtime_env.go

@@ -0,0 +1,104 @@
+package utils
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/engigu/baihu-panel/internal/constant"
+)
+
+// BuildRuntimeProcessEnv 构造 Baihu 内部可信子进程需要继承的运行时环境变量。
+// 仅包含 Baihu 自己的路径/数据库配置，不包含用户任务环境变量。
+func BuildRuntimeProcessEnv() []string {
+	envs := make([]string, 0, 11)
+
+	configPath := constant.ConfigPath
+	if absConfig, err := filepath.Abs(constant.ConfigPath); err == nil {
+		configPath = absConfig
+	}
+	envs = append(envs, formatEnvVar("BH_CONFIG_PATH", configPath))
+
+	if scriptsDir := ResolveAbsScriptsDir(); strings.TrimSpace(scriptsDir) != "" {
+		envs = append(envs, formatEnvVar("BH_SCRIPTS_DIR", scriptsDir))
+	}
+
+	appendEnvIfSet(&envs, "BH_DB_TYPE", constant.RuntimeDBType)
+	appendEnvIfSet(&envs, "BH_DB_HOST", constant.RuntimeDBHost)
+	if constant.RuntimeDBPort > 0 {
+		envs = append(envs, formatEnvVar("BH_DB_PORT", fmt.Sprintf("%d", constant.RuntimeDBPort)))
+	}
+	appendEnvIfSet(&envs, "BH_DB_USER", constant.RuntimeDBUser)
+	appendEnvIfSet(&envs, "BH_DB_PASSWORD", constant.RuntimeDBPassword)
+	appendEnvIfSet(&envs, "BH_DB_NAME", constant.RuntimeDBName)
+	appendEnvIfSet(&envs, "BH_DB_PATH", constant.RuntimeDBPath)
+	appendEnvIfSet(&envs, "BH_DB_DSN", constant.RuntimeDBDSN)
+	appendEnvIfSet(&envs, "BH_DB_TABLE_PREFIX", constant.RuntimeDBTablePrefix)
+
+	return envs
+}
+
+// BuildShellEnvPrefix 将 KEY=VALUE 环境变量切片转换为 shell 前缀。
+func BuildShellEnvPrefix(envs []string) string {
+	parts := make([]string, 0, len(envs))
+	for _, env := range envs {
+		key, value, ok := strings.Cut(env, "=")
+		if !ok || strings.TrimSpace(key) == "" {
+			continue
+		}
+		parts = append(parts, ShellEnvAssignment(key, value))
+	}
+
+	if len(parts) == 0 {
+		return ""
+	}
+
+	return strings.Join(parts, " ") + " "
+}
+
+// ShellEnvAssignment 生成 shell 可安全使用的 KEY='VALUE' 赋值片段。
+func ShellEnvAssignment(key, value string) string {
+	return key + "='" + strings.ReplaceAll(value, "'", "'\\''") + "'"
+}
+
+// ResolveAbsScriptsDir 解析 Baihu 运行时脚本目录的绝对路径。
+func ResolveAbsScriptsDir() string {
+	if scriptsDir := os.Getenv("BH_SCRIPTS_DIR"); scriptsDir != "" {
+		if filepath.IsAbs(scriptsDir) {
+			return filepath.Clean(scriptsDir)
+		}
+		if absScriptsDir, err := filepath.Abs(scriptsDir); err == nil {
+			return absScriptsDir
+		}
+		return filepath.Clean(scriptsDir)
+	}
+
+	if configPath := os.Getenv("BH_CONFIG_PATH"); configPath != "" {
+		if !filepath.IsAbs(configPath) {
+			if absConfigPath, err := filepath.Abs(configPath); err == nil {
+				configPath = absConfigPath
+			}
+		}
+
+		projectRoot := filepath.Dir(filepath.Dir(configPath))
+		return filepath.Clean(filepath.Join(projectRoot, constant.ScriptsWorkDir))
+	}
+
+	if absScriptsDir, err := filepath.Abs(constant.ScriptsWorkDir); err == nil {
+		return absScriptsDir
+	}
+
+	return filepath.Clean(constant.ScriptsWorkDir)
+}
+
+func appendEnvIfSet(envs *[]string, key, value string) {
+	if strings.TrimSpace(value) == "" {
+		return
+	}
+	*envs = append(*envs, formatEnvVar(key, value))
+}
+
+func formatEnvVar(key, value string) string {
+	return fmt.Sprintf("%s=%s", key, value)
+}