gocron/modules/app/app.go

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package app
import (
"os"
"runtime"
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"github.com/ouqiang/cron-scheduler/modules/utils"
"github.com/ouqiang/cron-scheduler/modules/crontask"
"github.com/ouqiang/cron-scheduler/models"
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"github.com/ouqiang/cron-scheduler/modules/ansible"
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"github.com/ouqiang/cron-scheduler/service"
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)
var (
AppDir string // 应用根目录
ConfDir string // 配置目录
LogDir string // 日志目录
DataDir string // 数据目录存放session文件等
AppConfig string // 应用配置文件
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AnsibleHosts string // ansible hosts文件
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Installed bool // 应用是否安装过
)
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func InitEnv() {
CheckEnv()
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wd, err := os.Getwd()
if err != nil {
panic(err)
}
AppDir = wd
ConfDir = AppDir + "/conf"
LogDir = AppDir + "/log"
DataDir = AppDir + "/data"
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AppConfig = ConfDir + "/app.ini"
AnsibleHosts = ConfDir + "/ansible_hosts.ini"
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checkDirExists(ConfDir, LogDir, DataDir)
// ansible配置文件目录
os.Setenv("ANSIBLE_CONFIG", ConfDir)
Installed = IsInstalled()
if Installed {
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InitDb()
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InitResource()
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}
}
// 判断应用是否安装过
func IsInstalled() bool {
_, err := os.Stat(ConfDir + "/install.lock")
if os.IsNotExist(err) {
return false
}
return true
}
// 检测环境
func CheckEnv() {
// ansible不支持安装在windows上, windows只能作为被控机
if runtime.GOOS == "windows" {
panic("不支持在windows上运行")
}
_, err := utils.ExecShell("ansible", "--version")
if err != nil {
panic(err)
}
_, err = utils.ExecShell("ansible-playbook", "--version")
if err != nil {
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panic(err)
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}
}
// 创建安装锁文件
func CreateInstallLock() error {
_, err := os.Create(ConfDir + "/install.lock")
if err != nil {
utils.RecordLog("创建安装锁文件失败")
}
return err
}
// 初始化资源
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func InitResource() {
// 初始化ansible Hosts
ansible.DefaultHosts = ansible.NewHosts(AnsibleHosts)
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// 初始化定时任务
crontask.DefaultCronTask = crontask.NewCronTask()
serviceTask := new(service.Task)
serviceTask.Initialize()
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}
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// 初始化DB
func InitDb() {
models.Db = models.CreateDb(AppConfig)
}
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// 检测目录是否存在
func checkDirExists(path... string) {
for _, value := range(path) {
_, err := os.Stat(value)
if os.IsNotExist(err) {
panic(value + "目录不存在")
}
if os.IsPermission(err) {
panic(value + "目录无权限操作")
}
}
}