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gitea/cmd/doctor.go
wxiaoguang 2cdf260f42
Refactor path & config system (#25330)
# The problem

There were many "path tricks":

* By default, Gitea uses its program directory as its work path
* Gitea tries to use the "work path" to guess its "custom path" and
"custom conf (app.ini)"
* Users might want to use other directories as work path
* The non-default work path should be passed to Gitea by GITEA_WORK_DIR
or "--work-path"
* But some Gitea processes are started without these values
    * The "serv" process started by OpenSSH server
    * The CLI sub-commands started by site admin
* The paths are guessed by SetCustomPathAndConf again and again
* The default values of "work path / custom path / custom conf" can be
changed when compiling

# The solution

* Use `InitWorkPathAndCommonConfig` to handle these path tricks, and use
test code to cover its behaviors.
* When Gitea's web server runs, write the WORK_PATH to "app.ini", this
value must be the most correct one, because if this value is not right,
users would find that the web UI doesn't work and then they should be
able to fix it.
* Then all other sub-commands can use the WORK_PATH in app.ini to
initialize their paths.
* By the way, when Gitea starts for git protocol, it shouldn't output
any log, otherwise the git protocol gets broken and client blocks
forever.

The "work path" priority is: WORK_PATH in app.ini > cmd arg --work-path
> env var GITEA_WORK_DIR > builtin default

The "app.ini" searching order is: cmd arg --config > cmd arg "work path
/ custom path" > env var "work path / custom path" > builtin default


## ⚠️ BREAKING

If your instance's "work path / custom path / custom conf" doesn't meet
the requirements (eg: work path must be absolute), Gitea will report a
fatal error and exit. You need to set these values according to the
error log.



----

Close #24818
Close #24222
Close #21606
Close #21498
Close #25107
Close #24981
Maybe close #24503

Replace #23301
Replace #22754

And maybe more
2023-06-21 13:50:26 +08:00

221 lines
5.8 KiB
Go

// Copyright 2019 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package cmd
import (
"fmt"
golog "log"
"os"
"path/filepath"
"strings"
"text/tabwriter"
"code.gitea.io/gitea/models/db"
"code.gitea.io/gitea/models/migrations"
migrate_base "code.gitea.io/gitea/models/migrations/base"
"code.gitea.io/gitea/modules/doctor"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"github.com/urfave/cli"
"xorm.io/xorm"
)
// CmdDoctor represents the available doctor sub-command.
var CmdDoctor = cli.Command{
Name: "doctor",
Usage: "Diagnose and optionally fix problems",
Description: "A command to diagnose problems with the current Gitea instance according to the given configuration. Some problems can optionally be fixed by modifying the database or data storage.",
Action: runDoctor,
Flags: []cli.Flag{
cli.BoolFlag{
Name: "list",
Usage: "List the available checks",
},
cli.BoolFlag{
Name: "default",
Usage: "Run the default checks (if neither --run or --all is set, this is the default behaviour)",
},
cli.StringSliceFlag{
Name: "run",
Usage: "Run the provided checks - (if --default is set, the default checks will also run)",
},
cli.BoolFlag{
Name: "all",
Usage: "Run all the available checks",
},
cli.BoolFlag{
Name: "fix",
Usage: "Automatically fix what we can",
},
cli.StringFlag{
Name: "log-file",
Usage: `Name of the log file (default: "doctor.log"). Set to "-" to output to stdout, set to "" to disable`,
},
cli.BoolFlag{
Name: "color, H",
Usage: "Use color for outputted information",
},
},
Subcommands: []cli.Command{
cmdRecreateTable,
},
}
var cmdRecreateTable = cli.Command{
Name: "recreate-table",
Usage: "Recreate tables from XORM definitions and copy the data.",
ArgsUsage: "[TABLE]... : (TABLEs to recreate - leave blank for all)",
Flags: []cli.Flag{
cli.BoolFlag{
Name: "debug",
Usage: "Print SQL commands sent",
},
},
Description: `The database definitions Gitea uses change across versions, sometimes changing default values and leaving old unused columns.
This command will cause Xorm to recreate tables, copying over the data and deleting the old table.
You should back-up your database before doing this and ensure that your database is up-to-date first.`,
Action: runRecreateTable,
}
func runRecreateTable(ctx *cli.Context) error {
stdCtx, cancel := installSignals()
defer cancel()
// Redirect the default golog to here
golog.SetFlags(0)
golog.SetPrefix("")
golog.SetOutput(log.LoggerToWriter(log.GetLogger(log.DEFAULT).Info))
debug := ctx.Bool("debug")
setting.MustInstalled()
setting.LoadDBSetting()
if debug {
setting.InitSQLLoggersForCli(log.DEBUG)
} else {
setting.InitSQLLoggersForCli(log.INFO)
}
setting.Database.LogSQL = debug
if err := db.InitEngine(stdCtx); err != nil {
fmt.Println(err)
fmt.Println("Check if you are using the right config file. You can use a --config directive to specify one.")
return nil
}
args := ctx.Args()
names := make([]string, 0, ctx.NArg())
for i := 0; i < ctx.NArg(); i++ {
names = append(names, args.Get(i))
}
beans, err := db.NamesToBean(names...)
if err != nil {
return err
}
recreateTables := migrate_base.RecreateTables(beans...)
return db.InitEngineWithMigration(stdCtx, func(x *xorm.Engine) error {
if err := migrations.EnsureUpToDate(x); err != nil {
return err
}
return recreateTables(x)
})
}
func setupDoctorDefaultLogger(ctx *cli.Context, colorize bool) {
// Silence the default loggers
setupConsoleLogger(log.FATAL, log.CanColorStderr, os.Stderr)
logFile := ctx.String("log-file")
if !ctx.IsSet("log-file") {
logFile = "doctor.log"
}
if len(logFile) == 0 {
// if no doctor log-file is set, do not show any log from default logger
return
}
if logFile == "-" {
setupConsoleLogger(log.TRACE, colorize, os.Stdout)
} else {
logFile, _ = filepath.Abs(logFile)
writeMode := log.WriterMode{Level: log.TRACE, WriterOption: log.WriterFileOption{FileName: logFile}}
writer, err := log.NewEventWriter("console-to-file", "file", writeMode)
if err != nil {
log.FallbackErrorf("unable to create file log writer: %v", err)
return
}
log.GetManager().GetLogger(log.DEFAULT).RemoveAllWriters().AddWriters(writer)
}
}
func runDoctor(ctx *cli.Context) error {
stdCtx, cancel := installSignals()
defer cancel()
colorize := log.CanColorStdout
if ctx.IsSet("color") {
colorize = ctx.Bool("color")
}
setupDoctorDefaultLogger(ctx, colorize)
// Finally redirect the default golang's log to here
golog.SetFlags(0)
golog.SetPrefix("")
golog.SetOutput(log.LoggerToWriter(log.GetLogger(log.DEFAULT).Info))
if ctx.IsSet("list") {
w := tabwriter.NewWriter(os.Stdout, 0, 8, 1, '\t', 0)
_, _ = w.Write([]byte("Default\tName\tTitle\n"))
for _, check := range doctor.Checks {
if check.IsDefault {
_, _ = w.Write([]byte{'*'})
}
_, _ = w.Write([]byte{'\t'})
_, _ = w.Write([]byte(check.Name))
_, _ = w.Write([]byte{'\t'})
_, _ = w.Write([]byte(check.Title))
_, _ = w.Write([]byte{'\n'})
}
return w.Flush()
}
var checks []*doctor.Check
if ctx.Bool("all") {
checks = doctor.Checks
} else if ctx.IsSet("run") {
addDefault := ctx.Bool("default")
names := ctx.StringSlice("run")
for i, name := range names {
names[i] = strings.ToLower(strings.TrimSpace(name))
}
for _, check := range doctor.Checks {
if addDefault && check.IsDefault {
checks = append(checks, check)
continue
}
for _, name := range names {
if name == check.Name {
checks = append(checks, check)
break
}
}
}
} else {
for _, check := range doctor.Checks {
if check.IsDefault {
checks = append(checks, check)
}
}
}
return doctor.RunChecks(stdCtx, colorize, ctx.Bool("fix"), checks)
}