113 lines
4.2 KiB
Go
113 lines
4.2 KiB
Go
/*
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GoToSocial
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Copyright (C) 2021-2022 GoToSocial Authors admin@gotosocial.org
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package main
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import (
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"flag"
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"fmt"
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"os"
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"os/exec"
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"reflect"
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"github.com/superseriousbusiness/gotosocial/internal/config"
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)
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const license = `/*
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GoToSocial
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Copyright (C) 2021-2022 GoToSocial Authors admin@gotosocial.org
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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`
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func main() {
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var (
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out string
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gen string
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)
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// Load runtime config flags
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flag.StringVar(&out, "out", "", "Generated file output path")
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flag.StringVar(&gen, "gen", "helpers", "Type of file to generate (helpers)")
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flag.Parse()
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// Open output file path
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output, err := os.OpenFile(out, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, 0o644)
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if err != nil {
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panic(err)
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}
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switch gen {
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// Generate config field helper methods
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case "helpers":
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fmt.Fprint(output, "// THIS IS A GENERATED FILE, DO NOT EDIT BY HAND\n")
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fmt.Fprint(output, license)
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fmt.Fprint(output, "package config\n\n")
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t := reflect.TypeOf(config.Configuration{})
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for i := 0; i < t.NumField(); i++ {
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field := t.Field(i)
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// ConfigState structure helper methods
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fmt.Fprintf(output, "// Get%s safely fetches the Configuration value for state's '%s' field\n", field.Name, field.Name)
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fmt.Fprintf(output, "func (st *ConfigState) Get%s() (v %s) {\n", field.Name, field.Type.String())
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fmt.Fprintf(output, "\tst.mutex.Lock()\n")
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fmt.Fprintf(output, "\tv = st.config.%s\n", field.Name)
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fmt.Fprintf(output, "\tst.mutex.Unlock()\n")
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fmt.Fprintf(output, "\treturn\n")
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fmt.Fprintf(output, "}\n\n")
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fmt.Fprintf(output, "// Set%s safely sets the Configuration value for state's '%s' field\n", field.Name, field.Name)
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fmt.Fprintf(output, "func (st *ConfigState) Set%s(v %s) {\n", field.Name, field.Type.String())
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fmt.Fprintf(output, "\tst.mutex.Lock()\n")
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fmt.Fprintf(output, "\tdefer st.mutex.Unlock()\n")
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fmt.Fprintf(output, "\tst.config.%s = v\n", field.Name)
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fmt.Fprintf(output, "\tst.reloadToViper()\n")
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fmt.Fprintf(output, "}\n\n")
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// Global ConfigState helper methods
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// TODO: remove when we pass around a ConfigState{}
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fmt.Fprintf(output, "// %sFlag returns the flag name for the '%s' field\n", field.Name, field.Name)
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fmt.Fprintf(output, "func %sFlag() string { return \"%s\" }\n\n", field.Name, field.Tag.Get("name"))
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fmt.Fprintf(output, "// Get%s safely fetches the value for global configuration '%s' field\n", field.Name, field.Name)
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fmt.Fprintf(output, "func Get%[1]s() %[2]s { return global.Get%[1]s() }\n\n", field.Name, field.Type.String())
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fmt.Fprintf(output, "// Set%s safely sets the value for global configuration '%s' field\n", field.Name, field.Name)
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fmt.Fprintf(output, "func Set%[1]s(v %[2]s) { global.Set%[1]s(v) }\n\n", field.Name, field.Type.String())
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}
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_ = output.Close()
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_ = exec.Command("gofumports", "-w", out).Run()
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// The plain here is that eventually we might be able
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// to generate an example configuration from struct tags
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// Unknown type
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default:
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panic("unknown generation type: " + gen)
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}
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}
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