dolthub--dolt
wehub-resource-sync
97 行
3.1 KiB
Go
97 行
3.1 KiB
Go
// Copyright 2019 Dolthub, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package tblcmds
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import (
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"context"
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"fmt"
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"io"
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eventsapi "github.com/dolthub/eventsapi_schema/dolt/services/eventsapi/v1alpha1"
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"github.com/dolthub/dolt/go/cmd/dolt/cli"
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"github.com/dolthub/dolt/go/cmd/dolt/commands"
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"github.com/dolthub/dolt/go/cmd/dolt/errhand"
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"github.com/dolthub/dolt/go/libraries/doltcore/doltdb"
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"github.com/dolthub/dolt/go/libraries/doltcore/env"
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"github.com/dolthub/dolt/go/libraries/utils/argparser"
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)
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var tblRmDocs = cli.CommandDocumentationContent{
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ShortDesc: "Removes table(s) from the working set of tables.",
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LongDesc: "{{.EmphasisLeft}}dolt table rm{{.EmphasisRight}} removes table(s) from the working set. These changes can be staged using {{.EmphasisLeft}}dolt add{{.EmphasisRight}} and committed using {{.EmphasisLeft}}dolt commit{{.EmphasisRight}}",
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Synopsis: []string{
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"{{.LessThan}}table{{.GreaterThan}}...",
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},
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}
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type RmCmd struct{}
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// Name is returns the name of the Dolt cli command. This is what is used on the command line to invoke the command
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func (cmd RmCmd) Name() string {
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return "rm"
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}
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// Description returns a description of the command
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func (cmd RmCmd) Description() string {
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return "Deletes a table"
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}
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// EventType returns the type of the event to log
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func (cmd RmCmd) EventType() eventsapi.ClientEventType {
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return eventsapi.ClientEventType_TABLE_RM
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}
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func (cmd RmCmd) Docs() *cli.CommandDocumentation {
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ap := cmd.ArgParser()
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return cli.NewCommandDocumentation(tblRmDocs, ap)
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}
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func (cmd RmCmd) ArgParser() *argparser.ArgParser {
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ap := argparser.NewArgParserWithVariableArgs(cmd.Name())
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ap.ArgListHelp = append(ap.ArgListHelp, [2]string{"table", "The table to remove"})
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return ap
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}
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// Exec executes the command
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func (cmd RmCmd) Exec(ctx context.Context, commandStr string, args []string, dEnv *env.DoltEnv, cliCtx cli.CliContext) int {
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ap := cmd.ArgParser()
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help, usage := cli.HelpAndUsagePrinters(cli.CommandDocsForCommandString(commandStr, tblRmDocs, ap))
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apr := cli.ParseArgsOrDie(ap, args, help)
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if apr.NArg() == 0 {
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usage()
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return 1
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}
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for _, tableName := range apr.Args {
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if doltdb.IsReadOnlySystemTable(doltdb.TableName{Name: tableName}) {
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return commands.HandleVErrAndExitCode(
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errhand.BuildDError("error removing table %s", tableName).AddCause(doltdb.ErrSystemTableCannotBeModified).Build(), usage)
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}
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}
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queryStr := ""
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for _, tableName := range apr.Args {
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queryStr = fmt.Sprintf("%sDROP TABLE `%s`;", queryStr, tableName)
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}
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cli.CliOut = io.Discard // display nothing on success
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return commands.SqlCmd{}.Exec(ctx, "", []string{
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fmt.Sprintf(`--%s`, commands.QueryFlag),
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queryStr,
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}, dEnv, cliCtx)
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}
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