88 lines
2.6 KiB
Go
88 lines
2.6 KiB
Go
package cmds
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import (
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"fmt"
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"io"
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"os"
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"github.com/pobri19/sqlboiler/dbdrivers"
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"github.com/spf13/cobra"
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)
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// CobraRunFunc declares the cobra.Command.Run function definition
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type CobraRunFunc func(cmd *cobra.Command, args []string)
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// CmdData holds the table schema a slice of (column name, column type) slices.
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// It also holds a slice of all of the table names sqlboiler is generating against,
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// the database driver chosen by the driver flag at runtime, and a pointer to the
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// output file, if one is specified with a flag.
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type CmdData struct {
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Tables []string
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Columns [][]dbdrivers.DBColumn
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PkgName string
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OutFolder string
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DBDriver dbdrivers.DBDriver
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}
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// tplData is used to pass data to the template
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type tplData struct {
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Table string
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Columns []dbdrivers.DBColumn
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}
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// errorQuit displays an error message and then exits the application.
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func errorQuit(err error) {
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fmt.Println(fmt.Sprintf("Error: %s\n---\n\nRun 'sqlboiler --help' for usage.", err))
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os.Exit(-1)
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}
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// defaultRun is the default function passed to the commands cobra.Command.Run.
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// It will generate the specific commands template and send it to outHandler for output.
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func defaultRun(cmd *cobra.Command, args []string) {
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// Generate the template for every table
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for i := 0; i < len(cmdData.Columns); i++ {
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data := tplData{
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Table: cmdData.Tables[i],
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Columns: cmdData.Columns[i],
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}
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// outHandler takes a slice of byte slices, so append the Template
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// execution output to a [][]byte before sending it to outHandler.
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out := [][]byte{generateTemplate(cmd.Name(), &data)}
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err := outHandler(cmdData.OutFolder, out, &data)
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if err != nil {
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errorQuit(fmt.Errorf("Unable to generate the template for command %s: %s", cmd.Name(), err))
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}
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}
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}
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var testHarnessStdout io.Writer = os.Stdout
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var testHarnessFileOpen = func(filename string) (io.WriteCloser, error) {
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file, err := os.Create(filename)
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return file, err
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}
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// outHandler loops over the slice of byte slices, outputting them to either
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// the OutFile if it is specified with a flag, or to Stdout if no flag is specified.
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func outHandler(outFolder string, output [][]byte, data *tplData) error {
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out := testHarnessStdout
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if len(outFolder) != 0 {
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path := outFolder + "/" + data.Table + ".go"
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outFile, err := testHarnessFileOpen(path)
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if err != nil {
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errorQuit(fmt.Errorf("Unable to create output file %s: %s", path, err))
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}
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defer outFile.Close()
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out = outFile
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}
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for _, templateOutput := range output {
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if _, err := fmt.Fprintf(out, "%s\n", templateOutput); err != nil {
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errorQuit(fmt.Errorf("Unable to write template output to file handle: %v", err))
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}
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}
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return nil
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}
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