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120 lines
3.7 KiB
Go
120 lines
3.7 KiB
Go
package diff
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import (
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"github.com/neilotoole/sq/libsq/core/ioz"
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"github.com/neilotoole/sq/libsq/source"
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)
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// renderSourceMeta2YAML returns a YAML rendering of source.Metadata.
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// The returned YAML is subtly different from that
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// returned by yamlw.NewSourceWriter. For example, it
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// adds a "table_count" field.
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func renderSourceMeta2YAML(sm *source.Metadata) (string, error) {
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if sm == nil {
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return "", nil
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}
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// sourceMeta holds values of source.Metadata in the structure
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// that diff wants.
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type sourceMeta struct {
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Handle string `json:"handle" yaml:"handle"`
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Location string `json:"location" yaml:"location"`
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Name string `json:"name" yaml:"name"`
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FQName string `json:"name_fq" yaml:"name_fq"`
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Schema string `json:"schema,omitempty" yaml:"schema,omitempty"`
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Driver source.DriverType `json:"driver" yaml:"driver"`
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DBDriver source.DriverType `json:"db_driver" yaml:"db_driver"`
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DBProduct string `json:"db_product" yaml:"db_product"`
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DBVersion string `json:"db_version" yaml:"db_version"`
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User string `json:"user,omitempty" yaml:"user,omitempty"`
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Size int64 `json:"size" yaml:"size"`
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TableCount int64 `json:"table_count" yaml:"table_count"`
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}
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smr := &sourceMeta{
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Handle: sm.Handle,
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Location: source.RedactLocation(sm.Location),
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Name: sm.Name,
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FQName: sm.FQName,
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Schema: sm.Schema,
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Driver: sm.Driver,
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DBDriver: sm.DBDriver,
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DBProduct: sm.DBProduct,
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DBVersion: sm.DBVersion,
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User: sm.User,
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Size: sm.Size,
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TableCount: sm.TableCount,
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}
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b, err := ioz.MarshalYAML(smr)
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if err != nil {
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return "", err
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}
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return string(b), nil
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}
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// renderTableMeta2YAML returns a YAML rendering of source.TableMetadata.
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// The returned YAML is subtly different from that
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// returned by yamlw.NewSourceWriter. For example, it
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// adds a "column_count" field.
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func renderTableMeta2YAML(showRowCounts bool, tm *source.TableMetadata) (string, error) {
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if tm == nil {
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return "", nil
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}
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// tableMeta hosts values of source.TableMetadata in the
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// structure that diff wants.
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type tableMeta struct {
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Name string `json:"name" yaml:"name"`
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FQName string `json:"name_fq,omitempty" yaml:"name_fq,omitempty"`
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TableType string `json:"table_type,omitempty" yaml:"table_type,omitempty"`
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DBTableType string `json:"table_type_db,omitempty" yaml:"table_type_db,omitempty"`
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// RowCount is a pointer, because its display is controlled
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// by a variable.
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RowCount *int64 `json:"row_count,omitempty" yaml:"row_count,omitempty"`
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Size *int64 `json:"size,omitempty" yaml:"size,omitempty"`
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Comment string `json:"comment,omitempty" yaml:"comment,omitempty"`
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ColumnCount int64 `json:"column_count" yaml:"column_count"`
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Columns []*source.ColMetadata `json:"columns" yaml:"columns"`
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}
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tmr := &tableMeta{
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Name: tm.Name,
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FQName: tm.FQName,
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TableType: tm.TableType,
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DBTableType: tm.DBTableType,
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// TODO: Printing of Size should be controlled by a param,
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// e.g. "show-volatile-fields". Until then, we omit it.
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Size: nil,
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Comment: tm.Comment,
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ColumnCount: int64(len(tm.Columns)),
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Columns: tm.Columns,
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}
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if showRowCounts {
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tmr.RowCount = &tm.RowCount
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}
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b, err := ioz.MarshalYAML(tmr)
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if err != nil {
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return "", err
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}
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return string(b), nil
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}
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// renderDBProperties2YAML returns a YAML rendering of db properties.
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func renderDBProperties2YAML(props map[string]any) (string, error) {
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if len(props) == 0 {
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return "", nil
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}
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b, err := ioz.MarshalYAML(props)
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if err != nil {
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return "", err
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}
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return string(b), nil
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}
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