|
| 1 | +package main |
| 2 | + |
| 3 | +import ( |
| 4 | + "bytes" |
| 5 | + "encoding/json" |
| 6 | + "fmt" |
| 7 | + "io" |
| 8 | + "log" |
| 9 | + "os" |
| 10 | + "strings" |
| 11 | + |
| 12 | + "github.com/multiprocessio/datastation/runner" |
| 13 | +) |
| 14 | + |
| 15 | +func isinpipe() bool { |
| 16 | + fi, _ := os.Stdin.Stat() |
| 17 | + return (fi.Mode() & os.ModeCharDevice) == 0 |
| 18 | +} |
| 19 | + |
| 20 | +func resolveContentType(fileExtensionOrContentType string) string { |
| 21 | + if strings.Contains(fileExtensionOrContentType, "/") { |
| 22 | + return fileExtensionOrContentType |
| 23 | + } |
| 24 | + |
| 25 | + return runner.GetMimeType("x."+fileExtensionOrContentType, runner.ContentTypeInfo{}) |
| 26 | +} |
| 27 | + |
| 28 | +var firstNonFlagArg = "" |
| 29 | + |
| 30 | +func getResult(res interface{}) error { |
| 31 | + out := bytes.NewBuffer(nil) |
| 32 | + arg := firstNonFlagArg |
| 33 | + |
| 34 | + var internalErr error |
| 35 | + if isinpipe() { |
| 36 | + mimetype := resolveContentType(arg) |
| 37 | + if mimetype == "" { |
| 38 | + return fmt.Errorf(`First argument when used in a pipe should be file extension or content type. e.g. 'cat test.csv | dsq csv "SELECT * FROM {}"'`) |
| 39 | + } |
| 40 | + |
| 41 | + cti := runner.ContentTypeInfo{Type: mimetype} |
| 42 | + internalErr = runner.TransformReader(os.Stdin, "", cti, out) |
| 43 | + } else { |
| 44 | + internalErr = runner.TransformFile(arg, runner.ContentTypeInfo{}, out) |
| 45 | + } |
| 46 | + if internalErr != nil { |
| 47 | + return internalErr |
| 48 | + } |
| 49 | + |
| 50 | + decoder := json.NewDecoder(out) |
| 51 | + return decoder.Decode(res) |
| 52 | +} |
| 53 | + |
| 54 | +func main() { |
| 55 | + if len(os.Args) < 3 { |
| 56 | + log.Fatal(`Expected data source and query. e.g. 'dsq names.csv "SELECT name FROM {}"'`) |
| 57 | + } |
| 58 | + |
| 59 | + runner.Verbose = false |
| 60 | + inputTable := "{}" |
| 61 | + lastNonFlagArg := "" |
| 62 | + for i, arg := range os.Args[1:] { |
| 63 | + if arg == "-i" || arg == "--input-table-alias" { |
| 64 | + if i > len(os.Args)-2 { |
| 65 | + log.Fatal(`Expected input table alias after flag. e.g. 'dsq -i XX names.csv "SELECT * FROM XX"'`) |
| 66 | + } |
| 67 | + |
| 68 | + inputTable = os.Args[i+1] |
| 69 | + continue |
| 70 | + } |
| 71 | + |
| 72 | + if arg == "-v" || arg == "--verbose" { |
| 73 | + runner.Verbose = true |
| 74 | + continue |
| 75 | + } |
| 76 | + |
| 77 | + if firstNonFlagArg == "" { |
| 78 | + firstNonFlagArg = arg |
| 79 | + } |
| 80 | + |
| 81 | + lastNonFlagArg = arg |
| 82 | + } |
| 83 | + |
| 84 | + var res []map[string]interface{} |
| 85 | + err := getResult(&res) |
| 86 | + if err != nil { |
| 87 | + log.Fatal(err) |
| 88 | + } |
| 89 | + |
| 90 | + sampleSize := 50 |
| 91 | + shape, err := runner.GetArrayShape(firstNonFlagArg, res, sampleSize) |
| 92 | + if err != nil { |
| 93 | + log.Fatal(err) |
| 94 | + } |
| 95 | + |
| 96 | + p0 := runner.PanelInfo{ |
| 97 | + ResultMeta: runner.PanelResult{ |
| 98 | + Shape: *shape, |
| 99 | + }, |
| 100 | + } |
| 101 | + project := &runner.ProjectState{ |
| 102 | + Pages: []runner.ProjectPage{ |
| 103 | + { |
| 104 | + Panels: []runner.PanelInfo{p0}, |
| 105 | + }, |
| 106 | + }, |
| 107 | + } |
| 108 | + connector, tmp, err := runner.MakeTmpSQLiteConnector() |
| 109 | + if err != nil { |
| 110 | + log.Fatal(err) |
| 111 | + } |
| 112 | + defer os.Remove(tmp.Name()) |
| 113 | + project.Connectors = append(project.Connectors, *connector) |
| 114 | + |
| 115 | + query := lastNonFlagArg |
| 116 | + query = strings.ReplaceAll(query, inputTable, "DM_getPanel(0)") |
| 117 | + panel := &runner.PanelInfo{ |
| 118 | + Type: runner.DatabasePanel, |
| 119 | + Content: query, |
| 120 | + DatabasePanelInfo: &runner.DatabasePanelInfo{ |
| 121 | + Database: runner.DatabasePanelInfoDatabase{ |
| 122 | + ConnectorId: connector.Id, |
| 123 | + }, |
| 124 | + }, |
| 125 | + } |
| 126 | + |
| 127 | + panelResultLoader := func(_, _ string, out interface{}) error { |
| 128 | + r := out.(*[]map[string]interface{}) |
| 129 | + *r = res |
| 130 | + return nil |
| 131 | + } |
| 132 | + err = runner.EvalDatabasePanel(project, 0, panel, panelResultLoader) |
| 133 | + if err != nil { |
| 134 | + log.Fatal(err) |
| 135 | + } |
| 136 | + |
| 137 | + // Dump the result to stdout |
| 138 | + fd, err := os.Open(runner.GetPanelResultsFile(project.Id, panel.Id)) |
| 139 | + if err != nil { |
| 140 | + log.Fatalf("Could not open results file: %s", err) |
| 141 | + } |
| 142 | + |
| 143 | + io.Copy(os.Stdout, fd) |
| 144 | +} |
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