unified output (#14) (#40)

cmd/issues.go

@@ -35,6 +35,11 @@ var CmdIssues = cli.Command{
 			Name:  "repo, r",
 			Usage: "Indicate one repository, optional when inside a gitea repository",
 		},
+		cli.StringFlag{
+			Name:        "output, o",
+			Usage:       outputUsage,
+			Destination: &output,
+		},
 	},
 }
 
@@ -91,8 +96,17 @@ func runIssuesList(ctx *cli.Context) error {
 		log.Fatal(err)
 	}
 
+	headers := []string{
+		"Index",
+		"Name",
+		"Updated",
+		"Title",
+	}
+
+	var values [][]string
+
 	if len(issues) == 0 {
-		fmt.Println("No issues left")
+		Output(output, headers, values)
 		return nil
 	}
 
@@ -101,8 +115,17 @@ func runIssuesList(ctx *cli.Context) error {
 		if len(name) == 0 {
 			name = issue.Poster.UserName
 		}
-		fmt.Printf("#%d\t%s\t%s\t%s\n", issue.Index, name, issue.Updated.Format("2006-01-02 15:04:05"), issue.Title)
+		values = append(
+			values,
+			[]string{
+				strconv.FormatInt(issue.Index, 10),
+				name,
+				issue.Updated.Format("2006-01-02 15:04:05"),
+				issue.Title,
+			},
+		)
 	}
+	Output(output, headers, values)
 
 	return nil
 }

cmd/log.go

@@ -4,12 +4,21 @@
 
 package cmd
 
-import "fmt"
+import (
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+
+	"github.com/olekukonko/tablewriter"
+)
 
 var (
 	showLog bool
 )
 
+const outputUsage = "Specify output format - table (default), csv, simple, tsv or yaml."
+
 // Println println content according the flag
 func Println(a ...interface{}) {
 	if showLog {
@@ -33,3 +42,72 @@ func Error(a ...interface{}) {
 func Errorf(format string, a ...interface{}) {
 	fmt.Printf(format, a...)
 }
+
+// outputtable prints structured data as table
+func outputtable(headers []string, values [][]string) {
+	table := tablewriter.NewWriter(os.Stdout)
+	if len(headers) > 0 {
+		table.SetHeader(headers)
+	}
+	for _, value := range values {
+		table.Append(value)
+	}
+	table.Render()
+}
+
+// outputsimple prints structured data as space delimited value
+func outputsimple(headers []string, values [][]string) {
+	for _, value := range values {
+		fmt.Printf(strings.Join(value, " "))
+		fmt.Printf("\n")
+	}
+}
+
+// outputdsv prints structured data as delimiter separated value format
+func outputdsv(headers []string, values [][]string, delimiterOpt ...string) {
+	delimiter := ","
+	if len(delimiterOpt) > 0 {
+		delimiter = delimiterOpt[0]
+	}
+	fmt.Println("\"" + strings.Join(headers, "\""+delimiter+"\"") + "\"")
+	for _, value := range values {
+		fmt.Printf("\"")
+		fmt.Printf(strings.Join(value, "\""+delimiter+"\""))
+		fmt.Printf("\"")
+		fmt.Printf("\n")
+	}
+}
+
+// outputyaml prints structured data as yaml
+func outputyaml(headers []string, values [][]string) {
+	for _, value := range values {
+		fmt.Println("-")
+		for j, val := range value {
+			intVal, _ := strconv.Atoi(val)
+			if strconv.Itoa(intVal) == val {
+				fmt.Printf("    %s: %s\n", headers[j], val)
+			} else {
+				fmt.Printf("    %s: '%s'\n", headers[j], val)
+			}
+		}
+	}
+}
+
+// Output provides general function to convert given information
+// into several outputs
+func Output(output string, headers []string, values [][]string) {
+	switch {
+	case output == "" || output == "table":
+		outputtable(headers, values)
+	case output == "csv":
+		outputdsv(headers, values, ",")
+	case output == "simple":
+		outputsimple(headers, values)
+	case output == "tsv":
+		outputdsv(headers, values, "\t")
+	case output == "yaml":
+		outputyaml(headers, values)
+	default:
+		Errorf("unknown output type '" + output + "', available types are:\n- csv: comma-separated values\n- simple: space-separated values\n- table: auto-aligned table format (default)\n- tsv: tab-separated values\n- yaml: YAML format\n")
+	}
+}

cmd/pulls.go

@@ -5,14 +5,16 @@
 package cmd
 
 import (
-	"fmt"
 	"log"
+	"strconv"
 
 	"code.gitea.io/sdk/gitea"
 
 	"github.com/urfave/cli"
 )
 
+var output string
+
 // CmdPulls represents to login a gitea server.
 var CmdPulls = cli.Command{
 	Name:        "pulls",
@@ -28,6 +30,11 @@ var CmdPulls = cli.Command{
 			Name:  "repo, r",
 			Usage: "Indicate one repository, optional when inside a gitea repository",
 		},
+		cli.StringFlag{
+			Name:        "output, o",
+			Usage:       outputUsage,
+			Destination: &output,
+		},
 	},
 }
 
@@ -43,8 +50,17 @@ func runPulls(ctx *cli.Context) error {
 		log.Fatal(err)
 	}
 
+	headers := []string{
+		"Index",
+		"Name",
+		"Updated",
+		"Title",
+	}
+
+	var values [][]string
+
 	if len(prs) == 0 {
-		fmt.Println("No pull requests left")
+		Output(output, headers, values)
 		return nil
 	}
 
@@ -56,8 +72,17 @@ func runPulls(ctx *cli.Context) error {
 		if len(name) == 0 {
 			name = pr.Poster.UserName
 		}
-		fmt.Printf("#%d\t%s\t%s\t%s\n", pr.Index, name, pr.Updated.Format("2006-01-02 15:04:05"), pr.Title)
+		values = append(
+			values,
+			[]string{
+				strconv.FormatInt(pr.Index, 10),
+				name,
+				pr.Updated.Format("2006-01-02 15:04:05"),
+				pr.Title,
+			},
+		)
 	}
+	Output(output, headers, values)
 
 	return nil
 }

cmd/releases.go

@@ -5,7 +5,6 @@
 package cmd
 
 import (
-	"fmt"
 	"log"
 	"os"
 	"path/filepath"
@@ -33,6 +32,11 @@ var CmdReleases = cli.Command{
 			Name:  "repo, r",
 			Usage: "Indicate one repository, optional when inside a gitea repository",
 		},
+		cli.StringFlag{
+			Name:        "output, o",
+			Usage:       outputUsage,
+			Destination: &output,
+		},
 	},
 }
 
@@ -44,17 +48,32 @@ func runReleases(ctx *cli.Context) error {
 		log.Fatal(err)
 	}
 
+	headers := []string{
+		"Tag-Name",
+		"Title",
+		"Published At",
+		"Tar URL",
+	}
+
+	var values [][]string
+
 	if len(releases) == 0 {
-		fmt.Println("No Releases")
+		Output(output, headers, values)
 		return nil
 	}
 
 	for _, release := range releases {
-		fmt.Printf("#%s\t%s\t%s\t%s\n", release.TagName,
-			release.Title,
-			release.PublishedAt.Format("2006-01-02 15:04:05"),
-			release.TarURL)
+		values = append(
+			values,
+			[]string{
+				release.TagName,
+				release.Title,
+				release.PublishedAt.Format("2006-01-02 15:04:05"),
+				release.TarURL,
+			},
+		)
 	}
+	Output(output, headers, values)
 
 	return nil
 }