added shell mode output

TODO

@@ -1,5 +1 @@
-Add a mode like FreeBSD stat(1):
-
-stat -s dead.letter 
-st_dev=170671546954750497 st_ino=159667 st_mode=0100644 st_nlink=1 st_uid=1001 st_gid=1001 st_rdev=18446744073709551615 st_size=573 st_atime=1661994007 st_mtime=1661961878 st_ctime=1661961878 st_birthtime=1658394900 st_blksize=4096 st_blocks=3 st_flags=2048
 

cmd/root.go

@@ -65,11 +65,13 @@ func init() {
 	rootCmd.PersistentFlags().BoolVarP(&lib.OutflagExtended, "extended", "X", false, "Enable extended output")
 	rootCmd.PersistentFlags().BoolVarP(&lib.OutflagMarkdown, "markdown", "M", false, "Enable markdown table output")
 	rootCmd.PersistentFlags().BoolVarP(&lib.OutflagOrgtable, "orgtbl", "O", false, "Enable org-mode table output")
-	rootCmd.MarkFlagsMutuallyExclusive("extended", "markdown", "orgtbl")
+	rootCmd.PersistentFlags().BoolVarP(&lib.OutflagShell, "shell", "S", false, "Enable shell mode output")
+	rootCmd.MarkFlagsMutuallyExclusive("extended", "markdown", "orgtbl", "shell")
 	rootCmd.Flags().MarkHidden("extended")
 	rootCmd.Flags().MarkHidden("orgtbl")
 	rootCmd.Flags().MarkHidden("markdown")
+	rootCmd.Flags().MarkHidden("shell")
 
 	// same thing but more common, takes precedence over above group
-	rootCmd.PersistentFlags().StringVarP(&lib.OutputMode, "output", "o", "", "Output mode - one of: orgtbl, markdown, extended, ascii(default)")
+	rootCmd.PersistentFlags().StringVarP(&lib.OutputMode, "output", "o", "", "Output mode - one of: orgtbl, markdown, extended, shell, ascii(default)")
 }

lib/common.go

@@ -28,7 +28,8 @@ var Separator string
 var OutflagExtended bool
 var OutflagMarkdown bool
 var OutflagOrgtable bool
+var OutflagShell bool
 var OutputMode string
 
-var Version = "v1.0.2"
+var Version = "v1.0.3"
 var validOutputmodes = "(orgtbl|markdown|extended|ascii)"

lib/helpers.go

@@ -57,6 +57,9 @@ func PrepareModeFlags() error {
 			OutputMode = "markdown"
 		case OutflagOrgtable:
 			OutputMode = "orgtbl"
+		case OutflagShell:
+			OutputMode = "shell"
+			NoNumbering = true
 		default:
 			OutputMode = "ascii"
 		}

lib/printer.go

@@ -27,7 +27,6 @@ import (
 
 func printData(data *Tabdata) {
 	// prepare headers: add numbers to headers
-	if !NoNumbering {
 	numberedHeaders := []string{}
 	for i, head := range data.headers {
 		if len(Columns) > 0 {
@@ -37,10 +36,13 @@ func printData(data *Tabdata) {
 				continue
 			}
 		}
+		if NoNumbering {
+			numberedHeaders = append(numberedHeaders, head)
+		} else {
 			numberedHeaders = append(numberedHeaders, fmt.Sprintf("%s(%d)", head, i+1))
 		}
-		data.headers = numberedHeaders
 	}
+	data.headers = numberedHeaders
 
 	// prepare data
 	if len(Columns) > 0 {
@@ -69,6 +71,8 @@ func printData(data *Tabdata) {
 		printOrgmodeData(data)
 	case "markdown":
 		printMarkdownData(data)
+	case "shell":
+		printShellData(data)
 	default:
 		printAsciiData(data)
 	}
@@ -177,3 +181,26 @@ func printExtendedData(data *Tabdata) {
 		}
 	}
 }
+
+/*
+   Shell output, ready to be eval'd. Just like FreeBSD stat(1)
+*/
+func printShellData(data *Tabdata) {
+	if len(data.entries) > 0 {
+		var idx int
+		for _, entry := range data.entries {
+			idx = 0
+			for i, value := range entry {
+				if len(Columns) > 0 {
+					if !contains(UseColumns, i+1) {
+						continue
+					}
+				}
+
+				fmt.Printf("%s=\"%s\" ", data.headers[idx], value)
+				idx++
+			}
+			fmt.Println()
+		}
+	}
+}

tablizer.pod

@@ -74,7 +74,7 @@ The numbering can be suppressed by using the B<-n> option.
 Finally the  B<-d> option  enables debugging  output which  is mostly
 usefull for the developer.
 
-?head2 OUTPUT MODES
+=head2 OUTPUT MODES
 
 There might be cases  when the tabular output of a  program is way too
 large  for your  current  terminal but  you still  need  to see  every
@@ -83,7 +83,7 @@ usefull which enables I<extended mode>. In this mode, each row will be
 printed vertically,  header left,  value right,  aligned by  the field
 widths. Here's an example:
 
-    kubectl get pods | ./tablizer -X
+    kubectl get pods | ./tablizer -o extended
         NAME: repldepl-7bcd8d5b64-7zq4l  
        READY: 1/1    
       STATUS: Running  
@@ -93,6 +93,17 @@ widths. Here's an example:
 You can  of course  still use  a regex  to reduce  the number  of rows
 displayed.
 
+The option B<-o shell>  can be used if the output  has to be processed
+by the shell,  it prints variable assignments for each  cell, one line
+per row:
+
+    kubectl get pods | ./tablizer -o extended ./tablizer -o shell
+    NAME="repldepl-7bcd8d5b64-7zq4l" READY="1/1" STATUS="Running" RESTARTS="9 (47m ago)" AGE="4d23h" 
+    NAME="repldepl-7bcd8d5b64-m48n8" READY="1/1" STATUS="Running" RESTARTS="9 (47m ago)" AGE="4d23h" 
+    NAME="repldepl-7bcd8d5b64-q2bf4" READY="1/1" STATUS="Running" RESTARTS="9 (47m ago)" AGE="4d23h" 
+
+You can use this in an eval loop.
+
 Beside normal  ascii mode  (the default) and  extended mode  there are
 more output modes available: B<orgtbl>  which prints an Emacs org-mode
 table and B<markdown> which prints a Markdown table.