add shortcut -H to --no-headers, it's too cumbersome to type

Update issue templates

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,31 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: "[bug-report]"
+labels: bug
+assignees: TLINDEN
+
+---
+
+**Describtion**
+<!-- Please provide a clear and concise description of the issue: -->
+
+
+**Steps To Reproduce**
+<!-- Please detail the steps to reproduce the behavior: -->
+
+
+**Expected behavior**
+<!-- What do you expected to happen instead? -->
+
+
+**Version information**
+<!--
+Please provide as much version information as possible:
+- if you have just installed a binary, provide the output of: tablizer --version
+- if you installed from source, provide the output of: make show-version
+- provide additional details: operating system and version and shell environment
+-->
+
+
+**Additional informations**

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,23 @@
+---
+name: Feature request
+about: Suggest a feature
+title: "[feature-request]"
+labels: feature-request
+assignees: TLINDEN
+
+---
+
+**Describtion**
+<!-- Please provide a clear and concise description of the feature you desire: -->
+
+
+
+**Version information**
+<!--
+Just in case the feature is already present, please provide as
+much version information as possible:
+- if you have just installed a binary, provide the output of: tablizer --version
+- if you installed from source, provide the output of: make show-version
+- provide additional details: operating system and version and shell environment
+-->
+

CHANGELOG.md

@@ -4,7 +4,31 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/) and this project adheres to [Semantic Versioning](http://semver.org).
 
-## [v1.0.12](https://github.com/TLINDEN/tablizer/tree/v1.0.13) - 2022-11-03
+## [v1.0.14](https://github.com/TLINDEN/tablizer/tree/v1.0.14) - 2023-01-23
+
+[Full Changelog](https://github.com/TLINDEN/tablizer/compare/v1.0.13...v1.0.14)
+
+### Fixed
+
+- The -D parameter could not be used together with -a.
+
+- Fixed invalid argv handling: when the user wanted to read from stdin
+  but gave an argument which was  meant as a pattern, but also existed
+  as a filename, then tablizer opened the file, ignored stdin.
+  
+- Makefile indentation
+
+  
+### Added
+
+- added licens notes about dependencies
+
+- using hard coded uniseq version, see actions#3396457307
+
+- updated dependencies (go module versions)
+
+
+## [v1.0.13](https://github.com/TLINDEN/tablizer/tree/v1.0.13) - 2022-11-03
 
 [Full Changelog](https://github.com/TLINDEN/tablizer/compare/v1.0.12...v1.0.13)
 
@@ -18,7 +42,9 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/) a
 
 - The `-A` flag wasn't implemented (default output mode).
 
-
+- Fixed building from source on systems w/o perls pod tools,
+  which is not requrired anyway since I always commit the latest
+  manpage.
 
 
 ## [v1.0.12](https://github.com/TLINDEN/tablizer/tree/v1.0.12) - 2022-10-25

Makefile

@@ -17,24 +17,27 @@
 
 #
 # no need to modify anything below
-tool    = tablizer
-version = $(shell egrep "= .v" cfg/config.go | cut -d'=' -f2 | cut -d'"' -f 2)
-archs   = android darwin freebsd linux netbsd openbsd windows
-PREFIX  = /usr/local
-UID     = root
-GID     = 0
-BRANCH  = $(shell git branch --show-current)
-COMMIT  = $(shell git rev-parse --short=8 HEAD)
-BUILD   = $(shell date +%Y.%m.%d.%H%M%S) 
-VERSION:= $(if $(filter $(BRANCH), development),$(version)-$(BRANCH)-$(COMMIT)-$(BUILD),$(version))
-
+tool      = tablizer
+version   = $(shell egrep "= .v" cfg/config.go | cut -d'=' -f2 | cut -d'"' -f 2)
+archs     = android darwin freebsd linux netbsd openbsd windows
+PREFIX    = /usr/local
+UID       = root
+GID       = 0
+BRANCH    = $(shell git branch --show-current)
+COMMIT    = $(shell git rev-parse --short=8 HEAD)
+BUILD     = $(shell date +%Y.%m.%d.%H%M%S) 
+VERSION  := $(if $(filter $(BRANCH), development),$(version)-$(BRANCH)-$(COMMIT)-$(BUILD),$(version))
+HAVE_POD := $(shell pod2text -h 2>/dev/null)
 
 all: $(tool).1 cmd/$(tool).go buildlocal
 
 %.1: %.pod
+ifdef HAVE_POD
 	pod2man -c "User Commands" -r 1 -s 1 $*.pod > $*.1
+endif
 
 cmd/%.go: %.pod
+ifdef HAVE_POD
 	echo "package cmd" > cmd/$*.go
 	echo >> cmd/$*.go
 	echo "var manpage = \`" >> cmd/$*.go
@@ -44,6 +47,7 @@ cmd/%.go: %.pod
 	echo "var usage = \`" >> cmd/$*.go
 	awk '/SYNOPS/{f=1;next} /DESCR/{f=0} f' $*.pod  | sed 's/^    //' >> cmd/$*.go
 	echo "\`" >> cmd/$*.go
+endif
 
 buildlocal:
 	go build -ldflags "-X 'github.com/tlinden/tablizer/cfg.VERSION=$(VERSION)'"
@@ -63,6 +67,7 @@ clean:
 
 test:
 	go test -v ./...
+	bash t/test.sh
 
 singletest:
 	@echo "Call like this: ''make singletest TEST=TestPrepareColumns MOD=lib"
@@ -71,3 +76,18 @@ singletest:
 cover-report:
 	go test ./... -cover -coverprofile=coverage.out
 	go tool cover -html=coverage.out
+
+show-versions: buildlocal
+	@echo "### tablizer version:"
+	@./tablizer --version
+
+	@echo
+	@echo "### go module versions:"
+	@go list -m all
+
+	@echo
+	@echo "### go version used for building:"
+	@grep -m 1 go go.mod
+
+goupdate:
+	go get -t -u=patch ./...

cfg/config.go

@@ -25,13 +25,14 @@ import (
 )
 
 const DefaultSeparator string = `(\s\s+|\t)`
-const Version string = "v1.0.13"
+const Version string = "v1.0.15"
 
 var VERSION string // maintained by -x
 
 type Config struct {
 	Debug       bool
 	NoNumbering bool
+	NoHeaders   bool
 	Columns     string
 	UseColumns  []int
 	Separator   string

cmd/root.go

@@ -20,13 +20,14 @@ import (
 	"bytes"
 	"errors"
 	"fmt"
-	"github.com/spf13/cobra"
-	"github.com/tlinden/tablizer/cfg"
-	"github.com/tlinden/tablizer/lib"
 	"log"
 	"os"
 	"os/exec"
 	"strings"
+
+	"github.com/spf13/cobra"
+	"github.com/tlinden/tablizer/cfg"
+	"github.com/tlinden/tablizer/lib"
 )
 
 func man() {
@@ -105,6 +106,7 @@ func Execute() {
 	// options
 	rootCmd.PersistentFlags().BoolVarP(&conf.Debug, "debug", "d", false, "Enable debugging")
 	rootCmd.PersistentFlags().BoolVarP(&conf.NoNumbering, "no-numbering", "n", false, "Disable header numbering")
+	rootCmd.PersistentFlags().BoolVarP(&conf.NoHeaders, "no-headers", "H", false, "Disable header display")
 	rootCmd.PersistentFlags().BoolVarP(&conf.NoColor, "no-color", "N", false, "Disable pattern highlighting")
 	rootCmd.PersistentFlags().BoolVarP(&ShowVersion, "version", "V", false, "Print program version")
 	rootCmd.PersistentFlags().BoolVarP(&conf.InvertMatch, "invert-match", "v", false, "select non-matching rows")
@@ -121,7 +123,7 @@ func Execute() {
 	rootCmd.PersistentFlags().BoolVarP(&sortmode.Numeric, "sort-numeric", "i", false, "sort according to string numerical value")
 	rootCmd.PersistentFlags().BoolVarP(&sortmode.Time, "sort-time", "t", false, "sort according to time string")
 	rootCmd.PersistentFlags().BoolVarP(&sortmode.Age, "sort-age", "a", false, "sort according to age (duration) string")
-	rootCmd.MarkFlagsMutuallyExclusive("sort-desc", "sort-numeric", "sort-time", "sort-age")
+	rootCmd.MarkFlagsMutuallyExclusive("sort-numeric", "sort-time", "sort-age")
 
 	// output flags, only 1 allowed
 	rootCmd.PersistentFlags().BoolVarP(&modeflag.X, "extended", "X", false, "Enable extended output")

cmd/tablizer.go

@@ -13,6 +13,7 @@ SYNOPSIS
           -v, --invert-match       select non-matching rows
           -n, --no-numbering       Disable header numbering
           -N, --no-color           Disable pattern highlighting
+              --no-headers         Disable headers display
           -s, --separator string   Custom field separator
           -k, --sort-by int        Sort by column (default: 1)
 
@@ -87,6 +88,11 @@ DESCRIPTION
 
     The numbering can be suppressed by using the -n option.
 
+    By default tablizer shows a header containing the names of each column.
+    This can be disabled using the --no-headers option. Be aware that this
+    only affects tabular output modes. Shell, Extended, Yaml and CSV output
+    modes always use the column names.
+
     By default, if a pattern has been speficied, matches will be
     highlighted. You can disable this behavior with the -N option.
 
@@ -255,9 +261,9 @@ LICENSE
     This software is licensed under the GNU GENERAL PUBLIC LICENSE version
     3.
 
-    Copyright (c) 2022 by Thomas von Dein
+    Copyright (c) 2023 by Thomas von Dein
 
-    This software uses the following GO libraries:
+    This software uses the following GO modules:
 
     repr (https://github.com/alecthomas/repr)
         Released under the MIT License, Copyright (c) 2016 Alec Thomas
@@ -266,6 +272,19 @@ LICENSE
         Released under the Apache 2.0 license, Copyright 2013-2022 The Cobra
         Authors
 
+    dateparse (github.com/araddon/dateparse)
+        Released under the MIT License, Copyright (c) 2015-2017 Aaron Raddon
+
+    color (github.com/gookit/color)
+        Released under the MIT License, Copyright (c) 2016 inhere
+
+    tablewriter (github.com/olekukonko/tablewriter)
+        Released under the MIT License, Copyright (c) 201 by Oleku Konko
+
+    yaml (gopkg.in/yaml.v3)
+        Released under the MIT License, Copyright (c) 2006-2011 Kirill
+        Simonov
+
 AUTHORS
     Thomas von Dein tom AT vondein DOT org
 
@@ -280,6 +299,7 @@ Operational Flags:
   -v, --invert-match       select non-matching rows
   -n, --no-numbering       Disable header numbering
   -N, --no-color           Disable pattern highlighting
+      --no-headers         Disable headers display
   -s, --separator string   Custom field separator
   -k, --sort-by int        Sort by column (default: 1)
 

go.mod

@@ -3,19 +3,22 @@ module github.com/tlinden/tablizer
 go 1.18
 
 require (
-	github.com/alecthomas/repr v0.0.0-20180818092828-117648cd9897
+	github.com/alecthomas/repr v0.1.1
 	github.com/araddon/dateparse v0.0.0-20210429162001-6b43995a97de
 	github.com/gookit/color v1.5.2
 	github.com/olekukonko/tablewriter v0.0.5
-	github.com/spf13/cobra v1.5.0
+	github.com/spf13/cobra v1.6.1
 	gopkg.in/yaml.v3 v3.0.1
 )
 
 require (
-	github.com/inconshreveable/mousetrap v1.0.0 // indirect
-	github.com/mattn/go-runewidth v0.0.10 // indirect
-	github.com/rivo/uniseg v0.1.0 // indirect
+	github.com/inconshreveable/mousetrap v1.0.1 // indirect
+	github.com/mattn/go-runewidth v0.0.14 // indirect
+
+    // force release. > 0.4. doesnt build everywhere, see:
+    // https://github.com/TLINDEN/tablizer/actions/runs/3396457307/jobs/5647544615
+    github.com/rivo/uniseg v0.2.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
-	github.com/xo/terminfo v0.0.0-20210125001918-ca9a967f8778 // indirect
-	golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44 // indirect
+	github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e // indirect
+	golang.org/x/sys v0.1.0 // indirect
 )

go.sum

@@ -1,5 +1,5 @@
-github.com/alecthomas/repr v0.0.0-20180818092828-117648cd9897 h1:p9Sln00KOTlrYkxI1zYWl1QLnEqAqEARBEYa8FQnQcY=
-github.com/alecthomas/repr v0.0.0-20180818092828-117648cd9897/go.mod h1:xTS7Pm1pD1mvyM075QCDSRqH6qRLXylzS24ZTpRiSzQ=
+github.com/alecthomas/repr v0.1.1 h1:87P60cSmareLAxMc4Hro0r2RBY4ROm0dYwkJNpS4pPs=
+github.com/alecthomas/repr v0.1.1/go.mod h1:Fr0507jx4eOXV7AlPV6AVZLYrLIuIeSOWtW57eE/O/4=
 github.com/araddon/dateparse v0.0.0-20210429162001-6b43995a97de h1:FxWPpzIjnTlhPwqqXc4/vE0f7GvRjuAsbW+HOIe8KnA=
 github.com/araddon/dateparse v0.0.0-20210429162001-6b43995a97de/go.mod h1:DCaWoUhZrYW9p1lxo/cm8EmUOOzAPSEZNGF2DK1dJgw=
 github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
@@ -8,21 +8,23 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/gookit/color v1.5.2 h1:uLnfXcaFjlrDnQDT+NCBcfhrXqYTx/rcCa6xn01Y8yI=
 github.com/gookit/color v1.5.2/go.mod h1:w8h4bGiHeeBpvQVePTutdbERIUf3oJE5lZ8HM0UgXyg=
-github.com/inconshreveable/mousetrap v1.0.0 h1:Z8tu5sraLXCXIcARxBp/8cbvlwVa7Z1NHg9XEKhtSvM=
-github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
+github.com/inconshreveable/mousetrap v1.0.1 h1:U3uMjPSQEBMNp1lFxmllqCPM6P5u/Xq7Pgzkat/bFNc=
+github.com/inconshreveable/mousetrap v1.0.1/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
 github.com/mattn/go-runewidth v0.0.9/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
-github.com/mattn/go-runewidth v0.0.10 h1:CoZ3S2P7pvtP45xOtBw+/mDL2z0RKI576gSkzRRpdGg=
 github.com/mattn/go-runewidth v0.0.10/go.mod h1:RAqKPSqVFrSLVXbA8x7dzmKdmGzieGRCM46jaSJTDAk=
+github.com/mattn/go-runewidth v0.0.14 h1:+xnbZSEeDbOIg5/mE6JF0w6n9duR1l3/WmbinWVwUuU=
+github.com/mattn/go-runewidth v0.0.14/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
 github.com/olekukonko/tablewriter v0.0.5 h1:P2Ga83D34wi1o9J6Wh1mRuqd4mF/x/lgBS7N7AbDhec=
 github.com/olekukonko/tablewriter v0.0.5/go.mod h1:hPp6KlRPjbx+hW8ykQs1w3UBbZlj6HuIJcUGPhkA7kY=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/rivo/uniseg v0.1.0 h1:+2KBaVoUmb9XzDsrx/Ct0W/EYOSFf/nWTauy++DprtY=
 github.com/rivo/uniseg v0.1.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
+github.com/rivo/uniseg v0.2.0 h1:S1pD9weZBuJdFmowNwbpi7BJ8TNftyUImj/0WQi72jY=
+github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/scylladb/termtables v0.0.0-20191203121021-c4c0b6d42ff4/go.mod h1:C1a7PQSMz9NShzorzCiG2fk9+xuCgLkPeCvMHYR2OWg=
-github.com/spf13/cobra v1.5.0 h1:X+jTBEBqF0bHN+9cSMgmfuvv2VHJ9ezmFNf9Y/XstYU=
-github.com/spf13/cobra v1.5.0/go.mod h1:dWXEIy2H428czQCjInthrTRUg7yKbok+2Qi/yBIJoUM=
+github.com/spf13/cobra v1.6.1 h1:o94oiPyS4KD1mPy2fmcYYHHfCxLqYjJOhGsCHFZtEzA=
+github.com/spf13/cobra v1.6.1/go.mod h1:IOw/AERYS7UzyrGinqmz6HLUo219MORXGxhbaJUqzrY=
 github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
 github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
@@ -31,13 +33,15 @@ github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/
 github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.8.0 h1:pSgiaMZlXftHpm5L7V1+rVB+AZJydKsMxsQBIJw4PKk=
 github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
-github.com/xo/terminfo v0.0.0-20210125001918-ca9a967f8778 h1:QldyIu/L63oPpyvQmHgvgickp1Yw510KJOqX7H24mg8=
 github.com/xo/terminfo v0.0.0-20210125001918-ca9a967f8778/go.mod h1:2MuV+tbUrU1zIOPMxZ5EncGwgmMJsa+9ucAQZXxsObs=
-golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44 h1:Bli41pIlzTzf3KEY06n+xnzK/BESIg2ze4Pgfh/aI8c=
+github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e h1:JVG44RsyaB9T2KIHavMF/ppJZNG9ZpyihvCd0w101no=
+github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e/go.mod h1:RbqR21r5mrJuqunuUZ/Dhy/avygyECGrLceyNeo4LiM=
+golang.org/x/exp v0.0.0-20220909182711-5c715a9e8561 h1:MDc5xs78ZrZr3HMQugiXOAkSZtfTpbJLDr/lwfgO53E=
 golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.1.0 h1:kunALQeHf1/185U1i0GOB/fy1IPRDDpuoOOqRReG57U=
+golang.org/x/sys v0.1.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

lib/io.go

@@ -55,40 +55,54 @@ func ProcessFiles(c *cfg.Config, args []string) error {
 func determineIO(c *cfg.Config, args []string) ([]io.Reader, string, error) {
 	var pattern string
 	var fds []io.Reader
-	var havefiles bool
+	var haveio bool
 
-	if len(args) > 0 {
-		// threre were args left, take a look
-		if _, err := os.Stat(args[0]); err != nil {
-			// first  one is  not a  file, consider  it as  regexp and
-			// shift arg list
+	stat, _ := os.Stdin.Stat()
+	if (stat.Mode() & os.ModeCharDevice) == 0 {
+		// we're reading from STDIN, which takes precedence over file args
+		fds = append(fds, os.Stdin)
+		if len(args) > 0 {
+			// ignore any args > 1
 			pattern = args[0]
 			c.Pattern = args[0] // used for colorization by printData()
-			args = args[1:]
 		}
-
+		haveio = true
+	} else {
 		if len(args) > 0 {
-			// only files
-			for _, file := range args {
-				fd, err := os.OpenFile(file, os.O_RDONLY, 0755)
-
-				if err != nil {
-					return nil, "", err
+			// threre were args left, take a look
+			if args[0] == "-" {
+				// in traditional unix programs a dash denotes STDIN (forced)
+				fds = append(fds, os.Stdin)
+				haveio = true
+			} else {
+				if _, err := os.Stat(args[0]); err != nil {
+					// first  one is  not a  file, consider  it as  regexp and
+					// shift arg list
+					pattern = args[0]
+					c.Pattern = args[0] // used for colorization by printData()
+					args = args[1:]
 				}
 
-				fds = append(fds, fd)
+				if len(args) > 0 {
+					// consider any other args as files
+					for _, file := range args {
+
+						fd, err := os.OpenFile(file, os.O_RDONLY, 0755)
+
+						if err != nil {
+							return nil, "", err
+						}
+
+						fds = append(fds, fd)
+						haveio = true
+					}
+				}
 			}
-			havefiles = true
 		}
 	}
 
-	if !havefiles {
-		stat, _ := os.Stdin.Stat()
-		if (stat.Mode() & os.ModeCharDevice) == 0 {
-			fds = append(fds, os.Stdin)
-		} else {
-			return nil, "", errors.New("No file specified and nothing to read on stdin!")
-		}
+	if !haveio {
+		return nil, "", errors.New("No file specified and nothing to read on stdin!")
 	}
 
 	return fds, pattern, nil

lib/printer.go

@@ -69,13 +69,15 @@ func output(w io.Writer, str string) {
 }
 
 /*
-   Emacs org-mode compatible table (also orgtbl-mode)
+Emacs org-mode compatible table (also orgtbl-mode)
 */
 func printOrgmodeData(w io.Writer, c cfg.Config, data *Tabdata) {
 	tableString := &strings.Builder{}
 	table := tablewriter.NewWriter(tableString)
 
-	table.SetHeader(data.headers)
+	if !c.NoHeaders {
+		table.SetHeader(data.headers)
+	}
 
 	for _, row := range data.entries {
 		table.Append(trimRow(row))
@@ -104,13 +106,15 @@ func printOrgmodeData(w io.Writer, c cfg.Config, data *Tabdata) {
 }
 
 /*
-   Markdown table
+Markdown table
 */
 func printMarkdownData(w io.Writer, c cfg.Config, data *Tabdata) {
 	tableString := &strings.Builder{}
 	table := tablewriter.NewWriter(tableString)
 
-	table.SetHeader(data.headers)
+	if !c.NoHeaders {
+		table.SetHeader(data.headers)
+	}
 
 	for _, row := range data.entries {
 		table.Append(trimRow(row))
@@ -124,19 +128,17 @@ func printMarkdownData(w io.Writer, c cfg.Config, data *Tabdata) {
 }
 
 /*
-   Simple ASCII table without any borders etc, just like the input we expect
+Simple ASCII table without any borders etc, just like the input we expect
 */
 func printAsciiData(w io.Writer, c cfg.Config, data *Tabdata) {
 	tableString := &strings.Builder{}
 	table := tablewriter.NewWriter(tableString)
 
-	table.SetHeader(data.headers)
+	if !c.NoHeaders {
+		table.SetHeader(data.headers)
+	}
 	table.AppendBulk(data.entries)
 
-	// for _, row := range data.entries {
-	// 	table.Append(trimRow(row))
-	// }
-
 	table.SetAutoWrapText(false)
 	table.SetAutoFormatHeaders(true)
 	table.SetHeaderAlignment(tablewriter.ALIGN_LEFT)
@@ -154,7 +156,7 @@ func printAsciiData(w io.Writer, c cfg.Config, data *Tabdata) {
 }
 
 /*
-   We simulate the \x command of psql (the PostgreSQL client)
+We simulate the \x command of psql (the PostgreSQL client)
 */
 func printExtendedData(w io.Writer, c cfg.Config, data *Tabdata) {
 	// needed for data output
@@ -174,7 +176,7 @@ func printExtendedData(w io.Writer, c cfg.Config, data *Tabdata) {
 }
 
 /*
-   Shell output, ready to be eval'd. Just like FreeBSD stat(1)
+Shell output, ready to be eval'd. Just like FreeBSD stat(1)
 */
 func printShellData(w io.Writer, c cfg.Config, data *Tabdata) {
 	out := ""

mkrel.sh

@@ -43,7 +43,7 @@ for D in $DIST; do
     tardir="${tool}-${os}-${arch}-${version}"
     tarfile="releases/${tool}-${os}-${arch}-${version}.tar.gz"
     set -x
-    GOOS=${os} GOARCH=${arch} go build -o ${binfile} -ldflags "-X 'github.com/tlinden/tablizer/lib.VERSION=${version}'"
+    GOOS=${os} GOARCH=${arch} go build -o ${binfile} -ldflags "-X 'github.com/tlinden/tablizer/cfg.VERSION=${version}'"
     mkdir -p ${tardir}
     cp ${binfile} README.md LICENSE ${tardir}/
     echo 'tool = tablizer

t/test.sh

@@ -0,0 +1,45 @@
+#!/bin/sh
+
+# simple commandline unit test script
+
+t="../tablizer"
+fail=0
+
+ex() {
+    # execute a test, report+exit on error, stay silent otherwise
+    log="/tmp/test-tablizer.$$.log"
+    name=$1
+    shift
+
+    echo -n "TEST $name "
+
+    $* > $log 2>&1
+
+    if test $? -ne 0; then
+        echo "failed, see $log"
+        fail=1
+    else
+        echo "ok"
+        rm -f $log
+    fi
+}
+
+# only use files in test dir
+cd $(dirname $0)
+
+echo "Executing commandline tests ..."
+
+# io pattern tests
+ex io-pattern-and-file $t bk7 testtable.kube
+cat testtable.kube | ex io-pattern-and-stdin $t bk7
+cat testtable.kube | ex io-pattern-and-stdin-dash $t bk7 -
+
+# same w/o pattern
+ex io-just-file $t testtable.kube
+cat testtable.kube | ex io-just-stdin $t
+cat testtable.kube | ex io-just-stdin-dash $t -
+
+if test $fail -ne 0; then
+    echo "!!! Some tests failed !!!"
+    exit 1
+fi

t/testtable

@@ -0,0 +1,6 @@
+NAME                                                 READY   STATUS    RESTARTS       AGE
+alertmanager-kube-prometheus-alertmanager-0          2/2     Running   35 (45m ago)   11d
+grafana-fcc54cbc9-bk7s8                              1/1     Running   17 (45m ago)   1d
+kube-prometheus-blackbox-exporter-5d85b5d8f4-tskh7   1/1     Running   17 (45m ago)   1h44m
+kube-prometheus-kube-state-metrics-b4cd9487-75p7f    1/1     Running   20 (45m ago)   45m
+kube-prometheus-node-exporter-bfzpl                  1/1     Running   17 (45m ago)   54s

tablizer.1

@@ -133,7 +133,7 @@
 .\" ========================================================================
 .\"
 .IX Title "TABLIZER 1"
-.TH TABLIZER 1 "2022-11-01" "1" "User Commands"
+.TH TABLIZER 1 "2023-04-21" "1" "User Commands"
 .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
 .\" way too many mistakes in technical documents.
 .if n .ad l
@@ -151,6 +151,7 @@ tablizer \- Manipulate tabular output of other programs
 \&      \-v, \-\-invert\-match       select non\-matching rows
 \&      \-n, \-\-no\-numbering       Disable header numbering
 \&      \-N, \-\-no\-color           Disable pattern highlighting
+\&          \-\-no\-headers         Disable headers display
 \&      \-s, \-\-separator string   Custom field separator
 \&      \-k, \-\-sort\-by int        Sort by column (default: 1)
 \&
@@ -234,6 +235,11 @@ the original order.
 .PP
 The numbering can be suppressed by using the \fB\-n\fR option.
 .PP
+By  default tablizer  shows  a  header containing  the  names of  each
+column.  This  can be disabled  using the \fB\-\-no\-headers\fR  option.  Be
+aware that  this only affects  tabular output modes.  Shell, Extended,
+Yaml and \s-1CSV\s0 output modes always use the column names.
+.PP
 By  default, if  a  \fBpattern\fR  has been  speficied,  matches will  be
 highlighted. You can disable this behavior with the \fB\-N\fR option.
 .PP
@@ -442,15 +448,27 @@ or to submit a patch, please open an issue on github:
 .IX Header "LICENSE"
 This software is licensed under the \s-1GNU GENERAL PUBLIC LICENSE\s0 version 3.
 .PP
-Copyright (c) 2022 by Thomas von Dein
+Copyright (c) 2023 by Thomas von Dein
 .PP
-This software uses the following \s-1GO\s0 libraries:
+This software uses the following \s-1GO\s0 modules:
 .IP "repr (https://github.com/alecthomas/repr)" 4
 .IX Item "repr (https://github.com/alecthomas/repr)"
 Released under the \s-1MIT\s0 License, Copyright (c) 2016 Alec Thomas
 .IP "cobra (https://github.com/spf13/cobra)" 4
 .IX Item "cobra (https://github.com/spf13/cobra)"
 Released under the Apache 2.0 license, Copyright 2013\-2022 The Cobra Authors
+.IP "dateparse (github.com/araddon/dateparse)" 4
+.IX Item "dateparse (github.com/araddon/dateparse)"
+Released under the \s-1MIT\s0 License, Copyright (c) 2015\-2017 Aaron Raddon
+.IP "color (github.com/gookit/color)" 4
+.IX Item "color (github.com/gookit/color)"
+Released under the \s-1MIT\s0 License, Copyright (c) 2016 inhere
+.IP "tablewriter (github.com/olekukonko/tablewriter)" 4
+.IX Item "tablewriter (github.com/olekukonko/tablewriter)"
+Released under the \s-1MIT\s0 License, Copyright (c) 201 by Oleku Konko
+.IP "yaml (gopkg.in/yaml.v3)" 4
+.IX Item "yaml (gopkg.in/yaml.v3)"
+Released under the \s-1MIT\s0 License, Copyright (c) 2006\-2011 Kirill Simonov
 .SH "AUTHORS"
 .IX Header "AUTHORS"
 Thomas von Dein \fBtom \s-1AT\s0 vondein \s-1DOT\s0 org\fR

tablizer.pod

@@ -12,6 +12,7 @@ tablizer - Manipulate tabular output of other programs
       -v, --invert-match       select non-matching rows
       -n, --no-numbering       Disable header numbering
       -N, --no-color           Disable pattern highlighting
+          --no-headers         Disable headers display
       -s, --separator string   Custom field separator
       -k, --sort-by int        Sort by column (default: 1)
 
@@ -90,6 +91,11 @@ the original order.
 
 The numbering can be suppressed by using the B<-n> option.
 
+By  default tablizer  shows  a  header containing  the  names of  each
+column.  This  can be disabled  using the B<--no-headers>  option.  Be
+aware that  this only affects  tabular output modes.  Shell, Extended,
+Yaml and CSV output modes always use the column names.
+
 By  default, if  a  B<pattern>  has been  speficied,  matches will  be
 highlighted. You can disable this behavior with the B<-N> option.
 
@@ -293,9 +299,9 @@ L<https://github.com/TLINDEN/tablizer/issues>.
 
 This software is licensed under the GNU GENERAL PUBLIC LICENSE version 3.
 
-Copyright (c) 2022 by Thomas von Dein
+Copyright (c) 2023 by Thomas von Dein
 
-This software uses the following GO libraries:
+This software uses the following GO modules:
 
 =over 4
 
@@ -307,6 +313,22 @@ Released under the MIT License, Copyright (c) 2016 Alec Thomas
 
 Released under the Apache 2.0 license, Copyright 2013-2022 The Cobra Authors
 
+=item dateparse (github.com/araddon/dateparse)
+
+Released under the MIT License, Copyright (c) 2015-2017 Aaron Raddon
+
+=item color (github.com/gookit/color)
+
+Released under the MIT License, Copyright (c) 2016 inhere
+
+=item tablewriter (github.com/olekukonko/tablewriter)
+
+Released under the MIT License, Copyright (c) 201 by Oleku Konko
+
+=item yaml (gopkg.in/yaml.v3)
+
+Released under the MIT License, Copyright (c) 2006-2011 Kirill Simonov
+
 =back
 
 =head1 AUTHORS