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add template output mode

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This commit is contained in:
Thomas von Dein
2025-12-08 21:53:44 +01:00
parent 2bb0cdb0af
commit db35d08385
11 changed files with 214 additions and 48 deletions
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4
cmd/root.go
View File

@@ -23,9 +23,9 @@ import (
"slices"
"strings"
"github.com/spf13/cobra"
"codeberg.org/scip/tablizer/cfg"
"codeberg.org/scip/tablizer/lib"
"github.com/spf13/cobra"
)
func completion(cmd *cobra.Command, mode string) error {
@@ -179,6 +179,8 @@ func Execute() {
"Enable ASCII output (default)")
rootCmd.MarkFlagsMutuallyExclusive("extended", "markdown", "orgtbl",
"shell", "yaml", "csv")
rootCmd.PersistentFlags().StringVarP(&conf.Template, "template", "P", "",
"template for template output mode")
// config file
rootCmd.PersistentFlags().StringVarP(&conf.Configfile, "config", "f", cfg.DefaultConfigfile,

6
cmd/shortusage.go
View File

@@ -13,6 +13,6 @@ const shortusage = `tablizer [regex,...] [-r file] [flags]
-x col,... use custom headers -d debug
-o char use char as output separator -g auto generate headers
-O org -C CSV -M md -X ext -S shell -Y yaml -J json -D sort descending order
-m show manual --help show detailed help -v show version
-a sort by age -i sort numerically -t sort by time`
-O org -C CSV -M md -X ext -S shell -Y yaml -J json -P template
-a sort by age -i sort numerically -t sort by time -D sort descending order
-m show manual -v show version --help show detailed help`

40
cmd/tablizer.go
View File

@@ -34,6 +34,7 @@ SYNOPSIS
-J, --jsonout Enable JSON output
-C, --csv Enable CSV output
-A, --ascii Default output mode, ascii tabular
-P, --template <tpl> Enable template mode with template <tpl>
-L, --hightlight-lines Use alternating background colors for tables
-o, --ofs <char> Output field separator, used by -A and -C.
-y, --yank-columns Yank specified columns (separated by ,) to clipboard,
@@ -77,16 +78,16 @@ DESCRIPTION
use the -v option to exclude all rows which match the pattern. Hence:
# read from STDIN
kubectl get pods | tablizer
> kubectl get pods | tablizer
# read a file
tablizer -r filename
> tablizer -r filename
# search for pattern in a file (works like grep)
tablizer regex -r filename
> tablizer regex -r filename
# search for pattern in STDIN
kubectl get pods | tablizer regex
> kubectl get pods | tablizer regex
The output looks like the original one. You can add the option -n, then
every header field will have a numer associated with it, e.g.:
@@ -96,18 +97,18 @@ DESCRIPTION
These numbers denote the column and you can use them to specify which
columns you want to have in your output (see COLUMNS:
kubectl get pods | tablizer -c1,3
> kubectl get pods | tablizer -c1,3
You can specify the numbers in any order but output will always follow
the original order.
However, you may also just use the header names instead of numbers, eg:
kubectl get pods | tablizer -cname,status
> kubectl get pods | tablizer -cname,status
You can also use regular expressions with -c, eg:
kubectl get pods | tablizer -c '[ae]'
> kubectl get pods | tablizer -c '[ae]'
By default tablizer shows a header containing the names of each column.
This can be disabled using the -H option. Be aware that this only
@@ -218,7 +219,7 @@ DESCRIPTION
Example for a case insensitive search:
kubectl get pods -A | tablizer "/account/i"
> kubectl get pods -A | tablizer "/account/i"
If you use the "!" flag, then the regex match will be negated, that is,
if a line in the input matches the given regex, but "!" is supplied,
@@ -284,7 +285,7 @@ DESCRIPTION
We want to see only the CMD column and use a regex for this:
ps | tablizer -s '\s+' -c C
> ps | tablizer -s '\s+' -c C
CMD(4)
bash
ps
@@ -315,7 +316,7 @@ DESCRIPTION
Example:
cat t/testtable2
> cat t/testtable2
NAME DURATION
x 10
a 100
@@ -323,7 +324,7 @@ DESCRIPTION
u 4
k 6
cat t/testtable2 | tablizer -T2 -R '/^\d/4/' -n
> cat t/testtable2 | tablizer -T2 -R '/^\d/4/' -n
NAME DURATION
x 40
a 400
@@ -339,7 +340,7 @@ DESCRIPTION
header left, value right, aligned by the field widths. Here's an
example:
kubectl get pods | ./tablizer -o extended
> kubectl get pods | ./tablizer -o extended
NAME: repldepl-7bcd8d5b64-7zq4l
READY: 1/1
STATUS: Running
@@ -352,7 +353,7 @@ DESCRIPTION
The option -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
> 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"
@@ -364,6 +365,18 @@ DESCRIPTION
markdown which prints a Markdown table, yaml, which prints yaml encoding
and CSV mode, which prints a comma separated value file.
A special output mode ist the Template mode, activated with the option
"--template". Template language is the Golang template language:
<https://pkg.go.dev/text/template>. You can also use lot's of additional
functions from: <https://masterminds.github.io/sprig/>. Here's an
example:
> kubectl get pods | tablizer --template "{{.name}} is {{.status}}"
alertmanager-kube-prometheus-alertmanager-0 is Running
grafana-fcc54cbc9-bk7s8 is Running
You can use header names as variables.
PUT FIELDS TO CLIPBOARD
You can let tablizer put fields to the clipboard using the option "-y".
This best fits the use-case when the result of your filtering yields
@@ -532,6 +545,7 @@ Output Flags (mutually exclusive):
-J, --jsonout Enable JSON output
-C, --csv Enable CSV output
-A, --ascii Default output mode, ascii tabular
-P, --template <tpl> Enable template mode with template <tpl>
-L, --hightlight-lines Use alternating background colors for tables
-o, --ofs <char> Output field separator, used by -A and -C.
-y, --yank-columns Yank specified columns (separated by ,) to clipboard,