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Added columns when printing commands.

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This commit is contained in:
Andrey Parhomenko 2023-11-11 20:40:53 +03:00
parent f877427ca8
commit 707875fd6a
2 changed files with 47 additions and 39 deletions
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34
mtool/main.go
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@ -9,6 +9,8 @@ import (
//path "path/filepath"
"flag"
"sort"
"text/tabwriter"
"io"
)
@ -108,6 +110,23 @@ func (t *Tool) ProgName() string {
return t.name
}
func (t *Tool) PrintSubs(out io.Writer) {
w := new(tabwriter.Writer)
w.Init(out, 0, 0, 1, ' ', 0)
defer w.Flush()
keys := make([]string, len(t.subs))
i := 0
for k, _ := range t.subs {
keys[i] = k
i++
}
sort.Strings(keys)
for _, k := range keys {
tool := t.subs[k]
fmt.Fprintf(w, " %s\t%s\n", k, tool.desc)
}
}
func (t *Tool) Run(args []string) {
var(
usageTool *Tool
@ -180,13 +199,6 @@ func (t *Tool) Run(args []string) {
// Print available sub commands if
// got no arguments.
if len(args) == 0 {
keys := make([]string, len(t.subs))
i := 0
for k, _ := range t.subs {
keys[i] = k
i++
}
sort.Strings(keys)
if t.desc != "" {
fmt.Fprintf(
@ -202,13 +214,9 @@ func (t *Tool) Run(args []string) {
fmt.Fprintf(out, "\nDescription:\n %s\n", t.ldesc)
}
if len(keys) > 0 {
if len(t.subs) > 0 {
fmt.Fprint(out, "\nCommands:\n")
for _, k := range keys {
tool := t.subs[k]
fmt.Fprintf(out, " %s\t%s\n", k, tool.desc)
}
t.PrintSubs(out)
}
os.Exit(1)