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Use a dynamically sized left column in help.

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This commit is contained in:
Alec Thomas
2018-08-09 20:35:47 +10:00
parent e2c55d143e
commit 27d2a08e53
1 changed files with 6 additions and 2 deletions
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help.go
+6 -2
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@@ -201,10 +201,14 @@ func writeFlags(w *helpWriter, groups [][]*Flag) {
} }
func writeTwoColumns(w *helpWriter, padding int, rows [][2]string) { func writeTwoColumns(w *helpWriter, padding int, rows [][2]string) {
maxLeft := 375 * w.width / 1000
if maxLeft < 30 {
maxLeft = 30
}
// Find size of first column. // Find size of first column.
leftSize := 0 leftSize := 0
for _, row := range rows { for _, row := range rows {
if c := len(row[0]); c > leftSize && c < 30 { if c := len(row[0]); c > leftSize && c < maxLeft {
leftSize = c leftSize = c
} }
} }
@@ -217,7 +221,7 @@ func writeTwoColumns(w *helpWriter, padding int, rows [][2]string) {
lines := strings.Split(strings.TrimRight(buf.String(), "\n"), "\n") lines := strings.Split(strings.TrimRight(buf.String(), "\n"), "\n")
line := fmt.Sprintf("%-*s", leftSize, row[0]) line := fmt.Sprintf("%-*s", leftSize, row[0])
if len(row[0]) < 30 { if len(row[0]) < maxLeft {
line += fmt.Sprintf("%*s%s", padding, "", lines[0]) line += fmt.Sprintf("%*s%s", padding, "", lines[0])
lines = lines[1:] lines = lines[1:]
} }