Configure delve debugger to print long strings
13 Feb 2019Today I came across the fact that print in debugger mode does not show long lines.
> main.main() ./main.go:7 (PC: 0x10b08d4)
2:
3: import "fmt"
4:
5: func main() {
6: v1 := "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
=> 7: fmt.Println(v1)
8: }
(dlv) p v1
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa...+2 more"
Let’s change max-string-len:
(dlv) config -list
aliases map
substitute-path
max-string-len <not defined>
max-array-values <not defined>
show-location-expr false
(dlv) config max-string-len 1000
(dlv) p v1
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
✅ Now we are good to go.