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Client: add colors to client help screens

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This commit is contained in:
Benjamin Canou 2018-01-17 20:17:28 +01:00 committed by Benjamin Canou
parent de80f0150b
commit 3955b6a61d
1 changed files with 112 additions and 35 deletions
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147
src/lib_stdlib_lwt/cli_entries.ml
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@ -250,11 +250,13 @@ type ('arg, 'ret) command =
group : group option }
-> ('arg, 'ret) command
type format = [ `Plain | `Ansi ]
type error += Extra_arguments : string list * (_, _) command -> error
type error += Not_enough_args : string list * ('a, 'b) command list -> error
type error += Command_not_found : string list * ('a, 'b) command list -> error
type error += Help_flag : ('a, 'b) command list -> error (* when -help appears in input *)
type error += Help_cmd : string list * ('a, 'b) command list * bool * bool -> error (* ./tezos-client help *)
type error += Help_cmd : string list * ('a, 'b) command list * format * bool * bool -> error (* ./tezos-client help *)
type error += Bare_help : error (* ./tezos-client or ./tezos-client -help *)
type error += Autocomplete_command : string list -> error
@ -320,15 +322,25 @@ let rec help_commands commands =
Will display only the commands by default, \
unless [-verbose] is passed or the list \
of matching commands if less than 3."
(args2
(args3
(switch
~doc:"Print terse output, regardless of number of commands returned"
~parameter:"-terse")
(switch
~doc:"Print detailed output, regardless of number of commands returned"
~parameter:"-verbose"))
~parameter:"-verbose")
(default_arg
~doc:"Select the manual's output format"
~parameter: "-format"
~default: (if Unix.isatty Unix.stdout then "colors" else "plain")
(parameter
~autocomplete: (fun _ -> return [ "colors" ; "plain" ])
(fun _ arg -> match arg with
| "colors" -> return `Ansi
| "plain" -> return `Plain
| _ -> failwith "Unknown manual format"))))
(prefix "man" @@ seq_of_param (string ~name:"keyword" ~desc:"Keyword to search for"))
(fun (terse, details) keywords _ ->
(fun (terse, details, format) keywords _ ->
if terse && details
then fail (Invalid_options_combination "Cannot specify both -verbose and -terse.")
else
@ -337,6 +349,7 @@ let rec help_commands commands =
(fun commands keyword -> List.filter (search_command keyword) commands)
(help_commands [] @ commands)
keywords,
format,
terse,
details))) ]
@ -513,13 +526,13 @@ let print_options_detailed (type ctx) =
let help_option : type a.Format.formatter -> (a, ctx) arg -> unit =
fun ppf -> function
| Arg { parameter ; doc } ->
Format.fprintf ppf "@[<v 2>%s _@,@[<hov 0>%a@]@]"
Format.fprintf ppf "@[<v 2>@{<opt>%s _@}:@,@[<hov 0>%a@]@]"
parameter Format.pp_print_text doc
| DefArg { parameter ; doc ; default } ->
Format.fprintf ppf "@[<v 2>%s _ (default: %s)@,@[<hov 0>%a@]@]"
Format.fprintf ppf "@[<v 2>@{<opt>%s _@} (default %s):@,@[<hov 0>%a@]@]"
parameter default Format.pp_print_text doc
| Switch { parameter ; doc } ->
Format.fprintf ppf "@[<v 2>%s@,@[<hov 0>%a@]@]"
Format.fprintf ppf "@[<v 2>@{<opt>%s@}:@,@[<hov 0>%a@]@]"
parameter Format.pp_print_text doc
in let rec help : type b. Format.formatter -> (b, ctx) args -> unit =
fun ppf -> function
@ -541,11 +554,11 @@ let print_options_brief (type ctx) =
type a. Format.formatter -> (a, ctx) arg -> unit =
fun ppf -> function
| DefArg { parameter } ->
Format.fprintf ppf "[%s _]" parameter
Format.fprintf ppf "[@{<opt>%s _@}]" parameter
| Arg { parameter } ->
Format.fprintf ppf "[%s _]" parameter
Format.fprintf ppf "[@{<opt>%s _@}]" parameter
| Switch { parameter } ->
Format.fprintf ppf "[%s]" parameter
Format.fprintf ppf "[@{<opt>%s@}]" parameter
in let rec help : type b. Format.formatter -> (b, ctx) args -> unit =
fun ppf -> function
| NoArgs -> ()
@ -568,7 +581,7 @@ let print_highlight highlight_strings formatter str =
(function
| Str.Text text -> Format.fprintf formatter "%s" text
| Str.Delim delimiter ->
Format.fprintf formatter "\x1b[103m%s\x1b[0m" delimiter)
Format.fprintf formatter "@{<arg>%s@}" delimiter)
list
end
in print_string (List.map Str.regexp_string highlight_strings)
@ -579,18 +592,18 @@ let print_commandline ppf (highlights, options, args) =
fun ppf -> function
| Stop -> Format.fprintf ppf "%a" print_options_brief options
| Seq (n, _, _) when not (has_args options) ->
Format.fprintf ppf "[(%s)...]" n
Format.fprintf ppf "[@{<arg>%s@}...]" n
| Seq (n, _, _) ->
Format.fprintf ppf "[(%s)...] %a" n print_options_brief options
Format.fprintf ppf "[@{<arg>%s@}...] %a" n print_options_brief options
| Prefix (n, Stop) when not (has_args options) ->
Format.fprintf ppf "%a" (print_highlight highlights) n
Format.fprintf ppf "@{<cmd>%a@}" (print_highlight highlights) n
| Prefix (n, next) ->
Format.fprintf ppf "%a %a"
Format.fprintf ppf "@{<cmd>%a@} %a"
(print_highlight highlights) n print next
| Param (n, _, _, Stop) when not (has_args options) ->
Format.fprintf ppf "(%s)" n
Format.fprintf ppf "@{<arg>%s@}" n
| Param (n, _, _, next) ->
Format.fprintf ppf "(%s) %a" n print next in
Format.fprintf ppf "@{<arg>%s@} %a" n print next in
Format.fprintf ppf "@[<hov 4>%a@]" print args
let rec print_params_detailed
@ -598,7 +611,7 @@ let rec print_params_detailed
= fun spec ppf -> function
| Stop -> print_options_detailed ppf spec
| Seq (n, desc, _) ->
Format.fprintf ppf "@[<v 2>(%s)@,@[<hov 0>%a@]@]"
Format.fprintf ppf "@[<v 2>@{<arg>%s@}:@,@[<hov 0>%a@]@]"
n Format.pp_print_text (trim desc) ;
begin match spec with
| NoArgs -> ()
@ -607,14 +620,14 @@ let rec print_params_detailed
| Prefix (_, next) ->
print_params_detailed spec ppf next
| Param (n, desc, _, Stop) ->
Format.fprintf ppf "@[<v 2>(%s)@,@[<hov 0>%a@]@]"
Format.fprintf ppf "@[<v 2>@{<arg>%s@}:@,@[<hov 0>%a@]@]"
n Format.pp_print_text (trim desc);
begin match spec with
| NoArgs -> ()
| _ -> Format.fprintf ppf "@,%a" print_options_detailed spec
end
| Param (n, desc, _, next) ->
Format.fprintf ppf "@[<v 2>(%s)@,@[<hov 0>%a@]@]@,%a"
Format.fprintf ppf "@[<v 2>@{<arg>%s@}:@,@[<hov 0>%a@]@]@,%a"
n Format.pp_print_text (trim desc) (print_params_detailed spec) next
let contains_params_args :
@ -671,21 +684,82 @@ let group_commands commands =
ref l ]))
let print_group print_command ppf ({ title }, commands) =
Format.fprintf ppf "@[<v 2>%s:@,%a@]"
Format.fprintf ppf "@[<v 2>@{<title>%s@}@,%a@]"
title
(Format.pp_print_list print_command) commands
let setup_ppf ppf = function
| `Ansi ->
let color_num = function
| `Black -> None
| `Red -> Some 1
| `Green -> Some 2
| `Yellow -> Some 3
| `Blue -> Some 4
| `Magenta -> Some 5
| `Cyan -> Some 6
| `White -> Some 7 in
let ansi_format ppf (fg, bg, b, u) =
Format.fprintf ppf "@<0>%s" "\027[0m" ;
match
(match color_num fg with Some n -> [ string_of_int (30 + n) ] | None -> []) @
(match color_num bg with Some n -> [ string_of_int (40 + n) ] | None -> []) @
(if b then [ "1" ] else []) @
(if u then [ "4" ] else [])
with
| [] -> ()
| l -> Format.fprintf ppf "@<0>%s" ("\027[" ^ String.concat ";" l ^ "m") in
Format.pp_set_formatter_tag_functions ppf
{ mark_open_tag = (fun _ -> "") ;
mark_close_tag = (fun _ -> "") ;
print_open_tag = begin function
| "title" -> Format.fprintf ppf "@<0>%a" ansi_format (`White, `Black, true, true)
| "opt" -> Format.fprintf ppf "@<0>%a" ansi_format (`Green, `Black, false, false)
| "arg" -> Format.fprintf ppf "@<0>%a<" ansi_format (`Yellow, `Black, false, false)
| "cmd" -> Format.fprintf ppf "@<0>%a" ansi_format (`White, `Black, false, true)
| _ -> Pervasives.failwith "Cli_entries: invalid semantic tag"
end ;
print_close_tag = begin function
| "title" -> Format.fprintf ppf ":@<0>%s" "\027[0m"
| "opt" -> Format.fprintf ppf "@<0>%s" "\027[0m"
| "arg" -> Format.fprintf ppf ">@<0>%s" "\027[0m"
| "cmd" -> Format.fprintf ppf "@<0>%s" "\027[0m"
| _ -> Pervasives.failwith "Cli_entries: invalid semantic tag"
end } ;
Format.pp_set_print_tags ppf true
| `Plain ->
Format.pp_set_formatter_tag_functions ppf
{ mark_open_tag = (fun _ -> "") ;
mark_close_tag = (fun _ -> "") ;
print_open_tag = begin function
| "title" -> ()
| "opt" -> ()
| "arg" -> Format.fprintf ppf "<"
| "cmd" -> ()
| _ -> Pervasives.failwith "Cli_entries: invalid semantic tag"
end ;
print_close_tag = begin function
| "title" -> Format.fprintf ppf ":"
| "opt" -> ()
| "arg" -> Format.fprintf ppf ">"
| "cmd" -> ()
| _ -> Pervasives.failwith "Cli_entries: invalid semantic tag"
end } ;
Format.pp_set_print_tags ppf true
let usage
ppf
?global_options
~details
?(highlights=[]) commands =
let usage ppf (by_group, options) =
let exe = Filename.basename Sys.executable_name in
let print_groups =
Format.pp_print_list
~pp_sep: (fun ppf () -> Format.fprintf ppf "@,@,")
(print_group (if details
then print_command ?prefix:None ~highlights
then
print_command ?prefix:None ~highlights
else
fun ppf (Command { params ; options=Argument { spec }}) ->
print_commandline ppf (highlights, spec, params))) in
@ -695,16 +769,15 @@ let usage
"@[<v>%a@]"
print_groups by_group
| Some (Argument { spec })->
let exe = Filename.basename Sys.executable_name in
Format.fprintf ppf
"@[<v>@[<v 2>Usage:@,\
%s [global options] command [command options]@,\
%s -help (for global options)@,\
%s [global options] command -help (for command options)@]@,@,\
@[<v 2>To browse the documentation:@,\
%s [global options] man (for a list of commands)@,\
%s [global options] man -details (for the full manual)@]@,@,\
@[<v 2>Global options (must come before the command):@,@[<v 0>%a@]@]%a\
"@[<v>@[<v 2>@{<title>Usage@}@,\
%s @{<opt>[global options]@} command @{<opt>[command options]@}@,\
%s @{<opt>-help@} (for global options)@,\
%s @{<opt>[global options]@} command @{<opt>-help@} (for command options)@]@,@,\
@[<v 2>@{<title>To browse the documentation@}@,\
%s @{<opt>[global options]@} man (for a list of commands)@,\
%s @{<opt>[global options]@} man @{<opt>-details@} (for the full manual)@]@,@,\
@[<v 2>@{<title>Global options (must come before the command)@}@,@[<v 0>%a@]@]%a\
%a@]"
exe exe exe exe exe
print_options_detailed spec
@ -712,7 +785,7 @@ let usage
print_groups by_group in
Format.fprintf ppf "@[<v 0>%a" usage (group_commands commands, global_options) ;
if not details then
Format.fprintf ppf "@,@,Use option [-verbose] for command options." ;
Format.fprintf ppf "@,@,Use option [@{<opt>-verbose@}] for command options." ;
Format.fprintf ppf "@]"
let command_usage
@ -894,11 +967,13 @@ let handle_cli_errors ~stdout ~stderr ~global_options = function
| Error [ e ] -> (* Should only be one error here *)
begin match e with
| Extra_arguments (_, cmd) ->
setup_ppf stderr (if Unix.isatty Unix.stderr then `Ansi else `Plain) ;
Format.fprintf stderr
"Extra arguments provided for command:@;<1 2>@[%a@]@."
(print_command ?prefix:None ~highlights:[]) cmd;
return 1
| Not_enough_args (_, cmds) ->
setup_ppf stderr (if Unix.isatty Unix.stderr then `Ansi else `Plain) ;
Format.fprintf stderr
"@[<v 2>Unterminated command, here are possible completions:@,%a@]@."
(Format.pp_print_list
@ -935,10 +1010,10 @@ let handle_cli_errors ~stdout ~stderr ~global_options = function
| Invalid_options_combination message ->
Format.fprintf stderr "%s@." message ;
return 1
| Help_cmd ([ highlight ], [], _, _) ->
| Help_cmd ([ highlight ], [], _, _, _) ->
Format.fprintf stderr "No command found that match %s.@." highlight ;
return 0
| Help_cmd (highlight :: highlights, [], _, _) ->
| Help_cmd (highlight :: highlights, [], _, _, _) ->
Format.fprintf stderr "No command found that match %a%s and %s.@."
(Format.pp_print_list
~pp_sep:(fun ppf () -> Format.fprintf ppf ", ")
@ -946,7 +1021,7 @@ let handle_cli_errors ~stdout ~stderr ~global_options = function
(match highlights with [ _ ] | [] -> "" | _::_ -> ",")
highlight ;
return 0
| Help_cmd (highlights, commands, terse, details) ->
| Help_cmd (highlights, commands, format, terse, details) ->
let details =
if terse || details then
details
@ -954,10 +1029,12 @@ let handle_cli_errors ~stdout ~stderr ~global_options = function
List.length commands <= 3 in
let global_options =
if details && highlights = [] then Some global_options else None in
setup_ppf stdout format ;
Format.fprintf stdout "%a@."
(usage ?global_options ~details ~highlights) commands;
return 0
| Bare_help ->
setup_ppf stdout (if Unix.isatty Unix.stdout then `Ansi else `Plain) ;
Format.fprintf stdout "%a@."
(usage ~global_options ~details:true ?highlights:None) [] ;
return 0