caurea.org
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1{ }:
2
3let
4 colors = {
5 blue = "\\033[1;34m";
6 dim = "\\033[0;2m";
7 yellow = "\\033[1;33m";
8 green = "\\033[0;32m";
9 nc = "\\033[0m";
10 };
11in
12rec {
13 mkShellBrief =
14 {
15 pkgs,
16 banner,
17 setup ? [ ],
18 commands ? [ ],
19 }:
20 pkgs.writeShellScriptBin "brief" ''
21 clear
22
23 ${banner}
24
25 echo
26 echo
27
28 ${mkSections {
29 inherit pkgs setup commands;
30 }}
31 '';
32
33 mkSections =
34 {
35 pkgs,
36 setup ? [ ],
37 commands ? [ ],
38 }:
39 let
40 lib = pkgs.lib;
41
42 mkVarName = name: "status_" + (builtins.replaceStrings [ " " "-" "." ] [ "_" "_" "_" ] name);
43 allSetupVars = map (item: mkVarName item.name) setup;
44 okValue = "${colors.green}Ok${colors.nc}";
45
46 padTo =
47 target: str:
48 let
49 strLen = builtins.stringLength str;
50 diff = target - strLen;
51 actualDiff = if diff > 0 then diff else 1;
52 spaces = lib.concatStrings (builtins.genList (_: " ") actualDiff);
53 in
54 "${str}${spaces}";
55 in
56 ''
57 # 1. State Calculation
58 ${lib.concatStringsSep "\n" (
59 map (item: ''
60 ${mkVarName item.name}="${okValue}"
61 if ! ${item.condition}; then
62 ${mkVarName item.name}="${colors.yellow}${item.suggestion}${colors.nc}"
63 fi
64 '') setup
65 )}
66
67 # 2. Render Setup Section (Only if at least one step is not "Ok")
68 ${lib.optionalString (setup != [ ]) ''
69 SHOW_SETUP=false
70 for var in ${lib.concatStringsSep " " allSetupVars}; do
71 if [ "''${!var}" != "${okValue}" ]; then
72 SHOW_SETUP=true
73 break
74 fi
75 done
76
77 if [ "$SHOW_SETUP" = true ]; then
78 echo -e "${colors.blue}Setup${colors.nc}"
79 ${lib.concatStringsSep "\n" (
80 lib.imap0 (
81 i: item:
82 let
83 isLast = i == (builtins.length setup - 1);
84 icon = if isLast then "└─" else "├─";
85 paddedName = padTo 20 item.name;
86 in
87 "echo -e \"${colors.dim} ${icon} ${colors.nc}${paddedName}\${${mkVarName item.name}}\""
88 ) setup
89 )}
90 echo
91 fi
92 ''}
93
94 # 3. Render Commands Section
95 ${lib.optionalString (commands != [ ]) ''
96 echo -e "${colors.blue}Commands${colors.nc}"
97 ${lib.concatStringsSep "\n" (
98 map (
99 item:
100 let
101 paddedName = padTo 22 item.name;
102 in
103 "echo -e \" ${paddedName}${colors.dim}# ${item.help}${colors.nc}\""
104 ) commands
105 )}
106 echo
107 ''}
108 '';
109}