1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
|
{- git-annex usage messages
-
- Copyright 2010-2015 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU AGPL version 3 or higher.
-}
module CmdLine.Usage where
import Annex.Common
import Types.Command
usageMessage :: String -> String
usageMessage s = "Usage: " ++ s
usage :: String -> [Command] -> String
usage header cmds = unlines $ usageMessage header : commandList cmds
{- Commands listed by section, with brief usage and description. -}
commandList :: [Command] -> [String]
commandList cmds = concatMap go [minBound..]
where
go section
| null cs = []
| otherwise =
[ ""
, descSection section ++ ":"
, ""
] ++ map cmdline cs
where
cs = filter (\c -> cmdsection c == section) scmds
cmdline c = concat
[ cmdname c
, namepad (cmdname c)
, cmdparamdesc c
, descpad (cmdparamdesc c)
, cmddesc c
]
pad n s = replicate (n - length s) ' '
namepad = pad $ longest cmdname + 1
descpad = pad $ longest cmdparamdesc + 2
longest f = foldl max 0 $ map (length . f) cmds
scmds = sort cmds
{- Descriptions of params used in usage messages. -}
paramPaths :: String
paramPaths = paramRepeating paramPath -- most often used
paramPath :: String
paramPath = "PATH"
paramKey :: String
paramKey = "KEY"
paramDesc :: String
paramDesc = "DESC"
paramUrl :: String
paramUrl = "URL"
paramNumber :: String
paramNumber = "NUMBER"
paramNumRange :: String
paramNumRange = "NUM|RANGE"
paramRemote :: String
paramRemote = "REMOTE"
paramField :: String
paramField = "FIELD"
paramGlob :: String
paramGlob = "GLOB"
paramName :: String
paramName = "NAME"
paramValue :: String
paramValue = "VALUE"
paramUUID :: String
paramUUID = "UUID"
paramType :: String
paramType = "TYPE"
paramDate :: String
paramDate = "DATE"
paramTime :: String
paramTime = "TIME"
paramFormat :: String
paramFormat = "FORMAT"
paramFile :: String
paramFile = "FILE"
paramRef :: String
paramRef = "REF"
paramRefSpec :: String
paramRefSpec = "REFSPEC"
paramGroup :: String
paramGroup = "GROUP"
paramExpression :: String
paramExpression = "EXPR"
paramSize :: String
paramSize = "SIZE"
paramAddress :: String
paramAddress = "ADDRESS"
paramItem :: String
paramItem = "ITEM"
paramTreeish :: String
paramTreeish = "TREEISH"
paramParamValue :: String
paramParamValue = "PARAM=VALUE"
paramNothing :: String
paramNothing = ""
paramRepeating :: String -> String
paramRepeating s = s ++ " ..."
paramOptional :: String -> String
paramOptional s = s
paramPair :: String -> String -> String
paramPair a b = a ++ " " ++ b
paramOr :: String -> String -> String
paramOr a b = a ++ " | " ++ b
|
