aboutsummaryrefslogtreecommitdiff
path: root/src/config.nim
blob: a6f65b9faed5619e318cce2e1e85b0fcf2a49951 (plain) (blame)
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
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
import
  future, options, posix, re, sets, strutils, tables,
  utils

type
  ColorMode* {.pure.} = enum
    colorNever = "never",
    colorAuto = "auto",
    colorAlways = "always"

  CommonConfig* = object of RootObj
    dbs*: seq[string]
    arch*: string
    debug*: bool
    progressBar*: bool
    verbosePkgList*: bool
    pgpKeyserver*: Option[string]
    ignorePkgs*: HashSet[string]
    ignoreGroups*: HashSet[string]

  PacmanConfig* = object of CommonConfig
    rootOption*: Option[string]
    dbOption*: Option[string]
    gpgOption*: Option[string]
    colorMode*: ColorMode

  Config* = object of CommonConfig
    root*: string
    db*: string
    tmpRoot*: string
    color*: bool
    aurComments*: bool
    checkIgnored*: bool
    printAurNotFound*: bool
    sudoExec*: bool
    viewNoDefault*: bool
    preBuildCommand*: Option[string]

proc readConfigFile*(configFile: string):
  (OrderedTable[string, ref Table[string, string]], bool) =
  var file: File
  var table = initOrderedTable[string, ref Table[string, string]]()
  var category: ref Table[string, string]
  var currentCategory = ""

  let wasError = if file.open(configFile):
      try:
        var matches: array[2, string]

        while true:
          let rawLine = readLine(file).strip(leading = false, trailing = true)
          let commentIndex = rawLine.find('#')
          let line = if commentIndex >= 0:
              rawLine[0 .. commentIndex - 1].strip(leading = false, trailing = true)
            else:
              rawLine

          if line.len > 0:
            if line.match(re"\[(.*)\]", matches):
              currentCategory = matches[0]
              if table.hasKey(currentCategory):
                category = table[currentCategory]
              else:
                category = newTable[string, string]()
                table[currentCategory] = category
            elif currentCategory.len > 0:
              if line.match(re"\ *(\w+)\ *=\ *(.*)", matches):
                category[].add(matches[0], matches[1])
              else:
                category[].add(line.strip(leading = true, trailing = false), "")

        false
      except EOFError:
        false
      except IOError:
        true
      finally:
        file.close()
    else:
      true

  (table, wasError)

proc ignored*(config: Config, name: string, groups: openArray[string]): bool =
  name in config.ignorePkgs or (config.ignoreGroups * groups.toSet).len > 0

proc isRootDefault*(config: Config): bool =
  config.root == "/"

proc get*(colorMode: ColorMode): bool =
  case colorMode:
    of ColorMode.colorNever: false
    of ColorMode.colorAlways: true
    of ColorMode.colorAuto: isatty(1) == 1

proc root*(config: PacmanConfig): string =
  config.rootOption.get("/")

proc db*(config: PacmanConfig): string =
  if config.dbOption.isSome:
    config.dbOption.unsafeGet
  else:
    let root = config.root
    let workRoot = if root == "/": "" else: root
    workRoot & localStateDir & "/lib/pacman/"

proc obtainConfig*(config: PacmanConfig): Config =
  let (configTable, _) = readConfigFile(sysConfDir & "/pakku.conf")
  let options = configTable.opt("options").map(t => t[]).get(initTable[string, string]())

  let root = config.root
  let db = config.db
  let color = config.colorMode.get

  let user = initialUser.get(currentUser)
  let tmpRoot = options.opt("TmpDir").get("/tmp/pakku-${USER}")
    .replace("${UID}", $user.uid)
    .replace("${USER}", user.name)
  let aurComments = options.hasKey("AurComments")
  let checkIgnored = options.hasKey("CheckIgnored")
  let printAurNotFound = options.hasKey("PrintAurNotFound")
  let sudoExec = options.hasKey("SudoExec")
  let viewNoDefault = options.hasKey("ViewNoDefault")
  let preBuildCommand = options.opt("PreBuildCommand")

  Config(root: root, db: db, tmpRoot: tmpRoot, color: color,
    dbs: config.dbs, arch: config.arch, debug: config.debug, progressBar: config.progressBar,
    verbosePkgList: config.verbosePkgList, pgpKeyserver: config.pgpKeyserver,
    ignorePkgs: config.ignorePkgs, ignoreGroups: config.ignoreGroups,
    aurComments: aurComments, checkIgnored: checkIgnored, printAurNotFound: printAurNotFound,
    sudoExec: sudoExec, viewNoDefault: viewNoDefault, preBuildCommand: preBuildCommand)