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import
future, options, os, re, sequtils, sets, strutils, tables,
utils
type
ConstraintOperation* {.pure.} = enum
ge = ">=",
gt = ">",
eq = "=",
lt = "<",
le = "<="
VersionConstraint* = tuple[
operation: ConstraintOperation,
version: string
]
PackageReference* = tuple[
name: string,
description: Option[string],
constraint: Option[VersionConstraint]
]
ArchPackageReference* = tuple[
arch: Option[string],
reference: PackageReference
]
RpcPackageInfo* = object of RootObj
repo*: string
base*: string
name*: string
version*: string
description*: Option[string]
maintainer*: Option[string]
firstSubmitted*: Option[int64]
lastModified*: Option[int64]
votes*: int
popularity*: float
PackageInfo* = object of RpcPackageInfo
archs*: seq[string]
url*: Option[string]
licenses*: seq[string]
groups*: seq[string]
depends*: seq[ArchPackageReference]
makeDepends*: seq[ArchPackageReference]
checkDepends*: seq[ArchPackageReference]
optional*: seq[ArchPackageReference]
provides*: seq[ArchPackageReference]
conflicts*: seq[ArchPackageReference]
replaces*: seq[ArchPackageReference]
gitUrl*: string
gitBranch*: Option[string]
gitCommit*: Option[string]
gitPath*: Option[string]
GitRepo* = tuple[
url: string,
branch: string,
path: string
]
PackageRepo = tuple[
os: HashSet[string],
repo: HashSet[string],
git: GitRepo
]
SrcInfoPair = tuple[key: string, value: string]
const
packageRepos: seq[PackageRepo] = @[
(["arch"].toSet,
["core", "extra", "testing"].toSet,
("https://git.archlinux.org/svntogit/packages.git",
"packages/${BASE}", "repos/${REPO}-${ARCH}")),
(["arch"].toSet,
["community", "community-testing", "multilib", "multilib-testing"].toSet,
("https://git.archlinux.org/svntogit/community.git",
"packages/${BASE}", "repos/${REPO}-${ARCH}"))
]
static:
# test only single match available
let osSet = lc[x | (r <- packageRepos, x <- r.os), string].toSet
let repoSet = lc[x | (r <- packageRepos, x <- r.repo), string].toSet
for os in osSet:
for repo in repoSet:
let osValue = os
let repoValue = repo
if packageRepos.filter(pr => osValue in pr.os and repoValue in pr.repo).len >= 2:
raise newException(SystemError,
"only single matching repo available: " & os & ":" & repo)
proc readOsId: string =
var file: File
if file.open("/usr/bin/os-release"):
try:
while true:
let rawLine = readLine(file)
if rawLine[0 .. 2] == "ID=":
return rawLine[3 .. ^1]
except EOFError:
discard
except IOError:
discard
finally:
file.close()
return "arch"
let osId = readOsId()
proc lookupGitRepo*(repo: string, base: string, arch: string): Option[GitRepo] =
template replaceAll(gitPart: string): string =
gitPart
.replace("${REPO}", repo)
.replace("${BASE}", base)
.replace("${ARCH}", arch)
packageRepos
.filter(pr => osId in pr.os and repo in pr.repo)
.map(pr => (pr.git.url.replaceAll, pr.git.branch.replaceAll, pr.git.path.replaceAll))
.optFirst
template repoPath*(tmpRoot: string, base: string): string =
tmpRoot & "/" & base
template buildPath*(repoPath: string, gitPath: Option[string]): string =
gitPath.map(p => repoPath & "/" & p).get(repoPath)
template allDepends*(pkgInfo: PackageInfo): seq[ArchPackageReference] =
pkgInfo.depends & pkgInfo.makeDepends & pkgInfo.checkDepends
proc parseSrcInfoKeys(srcInfo: string):
tuple[baseSeq: ref seq[SrcInfoPair], table: Table[string, ref seq[SrcInfoPair]]] =
var table = initTable[string, ref seq[SrcInfoPair]]()
var matches: array[2, string]
var baseSeq: ref seq[SrcInfoPair]
var values: ref seq[SrcInfoPair]
new(baseSeq)
baseSeq[] = newSeq[SrcInfoPair]()
for line in srcInfo.splitLines:
if line.match(re"[\t\ ]*(\w+)\ =\ (.*)", matches):
let key = matches[0]
let value = matches[1]
if key == "pkgbase":
values = baseSeq
elif key == "pkgname":
if table.hasKey(value):
values = table[value]
else:
new(values)
values[] = newSeq[SrcInfoPair]()
table[value] = values
if values != nil:
values[] &= (key: key, value: value)
(baseSeq: baseSeq, table: table)
proc parseSrcInfoName(repo: string, name: string, rpcInfos: seq[RpcPackageInfo],
baseSeq: ref seq[SrcInfoPair], nameSeq: ref seq[SrcInfoPair],
gitUrl: string, gitBranch: Option[string], gitCommit: Option[string],
gitPath: Option[string]): Option[PackageInfo] =
let pairs = baseSeq[] & nameSeq[]
proc collect(keyName: string): seq[string] =
lc[x.value | (x <- pairs, x.key == keyName), string]
proc splitConstraint(name: string): PackageReference =
var matches: array[3, string]
let descIndex = name.find(": ")
let (description, workName) = if descIndex >= 0:
(some(name[descIndex + 2 .. ^1]), name[0 .. descIndex - 1])
else:
(none(string), name)
if workName.match(re"([^><=]*)\ *(>|<|=|>=|<=)\ *([^ ]*)", matches):
let constraints = toSeq(enumerate[ConstraintOperation]())
let index = constraints.map(s => $s).find(matches[1])
if index >= 0:
(matches[0], description, some((constraints[index], matches[2])))
else:
(matches[0], description, none(VersionConstraint))
else:
(workName, description, none(VersionConstraint))
proc collectArch(keyName: string, arch: Option[string]): seq[ArchPackageReference] =
collect(arch.map(a => keyName & "_" & a).get(keyName))
.map(splitConstraint)
.map(c => (arch, (c.name, c.description, c.constraint)))
proc collectArchs(keyName: string, archs: seq[string]): seq[ArchPackageReference] =
let archsFull = none(string) & archs.map(some)
lc[x | (a <- archsFull, x <- collectArch(keyName, a)), ArchPackageReference]
let base = lc[x.value | (x <- baseSeq[], x.key == "pkgbase"), string].optLast
let version = collect("pkgver").optLast
let release = collect("pkgrel").optLast
let epoch = collect("epoch").optLast
let versionFull = lc[(v & "-" & r) | (v <- version, r <- release), string].optLast
.map(v => epoch.map(e => e & ":" & v).get(v))
let description = collect("pkgdesc").optLast
let archs = collect("arch").filter(a => a != "any")
let url = collect("url").optLast
let licenses = collect("license")
let groups = collect("groups")
let depends = collectArchs("depends", archs)
let makeDepends = collectArchs("makedepends", archs)
let checkDepends = collectArchs("checkdepends", archs)
let optional = collectArchs("optdepends", archs)
let provides = collectArchs("provides", archs)
let conflicts = collectArchs("conflicts", archs)
let replaces = collectArchs("replaces", archs)
let info = rpcInfos.filter(i => i.name == name).optLast
lc[PackageInfo(repo: repo, base: b, name: name, version: v, description: description,
archs: archs, url: url, licenses: licenses, groups: groups,
depends: depends, makeDepends: makeDepends, checkdepends: checkDepends,
optional: optional, provides: provides, conflicts: conflicts, replaces: replaces,
maintainer: info.map(i => i.maintainer).flatten,
firstSubmitted: info.map( i => i.firstSubmitted).flatten,
lastModified: info.map( i => i.lastModified).flatten,
votes: info.map(i => i.votes).get(0),
popularity: info.map(i => i.popularity).get(0),
gitUrl: gitUrl, gitBranch: gitBranch, gitCommit: gitCommit, gitPath: gitPath) |
(b <- base, v <- versionFull), PackageInfo].optLast
proc parseSrcInfo*(repo: string, srcInfo: string,
gitUrl: string, gitBranch: Option[string], gitCommit: Option[string],
gitPath: Option[string], rpcInfos: seq[RpcPackageInfo] = @[]): seq[PackageInfo] =
let parsed = parseSrcInfoKeys(srcInfo)
let packageSeq = toSeq(parsed.table.namedPairs)
lc[x | (pair <- packageSeq, x <- parseSrcInfoName(repo, pair.key, rpcInfos,
parsed.baseSeq, pair.value, gitUrl, gitBranch, gitCommit, gitPath)), PackageInfo]
proc `$`*(reference: PackageReference): string =
reference.constraint
.map(c => reference.name & $c.operation & c.version)
.get(reference.name)
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