69 lines
No EOL
2.2 KiB
Nim
69 lines
No EOL
2.2 KiB
Nim
# Copyright (C) Dominik Picheta. All rights reserved.
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# BSD License. Look at license.txt for more info.
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#
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# Various miscellaneous utility functions reside here.
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import osproc, pegs, strutils, os, parseurl
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import version, common, packageinfo
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# TODO: Merge with common.nim?
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proc doCmd*(cmd: string) =
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let exitCode = execCmd(cmd)
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if exitCode != QuitSuccess:
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raise newException(EBabel, "Execution failed with exit code " & $exitCode)
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template cd*(dir: string, body: stmt) =
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## Sets the current dir to ``dir``, executes ``body`` and restores the
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## previous working dir.
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let lastDir = getCurrentDir()
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setCurrentDir(dir)
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body
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setCurrentDir(lastDir)
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proc getNimrodVersion*: TVersion =
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let vOutput = execProcess("nimrod -v")
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var matches: array[0..MaxSubpatterns, string]
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if vOutput.find(peg"'Version'\s{(\d\.)+\d}", matches) == -1:
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quit("Couldn't find Nimrod version.", QuitFailure)
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newVersion(matches[0])
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proc samePaths*(p1, p2: string): bool =
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## Normalizes path (by adding a trailing slash) and compares.
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var cp1 = if not p1.endsWith("/"): p1 & "/" else: p1
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var cp2 = if not p2.endsWith("/"): p2 & "/" else: p2
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cp1 = cp1.replace('/', DirSep).replace('\\', DirSep)
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cp2 = cp2.replace('/', DirSep).replace('\\', DirSep)
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return cmpPaths(cp1, cp2) == 0
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proc changeRoot*(origRoot, newRoot, path: string): string =
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## origRoot: /home/dom/
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## newRoot: /home/test/
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## path: /home/dom/bar/blah/2/foo.txt
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## Return value -> /home/test/bar/blah/2/foo.txt
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if path.startsWith(origRoot):
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return newRoot / path[origRoot.len .. -1]
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else:
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raise newException(EInvalidValue,
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"Cannot change root of path: Path does not begin with original root.")
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proc getDownloadDirName*(url: string, verRange: PVersionRange): string =
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## Creates a directory name based on the specified ``url``
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result = ""
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let purl = parseUrl(url)
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for i in purl.hostname:
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case i
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of strutils.Letters, strutils.Digits:
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result.add i
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else: nil
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result.add "_"
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for i in purl.path:
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case i
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of strutils.Letters, strutils.Digits:
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result.add i
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else: nil
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result.add "_"
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result.add getSimpleString(verRange)
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proc getDownloadDirName*(pkg: TPackage, verRange: PVersionRange): string =
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result = pkg.name & "_" & verRange.getSimpleString |