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Expands tildes for entries in $PATH when looking for a binary.

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This commit is contained in:
Grzegorz Adam Hankiewicz 2015-03-16 22:01:56 +01:00
commit 79934b9d68
1 changed files with 4 additions and 2 deletions
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6
lib/pure/os.nim
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@ -1863,16 +1863,18 @@ proc getFileSize*(file: string): BiggestInt {.rtl, extern: "nos$1",
close(f) close(f)
else: raiseOSError(osLastError()) else: raiseOSError(osLastError())
proc expandTilde*(path: string): string {.tags: [ReadEnvEffect].}
proc findExe*(exe: string): string {.tags: [ReadDirEffect, ReadEnvEffect].} = proc findExe*(exe: string): string {.tags: [ReadDirEffect, ReadEnvEffect].} =
## Searches for `exe` in the current working directory and then ## Searches for `exe` in the current working directory and then
## in directories listed in the ``PATH`` environment variable. ## in directories listed in the ``PATH`` environment variable.
## Returns "" if the `exe` cannot be found. On DOS-like platforms, `exe` ## Returns "" if the `exe` cannot be found. On DOS-like platforms, `exe`
## is added an ``.exe`` file extension if it has no extension. ## is added the `ExeExt <#ExeExt>`_ file extension if it has none.
result = addFileExt(exe, os.ExeExt) result = addFileExt(exe, os.ExeExt)
if existsFile(result): return if existsFile(result): return
var path = string(os.getEnv("PATH")) var path = string(os.getEnv("PATH"))
for candidate in split(path, PathSep): for candidate in split(path, PathSep):
var x = candidate / result var x = expandTilde(candidate) / result
if existsFile(x): return x if existsFile(x): return x
result = "" result = ""