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#
#
# The Nim Compiler
# (c) Copyright 2017 Andreas Rumpf
#
# See the file "copying.txt", included in this
# distribution, for details about the copyright.
#
iterator myParentDirs(p: string): string =
# XXX os's parentDirs is stupid (multiple yields) and triggers an old bug...
var current = p
while true:
current = current.parentDir
if current.len == 0: break
yield current
proc resetPackageCache*(conf: ConfigRef) =
conf.packageCache = newPackageCache()
proc getPackageName*(conf: ConfigRef; path: string): string =
var parents = 0
block packageSearch:
for d in myParentDirs(path):
if conf.packageCache.hasKey(d):
#echo "from cache ", d, " |", packageCache[d], "|", path.splitFile.name
return conf.packageCache[d]
inc parents
for file in walkFiles(d / "*.nimble"):
result = file.splitFile.name
break packageSearch
# we also store if we didn't find anything:
when not defined(nimNoNilSeqs):
if result.isNil: result = ""
for d in myParentDirs(path):
#echo "set cache ", d, " |", result, "|", parents
conf.packageCache[d] = result
dec parents
if parents <= 0: break
proc fakePackageName*(conf: ConfigRef; path: AbsoluteFile): string =
# foo/../bar becomes foo7_7bar
result = relativeTo(path, conf.projectPath, '/').string.multiReplace(
{"/": "7", "..": "_", "7": "77", "_": "__", ":": "8", "8": "88"})
proc demanglePackageName*(path: string): string =
result = path.multiReplace(
{"88": "8", "8": ":", "77": "7", "__": "_", "_7": "../", "7": "/"})
proc withPackageName*(conf: ConfigRef; path: AbsoluteFile): AbsoluteFile =
let x = getPackageName(conf, path.string)
if x.len == 0:
result = path
else:
let (p, file, ext) = path.splitFile
if x == "stdlib":
# Hot code reloading now relies on 'stdlib_system' names etc.
result = p / RelativeFile((x & '_' & file) & ext)
else:
result = p / RelativeFile(fakePackageName(conf, path))
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