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# -------------- post unzip steps ---------------------------------------------
import strutils, os, osproc, browsers
const arch = $(sizeof(int)*8)
proc downloadMingw() =
openDefaultBrowser("http://nim-lang.org/download/mingw$1.zip" % arch)
when defined(windows):
import registry
proc askBool(m: string): bool =
stdout.write m
while true:
let answer = stdin.readLine().normalize
case answer
of "y", "yes":
return true
of "n", "no":
return false
else:
echo "Please type 'y' or 'n'"
proc askNumber(m: string; a, b: int): int =
stdout.write m
stdout.write " [" & $a & ".." & $b & "] "
while true:
let answer = stdin.readLine()
try:
result = parseInt answer
if result < a or result > b:
raise newException(ValueError, "number out of range")
break
except ValueError:
echo "Please type in a number between ", a, " and ", b
proc patchConfig(mingw: string) =
const
cfgFile = "config/nim.cfg"
lookFor = """#gcc.path = r"$nim\dist\mingw\bin""""
replacePattern = """gcc.path = r"$1""""
try:
let cfg = readFile(cfgFile)
let newCfg = cfg.replace(lookFor, replacePattern % mingw)
if newCfg == cfg:
echo "Could not patch 'config/nim.cfg' [Error]"
echo "Reason: patch substring not found:"
echo lookFor
else:
writeFile(cfgFile, newCfg)
except IOError:
echo "Could not access 'config/nim.cfg' [Error]"
proc addToPathEnv*(e: string) =
let p = getUnicodeValue(r"Environment", "Path", HKEY_CURRENT_USER)
let x = if e.contains(Whitespace): "\"" & e & "\"" else: e
setUnicodeValue(r"Environment", "Path", p & ";" & x, HKEY_CURRENT_USER)
proc createShortcut(src, dest: string; icon = "") =
var cmd = "bin\\makelink.exe \"" & src & "\" \"\" \"" & dest &
".lnk\" \"\" 1 \"" & splitFile(src).dir & "\""
if icon.len != 0:
cmd.add " \"" & icon & "\" 0"
discard execShellCmd(cmd)
proc createStartMenuEntry*(override = false) =
let appdata = getEnv("APPDATA")
if appdata.len == 0: return
let dest = appdata & r"\Microsoft\Windows\Start Menu\Programs\Nim-" &
NimVersion
if dirExists(dest): return
if override or askBool("Would like to add Nim-" & NimVersion &
" to your start menu? (y/n) "):
createDir(dest)
createShortcut(getCurrentDir() / "tools" / "start.bat", dest / "Nim",
getCurrentDir() / r"icons\nim.ico")
if fileExists("doc/overview.html"):
createShortcut(getCurrentDir() / "doc" / "html" / "overview.html",
dest / "Overview")
if dirExists(r"dist\aporia-0.4.0"):
createShortcut(getCurrentDir() / r"dist\aporia-0.4.0\bin\aporia.exe",
dest / "Aporia")
proc checkGccArch(mingw: string): bool =
let gccExe = mingw / r"gcc.exe"
if fileExists(gccExe):
try:
let arch = execProcess(gccExe, ["-dumpmachine"], nil, {poStdErrToStdOut,
poUsePath}).strip
when hostCPU == "i386":
result = (arch.contains("i686-") and not arch.contains("w64")) or
arch == "mingw32"
elif hostCPU == "amd64":
result = arch.contains("x86_64-") or arch.contains("i686-w64-mingw32")
else:
{.error: "Unknown CPU for Windows.".}
except OSError, IOError:
result = false
proc defaultMingwLocations(): seq[string] =
proc probeDir(dir: string; result: var seq[string]) =
for k, x in walkDir(dir, relative=true):
if k in {pcDir, pcLinkToDir}:
if x.contains("mingw") or x.contains("posix"):
let dest = dir / x
probeDir(dest, result)
result.add(dest)
result = @["dist/mingw", "../mingw", r"C:\mingw"]
let pfx86 = getEnv("programfiles(x86)")
let pf = getEnv("programfiles")
when hostCPU == "i386":
probeDir(pfx86, result)
probeDir(pf, result)
else:
probeDir(pf, result)
probeDir(pfx86, result)
proc tryDirs(incompat: var seq[string]; dirs: varargs[string]): string =
let bits = $(sizeof(pointer)*8)
for d in dirs:
if dirExists d:
let x = expandFilename(d / "bin")
if checkGccArch(x): return x
else: incompat.add x
elif dirExists(d & bits):
let x = expandFilename((d & bits) / "bin")
if checkGccArch(x): return x
else: incompat.add x
proc main() =
when defined(windows):
let desiredPath = expandFilename(getCurrentDir() / "bin")
let p = getUnicodeValue(r"Environment", "Path",
HKEY_CURRENT_USER)
var alreadyInPath = false
var mingWchoices: seq[string] = @[]
var incompat: seq[string] = @[]
for x in p.split(';'):
if x.len == 0: continue
let y = try: expandFilename(if x[0] == '"' and x[^1] == '"':
substr(x, 1, x.len-2) else: x)
except: ""
if y == desiredPath: alreadyInPath = true
if y.toLowerAscii.contains("mingw"):
if dirExists(y):
if checkGccArch(y): mingWchoices.add y
else: incompat.add y
if alreadyInPath:
echo "bin/nim.exe is already in your PATH [Skipping]"
else:
if askBool("nim.exe is not in your PATH environment variable.\n" &
"Should it be added permanently? (y/n) "):
addToPathEnv(desiredPath)
if mingWchoices.len == 0:
# No mingw in path, so try a few locations:
let alternative = tryDirs(incompat, defaultMingwLocations())
if alternative.len == 0:
if incompat.len > 0:
echo "The following *incompatible* MingW installations exist"
for x in incompat: echo x
echo "*incompatible* means Nim and GCC disagree on the size of a pointer."
echo "No compatible MingW candidates found " &
"in the standard locations [Error]"
if askBool("Do you want to download MingW from Nim's website? (y/n) "):
let dest = getCurrentDir() / "dist"
downloadMingw()
echo "After download, unzip it in: ", dest
echo "so that ", dest / "mingw" & arch, " exists."
if askBool("Download and unzip successful? (y/n) "):
incompat.setLen 0
let alternative = tryDirs(incompat, defaultMingwLocations())
if alternative.len == 0:
if incompat.len > 0:
echo "The following *incompatible* MingW installations exist"
for x in incompat: echo x
echo "*incompatible* means Nim and GCC disagree on the size of a pointer."
echo "Still no compatible MingW candidates found " &
"in the standard locations [Error]"
else:
echo "Patching Nim's config to use:"
echo alternative
patchConfig(alternative)
else:
if askBool("Found a MingW directory that is not in your PATH.\n" &
alternative &
"\nShould it be added to your PATH permanently? (y/n) "):
addToPathEnv(alternative)
elif askBool("Do you want to patch Nim's config to use this? (y/n) "):
patchConfig(alternative)
elif mingWchoices.len == 1:
if askBool("MingW installation found at " & mingWchoices[0] & "\n" &
"Do you want to patch Nim's config to use this?\n" &
"(Not required since it's in your PATH!) (y/n) "):
patchConfig(mingWchoices[0])
else:
echo "Multiple MingW installations found: "
for i in 0..high(mingWchoices):
echo "[", i, "] ", mingWchoices[i]
if askBool("Do you want to patch Nim's config to use one of these? (y/n) "):
let idx = askNumber("Which one do you want to use for Nim? ",
1, len(mingWchoices))
patchConfig(mingWchoices[idx-1])
createStartMenuEntry()
else:
echo("Add ", getCurrentDir(), "/bin to your PATH...")
when isMainModule:
main()
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