diff options
Diffstat (limited to 'lib/pure/os.nim')
| -rw-r--r-- | lib/pure/os.nim | 52 |
1 files changed, 30 insertions, 22 deletions
diff --git a/lib/pure/os.nim b/lib/pure/os.nim index 13c6d6113..78ebb1c88 100644 --- a/lib/pure/os.nim +++ b/lib/pure/os.nim @@ -8,7 +8,7 @@ # ## This module contains basic operating system facilities like -## retrieving environment variables, working with directories, +## retrieving environment variables, working with directories, ## running shell commands, etc. ## .. importdoc:: symlinks.nim, appdirs.nim, dirs.nim, ospaths2.nim @@ -52,7 +52,7 @@ import std/private/since import std/cmdline export cmdline -import strutils, pathnorm +import std/[strutils, pathnorm] when defined(nimPreviewSlimSystem): import std/[syncio, assertions, widestrs] @@ -76,9 +76,9 @@ since (1, 1): when weirdTarget: discard elif defined(windows): - import winlean, times + import std/[winlean, times] elif defined(posix): - import posix, times + import std/[posix, times] proc toTime(ts: Timespec): times.Time {.inline.} = result = initTime(ts.tv_sec.int64, ts.tv_nsec.int) @@ -411,9 +411,9 @@ proc execShellCmd*(command: string): int {.rtl, extern: "nos$1", ## <osproc.html#execProcess,string,string,openArray[string],StringTableRef,set[ProcessOption]>`_. ## ## **Examples:** - ## - ## .. code-block:: + ## ```Nim ## discard execShellCmd("ls -la") + ## ``` result = exitStatusLikeShell(c_system(command)) proc expandFilename*(filename: string): string {.rtl, extern: "nos$1", @@ -424,13 +424,13 @@ proc expandFilename*(filename: string): string {.rtl, extern: "nos$1", when defined(windows): var bufsize = MAX_PATH.int32 var unused: WideCString = nil - var res = newWideCString("", bufsize) + var res = newWideCString(bufsize) while true: var L = getFullPathNameW(newWideCString(filename), bufsize, res, unused) if L == 0'i32: raiseOSError(osLastError(), filename) elif L > bufsize: - res = newWideCString("", L) + res = newWideCString(L) bufsize = L else: result = res$L @@ -453,7 +453,7 @@ proc expandFilename*(filename: string): string {.rtl, extern: "nos$1", c_free(cast[pointer](r)) proc getCurrentCompilerExe*(): string {.compileTime.} = discard - ## This is `getAppFilename()`_ at compile time. + ## Returns the path of the currently running Nim compiler or nimble executable. ## ## Can be used to retrieve the currently executing ## Nim compiler from a Nim or nimscript program, or the nimble binary @@ -482,18 +482,18 @@ proc inclFilePermissions*(filename: string, permissions: set[FilePermission]) {. rtl, extern: "nos$1", tags: [ReadDirEffect, WriteDirEffect], noWeirdTarget.} = ## A convenience proc for: - ## - ## .. code-block:: nim + ## ```nim ## setFilePermissions(filename, getFilePermissions(filename)+permissions) + ## ``` setFilePermissions(filename, getFilePermissions(filename)+permissions) proc exclFilePermissions*(filename: string, permissions: set[FilePermission]) {. rtl, extern: "nos$1", tags: [ReadDirEffect, WriteDirEffect], noWeirdTarget.} = ## A convenience proc for: - ## - ## .. code-block:: nim + ## ```nim ## setFilePermissions(filename, getFilePermissions(filename)-permissions) + ## ``` setFilePermissions(filename, getFilePermissions(filename)-permissions) when not weirdTarget and (defined(freebsd) or defined(dragonfly) or defined(netbsd)): @@ -624,10 +624,12 @@ when defined(haiku): else: result = "" -proc getAppFilename*(): string {.rtl, extern: "nos$1", tags: [ReadIOEffect], noWeirdTarget.} = +proc getAppFilename*(): string {.rtl, extern: "nos$1", tags: [ReadIOEffect], noWeirdTarget, raises: [].} = ## Returns the filename of the application's executable. ## This proc will resolve symlinks. ## + ## Returns empty string when name is unavailable + ## ## See also: ## * `getAppDir proc`_ ## * `getCurrentCompilerExe proc`_ @@ -657,26 +659,29 @@ proc getAppFilename*(): string {.rtl, extern: "nos$1", tags: [ReadIOEffect], noW if getExecPath2(result.cstring, size): result = "" # error! if result.len > 0: - result = result.expandFilename + try: + result = result.expandFilename + except OSError: + result = "" else: when defined(linux) or defined(aix): result = getApplAux("/proc/self/exe") elif defined(solaris): result = getApplAux("/proc/" & $getpid() & "/path/a.out") elif defined(genode): - raiseOSError(OSErrorCode(-1), "POSIX command line not supported") + result = "" # Not supported elif defined(freebsd) or defined(dragonfly) or defined(netbsd): result = getApplFreebsd() elif defined(haiku): result = getApplHaiku() elif defined(openbsd): - result = getApplOpenBsd() + result = try: getApplOpenBsd() except OSError: "" elif defined(nintendoswitch): result = "" # little heuristic that may work on other POSIX-like systems: if result.len == 0: - result = getApplHeuristic() + result = try: getApplHeuristic() except OSError: "" proc getAppDir*(): string {.rtl, extern: "nos$1", tags: [ReadIOEffect], noWeirdTarget.} = ## Returns the directory of the application's executable. @@ -687,7 +692,10 @@ proc getAppDir*(): string {.rtl, extern: "nos$1", tags: [ReadIOEffect], noWeirdT proc sleep*(milsecs: int) {.rtl, extern: "nos$1", tags: [TimeEffect], noWeirdTarget.} = ## Sleeps `milsecs` milliseconds. + ## A negative `milsecs` causes sleep to return immediately. when defined(windows): + if milsecs < 0: + return # fixes #23732 winlean.sleep(int32(milsecs)) else: var a, b: Timespec @@ -749,14 +757,14 @@ template rawToFormalFileInfo(rawInfo, path, formalInfo): untyped = ## 'rawInfo' is either a 'BY_HANDLE_FILE_INFORMATION' structure on Windows, ## or a 'Stat' structure on posix when defined(windows): - template merge(a, b): untyped = - int64( + template merge[T](a, b): untyped = + cast[T]( (uint64(cast[uint32](a))) or (uint64(cast[uint32](b)) shl 32) ) formalInfo.id.device = rawInfo.dwVolumeSerialNumber - formalInfo.id.file = merge(rawInfo.nFileIndexLow, rawInfo.nFileIndexHigh) - formalInfo.size = merge(rawInfo.nFileSizeLow, rawInfo.nFileSizeHigh) + formalInfo.id.file = merge[FileId](rawInfo.nFileIndexLow, rawInfo.nFileIndexHigh) + formalInfo.size = merge[BiggestInt](rawInfo.nFileSizeLow, rawInfo.nFileSizeHigh) formalInfo.linkCount = rawInfo.nNumberOfLinks formalInfo.lastAccessTime = fromWinTime(rdFileTime(rawInfo.ftLastAccessTime)) formalInfo.lastWriteTime = fromWinTime(rdFileTime(rawInfo.ftLastWriteTime)) |