move prelude so that include std/prelude also works (#17110)

* move prelude so that `include std/prelude` also works

* add test

changelog.md

@@ -17,6 +17,8 @@
   `typetraits.nim` module.
 
 - `prelude` now works with the JavaScript target.
+  Added `sequtils` import to `prelude`.
+  `prelude` can now be used via `include std/prelude`, but `include prelude` still works.
 
 - Added `almostEqual` in `math` for comparing two float values using a machine epsilon.
 
@@ -94,8 +96,6 @@
   shallow copying; `lists.add` concatenates two lists - an O(1) variation that consumes
   its argument, `addMoved`, is also supplied.
 
-- Added `sequtils` import to `prelude`.
-
 - Added `euclDiv` and `euclMod` to `math`.
 - Added `httpcore.is1xx` and missing HTTP codes.
 - Added `jsconsole.jsAssert` for JavaScript target.

doc/prelude.rst

@@ -4,12 +4,12 @@ Prelude
 This is an include file that simply imports common modules for your convenience:
 
 .. code-block:: nim
-  include prelude
+  include std/prelude
 
 Same as:
 
 .. code-block:: nim
-  import os, strutils, times, parseutils, parseopt, hashes, tables, sets
+  import std/[os, strutils, times, parseutils, hashes, tables, sets, sequtils, parseopt]
 
 
 Examples
@@ -18,7 +18,7 @@ Examples
 Get the basic most common imports ready to start coding using ``prelude``:
 
 .. code-block:: nim
-  include prelude
+  include std/prelude
 
   echo now()
   echo getCurrentDir()

lib/pure/prelude.nim

@@ -11,11 +11,14 @@
 ## convenience:
 ##
 ## .. code-block:: nim
-##   include prelude
+##   include std/prelude
 ##
 ## Same as:
 ##
 ## .. code-block:: nim
-##   import os, strutils, times, parseutils, hashes, tables, sets, sequtils, parseopt
+##   import std/[os, strutils, times, parseutils, hashes, tables, sets, sequtils, parseopt]
+
+# xxx deduplicate with prelude.rst
+
+import std/[os, strutils, times, parseutils, hashes, tables, sets, sequtils, parseopt]
 
-import os, strutils, times, parseutils, hashes, tables, sets, sequtils, parseopt

tests/stdlib/tprelude.nim

@@ -0,0 +1,14 @@
+discard """
+  targets: "c js"
+  matrix: "; -d:nimTestTpreludeCase1"
+"""
+
+when defined nimTestTpreludeCase1:
+  include std/prelude
+else:
+  include prelude
+
+template main() =
+  doAssert toSeq(1..3) == @[1,2,3]
+static: main()
+main()

tools/heapdump2dot.nim

@@ -1,5 +1,5 @@
 
-include prelude
+include std/prelude
 
 proc main(input, output: string) =
   type NodeKind = enum

tools/heapdumprepl.nim

@@ -1,5 +1,5 @@
 
-include prelude
+include std/prelude
 import intsets
 
 type

tools/kochdocs.nim

@@ -143,7 +143,7 @@ lib/posix/termios.nim
 
   # some of these are include files so shouldn't be docgen'd
   ignoredModules = """
-lib/prelude.nim
+lib/pure/prelude.nim
 lib/pure/future.nim
 lib/pure/collections/hashcommon.nim
 lib/pure/collections/tableimpl.nim