Pass additional koch options to the nim compiler (#11615)

Add possibility when "koch tools" command is used, nim compiler options
to be passed. The current options are kept and the new user specified
options will be added to the end of the command line if present.

Example:
> koch --latest tools -d:danger --debugInfo --lineDir:on
bin\nim.exe c -o:bin\nimsuggest.exe -d:release -d:danger -d:danger
 --debugInfo --lineDir:on nimsuggest/nimsuggest.nim
...
bin\nim.exe c -o:bin\nimgrep.exe -d:release -d:danger --debugInfo
 --lineDir:on tools/nimgrep.nim
...
bin\nim.exe c -o:bin\vccexe.exe -d:danger --debugInfo --lineDir:on
 tools/vccexe/vccexe.nim
...
bin\nim.exe c -o:bin\nimpretty.exe -d:release -d:danger --debugInfo
 --lineDir:on nimpretty/nimpretty.nim
...
bin\nim.exe c -o:bin\nimfind.exe -d:release -d:danger --debugInfo
 --lineDir:on tools/nimfind.nim
...
bin\nim.exe c -o:bin\nimble.exe --noNimblePath --nilseqs:on -d:release
 -d:danger --debugInfo --lineDir:on dist\nimble\src\nimble.nim

koch.nim

@@ -121,12 +121,13 @@ proc csource(args: string) =
            "--main:compiler/nim.nim compiler/installer.ini $1") %
        [args, VersionAsString, compileNimInst])
 
-proc bundleC2nim() =
+proc bundleC2nim(args: string) =
   if not dirExists("dist/c2nim/.git"):
     exec("git clone https://github.com/nim-lang/c2nim.git dist/c2nim")
-  nimCompile("dist/c2nim/c2nim", options = "--noNimblePath --path:.")
+  nimCompile("dist/c2nim/c2nim",
+             options = "--noNimblePath --path:. " & args)
 
-proc bundleNimbleExe(latest: bool) =
+proc bundleNimbleExe(latest: bool, args: string) =
   if not dirExists("dist/nimble/.git"):
     exec("git clone https://github.com/nim-lang/nimble.git dist/nimble")
   if not latest:
@@ -134,9 +135,10 @@ proc bundleNimbleExe(latest: bool) =
       exec("git fetch")
       exec("git checkout " & NimbleStableCommit)
   # installer.ini expects it under $nim/bin
-  nimCompile("dist/nimble/src/nimble.nim", options = "-d:release --nilseqs:on")
+  nimCompile("dist/nimble/src/nimble.nim",
+             options = "-d:release --nilseqs:on " & args)
 
-proc buildNimble(latest: bool) =
+proc buildNimble(latest: bool, args: string) =
   # if koch is used for a tar.xz, build the dist/nimble we shipped
   # with the tarball:
   var installDir = "dist/nimble"
@@ -157,29 +159,32 @@ proc buildNimble(latest: bool) =
       else:
         exec("git fetch")
         exec("git checkout " & NimbleStableCommit)
-  nimCompile(installDir / "src/nimble.nim", options = "--noNimblePath --nilseqs:on -d:release")
+  nimCompile(installDir / "src/nimble.nim",
+             options = "--noNimblePath --nilseqs:on -d:release " & args)
 
-proc bundleNimsuggest() =
-  nimCompileFold("Compile nimsuggest", "nimsuggest/nimsuggest.nim", options = "-d:release -d:danger")
+proc bundleNimsuggest(args: string) =
+  nimCompileFold("Compile nimsuggest", "nimsuggest/nimsuggest.nim",
+                 options = "-d:release -d:danger " & args)
 
-proc buildVccTool() =
-  nimCompileFold("Compile Vcc", "tools/vccexe/vccexe.nim")
+proc buildVccTool(args: string) =
+  nimCompileFold("Compile Vcc", "tools/vccexe/vccexe.nim ", options = args)
 
-proc bundleWinTools() =
-  nimCompile("tools/finish.nim", outputDir = "")
+proc bundleWinTools(args: string) =
+  nimCompile("tools/finish.nim", outputDir = "", options = args)
 
-  buildVccTool()
-  nimCompile("tools/nimgrab.nim", options = "-d:ssl")
-  nimCompile("tools/nimgrep.nim")
-  bundleC2nim()
+  buildVccTool(args)
+  nimCompile("tools/nimgrab.nim", options = "-d:ssl " & args)
+  nimCompile("tools/nimgrep.nim", options = args)
+  bundleC2nim(args)
   when false:
     # not yet a tool worth including
-    nimCompile(r"tools\downloader.nim", options = r"--cc:vcc --app:gui -d:ssl --noNimblePath --path:..\ui")
+    nimCompile(r"tools\downloader.nim",
+               options = r"--cc:vcc --app:gui -d:ssl --noNimblePath --path:..\ui " & args)
 
 proc zip(latest: bool; args: string) =
-  bundleNimbleExe(latest)
-  bundleNimsuggest()
-  bundleWinTools()
+  bundleNimbleExe(latest, args)
+  bundleNimsuggest(args)
+  bundleWinTools(args)
   nimexec("cc -r $2 --var:version=$1 --var:mingw=none --main:compiler/nim.nim scripts compiler/installer.ini" %
        [VersionAsString, compileNimInst])
   exec("$# --var:version=$# --var:mingw=none --main:compiler/nim.nim zip compiler/installer.ini" %
@@ -203,17 +208,20 @@ proc buildTool(toolname, args: string) =
   nimexec("cc $# $#" % [args, toolname])
   copyFile(dest="bin" / splitFile(toolname).name.exe, source=toolname.exe)
 
-proc buildTools() =
-  bundleNimsuggest()
-  nimCompileFold("Compile nimgrep", "tools/nimgrep.nim", options = "-d:release")
-  when defined(windows): buildVccTool()
-  nimCompileFold("Compile nimpretty", "nimpretty/nimpretty.nim", options = "-d:release")
-  nimCompileFold("Compile nimfind", "tools/nimfind.nim", options = "-d:release")
+proc buildTools(args: string = "") =
+  bundleNimsuggest(args)
+  nimCompileFold("Compile nimgrep", "tools/nimgrep.nim",
+                 options = "-d:release " & args)
+  when defined(windows): buildVccTool(args)
+  nimCompileFold("Compile nimpretty", "nimpretty/nimpretty.nim",
+                 options = "-d:release " & args)
+  nimCompileFold("Compile nimfind", "tools/nimfind.nim",
+                 options = "-d:release " & args)
 
 proc nsis(latest: bool; args: string) =
-  bundleNimbleExe(latest)
-  bundleNimsuggest()
-  bundleWinTools()
+  bundleNimbleExe(latest, args)
+  bundleNimsuggest(args)
+  bundleWinTools(args)
   # make sure we have generated the niminst executables:
   buildTool("tools/niminst/niminst", args)
   #buildTool("tools/nimgrep", args)
@@ -603,17 +611,17 @@ when isMainModule:
       of "test", "tests": tests(op.cmdLineRest)
       of "temp": temp(op.cmdLineRest)
       of "xtemp": xtemp(op.cmdLineRest)
-      of "wintools": bundleWinTools()
-      of "nimble": buildNimble(latest)
-      of "nimsuggest": bundleNimsuggest()
+      of "wintools": bundleWinTools(op.cmdLineRest)
+      of "nimble": buildNimble(latest, op.cmdLineRest)
+      of "nimsuggest": bundleNimsuggest(op.cmdLineRest)
       of "toolsnonimble":
-        buildTools()
+        buildTools(op.cmdLineRest)
       of "tools":
-        buildTools()
-        buildNimble(latest)
+        buildTools(op.cmdLineRest)
+        buildNimble(latest, op.cmdLineRest)
       of "pushcsource", "pushcsources": pushCsources()
       of "valgrind": valgrind(op.cmdLineRest)
-      of "c2nim": bundleC2nim()
+      of "c2nim": bundleC2nim(op.cmdLineRest)
       else: showHelp()
       break
     of cmdEnd: break