Install a nimblemeta.json file

.gitignore

@@ -10,6 +10,7 @@
 # Any path
 *.swp
 *~
+build/
 nimcache/
 
 # Windows executables

nimbus.1

@@ -12,6 +12,7 @@
 .Op Fl Fl binDir : Ns Ar path
 .Op Fl Fl nimbleDir : Ns Ar path
 .Op Fl Fl nim : Ns Ar path
+.Op Fl Fl url : Ns Ar url
 .Op nim opts...
 .Ar sourceDir
 .Op Ar buildDir
@@ -39,6 +40,16 @@ Set the Nimble directory.
 .
 .It Fl Fl nim : Ns Ar path
 Set the Nim compiler.
+.
+.It Fl Fl url : Ns Ar url
+If this options is set,
+.Nm
+will generate and install a
+.Pa nimblemeta.json
+file.
+Some packages specify their dependencies using URLs and
+.Nm
+is unable to find them unless a metadata file exists.
 .El
 .Pp
 All unrecognized flags are passed to the Nim compiler.
@@ -48,9 +59,10 @@ All unrecognized flags are passed to the Nim compiler.
 A variable prepended to each installed target file.
 .El
 .Sh FILES
-.Bl -tag -width installer.nims
+.Bl -tag -width nimblemeta.json
 .It Pa build.ninja
 .It Pa installer.nims
+.It Pa nimblemeta.json
 .El
 .Sh EXIT STATUS
 .Ex -std

nimbus.nimble

@@ -3,7 +3,7 @@
 
 # Package
 
-version       = "0.1.0"
+version       = "0.1.1"
 author        = "Anna"
 description   = "A Nim build system."
 license       = "BSD"

src/nimbs/common.nim

@@ -2,7 +2,7 @@
 # SPDX-License-Identifier: BSD-3-Clause
 
 const
-  nimbusVersion* = "0.1.0"
+  nimbusVersion* = "0.1.1"
 
   defaultBinDir* = "/usr/local/bin"
   defaultNimbleDir* = "/opt/nimble"

src/nimbs/installerscript.nim

@@ -3,7 +3,7 @@
 
 import os, strformat
 
-import options, packageinfo
+import common, options, packageinfo
 
 proc writeCpFile(f: File, source, dest: string) =
   f.write(&"""echo "-- Installing " & destDir & "{dest}"""")
@@ -26,6 +26,10 @@ let destDir = getEnv("DESTDIR")
   f.writeCpFile(pkgInfo.nimbleFile,
                 packageDir / pkgInfo.nimbleFile.lastPathPart)
 
+  let nimbleMeta = options.getBuildDir() / packageMetadataFileName
+  if fileExists(nimbleMeta):
+    f.writeCpFile(nimbleMeta, packageDir / packageMetadataFileName)
+
   let offset = pkgInfo.getSourceDir(options).len
   for entry in pkgInfo.getInstallFiles(options):
     let dest = packageDir / entry.path.substr(offset)

src/nimbs/options.nim

@@ -12,6 +12,7 @@ type
     nimbleDir*: string
     binDir*: string
     nim*: string # Nim compiler location
+    url*: string 
     sourceDir*: string
     buildDir*: string
     logger*: ConsoleLogger
@@ -19,8 +20,8 @@ type
 
 const
   help* = """
-Usage: nimbus [-h] [--nimbleDir:path] [--binDir:path] [--nim:path] [nim opts...]
-              sourceDir [buildDir]
+Usage: nimbus [-h] [--nimbleDir:path] [--binDir:path] [--nim:path] [--url:url]
+              [nim opts...] sourceDir [buildDir]
 
 positional arguments:
   sourceDir
@@ -31,6 +32,7 @@ optional arguments:
   --nimbleDir:path    Nimble directory (default: /opt/nimble).
   --binDir:path       Executable directory (default: /usr/local/bin).
   --nim:path          Nim compiler (default: nim).
+  --url:url           Package URL.
 
 Unrecognized flags are passed to the Nim compiler.
 """
@@ -135,6 +137,7 @@ proc parseFlag*(flag, val: string, result: var Options, kind = cmdLongOption) =
   of "nimbledir": result.nimbleDir = val
   of "bindir": result.binDir = val
   of "nim": result.nim = val
+  of "url": result.url = val
   else: result.passNimFlags.add(getFlagString(kind, flag, val))
 
 proc parseCmdLine*(): Options =

src/nimbus.nim

@@ -5,7 +5,7 @@ import os, sequtils, strtabs, strutils
 
 import nimbs/common, nimbs/dependencyresolver, nimbs/installerscript,
        nimbs/ninjasyntax, nimbs/nimbleexecutor, nimbs/options,
-       nimbs/packageinfo, nimbs/version
+       nimbs/packageinfo, nimbs/packagemetadata, nimbs/version
 
 proc processDependencies(requires: seq[string], options: Options): seq[string] =
   for req in requires:
@@ -63,6 +63,13 @@ proc setup(options: Options) =
   copyFile(pkgInfo.nimbleFile, nimsFile)
   let tasks = nimsFile.getTasks(options)
 
+  if options.url.len != 0:
+    echo "-- Generating nimblemeta.json"
+    let nimblemeta = open(options.getBuildDir() / packageMetadataFileName,
+                          fmWrite)
+    nimblemeta.writeMetaData(options.url)
+    nimblemeta.close()
+
   echo "-- Generating installer script"
   let installer = open(options.getBuildDir() / installerFileName, fmWrite)
   installer.writeInstallerScript(pkgInfo, options)
@@ -82,11 +89,12 @@ proc setup(options: Options) =
   ninja.variable("builddir", options.getBuildDir())
   ninja.variable("bindir", options.getBinDir())
   ninja.variable("nimbledir", options.getNimbleDir())
+  ninja.variable("url", options.url)
   ninja.newline()
 
   ninja.rule("REGENERATE_BUILD",
     command = "$nimbus --binDir:$bindir --nimbleDir:$nimbledir --nim:$nim " &
-              "$nimflags $sourcedir $builddir",
+              "--url:$url $nimflags $sourcedir $builddir",
     description = "Regenerating build files.",
     pool = "console",
     generator = true)