Fixes #531. Fixes #393. Replaces #465.

src/nimble.nim

@@ -190,11 +190,6 @@ proc processDeps(pkginfo: PackageInfo, options: Options): seq[PackageInfo] =
       else:
         display("Info:", "Dependency on $1 already satisfied" % $dep,
                 priority = HighPriority)
-        if pkg.isLinked:
-          # TODO (#393): This can be optimised since the .nimble-link files have
-          # a secondary line that specifies the srcDir.
-          pkg = pkg.toFullInfo(options)
-
         result.add(pkg)
         # Process the dependencies of this dependency.
         result.add(processDeps(pkg.toFullInfo(options), options))
@@ -627,23 +622,19 @@ proc listPaths(options: Options) =
     raise newException(NimbleError, "A package name needs to be specified")
 
   var errors = 0
+  let pkgs = getInstalledPkgsMin(options.getPkgsDir(), options)
   for name, version in options.action.packages.items:
     var installed: seq[VersionAndPath] = @[]
     # There may be several, list all available ones and sort by version.
-    for kind, path in walkDir(options.getPkgsDir):
-      if kind != pcDir or not path.startsWith(options.getPkgsDir / name & "-"):
-        continue
-
-      var nimbleFile = findNimbleFile(path, false)
-      if nimbleFile.existsFile:
-        var pkgInfo = getPkgInfo(path, options)
+    for x in pkgs.items():
+      let
+        pName = x.pkginfo.name
+        pVer = x.pkginfo.specialVersion
+      if name == pName:
         var v: VersionAndPath
-        v.version = newVersion(pkgInfo.specialVersion)
-        v.path = pkgInfo.getRealDir()
+        v.version = newVersion(pVer)
+        v.path = x.pkginfo.getRealDir()
         installed.add(v)
-      else:
-        display("Warning:", "No .nimble file found for " & path, Warning,
-                MediumPriority)
 
     if installed.len > 0:
       sort(installed, cmp[VersionAndPath], Descending)

src/nimblepkg/packageinfo.nim

@@ -336,8 +336,17 @@ proc getInstalledPkgsMin*(libsDir: string, options: Options):
         pkg.specialVersion = version
         pkg.isMinimal = true
         pkg.isInstalled = true
-        pkg.isLinked =
-          cmpPaths(nimbleFile.splitFile().dir, path) != 0
+        let nimbleFileDir = nimbleFile.splitFile().dir
+        pkg.isLinked = cmpPaths(nimbleFileDir, path) != 0
+
+        # Read the package's 'srcDir' (this is stored in the .nimble-link so
+        # we can easily grab it)
+        if pkg.isLinked:
+          let nimbleLinkPath = path / name.addFileExt("nimble-link")
+          let realSrcPath = readNimbleLink(nimbleLinkPath).packageDir
+          assert realSrcPath.startsWith(nimbleFileDir)
+          pkg.srcDir = realSrcPath.replace(nimbleFileDir)
+          pkg.srcDir.removePrefix(DirSep)
         result.add((pkg, meta))
 
 proc withinRange*(pkgInfo: PackageInfo, verRange: VersionRange): bool =