Use package info for nimble path when available (nim-lang#1344)

This change updates the nimble path command so it respects the
local package configuration when executed within a nimble package.

Author: Nycto

src/nimble.nim

@@ -1130,27 +1130,35 @@ proc listPaths(options: Options) =
   if options.action.packages.len == 0:
     raise 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 pkg in pkgs:
-      if name == pkg.basicInfo.name and withinRange(pkg.basicInfo.version, version):
-        installed.add((pkg.basicInfo.version, pkg.getRealDir))
-
-    if installed.len > 0:
-      sort(installed, cmp[VersionAndPath], Descending)
-      # The output for this command is used by tools so we do not use display().
-      for pkg in installed:
-        echo pkg.path
-    else:
-      display("Warning:", "Package '$1' is not installed" % name, Warning,
-              MediumPriority)
-      errors += 1
-  if errors > 0:
-    raise nimbleError(
-        "At least one of the specified packages was not found")
+  let pkgInfo = maybeGetPkgInfo(getCurrentDir(), options)
+  if pkgInfo.isSome:
+    let searchNames = options.action.packages.mapIt(it.name).toHashSet
+    for dep in pkgInfo.get.processAllDependencies(options):
+      if dep.basicInfo.name in searchNames:
+        for path in dep.expandPaths(options):
+          echo path
+  else:
+    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 pkg in pkgs:
+        if name == pkg.basicInfo.name and withinRange(pkg.basicInfo.version, version):
+          installed.add((pkg.basicInfo.version, pkg.getRealDir))
+
+      if installed.len > 0:
+        sort(installed, cmp[VersionAndPath], Descending)
+        # The output for this command is used by tools so we do not use display().
+        for pkg in installed:
+          echo pkg.path
+      else:
+        display("Warning:", "Package '$1' is not installed" % name, Warning,
+                MediumPriority)
+        errors += 1
+    if errors > 0:
+      raise nimbleError(
+          "At least one of the specified packages was not found")
 
 proc join(x: seq[PkgTuple]; y: string): string =
   if x.len == 0: return ""

src/nimblepkg/packageparser.nim

@@ -1,6 +1,6 @@
 # Copyright (C) Dominik Picheta. All rights reserved.
 # BSD License. Look at license.txt for more info.
-import parsecfg, sets, streams, strutils, os, tables, sugar, strformat
+import std/[parsecfg, sets, streams, strutils, os, tables, sugar, strformat, options]
 from sequtils import apply, map, toSeq
 
 import common, version, tools, nimscriptwrapper, options, cli, sha1hashes,
@@ -389,6 +389,12 @@ proc getPkgInfo*(dir: string, options: Options, forValidation = false):
   let nimbleFile = findNimbleFile(dir, true, options)
   result = getPkgInfoFromFile(nimbleFile, options, forValidation)
 
+proc maybeGetPkgInfo*(dir: string, options: Options): Option[PackageInfo] =
+  try:
+    return some(getPkgInfo(dir, options))
+  except NimbleError:
+    return none(PackageInfo)
+
 proc getInstalledPkgs*(libsDir: string, options: Options): seq[PackageInfo] =
   ## Gets a list of installed packages.
   ##

tests/pathWithDevelop/nimble.develop

@@ -0,0 +1,7 @@
+{
+  "version": 1,
+  "includes": [],
+  "dependencies": [
+    "../deps"
+  ]
+}

tests/pathWithDevelop/pathWithDevelop.nimble

@@ -0,0 +1,6 @@
+version       = "0.1.0"
+author        = "Ivan Yonchovski"
+description   = "Nim package manager."
+license       = "BSD"
+
+requires "deps"

tests/tpathcommand.nim

@@ -22,3 +22,17 @@ suite "path command":
       check exitCode == QuitSuccess
     check execNimble("path", "[email protected]").exitCode == QuitSuccess
     check execNimble("path", "[email protected]").exitCode != QuitSuccess
+
+  test "Use current nimble package to determine path when possible":
+    cd "deps":
+      check execNimbleYes("install").exitCode == QuitSuccess
+      let (output, exitCode) = execNimble("path", "timezones")
+      check(exitCode == QuitSuccess)
+      check output.strip() == getPackageDir(pkgsDir, "timezones-0.5.4")
+
+  test "Respect develop overrides for nimble packages":
+    cd "pathWithDevelop":
+      let (output, exitCode) = execNimble("path", "deps")
+      check(exitCode == QuitSuccess)
+      checkpoint "Nimble path output was: " & output
+      check output.startsWith(expandFilename("../deps"))