Fix tests. Add test for hooks.

src/nimble.nim

@@ -859,10 +859,15 @@ proc listTasks(options: Options) =
 proc execHook(options: Options, before: bool): bool =
   ## Returns whether to continue.
   result = true
-  let nimbleFile = findNimbleFile(getCurrentDir(), true)
+  var nimbleFile = ""
+  try:
+    nimbleFile = findNimbleFile(getCurrentDir(), true)
+  except NimbleError: return true
   # PackageInfos are cached so we can read them as many times as we want.
   let pkgInfo = readPackageInfo(nimbleFile, options)
-  let actionName = ($options.action.typ)[6 .. ^1]
+  let actionName =
+    if options.action.typ == actionCustom: options.action.command
+    else: ($options.action.typ)[6 .. ^1]
   let hookExists =
     if before: actionName.normalize in pkgInfo.preHooks
     else: actionName.normalize in pkgInfo.postHooks
@@ -877,7 +882,9 @@ proc doAction(options: Options) =
   if not existsDir(options.getPkgsDir):
     createDir(options.getPkgsDir)
 
-  if not execHook(options, true): return
+  if not execHook(options, true):
+    echo("Pre-hook prevented further execution.")
+    return
   case options.action.typ
   of actionUpdate:
     update(options)

src/nimblepkg/nimscriptapi.nim

@@ -39,4 +39,6 @@ template after*(action: untyped, body: untyped): untyped =
 template builtin = discard
 
 proc getPkgDir*(): string =
+  ## Returns the package directory containing the .nimble file currently
+  ## being evaluated.
   builtin

src/nimblepkg/nimscriptsupport.nim

@@ -229,7 +229,7 @@ proc execScript(scriptName: string, flags: StringTableRef, options: Options) =
         body
 
   cbApi getPkgDir:
-    setResult(a, "FOOBAR")
+    setResult(a, scriptName.splitFile.dir)
 
   compileSystemModule()
   processModule(m, llStreamOpen(scriptName, fmRead), nil)

src/nimblepkg/packageparser.nim

@@ -230,7 +230,8 @@ proc readPackageInfo*(nf: NimbleFile, options: Options,
         raise newException(NimbleError, msg)
 
   validatePackageInfo(result, nf)
-  options.pkgInfoCache[nf] = result
+  if not result.isMinimal:
+    options.pkgInfoCache[nf] = result
 
 proc getPkgInfo*(dir: string, options: Options): PackageInfo =
   ## Find the .nimble file in ``dir`` and parses it, returning a PackageInfo.

tests/nimscript/nimscript.nimble

@@ -22,4 +22,19 @@ task cr, "Testing `nimble c -r nimscript.nim` via setCommand":
   setCommand "c", "nimscript.nim"
 
 task api, "Testing nimscriptapi module functionality":
-  echo(getPkgDir())
+  echo(getPkgDir())
+
+before hooks:
+  echo("First")
+
+task hooks, "Testing the hooks":
+  echo("Middle")
+
+after hooks:
+  echo("last")
+
+before hooks2:
+  return false
+
+task hooks2, "Testing the hooks again":
+  echo("Shouldn't happen")

tests/tester.nim

@@ -34,8 +34,7 @@ test "issue 113 (uninstallation problems)":
   let (output, exitCode) = execCmdEx(path & " remove -y c")
   let lines = output.strip.splitLines()
   check exitCode != QuitSuccess
-  check "cannot uninstall c (0.1.0) because b (0.1.0) depends on it" in
-      lines[^1].normalize
+  check inLines(lines, "cannot uninstall c (0.1.0) because b (0.1.0) depends on it")
 
   check execCmdEx(path & " remove -y a").exitCode == QuitSuccess
   check execCmdEx(path & " remove -y b").exitCode == QuitSuccess
@@ -113,6 +112,23 @@ test "can list nimscript tasks":
     check "test                 test description".normalize in output.normalize
     check exitCode == QuitSuccess
 
+test "can use pre/post hooks":
+  cd "nimscript":
+    let (output, exitCode) = execCmdEx("../" & path & " hooks")
+    let lines = output.strip.splitLines()
+    check exitCode == QuitSuccess
+    check inLines(lines, "First")
+    check inLines(lines, "middle")
+    check inLines(lines, "last")
+
+test "pre hook can prevent action":
+  cd "nimscript":
+    let (output, exitCode) = execCmdEx("../" & path & " hooks2")
+    let lines = output.strip.splitLines()
+    check exitCode == QuitSuccess
+    check(not inLines(lines, "Shouldn't happen"))
+    check inLines(lines, "Hook prevented further execution")
+
 test "can install packagebin2":
   check execCmdEx(path &
       " install -y https://github.com/nimble-test/packagebin2.git").exitCode ==