BUG: hidden app roots (v2) (#107)

* Add `commonRoot` to `versions` metadata to indicate what installed paths are relative to.
* BUG: Detect hidden application roots for things like `yarn` workspaces that are completely flattened.
  [#103](#103)

HISTORY.md

@@ -1,21 +1,27 @@
 History
 =======
 
+## UNRELEASED
+
+* Add `commonRoot` to `versions` metadata to indicate what installed paths are relative to.
+* BUG: Detect hidden application roots for things like `yarn` workspaces that are completely flattened.
+  [#103](https://github.com/FormidableLabs/inspectpack/issues/103)
+
 ## 4.1.2
 
-- BUG: Use `name` field to better process `identifier` to remove things like
+* BUG: Use `name` field to better process `identifier` to remove things like
   `/PATH/TO/node_modules/font-awesome/font-awesome.css 0"`. May result in some
   `baseName`s being identical despite different `identifier`s because of
   loaders and generated code.
 
 ## 4.1.1
 
-- BUG: A loader in the `identifier` field would incorrectly have all modules inferred "as a `node_modules` file", even if not. Implements a naive loader stripping heuristic to correctly assess if `node_modules` or real application source.
-- Optimizes internal calls to `_isNodeModules()` from 2 to 1 for better performance.
+* BUG: A loader in the `identifier` field would incorrectly have all modules inferred "as a `node_modules` file", even if not. Implements a naive loader stripping heuristic to correctly assess if `node_modules` or real application source.
+* Optimizes internal calls to `_isNodeModules()` from 2 to 1 for better performance.
 
 ## 4.1.0
 
-- Add `emitHandler` option to `DuplicatesPlugin` to allow customized output.
+* Add `emitHandler` option to `DuplicatesPlugin` to allow customized output.
 
 ## 4.0.1
 
@@ -29,7 +35,7 @@ History
 * `--action=versions`:
     * _Reports_: The `tsv` and `text` reports have now changed to reflect
       dependencies hierarchies as _installed_ (e.g., `[email protected] ->
-      [email protected] -> @scope/foo@1.1.1`) to a semever range meaning
+      [email protected] -> @scope/foo@1.1.1`) to a semver range meaning
       something like as _depended_ (e.g., `[email protected] -> flattened-foo@^1.1.0
       -> @scope/foo@^1.1.1`). We expect that this change will provide much more
       useful information as to how and why your dependency graph impacts what is
@@ -57,9 +63,9 @@ History
 
 ### Miscellaneous
 
-- Updated README.md with note that `--action=versions` is not filtered to only
+* Updated README.md with note that `--action=versions` is not filtered to only
   packages that would have files show up in the `--action=duplicates` report.
-- Update `--action=versions` logic to explicitly use `semver-compare` for sort
+* Update `--action=versions` logic to explicitly use `semver-compare` for sort
   order.
 
 ## 3.0.0

README.md

@@ -486,8 +486,8 @@ Other tools that inspect Webpack bundles:
 
 [npm_img]: https://badge.fury.io/js/inspectpack.svg
 [npm_site]: http://badge.fury.io/js/inspectpack
-[trav_img]: https://api.travis-ci.org/FormidableLabs/inspectpack.svg
-[trav_site]: https://travis-ci.org/FormidableLabs/inspectpack
+[trav_img]: https://api.travis-ci.com/FormidableLabs/inspectpack.svg
+[trav_site]: https://travis-ci.com/FormidableLabs/inspectpack
 [appveyor_img]: https://ci.appveyor.com/api/projects/status/github/formidablelabs/inspectpack?branch=master&svg=true
 [appveyor_site]: https://ci.appveyor.com/project/FormidableLabs/inspectpack
 [cov]: https://codecov.io

src/lib/actions/base.ts

@@ -51,6 +51,9 @@ export const _isNodeModules = (name: string): boolean => nodeModulesParts(name).
 // First, strip off anything before a `?` and `!`:
 // - `REMOVE?KEEP`
 // - `REMOVE!KEEP`
+//
+// TODO(106): Revise code and tests for `fullPath`.
+// https://github.com/FormidableLabs/inspectpack/issues/106
 export const _normalizeWebpackPath = (identifier: string, name?: string): string => {
   const bangLastIdx = identifier.lastIndexOf("!");
   const questionLastIdx = identifier.lastIndexOf("?");
@@ -63,6 +66,9 @@ export const _normalizeWebpackPath = (identifier: string, name?: string): string
     candidate = candidate.substr(prefixEnd + 1);
   }
 
+  // Naive heuristic: remove known starting webpack tokens.
+  candidate = candidate.replace(/^(multi |ignored )/, "");
+
   // Assume a normalized then truncate to name if applicable.
   //
   // E.g.,