paths are broken

[kmudrick]

I can submit a PR to show the behavior, but it seems to be flattening paths, which also causes same-named source files to get munged together instrumentation-wise.

Example: I added a directory called "foo" with two files in it: index.js and bar.js. The source of each just does a console log.

When I updated the test task to also use --include-all-sources, the html report shows:
bar.js 0% 0/1
index.js 60% 3/5

index.js - the 5 total lines is 4 from your original index.js plus 1 from my foo/index.js

In addition, clicking on index.js in the generated html report display an error: Cannot read property 'text' of undefined - from node_modules/istanbul/node_modules/istanbul-api/node_modules/istanbul-reports/lib/html/annotator.js:63:45

[kmudrick]

FWIW this is with node 4.2.2

[kmudrick]

Also, https://github.com/gotwarlost/istanbul/compare/v1 says that --include-all-sources defaults to true, but that is not the case.

[kmudrick]

Ah, I see that it defaults to using the 'package' report summarizer, which is why I am getting this behavior.

Since I could not find how or where to configure that, I tried hardcoding the exports in istanbul-api/node_modules/istanbul-lib-report/lib/summarizer.js to all use createNestedSummary - but I still see the same behavior.

[gotwarlost]

Could you please submit a PR to show the behavior? I suspect it is a problem with source-maps processing and multiple files getting mapped to the same source file.