android_library fails on a resource file whose name ends in a period

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
68/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Active
Tech stack
android, java
Domain
build-system, mobile

Research direction

Start by reproducing the minimal android_library example with res/raw/foo. and observe the aapt2 output and missing raw_foo..flat diagnostic. Trace how resource_files names are passed through Android resource compilation, then verify that a trailing-period resource is handled correctly or produces a clearer error.

Written by the indexing model from the issue text.

Description

A resource file whose name ends in a period fails to compile.

Minimal repro:

$ touch res/raw/foo.

android_library(
    name = "lib",
    manifest = "AndroidManifest.xml",
    resource_files = ["res/raw/foo."],
)

java.lang.IllegalArgumentException: .../raw_foo..flat does not exist after aapt2 ran.

I think we can have a better diagnositic info or treat the name correctly like AGP?

Dominant language
Java
Stars
203
Forks
95
No merged PRs in 30d

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