module name conflict with .vmodules/cache and local module 'cache'

[bitmaxis]

Describe the bug

module naming conflict between local cache module and ~/.vmodules/cache

Reproduction Steps

create a cache module in your project, I am using a local xiusin.cache renamed to simply src/cache

Expected Behavior

i expected a clean compilation

Current Behavior

I have a local module defined in src/cache.
If i try to compile with default setting i get

v .
src/main.v:6:1: builder error: cannot import module "cache" (no .v files in "/home/ritchie/.vmodules/cache")
4 | import os
5 | import x.json2
6 | import cache
| ~~~~~~~~~~~~
7 |
8 | // type Any = json2.Any

after

rm -rf ~/.vmodules/cache
set -x VCACHE ~/.vmodules/kache
v .

I get a clean compile.

Specifically this effects xiusin.cache on vpm and crashes v-analyser in vscode.

Possible Solution

Suggestion is to make ~/.vmodules/cache defined in vcache.v somewhat more opaque,e.g. cache

pub fn new_cache_manager(opts []string) CacheManager {
mut vcache_basepath := os.getenv('VCACHE')
if vcache_basepath == '' {
vcache_basepath = os.join_path(os.vmodules_dir(), 'cache')
}

Additional Information/Context

No response

V version

e1480b6

Environment details (OS name and version, etc.)

ubuntu noble

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[bitmaxis]

oops, 'slightly more opaqe, e.g. cache' should have read __cache__