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Map remote go module cache to local module cache #3079

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Apr 22, 2020
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Map remote go module cache to local module cache #3079

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ec42b49
Convert remote Go module cache paths to local Go module cache paths
fnmunhoz Feb 28, 2020
8a5a54e
Use the first gopath
ramya-rao-a Mar 23, 2020
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15 changes: 15 additions & 0 deletions src/debugAdapter/goDebug.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -854,6 +854,21 @@ class GoDebugSession extends LoggingDebugSession {
if (goroot && index > 0) {
return path.join(goroot, pathToConvert.substr(index));
}

const indexGoModCache = pathToConvert.indexOf(
`${this.remotePathSeparator}pkg${this.remotePathSeparator}mod${this.remotePathSeparator}`
);
const gopath = process.env['GOPATH'];

if (gopath && indexGoModCache > 0) {
return path.join(
gopath,
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gopath can potentially have multiple paths with the path separator specific to the OS platform. In that case, we can't use it in path.join directly this way.

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Does /pkg/mod apply to the first path in the gopath? Is there a rule around this?
Also, we need to ensure the right path separators are being used like we did in #3108

cc @quoctruong

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Does /pkg/mod apply to the first path in the gopath? Is there a rule around this?

Yes. I'm not sure where this is specified, but you can see goimports relying on this fact here.

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Thanks @stamblerre

@fnmunhoz, @quoctruong I have pushed a commit to use the first go path, can either of you test this one more time?

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@ramya-rao-a sure I'll try to do it today and let you know. Thanks.

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Hey @ramya-rao-a I just double checked the extension after the change you made and it works fine for me, I was able to debug all files, including libraries inside go mod cache.

Thanks!

pathToConvert
.substr(indexGoModCache)
.split(this.remotePathSeparator)
.join(this.localPathSeparator)
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I just thought of one problem with this logic. Even if you are replacing the local path separator by the remote path separator, path.join will normalize the path according to the platform. This means that you probably have to do the replacing part AFTER joining the path?

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We will have to do similar changes like you did to toDebuggerPath here as well. I was hoping to do that outside of this PR and have this PR focus only on the module cache part. Because the change has to applied to the goroot workaround and to the return statement a few lines below

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That sounds good.

);
}
}
return pathToConvert
.replace(this.delve.remotePath, this.delve.program)
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