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cmd/dep: fix vndrImporter's rev->constraint logic #1058

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merged 5 commits into from
Aug 29, 2017

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carolynvs
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@carolynvs carolynvs commented Aug 24, 2017

What does this do / why do we need it?

I missed this during my review of the original vndr PR. When I went to update the vndr tests to use the new standardized importer validations, it found some bugs when setting a constraint from a revision:

  • When a revision is specified, if it's tagged with a semver, use that to default a constraint.
  • When it's a revision, and we can't guess a constraint, use gps.Any instead of the revision itself (never pin during import).

FYI, after this is in I'll fix govend's importer in a separate PR. It isn't using gps.Any when the constraint can't be inferred.

What should your reviewer look out for in this PR?

Anything else I missed... The new validations do a good job of catching mistakes as long as we are feeding in all the appropriate test cases. I did tweak the validations to always check everything because a) it's easier and b) helps finds bugs.

Do you need help or clarification on anything?

Nope!

Which issue(s) does this PR fix?

None.

* When a revision is specified, if it's tagged with a semver, use that
  to default a constraint.
* When it's a revision, and we can't guess a constraint, use gps.Any()
  instead of the revision itself (never pin during import).
* Use the standarized validation checks for importers.
Always specify each field in the manifest/lock, so that it's easier to
tell that a test satisfies all validations.
@@ -173,6 +173,22 @@ func (a *rootAnalyzer) Info() gps.ProjectAnalyzerInfo {
}
}

// isVersion determines if the specified value is a version/tag in the project.
func isVersion(pi gps.ProjectIdentifier, value string, sm gps.SourceManager) (bool, gps.Version, error) {
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Let's add a test for this function alone?

}
pc.Constraint, err = v.sm.InferConstraint(pkg.revision, pc.Ident)

isVersion, version, err := isVersion(pc.Ident, pkg.reference, v.sm)
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@darkowlzz darkowlzz Aug 25, 2017

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A comment here would be helpful. A reference could be a version or revision. So, we need to first check if the reference is a version.
I got confused for the need of this check 😅 then looked up an example vendor.conf file.

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Yeah, the naming is confusing. I didn't even realize that a version could be stored in that field, which is why I renamed it to reference. I'll comment it up. 😀

@carolynvs carolynvs removed the request for review from sdboyer August 25, 2017 13:58
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@darkowlzz Fixed, commented and tested. 😊

}

if testcase.wantVersion != gotVersion {
t.Fatalf("Expected version for %s to be %s, got %s", value, testcase.wantVersion, gotVersion)
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GOT and WNT style logging? 😅

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Is that a standard? I thought the test failure message was clear and I'm not sure what I should be changing it to. 😊

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I guess it's our standard 😛 Have been following since Sam picked that in one of my old PRs :)

t.Fatalf("unexpected isVersion result for %s: \n\t(GOT) %v \n\t(WNT) %v", value, gotIsVersion, testcase.wantIsVersion)

t.Fatalf("unexpected version for %s: \n\t(GOT) %v \n\t(WNT) %v", value, gotVersion, testcase.wantVersion)

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Thanks for the example! I have been doing my own thing and didn't know about the new standard. I'll make sure to use it going forward.

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LGTM, once the log message format is changed.

@darkowlzz darkowlzz merged commit d230092 into golang:master Aug 29, 2017
@carolynvs carolynvs deleted the vndr-val-subtests branch October 6, 2017 15:43
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4 participants