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cmd/go/internal/mvs: in Upgrade, pass upgrades to buildList as upgrades

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This has no impact on the resulting build list, but provides clearer
diagnostics if reqs.Required returns an error for one of the upgraded
modules.

For #37438

Change-Id: I5cd8f72a9b7b9a0b185e1a728f46fefbd2f09b4a
Reviewed-on: https://go-review.googlesource.com/c/go/+/266897
Trust: Bryan C. Mills <bcmills@google.com>
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
This commit is contained in:
Bryan C. Mills 2020-10-30 22:13:51 -04:00
parent 4a3339223c
commit a19a4dcb98
2 changed files with 38 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

33
src/cmd/go/internal/mvs/mvs.go
View File

@ -108,11 +108,14 @@ func buildList(target module.Version, reqs Reqs, upgrade func(module.Version) (m
node := &modGraphNode{m: m}
mu.Lock()
modGraph[m] = node
if m.Version != "none" {
if v, ok := min[m.Path]; !ok || reqs.Max(v, m.Version) != v {
min[m.Path] = m.Version
}
}
mu.Unlock()
if m.Version != "none" {
required, err := reqs.Required(m)
if err != nil {
setErr(node, err)
@ -120,7 +123,6 @@ func buildList(target module.Version, reqs Reqs, upgrade func(module.Version) (m
}
node.required = required
for _, r := range node.required {
if r.Version != "none" {
work.Add(r)
}
}
@ -333,12 +335,31 @@ func Upgrade(target module.Version, reqs Reqs, upgrade ...module.Version) ([]mod
if err != nil {
return nil, err
}
// TODO: Maybe if an error is given,
// rerun with BuildList(upgrade[0], reqs) etc
// to find which ones are the buggy ones.
pathInList := make(map[string]bool, len(list))
for _, m := range list {
pathInList[m.Path] = true
}
list = append([]module.Version(nil), list...)
list = append(list, upgrade...)
return BuildList(target, &override{target, list, reqs})
upgradeTo := make(map[string]string, len(upgrade))
for _, u := range upgrade {
if !pathInList[u.Path] {
list = append(list, module.Version{Path: u.Path, Version: "none"})
}
if prev, dup := upgradeTo[u.Path]; dup {
upgradeTo[u.Path] = reqs.Max(prev, u.Version)
} else {
upgradeTo[u.Path] = u.Version
}
}
return buildList(target, &override{target, list, reqs}, func(m module.Version) (module.Version, error) {
if v, ok := upgradeTo[m.Path]; ok {
return module.Version{Path: m.Path, Version: v}, nil
}
return m, nil
})
}
// Downgrade returns a build list for the target module

4
src/cmd/go/internal/mvs/mvs_test.go
View File

@ -491,9 +491,9 @@ func (r reqsMap) Max(v1, v2 string) string {
}
func (r reqsMap) Upgrade(m module.Version) (module.Version, error) {
var u module.Version
u := module.Version{Version: "none"}
for k := range r {
if k.Path == m.Path && u.Version < k.Version && !strings.HasSuffix(k.Version, ".hidden") {
if k.Path == m.Path && r.Max(u.Version, k.Version) == k.Version && !strings.HasSuffix(k.Version, ".hidden") {
u = k
}
}