backend/remote: make sure we show the correct error

Previously we would show two errors when there was a version constraint
error. But of course one is enough.
This commit is contained in:
Sander van Harmelen 2019-01-23 15:09:42 +01:00
parent 15cd6d8300
commit 1e4c20686e
2 changed files with 25 additions and 23 deletions

View File

@ -214,6 +214,17 @@ func (b *Remote) Configure(obj cty.Value) tfdiags.Diagnostics {
// Discover the service URL for this host to confirm that it provides
// a remote backend API and to get the version constraints.
service, constraints, err := b.discover()
// First check any contraints we might have received.
if constraints != nil {
diags = diags.Append(b.checkConstraints(constraints))
if diags.HasErrors() {
return diags
}
}
// When we don't have any constraints errors, also check for discovery
// errors before we continue.
if err != nil {
diags = diags.Append(tfdiags.AttributeValue(
tfdiags.Error,
@ -221,15 +232,6 @@ func (b *Remote) Configure(obj cty.Value) tfdiags.Diagnostics {
"", // no description is needed here, the error is clear
cty.Path{cty.GetAttrStep{Name: "hostname"}},
))
}
// Check any retrieved constraints to make sure we are compatible.
if constraints != nil {
diags = diags.Append(b.checkConstraints(constraints))
}
// Return if we have any discovery of version constraints errors.
if diags.HasErrors() {
return diags
}
@ -391,8 +393,19 @@ func (b *Remote) checkConstraints(c *disco.Constraints) tfdiags.Diagnostics {
return diags.Append(checkConstraintsWarning(err))
}
var action, toVersion string
var excludes []*version.Version
for _, exclude := range c.Excluding {
v, err := version.NewVersion(exclude)
if err != nil {
return diags.Append(checkConstraintsWarning(err))
}
excludes = append(excludes, v)
}
// Sort all the excludes.
sort.Sort(version.Collection(excludes))
var action, toVersion string
switch {
case minimum.GreaterThan(v):
action = "upgrade"
@ -400,18 +413,7 @@ func (b *Remote) checkConstraints(c *disco.Constraints) tfdiags.Diagnostics {
case maximum.LessThan(v):
action = "downgrade"
toVersion = "<= " + maximum.String()
case len(c.Excluding) > 0:
for _, exclude := range c.Excluding {
v, err := version.NewVersion(exclude)
if err != nil {
return diags.Append(checkConstraintsWarning(err))
}
excludes = append(excludes, v)
}
// Sort all the excludes.
sort.Sort(version.Collection(excludes))
case len(excludes) > 0:
// Get the latest excluded version.
action = "upgrade"
toVersion = "> " + excludes[len(excludes)-1].String()

View File

@ -30,8 +30,8 @@ type Constraints struct {
Service string `json:"service"`
Product string `json:"product"`
Minimum string `json:"minimum"`
Excluding []string `json:"excluding"`
Maximum string `json:"maximum"`
Excluding []string `json:"excluding"`
}
// ErrServiceNotProvided is returned when the service is not provided.