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package files
import (
"fmt"
"strings"
refstore "codeberg.org/lindenii/furgit/ref/store"
)
func (executor *refUpdateExecutor) resolveOrdinaryTarget(name string, allowMissing bool) (resolvedUpdateTarget, error) {
cur := name
seen := make(map[string]struct{})
for {
if _, ok := seen[cur]; ok {
return resolvedUpdateTarget{}, fmt.Errorf("refstore/files: symbolic reference cycle at %q", cur)
}
seen[cur] = struct{}{}
refState, err := executor.directRead(cur)
if err != nil {
return resolvedUpdateTarget{}, err
}
switch refState.kind {
case directMissing:
if !allowMissing {
return resolvedUpdateTarget{}, wrapUpdateError(name, refstore.ErrReferenceNotFound)
}
return resolvedUpdateTarget{name: cur, loc: executor.store.loosePath(cur), ref: refState}, nil
case directDetached:
return resolvedUpdateTarget{name: cur, loc: executor.store.loosePath(cur), ref: refState}, nil
case directSymbolic:
target := strings.TrimSpace(refState.target)
if target == "" {
return resolvedUpdateTarget{}, wrapUpdateError(name, &refstore.InvalidValueError{
Err: fmt.Errorf("symbolic reference has empty target"),
})
}
cur = target
default:
return resolvedUpdateTarget{}, fmt.Errorf("refstore/files: unsupported direct reference state %d", refState.kind)
}
}
}
|
