/
main.go
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/
main.go
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// Copyright (c) 2023 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package main
import (
"fmt"
"log"
"path/filepath"
"github.com/jessevdk/go-flags"
"go.uber.org/thriftrw/compile"
)
var opts struct {
RelativeTo string `long:"relative-to" description:"If specified, output paths will be relative to this directory"`
Args struct {
ThriftFile string `positional-arg-name:"file" description:"Path to the Thrift file"`
} `positional-args:"yes" required:"yes"`
}
// listDependentThrifts lists the Thrift files that the given Thrift file depends on or includes, both directly (through imports) and
// indirectly (through transitive imports).
//
// The returned file paths are absolute, unless relativeTo parameter is given, in which case the paths are relative to
// the relativeTo directory.
func listDependentThrifts(input string, relativeTo string) ([]string, error) {
var deps []string
module, err := compile.Compile(input)
if err != nil {
return nil, fmt.Errorf("could not compile %q: %v", input, err)
}
err = module.Walk(func(mod *compile.Module) error {
output := mod.ThriftPath
// Do not return a self-referencing dependency
if output == input {
return nil
}
if relativeTo != "" {
output, err = filepath.Rel(relativeTo, output)
if err != nil {
return fmt.Errorf("%q depends on %q, which is not relative to %q; ensure that --relative-to"+
" is an an ancestor of %q: %v", input, output, relativeTo, output, err)
}
}
deps = append(deps, output)
return nil
})
if err != nil {
return nil, err
}
return deps, nil
}
func run() error {
if _, err := flags.Parse(&opts); err != nil {
return fmt.Errorf("error parsing arguments: %v", err)
}
file := opts.Args.ThriftFile
paths, err := listDependentThrifts(file, opts.RelativeTo)
if err != nil {
return fmt.Errorf("error listing deps of %q: %v", file, err)
}
for _, path := range paths {
fmt.Println(path)
}
return nil
}
func main() {
log.SetFlags(0) // so that the error message isn't noisy
if err := run(); err != nil {
log.Fatal(err)
}
}