mirror of
https://github.com/securego/gosec.git
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90 lines
2.1 KiB
Go
90 lines
2.1 KiB
Go
// (c) Copyright 2016 Hewlett Packard Enterprise Development LP
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package main
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import (
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"fmt"
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"go/ast"
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"go/parser"
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"go/token"
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"os"
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"strings"
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)
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type command func(args ...string)
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type utilities struct {
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commands map[string]command
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call []string
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}
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// Custom commands / utilities to run instead of default analyzer
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func newUtils() *utilities {
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utils := make(map[string]command)
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utils["dump"] = dumpAst
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return &utilities{utils, make([]string, 0)}
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}
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func (u *utilities) String() string {
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i := 0
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keys := make([]string, len(u.commands))
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for k := range u.commands {
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keys[i] = k
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i++
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}
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return strings.Join(keys, ", ")
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}
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func (u *utilities) Set(opt string) error {
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if _, ok := u.commands[opt]; !ok {
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return fmt.Errorf("valid tools are: %s", u.String())
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}
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u.call = append(u.call, opt)
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return nil
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}
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func (u *utilities) run(args ...string) {
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for _, util := range u.call {
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if cmd, ok := u.commands[util]; ok {
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cmd(args...)
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}
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}
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}
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func dumpAst(files ...string) {
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for _, arg := range files {
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// Ensure file exists and not a directory
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st, e := os.Stat(arg)
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if e != nil {
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fmt.Fprintf(os.Stderr, "Skipping: %s - %s\n", arg, e)
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continue
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}
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if st.IsDir() {
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fmt.Fprintf(os.Stderr, "Skipping: %s - directory\n", arg)
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continue
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}
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// Create the AST by parsing src.
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fset := token.NewFileSet() // positions are relative to fset
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f, err := parser.ParseFile(fset, arg, nil, 0)
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if err != nil {
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fmt.Fprintf(os.Stderr, "Unable to parse file %s\n", err)
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continue
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}
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// Print the AST.
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ast.Print(fset, f)
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}
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}
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