mirror of
https://github.com/Adembc/lazyssh.git
synced 2026-07-14 12:13:34 +02:00
Adem BaccaraandGitHub
b7fb586e73
This PR introduces a major refactor of the SSH config parsing and writing logic. The new implementation is more robust and secure, ensuring that only the intended changes are applied while preserving the original file’s structure. Key changes - Lossless parsing/writing: Preserve unmanaged fields (e.g., `ProxyJump`), comments, and directives such as `Include` and `Match`. - Library update: Switched to [github.com/kevinburke/ssh_config](https://github.com/kevinburke/ssh_config) as the base parser, with a custom fork to support required modifications https://github.com/adembc/ssh_config. - Backup policy: Before any modification, create a backup of the SSH config file. Maintain up to 10 backups (configurable in the future) and automatically delete older ones. - IdentityFile handling: Parse IdentityFile as an array instead of a single string, with improved update logic. - Bug fix: Resolve issue where tags could not be fully removed. - Multiple aliases: Support defining and managing multiple aliases for a single server. - Testability: Code has been refactored with testability in mind. Follow-up PRs will include dedicated tests.
76 lines
2.3 KiB
Go
76 lines
2.3 KiB
Go
// Copyright 2025.
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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 ssh_config_file
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import (
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"io"
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"os"
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)
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// FileSystem interface for file operations to enable testing.
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type FileSystem interface {
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Open(name string) (io.ReadCloser, error)
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Create(name string) (io.WriteCloser, error)
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Stat(name string) (os.FileInfo, error)
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IsNotExist(err error) bool
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Remove(file string) error
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Rename(file string, path string) error
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Chmod(path string, perms os.FileMode) error
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OpenFile(path string, i int, perms os.FileMode) (*os.File, error)
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ReadDir(dir string) ([]os.DirEntry, error)
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}
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// DefaultFileSystem implements FileSystem using standard os package.
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type DefaultFileSystem struct{}
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func (fs DefaultFileSystem) Open(name string) (io.ReadCloser, error) {
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// #nosec G304 -- the file path is controlled internally, not user-supplied
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return os.Open(name)
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}
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func (fs DefaultFileSystem) Create(name string) (io.WriteCloser, error) {
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// #nosec G304 -- the file path is controlled internally, not user-supplied
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return os.Create(name)
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}
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func (fs DefaultFileSystem) Stat(name string) (os.FileInfo, error) {
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return os.Stat(name)
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}
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func (fs DefaultFileSystem) IsNotExist(err error) bool {
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return os.IsNotExist(err)
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}
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func (fs DefaultFileSystem) Remove(file string) error {
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return os.Remove(file)
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}
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func (fs DefaultFileSystem) Rename(file string, path string) error {
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return os.Rename(file, path)
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}
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func (fs DefaultFileSystem) Chmod(path string, perms os.FileMode) error {
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return os.Chmod(path, perms)
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}
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func (fs DefaultFileSystem) OpenFile(path string, i int, perms os.FileMode) (*os.File, error) {
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// #nosec G304 -- the file path is controlled internally, not user-supplied
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return os.OpenFile(path, i, perms)
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}
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func (fs DefaultFileSystem) ReadDir(dir string) ([]os.DirEntry, error) {
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return os.ReadDir(dir)
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}
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