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feat(ssh_config): Add first version of ssh_config
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,45 @@ | ||
| package ast | ||
|
|
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| import ( | ||
| "config-lsp/common" | ||
|
|
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| "github.com/antlr4-go/antlr/v4" | ||
| ) | ||
|
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| type errorListenerContext struct { | ||
| line uint32 | ||
| } | ||
|
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| type errorListener struct { | ||
| *antlr.DefaultErrorListener | ||
| Errors []common.LSPError | ||
| context errorListenerContext | ||
| } | ||
|
|
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| func (d *errorListener) SyntaxError( | ||
| recognizer antlr.Recognizer, | ||
| offendingSymbol interface{}, | ||
| _ int, | ||
| character int, | ||
| message string, | ||
| error antlr.RecognitionException, | ||
| ) { | ||
| line := d.context.line | ||
| d.Errors = append(d.Errors, common.LSPError{ | ||
| Range: common.CreateSingleCharRange(uint32(line), uint32(character)), | ||
| Err: common.SyntaxError{ | ||
| Message: message, | ||
| }, | ||
| }) | ||
| } | ||
|
|
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| func createErrorListener( | ||
| line uint32, | ||
| ) errorListener { | ||
| return errorListener{ | ||
| Errors: make([]common.LSPError, 0), | ||
| context: errorListenerContext{ | ||
| line: line, | ||
| }, | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,35 @@ | ||
| package ast | ||
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| import "config-lsp/common" | ||
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| type ValidPath string | ||
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| func (v ValidPath) AsURI() string { | ||
| return "file://" + string(v) | ||
| } | ||
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| type SSHIndexIncludeValue struct { | ||
| common.LocationRange | ||
| Value string | ||
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| // Actual valid paths, these will be set by the analyzer | ||
| Paths []ValidPath | ||
| } | ||
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| type SSHIndexIncludeLine struct { | ||
| Values []*SSHIndexIncludeValue | ||
| Option *SSHOption | ||
| Block *SSHBlock | ||
| } | ||
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| type SSHIndexes struct { | ||
| Includes []*SSHIndexIncludeLine | ||
| } | ||
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| func NewSSHIndexes() *SSHIndexes { | ||
| return &SSHIndexes{ | ||
| Includes: make([]*SSHIndexIncludeLine, 0), | ||
| } | ||
| } | ||
|
|
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,171 @@ | ||
| package ast | ||
|
|
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| import ( | ||
| "config-lsp/common" | ||
| commonparser "config-lsp/common/parser" | ||
| "config-lsp/handlers/ssh_config/ast/parser" | ||
| "config-lsp/handlers/ssh_config/match-parser" | ||
| "strings" | ||
|
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| "github.com/emirpasic/gods/maps/treemap" | ||
| gods "github.com/emirpasic/gods/utils" | ||
| ) | ||
|
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| type sshListenerContext struct { | ||
| line uint32 | ||
| currentOption *SSHOption | ||
| currentBlock SSHBlock | ||
| currentKeyIsBlockOf *SSHBlockType | ||
| currentIndexes *SSHIndexes | ||
| } | ||
|
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| func createListenerContext() *sshListenerContext { | ||
| context := new(sshListenerContext) | ||
| context.currentIndexes = NewSSHIndexes() | ||
|
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| return context | ||
| } | ||
|
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| func createListener( | ||
| config *SSHConfig, | ||
| context *sshListenerContext, | ||
| ) sshParserListener { | ||
| return sshParserListener{ | ||
| Config: config, | ||
| Errors: make([]common.LSPError, 0), | ||
| sshContext: context, | ||
| } | ||
| } | ||
|
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| type sshParserListener struct { | ||
| *parser.BaseConfigListener | ||
| Config *SSHConfig | ||
| Errors []common.LSPError | ||
| sshContext *sshListenerContext | ||
| } | ||
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| func (s *sshParserListener) EnterEntry(ctx *parser.EntryContext) { | ||
| location := common.CharacterRangeFromCtx(ctx.BaseParserRuleContext) | ||
| location.ChangeBothLines(s.sshContext.line) | ||
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| value := commonparser.ParseRawString(ctx.GetText(), commonparser.FullFeatures) | ||
| option := &SSHOption{ | ||
| LocationRange: location, | ||
| Value: value, | ||
| } | ||
|
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| s.sshContext.currentOption = option | ||
| } | ||
|
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| func (s *sshParserListener) EnterKey(ctx *parser.KeyContext) { | ||
| location := common.CharacterRangeFromCtx(ctx.BaseParserRuleContext) | ||
| location.ChangeBothLines(s.sshContext.line) | ||
|
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| text := ctx.GetText() | ||
| value := commonparser.ParseRawString(text, commonparser.FullFeatures) | ||
| key := strings.Trim( | ||
| value.Value, | ||
| " ", | ||
| ) | ||
|
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| switch strings.ToLower(text) { | ||
| case "match": | ||
| value := SSHBlockTypeMatch | ||
| s.sshContext.currentKeyIsBlockOf = &value | ||
| case "host": | ||
| value := SSHBlockTypeHost | ||
| s.sshContext.currentKeyIsBlockOf = &value | ||
| } | ||
|
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| s.sshContext.currentOption.Key = &SSHKey{ | ||
| LocationRange: location, | ||
| Value: value, | ||
| Key: key, | ||
| } | ||
| } | ||
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| func (s *sshParserListener) EnterSeparator(ctx *parser.SeparatorContext) { | ||
| location := common.CharacterRangeFromCtx(ctx.BaseParserRuleContext) | ||
| location.ChangeBothLines(s.sshContext.line) | ||
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| text := ctx.GetText() | ||
| value := commonparser.ParseRawString(text, commonparser.FullFeatures) | ||
|
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| s.sshContext.currentOption.Separator = &SSHSeparator{ | ||
| LocationRange: location, | ||
| Value: value, | ||
| } | ||
| } | ||
|
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| func (s *sshParserListener) EnterValue(ctx *parser.ValueContext) { | ||
| location := common.CharacterRangeFromCtx(ctx.BaseParserRuleContext) | ||
| location.ChangeBothLines(s.sshContext.line) | ||
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| value := commonparser.ParseRawString(ctx.GetText(), commonparser.FullFeatures) | ||
| s.sshContext.currentOption.OptionValue = &SSHValue{ | ||
| LocationRange: location, | ||
| Value: value, | ||
| } | ||
| } | ||
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| func (s *sshParserListener) ExitEntry(ctx *parser.EntryContext) { | ||
| location := common.CharacterRangeFromCtx(ctx.BaseParserRuleContext) | ||
| location.ChangeBothLines(s.sshContext.line) | ||
|
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| defer (func() { | ||
| s.sshContext.currentOption = nil | ||
| })() | ||
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| if s.sshContext.currentKeyIsBlockOf != nil { | ||
| switch *s.sshContext.currentKeyIsBlockOf { | ||
| case SSHBlockTypeMatch: | ||
| var match *matchparser.Match | ||
|
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| matchParser := matchparser.NewMatch() | ||
| errors := matchParser.Parse( | ||
| s.sshContext.currentOption.OptionValue.Value.Raw, | ||
| location.Start.Line, | ||
| s.sshContext.currentOption.OptionValue.Start.Character, | ||
| ) | ||
|
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| if len(errors) > 0 { | ||
| for _, err := range errors { | ||
| s.Errors = append(s.Errors, common.LSPError{ | ||
| Range: err.Range.ShiftHorizontal(s.sshContext.currentOption.Start.Character), | ||
| Err: err.Err, | ||
| }) | ||
| } | ||
| } else { | ||
| match = matchParser | ||
| } | ||
|
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| matchBlock := &SSHMatchBlock{ | ||
| LocationRange: location, | ||
| MatchOption: s.sshContext.currentOption, | ||
| MatchValue: match, | ||
| Options: treemap.NewWith(gods.UInt32Comparator), | ||
| } | ||
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| s.Config.Options.Put( | ||
| location.Start.Line, | ||
| matchBlock, | ||
| ) | ||
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| s.sshContext.currentKeyIsBlockOf = nil | ||
| s.sshContext.currentBlock = matchBlock | ||
| } | ||
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| return | ||
| } | ||
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| if s.sshContext.currentBlock == nil { | ||
| s.Config.Options.Put( | ||
| location.Start.Line, | ||
| s.sshContext.currentOption, | ||
| ) | ||
| } else { | ||
| block := s.sshContext.currentBlock | ||
| block.AddOption(s.sshContext.currentOption) | ||
| block.SetEnd(location.End) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,85 @@ | ||
| package ast | ||
|
|
||
| import ( | ||
| "config-lsp/common" | ||
| "config-lsp/handlers/ssh_config/ast/parser" | ||
| "config-lsp/utils" | ||
| "regexp" | ||
|
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| "github.com/antlr4-go/antlr/v4" | ||
| "github.com/emirpasic/gods/maps/treemap" | ||
|
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| gods "github.com/emirpasic/gods/utils" | ||
| ) | ||
|
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| func NewSSHConfig() *SSHConfig { | ||
| config := &SSHConfig{} | ||
| config.Clear() | ||
|
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| return config | ||
| } | ||
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| func (c *SSHConfig) Clear() { | ||
| c.Options = treemap.NewWith(gods.UInt32Comparator) | ||
| c.CommentLines = map[uint32]struct{}{} | ||
| } | ||
|
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| var commentPattern = regexp.MustCompile(`^\s*#.*$`) | ||
| var emptyPattern = regexp.MustCompile(`^\s*$`) | ||
|
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| func (c *SSHConfig) Parse(input string) []common.LSPError { | ||
| errors := make([]common.LSPError, 0) | ||
| lines := utils.SplitIntoLines(input) | ||
| context := createListenerContext() | ||
|
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| for rawLineNumber, line := range lines { | ||
| context.line = uint32(rawLineNumber) | ||
|
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| if emptyPattern.MatchString(line) { | ||
| continue | ||
| } | ||
|
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| if commentPattern.MatchString(line) { | ||
| c.CommentLines[context.line] = struct{}{} | ||
| continue | ||
| } | ||
|
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| errors = append( | ||
| errors, | ||
| c.parseStatement(context, line)..., | ||
| ) | ||
| } | ||
|
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| return errors | ||
| } | ||
|
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| func (c *SSHConfig) parseStatement( | ||
| context *sshListenerContext, | ||
| input string, | ||
| ) []common.LSPError { | ||
| stream := antlr.NewInputStream(input) | ||
|
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| lexerErrorListener := createErrorListener(context.line) | ||
| lexer := parser.NewConfigLexer(stream) | ||
| lexer.RemoveErrorListeners() | ||
| lexer.AddErrorListener(&lexerErrorListener) | ||
|
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| tokenStream := antlr.NewCommonTokenStream(lexer, antlr.TokenDefaultChannel) | ||
|
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| parserErrorListener := createErrorListener(context.line) | ||
| antlrParser := parser.NewConfigParser(tokenStream) | ||
| antlrParser.RemoveErrorListeners() | ||
| antlrParser.AddErrorListener(&parserErrorListener) | ||
|
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| listener := createListener(c, context) | ||
| antlr.ParseTreeWalkerDefault.Walk( | ||
| &listener, | ||
| antlrParser.LineStatement(), | ||
| ) | ||
|
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| errors := lexerErrorListener.Errors | ||
| errors = append(errors, parserErrorListener.Errors...) | ||
| errors = append(errors, listener.Errors...) | ||
|
|
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| return errors | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
|
|
@@ -2,4 +2,5 @@ HASH=1 | |
| WHITESPACE=2 | ||
| STRING=3 | ||
| NEWLINE=4 | ||
| QUOTED_STRING=5 | ||
| '#'=1 | ||
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