HEPH-31: Creating Heph Language Server

backend/go/BUILD

@@ -245,7 +245,7 @@ def go_mod(
         out = "/**/BUILD",
         deps = {"cfg": godeps_cfg},
         runtime_deps = {"deps": godeps_deps},
-        hash_deps = [imports, gomodsum],
+        hash_deps = [gomodsum, imports] + mod_pkg_modsums,
         tools = godeps,
         env = {
             "GOOS": get_os(),

cmd/heph/lsp.go

@@ -0,0 +1,46 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/hephbuild/heph/bootstrap"
+	"github.com/hephbuild/heph/lsp"
+	"github.com/spf13/cobra"
+)
+
+func init() {
+	lspCommand.AddCommand(servelspCmd)
+}
+
+var lspCommand = &cobra.Command{
+	Use:     "lsp",
+	Aliases: []string{"lsp"},
+	Short:   "Heph Language Server",
+	Args:    cobra.RangeArgs(0, 1),
+	RunE: func(cmd *cobra.Command, args []string) error {
+		return fmt.Errorf("run heph Language Server with `serve`")
+	},
+}
+
+var servelspCmd = &cobra.Command{
+	Use:               "serve",
+	Short:             "Serve LSP",
+	Aliases:           []string{"s"},
+	ValidArgsFunction: ValidArgsFunctionTargets,
+	RunE: func(cmd *cobra.Command, args []string) error {
+		ctx := cmd.Context()
+
+		localOpt := bootstrap.BootOpts{}
+		bs, err := bootstrap.BootBase(ctx, localOpt)
+		if err != nil {
+			return err
+		}
+
+		server, err := lsp.NewHephServer(bs.Root)
+		if err != nil {
+			return err
+		}
+
+		return server.Serve()
+	},
+}

cmd/heph/root.go

@@ -86,6 +86,7 @@ func init() {
 	rootCmd.AddCommand(runCmd)
 	rootCmd.AddCommand(cleanCmd)
 	rootCmd.AddCommand(queryCmd)
+	rootCmd.AddCommand(lspCommand)
 	rootCmd.AddCommand(cloudCmd)
 	rootCmd.AddCommand(gcCmd)
 	rootCmd.AddCommand(validateCmd)

cmd/heph/utils.go

@@ -11,10 +11,7 @@ func ValidArgsFunctionTargets(cmd *cobra.Command, args []string, toComplete stri
 	}
 
 	directive := cobra.ShellCompDirectiveNoFileComp
-	isFuzzy, suggestions := autocompleteTargetName(targets, toComplete)
-	if isFuzzy {
-		directive |= cobra.ShellCompDirectiveNoMatching
-	}
+	_, suggestions := autocompleteTargetName(targets, toComplete)
 
 	return suggestions, directive
 }
@@ -26,10 +23,7 @@ func ValidArgsFunctionLabelsOrTargets(cmd *cobra.Command, args []string, toCompl
 	}
 
 	directive := cobra.ShellCompDirectiveNoFileComp
-	isFuzzy, suggestions := autocompleteLabelOrTarget(targets, labels, toComplete)
-	if isFuzzy {
-		directive |= cobra.ShellCompDirectiveNoMatching
-	}
+	_, suggestions := autocompleteLabelOrTarget(targets, labels, toComplete)
 
 	return suggestions, directive
 }

go.mod

@@ -1,11 +1,10 @@
 module github.com/hephbuild/heph
 
-go 1.22
+go 1.25.1
 
 replace github.com/spf13/cobra v1.7.0 => github.com/raphaelvigee/cobra v0.0.0-20221020122344-217ca52feee0
 
 require (
-	cloud.google.com/go/storage v1.34.1
 	github.com/Khan/genqlient v0.6.0
 	github.com/aarondl/json v0.0.0-20221020222930-8b0db17ef1bf
 	github.com/aarondl/opt v0.0.0-20230313190023-85d93d668fec
@@ -18,24 +17,28 @@ require (
 	github.com/charmbracelet/bubbletea v0.26.2
 	github.com/charmbracelet/lipgloss v0.9.1
 	github.com/coreos/go-semver v0.3.1
-	github.com/creack/pty v1.1.20
+	github.com/creack/pty v1.1.24
 	github.com/dlsniper/debugger v0.6.0
-	github.com/fsnotify/fsnotify v1.7.0
-	github.com/google/uuid v1.4.0
+	github.com/fsnotify/fsnotify v1.9.0
+	github.com/google/uuid v1.6.0
 	github.com/heimdalr/dag v1.3.1
 	github.com/hinshun/vt10x v0.0.0-20220301184237-5011da428d02
 	github.com/itchyny/gojq v0.12.13
 	github.com/lithammer/fuzzysearch v1.1.8
 	github.com/mattn/go-isatty v0.0.20
 	github.com/mitchellh/go-homedir v1.1.0
 	github.com/muesli/reflow v0.3.0
-	github.com/muesli/termenv v0.15.2
+	github.com/muesli/termenv v0.16.0
 	github.com/olekukonko/tablewriter v0.0.5
 	github.com/pbnjay/memory v0.0.0-20210728143218-7b4eea64cf58
 	github.com/shirou/gopsutil/v3 v3.23.10
-	github.com/spf13/cobra v1.7.0
-	github.com/spf13/pflag v1.0.5
-	github.com/stretchr/testify v1.8.4
+	github.com/spf13/cobra v1.10.1
+	github.com/spf13/pflag v1.0.10
+	github.com/stretchr/testify v1.10.0
+	github.com/tliron/commonlog v0.2.21
+	github.com/tliron/glsp v0.2.2
+	github.com/tree-sitter/go-tree-sitter v0.25.0
+	github.com/tree-sitter/tree-sitter-python v0.25.0
 	github.com/viney-shih/go-lock v1.1.2
 	github.com/vmihailenco/msgpack/v5 v5.4.1
 	github.com/zeebo/xxh3 v1.0.2
@@ -46,18 +49,17 @@ require (
 	go.starlark.net v0.0.0-20231101134539-556fd59b42f6
 	go.uber.org/multierr v1.11.0
 	golang.org/x/exp v0.0.0-20231006140011-7918f672742d
-	golang.org/x/net v0.17.0
-	golang.org/x/sys v0.20.0
-	golang.org/x/term v0.20.0
-	google.golang.org/api v0.149.0
+	golang.org/x/net v0.43.0
+	golang.org/x/sys v0.36.0
+	golang.org/x/term v0.35.0
 	gopkg.in/yaml.v3 v3.0.1
 )
 
 require (
 	cloud.google.com/go v0.110.10 // indirect
-	cloud.google.com/go/compute v1.23.3 // indirect
-	cloud.google.com/go/compute/metadata v0.2.3 // indirect
+	cloud.google.com/go/compute/metadata v0.3.0 // indirect
 	cloud.google.com/go/iam v1.1.5 // indirect
+	cloud.google.com/go/storage v1.34.1 // indirect
 	github.com/RoaringBitmap/roaring v1.6.0 // indirect
 	github.com/agnivade/levenshtein v1.1.1 // indirect
 	github.com/alexflint/go-arg v1.4.3 // indirect
@@ -80,10 +82,10 @@ require (
 	github.com/blevesearch/zapx/v13 v13.3.10 // indirect
 	github.com/blevesearch/zapx/v14 v14.3.10 // indirect
 	github.com/blevesearch/zapx/v15 v15.3.13 // indirect
-	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
 	github.com/emirpasic/gods v1.18.1 // indirect
 	github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f // indirect
-	github.com/go-logr/logr v1.3.0 // indirect
+	github.com/go-logr/logr v1.4.2 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/go-ole/go-ole v1.3.0 // indirect
 	github.com/golang/geo v0.0.0-20230421003525-6adc56603217 // indirect
@@ -93,6 +95,8 @@ require (
 	github.com/google/s2a-go v0.1.7 // indirect
 	github.com/googleapis/enterprise-certificate-proxy v0.3.2 // indirect
 	github.com/googleapis/gax-go/v2 v2.12.0 // indirect
+	github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674 // indirect
+	github.com/iancoleman/strcase v0.3.0 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/itchyny/timefmt-go v0.1.5 // indirect
 	github.com/jmespath/go-jmespath v0.4.0 // indirect
@@ -103,41 +107,47 @@ require (
 	github.com/lucasb-eyer/go-colorful v1.2.0 // indirect
 	github.com/lufia/plan9stats v0.0.0-20231016141302-07b5767bb0ed // indirect
 	github.com/mattn/go-localereader v0.0.1 // indirect
+	github.com/mattn/go-pointer v0.0.1 // indirect
 	github.com/mattn/go-runewidth v0.0.15 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
-	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/modern-go/reflect2 v1.0.3-0.20250322232337-35a7c28c31ee // indirect
 	github.com/mschoch/smat v0.2.0 // indirect
 	github.com/muesli/ansi v0.0.0-20230316100256-276c6243b2f6 // indirect
 	github.com/muesli/cancelreader v0.2.2 // indirect
+	github.com/petermattis/goid v0.0.0-20250813065127-a731cc31b4fe // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pkg/sftp v1.13.6 // indirect
-	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
 	github.com/power-devops/perfstat v0.0.0-20221212215047-62379fc7944b // indirect
-	github.com/rivo/uniseg v0.4.6 // indirect
+	github.com/rivo/uniseg v0.4.7 // indirect
 	github.com/sahilm/fuzzy v0.1.1-0.20230530133925-c48e322e2a8f // indirect
+	github.com/sasha-s/go-deadlock v0.3.6 // indirect
+	github.com/segmentio/ksuid v1.0.4 // indirect
 	github.com/shoenig/go-m1cpu v0.1.6 // indirect
-	github.com/stretchr/objx v0.5.1 // indirect
+	github.com/sourcegraph/jsonrpc2 v0.2.0 // indirect
+	github.com/stretchr/objx v0.5.2 // indirect
 	github.com/tklauser/go-sysconf v0.3.12 // indirect
 	github.com/tklauser/numcpus v0.6.1 // indirect
+	github.com/tliron/go-kutil v0.4.0 // indirect
 	github.com/vektah/gqlparser/v2 v2.5.10 // indirect
 	github.com/vmihailenco/tagparser/v2 v2.0.0 // indirect
 	github.com/yusufpapurcu/wmi v1.2.3 // indirect
 	go.etcd.io/bbolt v1.3.8 // indirect
 	go.opencensus.io v0.24.0 // indirect
 	go.opentelemetry.io/otel/metric v1.19.0 // indirect
-	golang.org/x/crypto v0.14.0 // indirect
-	golang.org/x/mod v0.14.0 // indirect
-	golang.org/x/oauth2 v0.13.0 // indirect
-	golang.org/x/sync v0.7.0 // indirect
-	golang.org/x/text v0.14.0 // indirect
-	golang.org/x/tools v0.14.0 // indirect
+	golang.org/x/crypto v0.42.0 // indirect
+	golang.org/x/mod v0.27.0 // indirect
+	golang.org/x/oauth2 v0.27.0 // indirect
+	golang.org/x/sync v0.17.0 // indirect
+	golang.org/x/text v0.29.0 // indirect
+	golang.org/x/tools v0.36.0 // indirect
 	golang.org/x/xerrors v0.0.0-20231012003039-104605ab7028 // indirect
-	google.golang.org/appengine v1.6.8 // indirect
+	google.golang.org/api v0.149.0 // indirect
 	google.golang.org/genproto v0.0.0-20231030173426-d783a09b4405 // indirect
 	google.golang.org/genproto/googleapis/api v0.0.0-20231030173426-d783a09b4405 // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20231030173426-d783a09b4405 // indirect
 	google.golang.org/grpc v1.59.0 // indirect
-	google.golang.org/protobuf v1.31.0 // indirect
+	google.golang.org/protobuf v1.36.9 // indirect
 	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 )