fix: json command didnt filter

README.md

@@ -38,6 +38,18 @@ yay -S snitch-bin
 paru -S snitch-bin
 ```
 
+### shell script
+
+```bash
+curl -sSL https://raw.githubusercontent.com/karol-broda/snitch/master/install.sh | sh
+```
+
+installs to `~/.local/bin` if available, otherwise `/usr/local/bin`. override with:
+
+```bash
+curl -sSL https://raw.githubusercontent.com/karol-broda/snitch/master/install.sh | INSTALL_DIR=~/bin sh
+```
+
 ### binary
 
 download from [releases](https://github.com/karol-broda/snitch/releases):
@@ -51,6 +63,7 @@ sudo mv snitch /usr/local/bin/
 ```
 
 > **macos:** if blocked with "cannot be opened because the developer cannot be verified", run:
+>
 > ```bash
 > xattr -d com.apple.quarantine /usr/local/bin/snitch
 > ```

cmd/json.go

@@ -15,4 +15,5 @@ var jsonCmd = &cobra.Command{
 
 func init() {
 	rootCmd.AddCommand(jsonCmd)
+	addFilterFlags(jsonCmd)
 }

flake.lock

@@ -18,23 +18,7 @@
     },
     "root": {
       "inputs": {
-        "nixpkgs": "nixpkgs",
+        "nixpkgs": "nixpkgs"
-        "systems": "systems"
-      }
-    },
-    "systems": {
-      "locked": {
-        "lastModified": 1681028828,
-        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
-        "owner": "nix-systems",
-        "repo": "default",
-        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-systems",
-        "repo": "default",
-        "type": "github"
       }
     }
   },

flake.nix

@@ -1,107 +1,105 @@
 {
   description = "snitch - a friendlier ss/netstat for humans";
 
-  inputs = {
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.05";
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.05";
-    systems.url = "github:nix-systems/default";
-  };
 
-  outputs = { self, nixpkgs, systems }:
+  outputs = { self, nixpkgs }:
     let
-      supportedSystems = import systems;
+      systems = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin" ];
-      forAllSystems = f: nixpkgs.lib.genAttrs supportedSystems (system: f system);
+      eachSystem = nixpkgs.lib.genAttrs systems;
 
-      # go 1.25 overlay (required until nixpkgs has it)
+      # go 1.25 binary derivation (required until nixpkgs ships it)
-      goOverlay = final: prev:
+      mkGo125 = pkgs:
         let
           version = "1.25.0";
-          platformInfo = {
+          platform = {
-            "x86_64-linux" = { suffix = "linux-amd64"; sri = "sha256-KFKvDLIKExObNEiZLmm4aOUO0Pih5ZQO4d6eGaEjthM="; };
+            "x86_64-linux" = { suffix = "linux-amd64"; hash = "sha256-KFKvDLIKExObNEiZLmm4aOUO0Pih5ZQO4d6eGaEjthM="; GOOS = "linux"; GOARCH = "amd64"; };
-            "aarch64-linux" = { suffix = "linux-arm64"; sri = "sha256-Bd511plKJ4NpmBXuVTvVqTJ9i3mZHeNuOLZoYngvVK4="; };
+            "aarch64-linux" = { suffix = "linux-arm64"; hash = "sha256-Bd511plKJ4NpmBXuVTvVqTJ9i3mZHeNuOLZoYngvVK4="; GOOS = "linux"; GOARCH = "arm64"; };
-            "x86_64-darwin" = { suffix = "darwin-amd64"; sri = "sha256-W9YOgjA3BiwjB8cegRGAmGURZxTW9rQQWXz1B139gO8="; };
+            "x86_64-darwin" = { suffix = "darwin-amd64"; hash = "sha256-W9YOgjA3BiwjB8cegRGAmGURZxTW9rQQWXz1B139gO8="; GOOS = "darwin"; GOARCH = "amd64"; };
-            "aarch64-darwin" = { suffix = "darwin-arm64"; sri = "sha256-VEkyhEFW2Bcveij3fyrJwVojBGaYtiQ/YzsKCwDAdJw="; };
+            "aarch64-darwin" = { suffix = "darwin-arm64"; hash = "sha256-VEkyhEFW2Bcveij3fyrJwVojBGaYtiQ/YzsKCwDAdJw="; GOOS = "darwin"; GOARCH = "arm64"; };
-          };
+          }.${pkgs.stdenv.hostPlatform.system} or (throw "unsupported system: ${pkgs.stdenv.hostPlatform.system}");
-          hostSystem = prev.stdenv.hostPlatform.system;
-          chosen = platformInfo.${hostSystem} or (throw "unsupported system: ${hostSystem}");
         in
-        {
+        pkgs.stdenv.mkDerivation {
-          go_1_25 = prev.stdenvNoCC.mkDerivation {
+          pname = "go";
-            pname = "go";
+          inherit version;
-            inherit version;
+          src = pkgs.fetchurl {
-            src = prev.fetchurl {
+            url = "https://go.dev/dl/go${version}.${platform.suffix}.tar.gz";
-              url = "https://go.dev/dl/go${version}.${chosen.suffix}.tar.gz";
+            inherit (platform) hash;
-              hash = chosen.sri;
+          };
-            };
+          dontBuild = true;
-            dontBuild = true;
+          dontPatchELF = true;
-            installPhase = ''
+          dontStrip = true;
-              runHook preInstall
+          installPhase = ''
-              mkdir -p "$out"/{bin,share}
+            runHook preInstall
-              tar -C "$TMPDIR" -xzf "$src"
+            mkdir -p $out/{bin,share/go}
-              cp -a "$TMPDIR/go" "$out/share/go"
+            tar -xzf $src --strip-components=1 -C $out/share/go
-              ln -s "$out/share/go/bin/go" "$out/bin/go"
+            ln -s $out/share/go/bin/go $out/bin/go
-              ln -s "$out/share/go/bin/gofmt" "$out/bin/gofmt"
+            ln -s $out/share/go/bin/gofmt $out/bin/gofmt
-              runHook postInstall
+            runHook postInstall
-            '';
+          '';
-            dontPatchELF = true;
+          passthru = {
-            dontStrip = true;
+            inherit (platform) GOOS GOARCH;
+          };
+        };
+
+      pkgsFor = system: import nixpkgs { inherit system; };
+
+      mkSnitch = pkgs:
+        let
+          version = self.shortRev or self.dirtyShortRev or "dev";
+          go = mkGo125 pkgs;
+          buildGoModule = pkgs.buildGoModule.override { inherit go; };
+        in
+        buildGoModule {
+          pname = "snitch";
+          inherit version;
+          src = self;
+          vendorHash = "sha256-fX3wOqeOgjH7AuWGxPQxJ+wbhp240CW8tiF4rVUUDzk=";
+          env.CGO_ENABLED = "0";
+          env.GOTOOLCHAIN = "local";
+          ldflags = [
+            "-s"
+            "-w"
+            "-X snitch/cmd.Version=${version}"
+            "-X snitch/cmd.Commit=${version}"
+            "-X snitch/cmd.Date=${self.lastModifiedDate or "unknown"}"
+          ];
+          meta = {
+            description = "a friendlier ss/netstat for humans";
+            homepage = "https://github.com/karol-broda/snitch";
+            license = pkgs.lib.licenses.mit;
+            platforms = pkgs.lib.platforms.linux;
+            mainProgram = "snitch";
           };
         };
     in
     {
-      overlays.default = final: prev: {
+      packages = eachSystem (system:
-        snitch = final.callPackage ./nix/package.nix { };
+        let pkgs = pkgsFor system; in
-      };
-
-      packages = forAllSystems (system:
-        let
-          pkgs = import nixpkgs {
-            inherit system;
-            overlays = [ goOverlay ];
-          };
-        in
-        let
-          version = self.shortRev or self.dirtyShortRev or "dev";
-        in
         {
-          default = pkgs.buildGoModule {
+          default = mkSnitch pkgs;
-            pname = "snitch";
+          snitch = mkSnitch pkgs;
-            inherit version;
-            src = self;
-            vendorHash = "sha256-fX3wOqeOgjH7AuWGxPQxJ+wbhp240CW8tiF4rVUUDzk=";
-            env.CGO_ENABLED = 0;
-            ldflags = [
-              "-s" "-w"
-              "-X snitch/cmd.Version=${version}"
-              "-X snitch/cmd.Commit=${version}"
-              "-X snitch/cmd.Date=${self.lastModifiedDate or "unknown"}"
-            ];
-            meta = with pkgs.lib; {
-              description = "a friendlier ss/netstat for humans";
-              homepage = "https://github.com/karol-broda/snitch";
-              license = licenses.mit;
-              platforms = platforms.linux;
-              mainProgram = "snitch";
-            };
-          };
         }
       );
 
-      devShells = forAllSystems (system:
+      devShells = eachSystem (system:
         let
-          pkgs = import nixpkgs {
+          pkgs = pkgsFor system;
-            inherit system;
+          go = mkGo125 pkgs;
-            overlays = [ goOverlay ];
-          };
         in
         {
           default = pkgs.mkShell {
-            packages = [ pkgs.go_1_25 pkgs.git pkgs.vhs ];
+            packages = [ go pkgs.git pkgs.vhs ];
-            GOTOOLCHAIN = "local";
+            env.GOTOOLCHAIN = "local";
             shellHook = ''
               echo "go toolchain: $(go version)"
             '';
           };
         }
       );
+
+      overlays.default = final: _prev: {
+        snitch = mkSnitch final;
+      };
     };
 }

install.sh

@@ -0,0 +1,110 @@
+#!/bin/sh
+set -e
+
+REPO="karol-broda/snitch"
+BINARY_NAME="snitch"
+
+# allow override via environment
+INSTALL_DIR="${INSTALL_DIR:-}"
+
+detect_install_dir() {
+    if [ -n "$INSTALL_DIR" ]; then
+        echo "$INSTALL_DIR"
+        return
+    fi
+
+    # prefer user-local directory if it exists and is in PATH
+    if [ -d "$HOME/.local/bin" ] && echo "$PATH" | grep -q "$HOME/.local/bin"; then
+        echo "$HOME/.local/bin"
+        return
+    fi
+
+    # fallback to /usr/local/bin
+    echo "/usr/local/bin"
+}
+
+detect_os() {
+    os=$(uname -s | tr '[:upper:]' '[:lower:]')
+    case "$os" in
+        darwin) echo "darwin" ;;
+        linux) echo "linux" ;;
+        *)
+            echo "error: unsupported operating system: $os" >&2
+            exit 1
+            ;;
+    esac
+}
+
+detect_arch() {
+    arch=$(uname -m)
+    case "$arch" in
+        x86_64|amd64) echo "amd64" ;;
+        aarch64|arm64) echo "arm64" ;;
+        armv7l) echo "armv7" ;;
+        *)
+            echo "error: unsupported architecture: $arch" >&2
+            exit 1
+            ;;
+    esac
+}
+
+fetch_latest_version() {
+    version=$(curl -sL "https://api.github.com/repos/${REPO}/releases/latest" | grep '"tag_name"' | head -1 | cut -d'"' -f4)
+    if [ -z "$version" ]; then
+        echo "error: failed to fetch latest version" >&2
+        exit 1
+    fi
+    echo "$version"
+}
+
+main() {
+    os=$(detect_os)
+    arch=$(detect_arch)
+    install_dir=$(detect_install_dir)
+    version=$(fetch_latest_version)
+    version_no_v="${version#v}"
+
+    archive_name="${BINARY_NAME}_${version_no_v}_${os}_${arch}.tar.gz"
+    download_url="https://github.com/${REPO}/releases/download/${version}/${archive_name}"
+
+    echo "installing ${BINARY_NAME} ${version} for ${os}/${arch}..."
+
+    tmp_dir=$(mktemp -d)
+    trap 'rm -rf "$tmp_dir"' EXIT
+
+    echo "downloading ${download_url}..."
+    if ! curl -sL --fail "$download_url" -o "${tmp_dir}/${archive_name}"; then
+        echo "error: failed to download ${download_url}" >&2
+        exit 1
+    fi
+
+    echo "extracting..."
+    tar -xzf "${tmp_dir}/${archive_name}" -C "$tmp_dir"
+
+    if [ ! -f "${tmp_dir}/${BINARY_NAME}" ]; then
+        echo "error: binary not found in archive" >&2
+        exit 1
+    fi
+
+    # remove macos quarantine attribute
+    if [ "$os" = "darwin" ]; then
+        xattr -d com.apple.quarantine "${tmp_dir}/${BINARY_NAME}" 2>/dev/null || true
+    fi
+
+    # install binary
+    if [ -w "$install_dir" ]; then
+        mv "${tmp_dir}/${BINARY_NAME}" "${install_dir}/${BINARY_NAME}"
+    else
+        echo "elevated permissions required to install to ${install_dir}"
+        sudo mv "${tmp_dir}/${BINARY_NAME}" "${install_dir}/${BINARY_NAME}"
+    fi
+
+    chmod +x "${install_dir}/${BINARY_NAME}"
+
+    echo "installed ${BINARY_NAME} to ${install_dir}/${BINARY_NAME}"
+    echo ""
+    echo "run '${BINARY_NAME} --help' to get started"
+}
+
+main
+

internal/tui/view.go

@@ -47,37 +47,14 @@ func (m model) renderTitle() string {
 func (m model) renderFilters() string {
 	var parts []string
 
-	if m.showTCP {
+	parts = append(parts, m.renderFilterLabel("t", "cp", m.showTCP))
-		parts = append(parts, m.theme.Styles.Success.Render("tcp"))
+	parts = append(parts, m.renderFilterLabel("u", "dp", m.showUDP))
-	} else {
-		parts = append(parts, m.theme.Styles.Normal.Render("tcp"))
-	}
-
-	if m.showUDP {
-		parts = append(parts, m.theme.Styles.Success.Render("udp"))
-	} else {
-		parts = append(parts, m.theme.Styles.Normal.Render("udp"))
-	}
 
 	parts = append(parts, m.theme.Styles.Border.Render(BoxVertical))
 
-	if m.showListening {
+	parts = append(parts, m.renderFilterLabel("l", "isten", m.showListening))
-		parts = append(parts, m.theme.Styles.Success.Render("listen"))
+	parts = append(parts, m.renderFilterLabel("e", "stab", m.showEstablished))
-	} else {
+	parts = append(parts, m.renderFilterLabel("o", "ther", m.showOther))
-		parts = append(parts, m.theme.Styles.Normal.Render("listen"))
-	}
-
-	if m.showEstablished {
-		parts = append(parts, m.theme.Styles.Success.Render("estab"))
-	} else {
-		parts = append(parts, m.theme.Styles.Normal.Render("estab"))
-	}
-
-	if m.showOther {
-		parts = append(parts, m.theme.Styles.Success.Render("other"))
-	} else {
-		parts = append(parts, m.theme.Styles.Normal.Render("other"))
-	}
 
 	left := "  " + strings.Join(parts, "  ")
 
@@ -119,6 +96,18 @@ func (m model) renderTableHeader() string {
 	return m.theme.Styles.Header.Render(header) + "\n"
 }
 
+func (m model) renderFilterLabel(firstChar, rest string, active bool) string {
+	baseStyle := m.theme.Styles.Normal
+	if active {
+		baseStyle = m.theme.Styles.Success
+	}
+
+	underlinedFirst := baseStyle.Underline(true).Render(firstChar)
+	restPart := baseStyle.Render(rest)
+
+	return underlinedFirst + restPart
+}
+
 func (m model) renderSeparator() string {
 	w := m.width - 4
 	if w < 1 {
@@ -134,8 +123,11 @@ func (m model) renderConnections() string {
 	pageSize := m.pageSize()
 
 	if len(visible) == 0 {
-		empty := "\n  " + m.theme.Styles.Normal.Render("no connections match filters") + "\n"
+		b.WriteString("  " + m.theme.Styles.Normal.Render("no connections match filters") + "\n")
-		return empty
+		for i := 1; i < pageSize; i++ {
+			b.WriteString("\n")
+		}
+		return b.String()
 	}
 
 	start := m.scrollOffset(pageSize, len(visible))