From 222b4dc884892d5927dabbab2b2b6e64d3244002 Mon Sep 17 00:00:00 2001 From: Martin Fischer Date: Tue, 6 Jan 2026 20:02:15 +0100 Subject: initial commit --- .gitignore | 1 + LICENSE | 19 ++++++++ README.md | 18 ++++++++ default.nix | 20 ++++++++ go.mod | 5 ++ go.sum | 2 + hashes.nix | 3 ++ programs/open/main.go | 121 +++++++++++++++++++++++++++++++++++++++++++++++++ programs/serve/main.go | 30 ++++++++++++ scripts/reset-bg | 4 ++ scripts/set-bg | 5 ++ scripts/sreplace | 17 +++++++ 12 files changed, 245 insertions(+) create mode 100644 .gitignore create mode 100644 LICENSE create mode 100644 README.md create mode 100644 default.nix create mode 100644 go.mod create mode 100644 go.sum create mode 100644 hashes.nix create mode 100644 programs/open/main.go create mode 100644 programs/serve/main.go create mode 100755 scripts/reset-bg create mode 100755 scripts/set-bg create mode 100755 scripts/sreplace diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..c4a847d --- /dev/null +++ b/.gitignore @@ -0,0 +1 @@ +/result diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..b8b8894 --- /dev/null +++ b/LICENSE @@ -0,0 +1,19 @@ +Copyright (c) 2026 Martin Fischer + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/README.md b/README.md new file mode 100644 index 0000000..68116c6 --- /dev/null +++ b/README.md @@ -0,0 +1,18 @@ +# CMD 50 + +CMD 50 is a collection of perhaps someday 50 command-line tools. + +* open - open the given URI or file with your configured application +* reset-bg - reset background of [foot] terminal +* serve - serve the current directory over HTTP +* set-bg - set background of [foot] terminal +* sreplace - OpenSSH secure replace a directory + +TODO: write man pages + +## Other recommendations + +* wl-copy and wl-paste from [wl-clipboard] + +[foot]: https://codeberg.org/dnkl/foot +[wl-clipboard]: https://github.com/bugaevc/wl-clipboard diff --git a/default.nix b/default.nix new file mode 100644 index 0000000..407458a --- /dev/null +++ b/default.nix @@ -0,0 +1,20 @@ +{ pkgs ? import {} }: + +let + go_module = pkgs.buildGoModule { + name = "cmd50"; + src = pkgs.lib.cleanSource ./.; + vendorHash = (import ./hashes.nix).go; + }; +in +pkgs.stdenv.mkDerivation { + name = "cmd50"; + + src = ./scripts; + + installPhase = '' + mkdir -p $out/bin + cp $src/* $out/bin/ + cp ${go_module}/bin/* $out/bin/ + ''; +} diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..1bbc9da --- /dev/null +++ b/go.mod @@ -0,0 +1,5 @@ +module push-f.com/cmd50 + +go 1.25.5 + +require github.com/BurntSushi/toml v1.6.0 diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..f74b269 --- /dev/null +++ b/go.sum @@ -0,0 +1,2 @@ +github.com/BurntSushi/toml v1.6.0 h1:dRaEfpa2VI55EwlIW72hMRHdWouJeRF7TPYhI+AUQjk= +github.com/BurntSushi/toml v1.6.0/go.mod h1:ukJfTF/6rtPPRCnwkur4qwRxa8vTRFBF0uk2lLoLwho= diff --git a/hashes.nix b/hashes.nix new file mode 100644 index 0000000..3196db1 --- /dev/null +++ b/hashes.nix @@ -0,0 +1,3 @@ +{ + go = "sha256-pbA/AlBz3cQYRTMnQ/qBPcinYOKokrBLNhkbRTq54gE="; +} diff --git a/programs/open/main.go b/programs/open/main.go new file mode 100644 index 0000000..415f62a --- /dev/null +++ b/programs/open/main.go @@ -0,0 +1,121 @@ +package main + +import ( + "fmt" + "log" + "mime" + "os" + "os/exec" + "path" + "path/filepath" + "strings" + + "github.com/BurntSushi/toml" +) + +type Config struct { + MimeTypes map[string][]string `toml:"mime-types"` + UriSchemes map[string][]string `toml:"uri-schemes"` +} + +func main() { + if len(os.Args) != 2 { + fmt.Fprintf(os.Stderr, "usage: %s ", os.Args[0]) + os.Exit(1) + } + + arg := os.Args[1] + + configPath, err := xdgConfigPath("open") + if err != nil { + fatal("failed to find config path: %v", err) + } + + var cfg Config + meta, err := toml.DecodeFile(configPath, &cfg) + if err != nil { + fatal("failed to decode config: %v", err) + } + if len(meta.Undecoded()) != 0 { + fatal("unknown config keys: %v", meta.Undecoded()) + } + + for scheme, cmd := range cfg.UriSchemes { + if strings.HasPrefix(arg, scheme+":") { + cmd = append(cmd, arg) + err := run(cmd) + if err != nil { + log.Fatal(err) + } + return + } + } + + stat, err := os.Stat(arg) + if err != nil { + if os.IsNotExist(err) && strings.Contains(arg, ":") { + fatal("file not found or URI scheme not registered") + } + fatal("stat failed: %v", err) + } + + var mimeType string + + if stat.IsDir() { + mimeType = "inode/directory" + } else { + ext := path.Ext(arg) + mimeType = mime.TypeByExtension(ext) + if mimeType == "" { + fatal("no associated mime type for file extension %s", ext) + } + // strip e.g. `; charset=utf-8` + mimeType, _, _ = strings.Cut(mimeType, ";") + } + + for mimeTypePat, cmd := range cfg.MimeTypes { + matched, err := path.Match(mimeTypePat, mimeType) + if err != nil { + log.Fatal(err) + } + if matched { + cmd = append(cmd, arg) + err := run(cmd) + if err != nil { + log.Fatal(err) + } + return + } + } + + fatal("no opener configured for mime %s", mimeType) +} + +func fatal(msg string, v ...any) { + fmt.Fprintf(os.Stderr, "fatal: "+msg+"\n", v...) + os.Exit(1) +} + +func run(args []string) error { + cmd := exec.Command(args[0], args[1:]...) + + cmd.Stdin = os.Stdin + cmd.Stdout = os.Stdout + cmd.Stderr = os.Stderr + + return cmd.Run() +} + +func xdgConfigPath(appName string) (string, error) { + xdgHome := os.Getenv("XDG_CONFIG_HOME") + + if xdgHome == "" { + home, err := os.UserHomeDir() + if err != nil { + return "", err + } + xdgHome = filepath.Join(home, ".config") + } + + return filepath.Join(xdgHome, appName, "config.toml"), nil +} diff --git a/programs/serve/main.go b/programs/serve/main.go new file mode 100644 index 0000000..c0de682 --- /dev/null +++ b/programs/serve/main.go @@ -0,0 +1,30 @@ +package main + +import ( + "flag" + "fmt" + "log" + "log/slog" + "net/http" + "os" +) + +var port = flag.Int("port", 8000, "port") + +func main() { + flag.Parse() + + logger := slog.New(slog.NewTextHandler(os.Stderr, nil)) + slog.SetDefault(logger) + + slog.Info(fmt.Sprintf("listening on http://localhost:%d/", *port)) + err := http.ListenAndServe(fmt.Sprintf(":%d", *port), logRequest(http.FileServer(http.Dir(".")))) + log.Fatal(err) +} + +func logRequest(handler http.Handler) http.Handler { + return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + slog.Info("request", "addr", r.RemoteAddr, "method", r.Method, "url", r.URL) + handler.ServeHTTP(w, r) + }) +} diff --git a/scripts/reset-bg b/scripts/reset-bg new file mode 100755 index 0000000..049954d --- /dev/null +++ b/scripts/reset-bg @@ -0,0 +1,4 @@ +#!/usr/bin/env bash +# Resets the background color of the current foot terminal to the default. + +echo -en "\033]111\007" diff --git a/scripts/set-bg b/scripts/set-bg new file mode 100755 index 0000000..2ed0a78 --- /dev/null +++ b/scripts/set-bg @@ -0,0 +1,5 @@ +#!/usr/bin/env bash +# Sets the background color of the current foot terminal to the given hex color. + +rgb_with_slashes=$(echo "$1" | sed -r 's,(..)(..),\1/\2/,') +echo -en "\033]11;rgb:$rgb_with_slashes\007" diff --git a/scripts/sreplace b/scripts/sreplace new file mode 100755 index 0000000..f90a4ae --- /dev/null +++ b/scripts/sreplace @@ -0,0 +1,17 @@ +#!/usr/bin/env bash +# Replaces the contents of a remote directory with the contents of a local directory. + +if [ "$#" -ne 3 ]; then + echo "usage: $0 " + exit 1 +fi +printf -v remote_dir %q $3 + +cd $1 +tar cf - . | ssh $2 "set -xe +TEMP_DIR=\$(mktemp -d) +cd \$TEMP_DIR +tar xvf - +rm -rf $remote_dir +mv \$TEMP_DIR $remote_dir +" -- cgit v1.3.1