moss

commit bd23de7b9f560da8c989b179954e9edf53a3452b
parent 8f1b0f7f01b23261d36c757c3c8cb6b306d8356f
Author: Daniel Barlow <dan@telent.net>
Date:   Mon,  9 Feb 2026 13:51:42 +0000

add "moss qr" command

Diffstat:
M
Makefile
 | 
2
++
M
default.nix
 | 
3
++-
A
features/fixtures/horsebattery.qransi
 | 
15
+++++++++++++++
M
features/moss.feature
 | 
5
+++++
M
features/step_definitions/steps.rb
 | 
8
++++++++
M
moss.rb
 | 
8
++++++++
M
shell.nix
 | 
7
++++---

7 files changed, 44 insertions(+), 4 deletions(-)
diff --git a/Makefile b/Makefile
@@ -3,12 +3,14 @@ default: moss.rb
 AGE?=$(shell command -v age)
 AGE_KEYGEN?=$(shell command -v age-keygen)
 GIT?=$(shell command -v git)
+QRENCODE?=$(shell command -v qrencode)
 
 install: default
 	mkdir -p $(prefix)/bin
 	sed < moss.rb > $(prefix)/bin/moss \
 	 -e 's@^AGE=.*$$@AGE="$(AGE)"@' \
 	 -e 's@^AGE_KEYGEN=.*$$@AGE_KEYGEN="$(AGE_KEYGEN)"@' \
+	 -e 's@^QRENCODE=.*$$@QRENCODE="$(QRENCODE)"@' \
 	 -e 's@^GIT=.*$$@GIT="$(GIT)"@'
 	chmod a+rx $(prefix)/bin/moss
 
diff --git a/default.nix b/default.nix
@@ -2,11 +2,12 @@
 , git
 , ruby
 , age ? (callPackage ./age.nix {})
+, qrencode
 , callPackage}:
 stdenv.mkDerivation {
   name = "moss";
   src = ./.;
-  buildInputs = [ age git ruby ];
+  buildInputs = [ age git ruby qrencode ];
   installPhase = ''
     make install prefix=$out
   '';
diff --git a/features/fixtures/horsebattery.qransi b/features/fixtures/horsebattery.qransi
@@ -0,0 +1,15 @@
+█████████████████████████████
+█████████████████████████████
+████ ▄▄▄▄▄ ██ ▄ ▄█ ▄▄▄▄▄ ████
+████ █   █ █▀ ▀▀██ █   █ ████
+████ █▄▄▄█ █▄█ ▄ █ █▄▄▄█ ████
+████▄▄▄▄▄▄▄█▄▀ ▀ █▄▄▄▄▄▄▄████
+████  ▀▀▀ ▄ █ ▀█ ▀▀▀▄ ███████
+████▄█▀▄  ▄▀ ▄█▄█▀█▀█ ▀▄█████
+█████▄▄▄▄█▄█ ▀██▀▀█▄ █▀▄▀████
+████ ▄▄▄▄▄ █  ▀▀ ▀▀██▀▀▄▀████
+████ █   █ ██▀ ▀█▀▄▄▀▄▀▄▄████
+████ █▄▄▄█ █▀█ █▄▀▄▀▄▀▀▄▄████
+████▄▄▄▄▄▄▄█▄▄▄█▄▄▄████▄█████
+█████████████████████████████
+█████████████████████████████
diff --git a/features/moss.feature b/features/moss.feature
@@ -34,6 +34,11 @@ Feature: command-line password management
     When I view the secret "home/ebay"
     Then I see the string "horsebattery"
 
+  Scenario: I can view a secret as a QR code
+    Given I am using the example password store
+    When I view the secret "home/ebay" as QR code
+    Then I see a QR code for "horsebattery"
+
   Scenario: I can list secrets
     Given I am using the example password store
     When I list the secrets
diff --git a/features/step_definitions/steps.rb b/features/step_definitions/steps.rb
@@ -91,6 +91,10 @@ Then("I see the string {string}") do |s|
   expect(@i_see).to match(s)
 end
 
+Then("I see a QR code for {string}") do |s|
+  expect(@i_see).to eq(File.read("#{__dir__}/../fixtures/#{s}.qransi"))
+end
+
 Then("{string} plaintext is {string}") do |name, expected|
   path_name = store_path(name)
   contents = File.read(path_name)
@@ -134,6 +138,10 @@ When("I view the secret {string}") do |name|
   @i_see = shell "#{MOSS} cat #{name}"
 end
 
+When("I view the secret {string} as QR code") do |name|
+  @i_see = shell "#{MOSS} qr #{name}"
+end
+
 When("I search for {string}") do |term|
   @i_see = shell "#{MOSS} search #{term}"
 end
diff --git a/moss.rb b/moss.rb
@@ -8,6 +8,7 @@ require "json"
 AGE='age'
 AGE_KEYGEN='age-keygen'
 GIT='git'
+QRENCODE='qrencode'
 
 def xdg_data_home
   ENV.fetch("XDG_DATA_HOME", "#{ENV['HOME']}/.local/share")
@@ -338,6 +339,13 @@ def cli
     end
     link :cat => :show
 
+    command :qr, "display QR code for a secret" do |file:|
+      secret = MOSS.read_secret(file)
+      IO.popen([QRENCODE,"-t", "ansiutf8"], "w") do |f|
+        f.write(secret)
+      end
+    end
+
     command :search, "search secrets with names matching term" do |*term|
       files = MOSS.secrets.filter { |f|
         f.match(Regexp.new(term.join(" ")))
diff --git a/shell.nix b/shell.nix
@@ -4,13 +4,14 @@ let gems = bundlerEnv {
       groups = [ "default" "production" "development" "test" ];
       gemdir = ./.;
     };
-    age = pkgs.callPackage ./age.nix {};
+    package = callPackage ./. { } ;
 in mkShell {
   MOSS_HOME = "/tmp/${builtins.getEnv "USER"}/moss_home";
   CUCUMBER_PUBLISH_QUIET = "true";
-  packages = [
+  packages = package.buildInputs ++ [
     gems gems.wrappedRuby
     pkgs.expect
-    bundix age pkgs.entr
+    bundix
+    pkgs.entr
   ];
 }