doc/cp.nvim.txt

@@ -453,7 +453,6 @@ COMMANDS                                                         *cp-commands*
                                 any previously saved credentials.
                                 If [platform] is omitted, uses the active platform.
                                 Examples: >
-                                    :CP login
                                     :CP login atcoder
                                     :CP login codeforces
 <
@@ -461,7 +460,6 @@ COMMANDS                                                         *cp-commands*
                                 Remove stored credentials for a platform.
                                 If [platform] is omitted, uses the active platform.
                                 Examples: >
-                                    :CP logout
                                     :CP logout atcoder
 <
             :CP {platform} signup

lua/cp/cache.lua

@@ -57,7 +57,6 @@ function M.load()
 
   if vim.fn.filereadable(cache_file) == 0 then
     vim.fn.writefile({}, cache_file)
-    vim.fn.setfperm(cache_file, 'rw-------')
     loaded = true
     return
   end
@@ -108,7 +107,6 @@ function M.save()
     local encoded = vim.json.encode(cache_data)
     local lines = vim.split(encoded, '\n')
     vim.fn.writefile(lines, cache_file)
-    vim.fn.setfperm(cache_file, 'rw-------')
   end)
 end
 

lua/cp/commands/init.lua

@@ -326,10 +326,6 @@ local function parse_command(args)
     end
   end
 
-  if (first == 'login' or first == 'logout' or first == 'signup') and #args == 1 then
-    return { type = 'action', action = first, requires_context = true, platform = nil }
-  end
-
   if #args == 1 then
     return {
       type = 'problem_jump',
@@ -382,7 +378,6 @@ function M.handle_command(opts)
       if not restore.restore_from_current_file() then
         return
       end
-      vim.cmd.redraw()
     end
 
     local setup = require('cp.setup')
@@ -426,43 +421,22 @@ function M.handle_command(opts)
       end
       vim.ui.open(url)
     elseif cmd.action == 'login' then
-      local p = cmd.platform or state.get_platform()
-      if not p then
-        logger.log(
-          'No platform active. Usage: :CP <platform> login',
-          { level = vim.log.levels.ERROR }
-        )
+      if not check_platform_enabled(cmd.platform) then
         return
       end
-      if not check_platform_enabled(p) then
-        return
-      end
-      require('cp.credentials').login(p)
+      require('cp.credentials').login(cmd.platform)
     elseif cmd.action == 'logout' then
-      local p = cmd.platform or state.get_platform()
-      if not p then
-        logger.log(
-          'No platform active. Usage: :CP <platform> logout',
-          { level = vim.log.levels.ERROR }
-        )
+      if not check_platform_enabled(cmd.platform) then
         return
       end
-      if not check_platform_enabled(p) then
-        return
-      end
-      require('cp.credentials').logout(p)
+      require('cp.credentials').logout(cmd.platform)
     elseif cmd.action == 'signup' then
-      local p = cmd.platform or state.get_platform()
-      if not p then
-        logger.log(
-          'No platform active. Usage: :CP <platform> signup',
-          { level = vim.log.levels.ERROR }
-        )
-        return
-      end
-      local url = constants.SIGNUP_URLS[p]
+      local url = constants.SIGNUP_URLS[cmd.platform]
       if not url then
-        logger.log(("No signup URL available for '%s'"):format(p), { level = vim.log.levels.WARN })
+        logger.log(
+          ("No signup URL available for '%s'"):format(cmd.platform),
+          { level = vim.log.levels.WARN }
+        )
         return
       end
       vim.ui.open(url)

lua/cp/credentials.lua

@@ -14,50 +14,46 @@ local STATUS_MESSAGES = {
 ---@param platform string
 ---@param display string
 local function prompt_and_login(platform, display)
-  vim.ui.input(
-    { prompt = '[cp.nvim]: ' .. display .. ' username (<Esc> to cancel): ' },
-    function(username)
-      if not username or username == '' then
-        logger.log(display .. ' login cancelled', { level = vim.log.levels.WARN })
-        return
-      end
-      vim.fn.inputsave()
-      local password = vim.fn.inputsecret('[cp.nvim]: ' .. display .. ' password: ')
-      vim.fn.inputrestore()
-      if not password or password == '' then
-        logger.log(display .. ' login cancelled', { level = vim.log.levels.WARN })
-        return
-      end
-
-      local credentials = { username = username, password = password }
-
-      local scraper = require('cp.scraper')
-      scraper.login(platform, credentials, function(ev)
-        vim.schedule(function()
-          local msg = STATUS_MESSAGES[ev.status] or ev.status
-          logger.log(display .. ': ' .. msg, { level = vim.log.levels.INFO, override = true })
-        end)
-      end, function(result)
-        vim.schedule(function()
-          if result.success then
-            cache.set_credentials(platform, credentials)
-            logger.log(
-              display .. ' login successful',
-              { level = vim.log.levels.INFO, override = true }
-            )
-          else
-            local err = result.error or 'unknown error'
-            cache.clear_credentials(platform)
-            logger.log(
-              display .. ' login failed: ' .. (constants.LOGIN_ERRORS[err] or err),
-              { level = vim.log.levels.ERROR }
-            )
-            prompt_and_login(platform, display)
-          end
-        end)
-      end)
+  vim.ui.input({ prompt = '[cp.nvim]: ' .. display .. ' username: ' }, function(username)
+    if not username or username == '' then
+      logger.log('Cancelled', { level = vim.log.levels.WARN })
+      return
     end
-  )
+    vim.fn.inputsave()
+    local password = vim.fn.inputsecret('[cp.nvim]: ' .. display .. ' password: ')
+    vim.fn.inputrestore()
+    if not password or password == '' then
+      logger.log('Cancelled', { level = vim.log.levels.WARN })
+      return
+    end
+
+    local credentials = { username = username, password = password }
+
+    local scraper = require('cp.scraper')
+    scraper.login(platform, credentials, function(ev)
+      vim.schedule(function()
+        local msg = STATUS_MESSAGES[ev.status] or ev.status
+        logger.log(display .. ': ' .. msg, { level = vim.log.levels.INFO, override = true })
+      end)
+    end, function(result)
+      vim.schedule(function()
+        if result.success then
+          cache.set_credentials(platform, credentials)
+          logger.log(
+            display .. ' login successful',
+            { level = vim.log.levels.INFO, override = true }
+          )
+        else
+          local err = result.error or 'unknown error'
+          cache.clear_credentials(platform)
+          logger.log(
+            display .. ' login failed: ' .. (constants.LOGIN_ERRORS[err] or err),
+            { level = vim.log.levels.ERROR }
+          )
+        end
+      end)
+    end)
+  end)
 end
 
 ---@param platform string?
@@ -121,7 +117,6 @@ function M.logout(platform)
     if ok and type(data) == 'table' then
       data[platform] = nil
       vim.fn.writefile({ vim.fn.json_encode(data) }, cookie_file)
-      vim.fn.setfperm(cookie_file, 'rw-------')
     end
   end
   logger.log(display .. ' credentials cleared', { level = vim.log.levels.INFO, override = true })

lua/cp/scraper.lua

@@ -344,7 +344,7 @@ function M.login(platform, credentials, on_status, callback)
   local done = false
   run_scraper(platform, 'login', {}, {
     ndjson = true,
-    stdin = vim.json.encode(credentials),
+    env_extra = { CP_CREDENTIALS = vim.json.encode(credentials) },
     on_event = function(ev)
       if ev.credentials ~= nil and next(ev.credentials) ~= nil then
         require('cp.cache').set_credentials(platform, ev.credentials)
@@ -392,9 +392,9 @@ function M.submit(
   local done = false
   run_scraper(platform, 'submit', { contest_id, problem_id, language, source_file }, {
     ndjson = true,
-    stdin = vim.json.encode(credentials),
+    env_extra = { CP_CREDENTIALS = vim.json.encode(credentials) },
     on_event = function(ev)
-      if ev.credentials ~= nil and next(ev.credentials) ~= nil then
+      if ev.credentials ~= nil then
         require('cp.cache').set_credentials(platform, ev.credentials)
       end
       if ev.status ~= nil then

lua/cp/submit.lua

@@ -19,27 +19,23 @@ local function prompt_credentials(platform, callback)
     callback(saved)
     return
   end
-  local display = constants.PLATFORM_DISPLAY_NAMES[platform] or platform
-  vim.ui.input(
-    { prompt = '[cp.nvim]: ' .. display .. ' username (<Esc> to cancel): ' },
-    function(username)
-      if not username or username == '' then
-        logger.log('Submit cancelled', { level = vim.log.levels.WARN })
-        return
-      end
-      vim.fn.inputsave()
-      local password = vim.fn.inputsecret('[cp.nvim]: ' .. display .. ' password: ')
-      vim.fn.inputrestore()
-      vim.cmd.redraw()
-      if not password or password == '' then
-        logger.log('Submit cancelled', { level = vim.log.levels.WARN })
-        return
-      end
-      local creds = { username = username, password = password }
-      cache.set_credentials(platform, creds)
-      callback(creds)
+  vim.ui.input({ prompt = platform .. ' username: ' }, function(username)
+    if not username or username == '' then
+      logger.log('Submit cancelled', { level = vim.log.levels.WARN })
+      return
     end
-  )
+    vim.fn.inputsave()
+    local password = vim.fn.inputsecret(platform .. ' password: ')
+    vim.fn.inputrestore()
+    vim.cmd.redraw()
+    if not password or password == '' then
+      logger.log('Submit cancelled', { level = vim.log.levels.WARN })
+      return
+    end
+    local creds = { username = username, password = password }
+    cache.set_credentials(platform, creds)
+    callback(creds)
+  end)
 end
 
 ---@param opts { language?: string }?
@@ -90,7 +86,7 @@ function M.submit(opts)
     end
   end
 
-  local function do_submit(creds)
+  prompt_credentials(platform, function(creds)
     vim.cmd.update()
 
     require('cp.scraper').submit(
@@ -116,24 +112,16 @@ function M.submit(opts)
             local err = result and result.error or 'unknown error'
             if err == 'bad_credentials' or err:match('^Login failed') then
               cache.clear_credentials(platform)
-              logger.log(
-                'Submit failed: ' .. (constants.LOGIN_ERRORS[err] or err),
-                { level = vim.log.levels.ERROR }
-              )
-              prompt_credentials(platform, do_submit)
-            else
-              logger.log(
-                'Submit failed: ' .. (constants.LOGIN_ERRORS[err] or err),
-                { level = vim.log.levels.ERROR }
-              )
             end
+            logger.log(
+              'Submit failed: ' .. (constants.LOGIN_ERRORS[err] or err),
+              { level = vim.log.levels.ERROR }
+            )
           end
         end)
       end
     )
-  end
-
-  prompt_credentials(platform, do_submit)
+  end)
 end
 
 return M

plugin/cp.lua

@@ -43,10 +43,6 @@ end, {
       vim.list_extend(candidates, platforms)
       table.insert(candidates, 'cache')
       table.insert(candidates, 'pick')
-      if platform then
-        table.insert(candidates, 'login')
-        table.insert(candidates, 'logout')
-      end
       if platform and contest_id then
         vim.list_extend(
           candidates,

scrapers/base.py

@@ -36,7 +36,6 @@ def save_platform_cookies(platform: str, data: Any) -> None:
         existing = {}
     existing[platform] = data
     _COOKIE_FILE.write_text(json.dumps(existing))
-    _COOKIE_FILE.chmod(0o600)
 
 
 def clear_platform_cookies(platform: str) -> None:
@@ -44,7 +43,6 @@ def clear_platform_cookies(platform: str) -> None:
         existing = json.loads(_COOKIE_FILE.read_text())
         existing.pop(platform, None)
         _COOKIE_FILE.write_text(json.dumps(existing))
-        _COOKIE_FILE.chmod(0o600)
     except Exception:
         pass
 
@@ -162,7 +160,7 @@ class BaseScraper(ABC):
                         ).model_dump_json()
                     )
                     return 1
-                creds_raw = sys.stdin.read()
+                creds_raw = os.environ.get("CP_CREDENTIALS", "{}")
                 try:
                     credentials = json.loads(creds_raw)
                 except json.JSONDecodeError:
@@ -175,7 +173,7 @@ class BaseScraper(ABC):
                 return 0 if result.success else 1
 
             case "login":
-                creds_raw = sys.stdin.read()
+                creds_raw = os.environ.get("CP_CREDENTIALS", "{}")
                 try:
                     credentials = json.loads(creds_raw)
                 except json.JSONDecodeError:

scrapers/kattis.py

@@ -415,6 +415,7 @@ class KattisScraper(BaseScraper):
                     return LoginResult(
                         success=True,
                         error="",
+                        credentials={"username": username, "password": password},
                     )
 
             print(json.dumps({"status": "logging_in"}), flush=True)
@@ -425,6 +426,7 @@ class KattisScraper(BaseScraper):
         return LoginResult(
             success=True,
             error="",
+            credentials={"username": username, "password": password},
         )
 
 

scrapers/usaco.py

@@ -533,6 +533,7 @@ class USACOScraper(BaseScraper):
                     return LoginResult(
                         success=True,
                         error="",
+                        credentials={"username": username, "password": password},
                     )
 
             print(json.dumps({"status": "logging_in"}), flush=True)
@@ -548,6 +549,7 @@ class USACOScraper(BaseScraper):
         return LoginResult(
             success=True,
             error="",
+            credentials={"username": username, "password": password},
         )