Add a "do not show again" option to prerelease-warning

scripts/gui/prerelease-warning.lua

@@ -5,27 +5,81 @@ gui/prerelease-warning
 ======================
 Shows a warning on world load for pre-release builds.
 
+With no arguments passed, the warning is shown unless the "do not show again"
+option has been selected. With the ``force`` argument, the warning is always
+shown.
+
 =end]]
 
-shown = shown or false
-if shown then return end
-if not dfhack.isPrerelease() then qerror('not a prerelease build') end
+local gui = require 'gui'
+local dlg = require 'gui.dialogs'
+local json = require 'json'
+local utils = require 'utils'
+
+local force = ({...})[1] == 'force'
+local config = json.open('dfhack-config/prerelease-warning.json')
+
+if config.data.hide and not force then
+    return
+end
+if not dfhack.isPrerelease() and not force then
+    qerror('not a prerelease build')
+end
 -- Don't fire during worldgen
-if dfhack.internal.getAddress('gametype') and df.global.gametype == df.game_type.NONE then
+if dfhack.internal.getAddress('gametype') and df.global.gametype == df.game_type.NONE and not force then
     return
 end
 
-local gui = require 'gui'
-local dlg = require 'gui.dialogs'
-local utils = require 'utils'
+local state = dfhack.getDFHackRelease():lower():match('[a-z]+')
+if not utils.invert{'alpha', 'beta', 'rc', 'r'}[state] then
+    dfhack.printerr('warning: unknown release state: ' .. state)
+    state = 'unknown'
+end
+
+
+message = ({
+    alpha = {
+        'Warning',
+        COLOR_YELLOW,
+        'This is an alpha build of DFHack. Some structures are likely', NEWLINE,
+        'to be incorrect, resulting in crashes or save corruption', NEWLINE,
+        {pen=COLOR_LIGHTRED, text='Make backups of your saves often!'}
+    },
+    beta = {
+        'Warning',
+        COLOR_YELLOW,
+        'This is a beta release of DFHack. It is more stable than an', NEWLINE,
+        'alpha release, but bugs are still possible, possibly including', NEWLINE,
+        'crashes and save corruption.', NEWLINE,
+        'Make backups of your saves beforehand to be safe.'
+    },
+    rc = {
+        'Notice',
+        COLOR_YELLOW,
+        'This is a DFHack release candidate. It is fairly stable but', NEWLINE,
+        'likely contains newer features that are not fully-tested.', NEWLINE,
+        'Crashes are unlikely, but always make backups of your saves', NEWLINE,
+        'to be safe.'
+    },
+    r = {
+        'Error',
+        COLOR_LIGHTRED,
+        'This release is flagged as a prerelease but named as a', NEWLINE,
+        'stable release.', NEWLINE,
+        {pen=COLOR_LIGHTMAGENTA, text='Please report this to the DFHack team or a pack maintainer.'}
+    },
+    unknown = {
+        'Error',
+        COLOR_LIGHTMAGENTA,
+        'Unknown prerelease DFHack build. This should never happen!', NEWLINE,
+        'Please report this to the DFHack team or a pack maintainer.'
+    }
+})[state]
 
-message = {
-    'This is a prerelease build of DFHack. Some structures are likely', NEWLINE,
-    'to be incorrect, resulting in crashes or save corruption', NEWLINE,
-    {pen=COLOR_LIGHTRED, text='Make backups of your saves often!'},
-}
+title = table.remove(message, 1)
+color = table.remove(message, 1)
 
-pack_message = pack_message or [[
+pack_message = [[
 
 This should not be enabled by default in a pack.
 If you are seeing this message and did not enable/install DFHack
@@ -37,7 +91,6 @@ if #pack_message > 0 and (path:find('lnp') or path:find('starter') or path:find(
         table.insert(message, NEWLINE)
         table.insert(message, {text=v, pen=COLOR_LIGHTMAGENTA})
     end
-    pack_message = ''
 end
 
 dfhack.print('\n')
@@ -47,7 +100,7 @@ for k,v in ipairs(message) do
         dfhack.color(v.pen)
         dfhack.print(v.text)
     else
-        dfhack.color(COLOR_YELLOW)
+        dfhack.color(color)
         dfhack.print(v)
     end
 end
@@ -55,5 +108,34 @@ end
 dfhack.color(COLOR_RESET)
 dfhack.print('\n\n')
 
-dlg.showMessage('Warning', message, COLOR_YELLOW)
-shown = true
+WarningBox = defclass(nil, dlg.MessageBox)
+
+function WarningBox:getWantedFrameSize()
+    local w, h = WarningBox.super.getWantedFrameSize(self)
+    return w, h + 2
+end
+
+function WarningBox:onRenderFrame(dc,rect)
+    WarningBox.super.onRenderFrame(self,dc,rect)
+    dc:pen(COLOR_WHITE):key_pen(COLOR_LIGHTRED)
+        :seek(rect.x1 + 2, rect.y2 - 2)
+        :key('CUSTOM_D'):string(': Do not show again')
+        :advance(10)
+        :key('LEAVESCREEN'):string('/')
+        :key('SELECT'):string(': Dismiss')
+end
+
+function WarningBox:onInput(keys)
+    if keys.CUSTOM_D then
+        config.data.hide = true
+        config:write()
+        keys.LEAVESCREEN = true
+    end
+    WarningBox.super.onInput(self, keys)
+end
+
+WarningBox{
+    frame_title = title,
+    text = message,
+    text_pen = color
+}:show()