Do not warn before multiline paste when not at shell prompt.

sources/iTermAdvancedSettingsModel.h

@@ -154,5 +154,6 @@
 + (BOOL)showYellowMarkForJobStoppedBySignal;
 + (double)slowFrameRate;
 + (BOOL)useColorfgbgFallback;
++ (BOOL)promptForPasteWhenNotAtPrompt;
 @end

sources/iTermAdvancedSettingsModel.m

@@ -188,6 +188,7 @@ DEFINE_BOOL(copyWithStylesByDefault, NO, @"Pasteboard: Copy to pasteboard on sel
 DEFINE_INT(pasteHistoryMaxOptions, 20, @"Pasteboard: Number of entires to save in Paste History.\n.");
 DEFINE_BOOL(disallowCopyEmptyString, NO, @"Pasteboard: Disallow copying empty string to pasteboard.\nIf enabled, selecting an empty string (or all whitespace if trimming is enabled) will not erase the contents of the pasteboard.");
 DEFINE_BOOL(typingClearsSelection, YES, @"Pasteboard: Pressing a key will remove the selection.");
+DEFINE_BOOL(promptForPasteWhenNotAtPrompt, NO, @"Pasteboard: Warn before pasting when not at shell prompt?");
 #pragma mark - Tip of the day

sources/iTermApplicationDelegate.m

@@ -443,7 +443,34 @@ static BOOL hasBecomeActive = NO;
         [alert runModal];
     }
 }
+
+- (void)warnAboutChangeToDefaultPasteBehavior {
+    static NSString *const kHaveWarnedAboutPasteConfirmationChange = @"NoSyncHaveWarnedAboutPasteConfirmationChange";
+    if ([[NSUserDefaults standardUserDefaults] boolForKey:kHaveWarnedAboutPasteConfirmationChange]) {
+        // Safety check that we definitely don't show this twice.
+        return;
+    }
+    NSString *identifier = [iTermAdvancedSettingsModel noSyncDoNotWarnBeforeMultilinePasteUserDefaultsKey];
+    if ([iTermWarning identifierIsSilenced:identifier]) {
+        return;
+    }
+
+    NSArray *warningList = @[ @"3.0.0", @"3.0.1", @"3.0.2", @"3.0.3", @"3.0.4", @"3.0.5", @"3.0.6", @"3.0.7", @"3.0.8", @"3.0.9", @"3.0.10" ];
+    if ([warningList containsObject:[iTermPreferences appVersionBeforeThisLaunch]]) {
+        [iTermWarning showWarningWithTitle:@"iTerm2 no longer warns before a multi-line paste, unless you are at the shell prompt."
+                                   actions:@[ @"OK" ]
+                                 accessory:nil
+                                identifier:nil
+                               silenceable:kiTermWarningTypePersistent
+                                   heading:@"Important Change"];
+    }
+
+    [[NSUserDefaults standardUserDefaults] setBool:YES forKey:kHaveWarnedAboutPasteConfirmationChange];
+}
+
 - (void)applicationDidFinishLaunching:(NSNotification *)aNotification {
+    [self warnAboutChangeToDefaultPasteBehavior];
+
     if ([self shouldNotifyAboutIncompatibleSoftware]) {
         [self notifyAboutIncompatibleSoftware];
     }

sources/iTermPasteHelper.m

@@ -504,11 +504,13 @@ const int kNumberOfSpacesPerTabNoConversion = -1;
     [actions addObject:paste];
     [actions addObject:cancel];
     NSString *identifier = [iTermAdvancedSettingsModel noSyncDoNotWarnBeforeMultilinePasteUserDefaultsKey];
+    BOOL prompt = YES;
     if (lines.count > 1) {
         if (atShellPrompt) {
             theTitle = [NSString stringWithFormat:@"OK to paste %d lines at shell prompt?",
                         (int)[lines count]];
         } else {
+            prompt = [iTermAdvancedSettingsModel promptForPasteWhenNotAtPrompt];
             theTitle = [NSString stringWithFormat:@"OK to paste %d lines?",
                         (int)[lines count]];
         }
@@ -518,10 +520,14 @@ const int kNumberOfSpacesPerTabNoConversion = -1;
             identifier = [iTermAdvancedSettingsModel noSyncDoNotWarnBeforePastingOneLineEndingInNewlineAtShellPromptUserDefaultsKey];
             theTitle = @"OK to paste one line ending in a newline at shell prompt?";
         } else {
+            prompt = [iTermAdvancedSettingsModel promptForPasteWhenNotAtPrompt];
             theTitle = @"OK to paste one line ending in a newline?";
         }
     }
-    
+
+    if (!prompt) {
+        return YES;
+    }
     // Issue 5115
     [iTermWarning unsilenceIdentifier:identifier ifSelectionEquals:[actions indexOfObjectIdenticalTo:cancel]];
     

sources/iTermPreferences.h

@@ -151,6 +151,9 @@ extern NSString *const kPreferenceKeyShowFullscreenTabBar;
 // settings and update the last-used version number.
 + (void)initializeUserDefaults;
+// Last app version launched, if any.
++ (NSString *)appVersionBeforeThisLaunch;
+
 + (void)setObject:(id)object forKey:(NSString *)key;
 + (NSObject *)objectForKey:(NSString *)key;

sources/iTermPreferences.m

@@ -98,7 +98,7 @@ NSString *const kPreferenceKeyFocusFollowsMouse = @"FocusFollowsMouse";
 NSString *const kPreferenceKeyTripleClickSelectsFullWrappedLines = @"TripleClickSelectsFullWrappedLines";
 NSString *const kPreferenceKeyDoubleClickPerformsSmartSelection = @"DoubleClickPerformsSmartSelection";
-NSString *const kPreferenceKeyAppVersion = @"iTerm Version";
+NSString *const kPreferenceKeyAppVersion = @"iTerm Version";  // Excluded from syncing
 NSString *const kPreferenceAutoCommandHistory = @"AutoCommandHistory";
 NSString *const kPreferenceKeyPasteSpecialChunkSize = @"PasteSpecialChunkSize";
@@ -120,9 +120,14 @@ NSString *const kPreferenceKeyPasteWarningNumberOfSpacesPerTab = @"PasteTabToStr
 NSString *const kPreferenceKeyShowFullscreenTabBar = @"ShowFullScreenTabBar";
 static NSMutableDictionary *gObservers;
+static NSString *sPreviousVersion;
 @implementation iTermPreferences
++ (NSString *)appVersionBeforeThisLaunch {
+    return sPreviousVersion;
+}
+
 + (void)initializeUserDefaults {
     NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
@@ -140,6 +145,7 @@ static NSMutableDictionary *gObservers;
     // Store the current app version in prefs
     NSDictionary *infoDictionary = [[NSBundle bundleForClass:[self class]] infoDictionary];
+    sPreviousVersion = [[userDefaults objectForKey:kPreferenceKeyAppVersion] copy];
     [userDefaults setObject:infoDictionary[@"CFBundleVersion"] forKey:kPreferenceKeyAppVersion];
     // Disable under-titlebar mirror view.

sources/iTermWarning.h

@@ -53,6 +53,7 @@ typedef void(^iTermWarningActionBlock)(iTermWarningSelection);
 // Used to unsilence a particular selection (e.g., when you have a bug and silence the Cancel selection).
 + (void)unsilenceIdentifier:(NSString *)identifier ifSelectionEquals:(iTermWarningSelection)problemSelection;
++ (BOOL)identifierIsSilenced:(NSString *)identifier;
 // Tests can use this to prevent warning popups.
 + (void)setWarningHandler:(id<iTermWarningHandler>)handler;