I refactored the code into AudacityApp with a new timer. This is provisional pending discussion - if it is decided that it should go somewhere else I will move it.
Fix auto-recovery failures that Gale reported, when auto-recovered projects had been saved to top-level directories, e.g., "E:\dtmf.aup" on Windows. Problem was with file separators. This DirManager code is quite convoluted, touched by multiple chefs, and called from many places, so this fix does not correct the origination(s) of the problem, but doesn't break anything higher up, and is a failsafe against probably multiple errors at higher levels.
Make some parameter names clearer vs class vars. Readability is better if the names are not lexicographically exactly the same.
Changed the bSilentlyCorrect parameter to DirManager::ProjectFSCK() to be bAutoRecoverMode. If project check errors are found during auto-recovery, it's hazardous to allow the user the various options available during normal project open. But rather than squelching the messages as well as option dialogs during auto-recover, show the messages in the log and bring up an alert.
This means the helper methods Find*() no longer need bSilentlyCorrect -- they always report to the log.
In light of discussion about crazy things users do, decided to leave in the former "Temporarily replace..." options, but changed the wording to "Treat missing audio as silence" and warn that the waveform may not show silence.
Added FSCKstatus_SAVE_AUP flag (and returned FSCKstatus_* to being flags). FSCKstatus_SAVE_AUP is set for missing aliased files, so that AudacityProject does a save, fixing a bug where after "Close project immediately...", opening other projects failed in a way that made them incorrectly report missing _data folders, rather than go through Project Check (DirManager::ProjectFSCK).
Decided to continue with the fake-out fixes for missing aliased files and missing SimpleBlockFiles, i.e., writing zeroes instead of replacing with SilentBlockFiles. Replacing is difficult, and there are other places where the zeroes trick is used, e.g., after project check, if there's a disk error, such as a .au being inaccessible in the middle of edits.
Made the "permanent immediately" and "regenerate" options not do a PushState, because they were not possible to Undo.
DirManager::ProjectFSCK (project check):
Made the enumerations interleaved with handling, because,
for example, user choosing to replace missing aliased block files with silence
needs to put in SilentBlockFiles and delete the corresponding auf files,
so those would then not be cumulated in missingAliasBlockFileHash.
We still do the FindX methods outside the conditionals,
so the log always shows all found errors.
Moved check for orphan files to last, so user first has a chance to get
messages about missing files that user may have mistakenly renamed
(and the renamed ones would appear to be orphans).
Re-ordered user choices for orphan files dialog to safest-to-boldest.
Changed FSCKstatus_CLOSEREQ and FSCKstatus_CHANGED to be integers rather
than binary flags. They were never returned with both in the result, nor used that way.
Made the project check log warnings use full paths instead of just file names.
Removed close box and system menu from MultiDialog, so that project check dialogs cannot just be closed. User has to decide on one of the choices.
Fixed some handling in AudacityProject::OnShowLog(). If the log was already showing before MultiDialog came up, it froze because it was not re-enabled.
More comments about things to fix (FIX-ME items this time).
Made AudacityProject::OnShowLog make the log window taller so more likely to show the bottom. The implementation of wxLogWindow makes it hard/impossible to scroll to the bottom.
Fix error of duplicate reports of missing aliased files.
restructuring and renaming for clarity, granularity, and reduction of code duplication
Found and commented on more errors in this code. In the "Close immediately" cases, it doesn't do a real close and that can break subsequent opening of other or the same problematic projects.
Changed several cases where GetDirManager()->ProjectFSCK returned FSCKstatus_CHANGED. These caused a PushState, but Undo could not do anything. Changed corresponding wordings for "Replace missing audio with silence" to say "permanent immediately" instead of "permanent on save", which was incorrect.
code cleanup
naming improvements for clarity (e.g., aliasedFileName instead of aliasedFile for an instance of wxFileName -- it's not an instance of AliasedFile)
parens, not square brackets, for parenthetic phrases
