initial implementation of --explain
Currently it only displays explanations of options like --in and --copies. In the future, it should explain preferred content expression evaluation and other decisions. The explanations of a few things could be better. In particular, "standard" will just appear as-is (or as "!standard" if it doesn't match), rather than explaining why the standard preferred content expression for the group matches or not. Currently as implemented, it goes to stdout, and so commands like git-annex find that have custom output will not display --explain information. Perhaps that should change, dunno. Sponsored-by: Dartmouth College's DANDI project
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12 changed files with 122 additions and 46 deletions
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@ -125,7 +125,7 @@ commitDb' (DbHandle _ _ jobs _) a = do
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case r of
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Right (Right ()) -> debug "Database.Handle" "commitDb done"
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Right (Left e) -> debug "Database.Handle" ("commitDb failed: " ++ show e)
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Left BlockedIndefinitelyOnMVar -> debug "Database.Handle" ("commitDb BlockedIndefinitelyOnMVar")
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Left BlockedIndefinitelyOnMVar -> debug "Database.Handle" "commitDb BlockedIndefinitelyOnMVar"
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return r
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