doc/todo/Make_addunlocked_configurable_like_largefiles.mdwn

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+Hi joey,
+
+How about making `annex.addunlocked` configurable similar to `annex.largefiles` so different file types can be configured to be added unlocked and others locked?
+
+The following illustrates a use case:
+
+[[!format  bash """
+#!/bin/sh -x
+# make a repo
+export LC_ALL=C.UTF-8
+chmod -R +w addunlocked;rm -rf addunlocked
+git init addunlocked
+cd addunlocked
+git annex init
+# configure *.txt files to be added unlocked so they stay editable
+echo '*.txt   annex.addunlocked=true' > .gitattributes
+git add .gitattributes
+git commit -m "Add .gitattributes"
+# make a note
+echo bla > notes.txt
+git annex add
+git annex sync -m "add notes.txt"
+# However editing doesn't work as it was added locked
+echo blubb >> notes.txt  # fails as it was not added unlocked
+"""]]
+
+Probably not all matching options (like `copies` for example) make sense or work at all in this context, but at least `include=` would be useful („all files in that dir should be added unlocked always”). For example, in a synced folder for collaboration, PDFs could stay locked to save space, but Spreadsheets and ODT documents for example make sense to be added unlocked by default to stay editable. This could be achieved with something like this:
+
+[[!format  bash """
+# repo-wide stored in git-annex branch
+git annex config --set annex.addunlocked 'include=*.odt or include=**.pdf'
+
+# folder-specific via .gitattributes
+echo '*.pdf  annex.addunlocked=true' >> .gitattributes # (or 'anything')
+echo '*.odt  annex.addunlocked=true' >> .gitattributes # (or 'anything')
+
+# repo-specific
+git config annex.addunlocked 'include=**/*.odt or include=**/*.pdf'
+"""]]
+
+What do you think?
+
+Cheers, Yann