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Rollback to last git commit
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For what it's worth, I had interpreted the OP's question as "how do I rollback the commit and remove the current files", but it was and remains ambiguous. I would have understood differently if the OP had simply said "how do I re...
git pull while not in a git directory
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Edit:
There's either a bug with git pull, or you can't do what you're trying to do with that command. You can however, do it with fetch and merge:
cd /X
git --git-dir=/X/Y/.git fetch
git --git-dir=/X/Y/.git --work-tree=/X/Y merge origin/master
Original answer:
Assuming you're ru...
Is there a recommended way to return an image using ASP.NET Web API
What is the best way to return an image with 2 parameters (x and y for resize).
2 Answers
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Chmod recursively
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What is the difference between '\;' and '+' that was used by the OP at the end of the command?
– kon psych
Oct 23 '14 at 0:14
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How do I use prepared statements in SQlite in Android?
...u run a query, you want to get a cursor back with lots of rows. That's not what SQLiteStatement is for, though. You don't run a query with it unless you only need a simple result, like the number of rows in the database, which you can do with simpleQueryForLong()
String sql = "SELECT COUNT(*) FROM ...
Loadbalancing web sockets
...e also. The only caveat is that you may need to tell the WebSocket servers what their public visible hostname, IP, port is, since conforming WebSocket servers will check that the URL supplied in the HTTP header of the WS handshake fits the hostname/ip/port they are listening on.
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Latex Remove Spaces Between Items in List
What is the best way to format a list as to remove the spaces between list items.
4 Answers
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The order of keys in dictionaries
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it's what he showed as a simplified example; it may or may not have any relation to how he actually plans to use it. I have previously encountered people who expected OrderedDict to return arbitrary insertions in sorted order, and...
R apply function with multiple parameters
...at you're naming the argument you pass var instead of var2. R can't divine what you mean.
– Ari B. Friedman
Jan 30 '17 at 14:32
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In Postgresql, force unique on combination of two columns
...old one, AND
be able to undo it all (i.e. write a down migration)
Here is what worked for me, utilizing one of the above answers and expanding it:
-- up
ALTER TABLE myoldtable ADD COLUMN newcolumn TEXT;
ALTER TABLE myoldtable ADD CONSTRAINT myoldtable_oldcolumn_newcolumn_key UNIQUE (oldcolumn, new...