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How to get a specific version of a file in Mercurial?
...evious known good version of your file and the old version to compare side-by-side.
The reason why Mercurial has a separate update command is that it is possible to do something in Mercurial that is impossible in Subversion. You can update to an earlier version, make changes, then commit. This wi...
Can I have H2 autocreate a schema in an in-memory database?
... Note that if you use H2 with hibernate and want to run multiple scripts by calling RUNSCRIPT, you should type triple backslash (\\\). For example, you should set up <property name="hibernate.connection.url">jdbc:h2:mem:test;INIT=RUNSCRIPT FROM 'script1.sql'\\\;RUNSCRIPT FROM script2.sql'<...
Does anyone know what the new Exit icon is used for when editing storyboards using Xcode 4.5?
...opting Storyboards in your App."
Say you have two view controllers linked by a segue. Implement the following exit action on the first view controller:
- (IBAction)done:(UIStoryboardSegue *)segue {
NSLog(@"Popping back to this view controller!");
// reset UI elements etc here
}
Then, on ...
What does the “~” (tilde/squiggle/twiddle) CSS selector mean?
...at separates two sequences of simple selectors. The
elements represented by the two sequences share the same parent in the
document tree and the element represented by the first sequence
precedes (not necessarily immediately) the element represented by the
second one.
Consider the followin...
Android onCreate or onStartCommand for starting service
...You can play ,pause,stop using action
And you do any operation in service by sending an action and receiving it on onStartCommand
onCreate work like a Constructor.
Edit in Short
onCreate() calls only for the first time you start a Service Whereas onStartCommand() calls everytime you call the st...
How do you manage your gists on GitHub? [closed]
... search your gist. I use #hashtag in description, so I
can search my gist by tags via user:myusername #tag.
For offline usage, I cloned all my gists. And use find and grep to search them. I also search them with gonzui (open source code search engine).
I've written a shell script: gister.sh. I...
HMAC-SHA1 in bash
...cho -n "$data" | openssl dgst "-$digest" -hmac "$key" "$@"
}
# hex output by default
hash_hmac "sha1" "value" "key"
# raw output by adding the "-binary" flag
hash_hmac "sha1" "value" "key" -binary | base64
# other algos also work
hash_hmac "md5" "value" "key"
...
git cherry-pick says “…38c74d is a merge but no -m option was given”
...
The way a cherry-pick works is by taking the diff a changeset represents (the difference between the working tree at that point and the working tree of its parent), and applying it to your current branch.
So, if a commit has two or more parents, it also r...
How to save a plot as image on the disk?
...f you have resized the on-screen window.
Note that if your plot is made by either lattice or ggplot2 you have to explicitly print the plot. See this answer that explains this in more detail and also links to the R FAQ: ggplot's qplot does not execute on sourcing
2. I'm currently looking at a ...
Java SimpleDateFormat(“yyyy-MM-dd'T'HH:mm:ss'Z'”) gives timezone as IST
...ine/laptop timezone, you should always set the default timezone of the JVM by setting user.timezone system property: java -Duser.timezone=GMT ...
– kisna
Mar 15 '18 at 19:35
...