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How do I programmatically determine if there are uncommitted changes?

...ing git diff once solves the issue (surprisingly enough, git diff does actually change the content of the sandbox, meaning here .git/index) These timestamp issues can also occur if git is running in docker. Original answer: "Programmatically" means never ever rely on porcelain commands. Always rel...
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How to get a variable value if variable name is stored as string?

...our script using /bin/sh? If so, try using /bin/bash instead. From Debian Squeeze onwards, /bin/sh was changed to be a symlink for dash instead of bash. dash doesn't support this particular syntax and will output a Bad substitution error. – Phil Ross Aug 8 '13 ...
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How can I preview a merge in git?

...won't have any merged code or merge conflicts in your branch. This is basically a dry-run. Strategy 2: When you definitely want to merge, but only if there aren't conflicts git checkout mybranch git merge some-other-branch If git reports conflicts (and ONLY IF THERE ARE conflicts) you can then do: ...
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HTTP error 403 in Python 3 Web Scraping

...ily detected). Try setting a known browser user agent with: from urllib.request import Request, urlopen req = Request('http://www.cmegroup.com/trading/products/#sortField=oi&sortAsc=false&venues=3&page=1&cleared=1&group=1', headers={'User-Agent': 'Mozilla/5.0'}) webpage = urlop...
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Getting root permissions on a file inside of vi? [closed]

...e command causes Vim to prompt for password but not accept input. It eventually times out on two attempts and says: sudo: 1 incorrect password attempt – cmcginty Feb 24 '09 at 3:14 ...
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Is the NOLOCK (Sql Server hint) bad practice?

... It is occassionally useful, but not normally for production. I use it frequently for pulling out a sample of data to test with or for generating reports where I mostly care about rough order of magnitude where a dirty read won't matter. ...
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How to play an android notification sound

...title controller already set. What does it mean? – Deqing May 11 '14 at 11:20 ...
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How to version REST URIs

...resource is returning some variant of application/vnd.yourcompany.user+xml all you need to do is create support for a new application/vnd.yourcompany.userV2+xml media type and through the magic of content negotiation your v1 and v2 clients can co-exist peacefully. In a RESTful interface, the closes...
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When to use a linked list over an array/array list?

...you know the number of elements in the array ahead of time so that you can allocate the correct amount of memory for the array you need speed when iterating through all the elements in sequence. You can use pointer math on the array to access each element, whereas you need to lookup the node based...
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Static Vs. Dynamic Binding in Java

... is vehicle but object will be Car vehicle.start(); //Car's start called because start() is overridden method } } class Vehicle { public void start() { System.out.println("Inside start method of Vehicle"); } } class Car extends Vehicle { @Override public void st...