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Ant task to run an Ant target only if a file exists?

...esourceexists From http://ant.apache.org/manual/Tasks/conditions.html Tests a resource for existance. since Ant 1.8.0 The actual resource to test is specified as a nested element. An example: <resourceexists> <file file="${file}"/> </resourceexists> I was a...
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What does a tilde do when it precedes an expression?

...n value. If your target platform(s) support it, you should prefer this for testing for the existence of a value in a string or array. share | improve this answer | follow ...
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Save PL/pgSQL output from PostgreSQL to a CSV file

...ostgresql's built in COPY command. e.g. Copy (Select * From foo) To '/tmp/test.csv' With CSV DELIMITER ',' HEADER; This approach runs entirely on the remote server - it can't write to your local PC. It also needs to be run as a Postgres "superuser" (normally called "root") because Postgres can't ...
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Android - Handle “Enter” in an EditText

...tors. The scrollHorizontal attribute doesn't make any difference. The null test is important because the response of phones to soft enters is left to the manufacturer and even in the emulators, the vanilla Level 16 emulators respond to long soft enters in multi-line and scrollHorizontal EditTexts wi...
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How to convert QString to std::string?

...he first is incorrect, the second is perfect. You need an utf8 terminal to test this. – Notinlist Dec 13 '11 at 22:24 3 ...
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Does Git Add have a verbose switch

... Output: 14:06:05.508517 git.c:415 trace: built-in: git add test.txt test2.txt 14:06:05.544890 git.c:415 trace: built-in: git config --get oh-my-zsh.hide-dirty share | ...
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How to format numbers as currency string?

... is followed by a sequence of three number sets (one or more) and a dot". TESTS: 1 --> "1.00" 12 --> "12.00" 123 --> "123.00" 1234 --> "1,234.00" 12345 --> "12,345.00" 123456 --> "123,456.00" 1234567 --> "1,234,567.00" 12345.67 --> "12,345.67" ...
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Running multiple AsyncTasks at the same time — not possible?

...cution already, but have not finished their doInBackground() yet. This is tested/confirmed by me on 2.2. Suppose you have a custom AsyncTask that just sleeps a second in doInBackground(). AsyncTasks use a fixed size queue internally for storing delayed tasks. Queue size is 10 by default. If you sta...
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Determine installed PowerShell version

...ailed on PowerShell.com in Which PowerShell Version Am I Running. $isV2 = test-path variable:\psversiontable The same site also gives a function to return the version: function Get-PSVersion { if (test-path variable:psversiontable) {$psversiontable.psversion} else {[version]"1.0.0.0"} } ...
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How to check edittext's text is email address or not?

...inName: checks that field contains a valid domain name ( always passes the test in API Level < 8 ) ipAddress: checks that the field contains a valid ip address webUrl: checks that the field contains a valid url ( always passes the test in API Level < 8 ) nocheck: It does not check anything. (D...