FindAVariation

##Motivation

Find a specific mutation in a list of VCF files

##Compilation

Requirements / Dependencies

java compiler SDK 1.8 http://www.oracle.com/technetwork/java/index.html (NOT the old java 1.7 or 1.6) . Please check that this java is in the ${PATH}. Setting JAVA_HOME is not enough : (e.g: https://github.com/lindenb/jvarkit/issues/23 )
GNU Make >= 3.81
curl/wget
git
xsltproc http://xmlsoft.org/XSLT/xsltproc2.html (tested with "libxml 20706, libxslt 10126 and libexslt 815")

Download and Compile

$ git clone "https://github.com/lindenb/jvarkit.git"
$ cd jvarkit
$ make findavariation

by default, the libraries are not included in the jar file, so you shouldn't move them (https://github.com/lindenb/jvarkit/issues/15#issuecomment-140099011 ). You can create a bigger but standalone executable jar by adding standalone=yes on the command line:

$ git clone "https://github.com/lindenb/jvarkit.git"
$ cd jvarkit
$ make findavariation standalone=yes

The required libraries will be downloaded and installed in the dist directory.

edit 'local.mk' (optional)

The a file local.mk can be created edited to override/add some definitions.

For example it can be used to set the HTTP proxy:

http.proxy.host=your.host.com
http.proxy.port=124567

##Synopsis

$ java -jar dist/findavariation.jar  [options] (stdin|file)

Options

-o|--output (OUTPUT-FILE) Output file. Default:stdout.
-p|--position (CHROM:POS) A list of 'chrom/position'Multiple calls to this option should end with double hyphen : --
-f|--posfile (VALUE) Add this file containing chrom:positionMultiple calls to this option should end with double hyphen : --
-h|--help print help
-version|--version show version and exit

##Source Code

Main code is: https://github.com/lindenb/jvarkit/blob/master/src/main/java/com/github/lindenb/jvarkit/tools/misc/FindAVariation.java

The program will try to fix the chromosome names according to the dictionary in the VCF headers.

Example

$ find ./ -name "*.vcf" -o -name "*.vcf.gz" |\
   java -jar dist/findamutation.jar -p "chr1:1234" 

htsjdk/testdata/htsjdk/samtools/intervallist/IntervalListFromVCFTestManual.vcf	1	8216713	8216713	yossi-1		NA12878	HET	A G
htsjdk/testdata/htsjdk/samtools/intervallist/IntervalListFromVCFTestManual.vcf	1	8216713	8216713	yossi-1		NA12891	HET	A G
htsjdk/testdata/htsjdk/samtools/intervallist/IntervalListFromVCFTestManual.vcf	1	8216713	8216713	yossi-1		NA12892	HET	A G
htsjdk/testdata/htsjdk/samtools/intervallist/IntervalListFromVCFTestManual.vcf	2	2	2	.		NA12878	HOM_REF	C C
htsjdk/testdata/htsjdk/samtools/intervallist/IntervalListFromVCFTestManual.vcf	2	2	2	.		NA12891	HET	C T
htsjdk/testdata/htsjdk/samtools/intervallist/IntervalListFromVCFTestManual.vcf	2	2	2	.		NA12892	HET	C T