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exit if bad parallel/tesseract version installed

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fritz-hh 2014-01-10 22:59:33 +01:00
parent 455303b3d4
commit 46f673a3b7
1 changed files with 13 additions and 6 deletions
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19
OCRmyPDF.sh
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@ -41,7 +41,8 @@ Usage: OCRmyPDF.sh [-h] [-v] [-g] [-k] [-d] [-c] [-i] [-o dpi] [-f] [-l languag
-f : Force to OCR the whole document, even if some page already contain font data
(which should not be the case for PDF files built from scnanned images)
-l : Set the language of the PDF file in order to improve OCR results (default "eng")
Any language supported by tesseract is supported.
Any language supported by tesseract is supported (Tesseract uses 3-character ISO 639-2 language codes)
Multiple languages may be specified, separated by plus characters.
-C : Pass an additional configuration file to the tesseract OCR engine.
(this option can be used more than once)
Note 1: The configuration file must be available in the "tessdata/configs" folder of your tesseract installation
@ -149,12 +150,18 @@ cd "`dirname $0`"
! command -v java > /dev/null && echo "Please install java. Exiting..." && exit $EXIT_MISSING_DEPENDENCY
# ensure tesseract v3.02.02 or newer is installed
# ensure the right tesseract version is installed
# older versions are known to produce malformed hocr output and should not be used
tessversion=`tesseract -v 2>&1 | grep "tesseract"`
if [ $VERBOSITY -ge $LOG_WARN -a $((`echo ${tessversion} | sed s/[^0-9]//g`-30202)) -lt 0 ]; then
echo "Warning: Please use tesseract 3.02.02 or newer. Older versions are known to produce invalid hocr output (installed version: ${tessversion})"
fi
reqtessversion="3.02.02"
tessversion=`tesseract -v 2>&1 | grep "tesseract" | sed s/[^0-9.]//g`
! [ $((`echo $tessversion | sed s/[.]//g`-`echo $reqtessversion | sed s/[.]//g`)) -ge 0 ] > /dev/null \
&& echo "Please install tesseract ${reqtessversion} or newer (currently installed version is ${tessversion})" && exit $EXIT_MISSING_DEPENDENCY
# ensure the right GNU parallel version is installed
# older version do not support -q flag (required to escape special characters)
reqparallelversion="20130222"
parallelversion=`parallel --minversion 0`
! parallel --minversion "$reqparallelversion" > /dev/null \
&& echo "Please install GNU parallel ${reqparallelversion} or newer (currently installed version is ${parallelversion})" && exit $EXIT_MISSING_DEPENDENCY
# Display the version of the tools if log level is LOG_DEBUG