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+ #!/bin/bash
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+
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+ # This scripts counts the lines of code and comments in all source files
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+ # and prints the results to the command line. It uses the commandline tool
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+ # "cloc". You can either pass --loc, --comments or --percentage to show the
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+ # respective values only.
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+ # Some parts below need to be adapted to your project!
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+
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+ # Get the location of this script.
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+ SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
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+
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+ # Run cloc - this counts code lines, blank lines and comment lines
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+ # for the specified languages. You will need to change this accordingly.
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+ # For C++, you could use "C++,C/C++ Header" for example.
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+ # We are only interested in the summary, therefore the tail -1
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+ SUMMARY="$(cloc "${SCRIPT_DIR}" --include-lang="Python" --md | tail -1)"
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+
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+ # The $SUMMARY is one line of a markdown table and looks like this:
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+ # SUM:|101|3123|2238|10783
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+ # We use the following command to split it into an array.
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+ IFS='|' read -r -a TOKENS <<<"$SUMMARY"
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+
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+ # Store the individual tokens for better readability.
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+ NUMBER_OF_FILES=${TOKENS[1]}
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+ COMMENT_LINES=${TOKENS[3]}
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+ LINES_OF_CODE=${TOKENS[4]}
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+
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+ # To make the estimate of commented lines more accurate, we have to
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+ # subtract any copyright header which is included in each file.
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+ # For Fly-Pie, this header has the length of five lines.
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+ # All dumb comments like those /////////// or those // ------------
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+ # are also subtracted. As cloc does not count inline comments,
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+ # the overall estimate should be rather conservative.
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+ # Change the lines below according to your project.
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+ # DUMB_COMMENTS="$(grep -r -E '//////|// -----' "${SCRIPT_DIR}" | wc -l)"
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+ # COMMENT_LINES=$(($COMMENT_LINES - 5 * $NUMBER_OF_FILES - $DUMB_COMMENTS))
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+
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+ # Print all results if no arguments are given.
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+ if [[ $# -eq 0 ]]; then
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+ awk -v a=$LINES_OF_CODE \
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+ 'BEGIN {printf "Lines of source code: %6.1fk\n", a/1000}'
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+ awk -v a=$COMMENT_LINES \
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+ 'BEGIN {printf "Lines of comments: %6.1fk\n", a/1000}'
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+ awk -v a=$COMMENT_LINES -v b=$LINES_OF_CODE \
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+ 'BEGIN {printf "Comment Percentage: %6.1f%\n", 100*a/b}'
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+ exit 0
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+ fi
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+
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+ # Show lines of code if --loc is given.
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+ if [[ $* == *--loc* ]]; then
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+ awk -v a=$LINES_OF_CODE \
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+ 'BEGIN {printf "%.1fk\n", a/1000}'
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+ fi
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+
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+ # Show lines of comments if --comments is given.
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+ if [[ $* == *--comments* ]]; then
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+ awk -v a=$COMMENT_LINES \
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+ 'BEGIN {printf "%.1fk\n", a/1000}'
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+ fi
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+
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+ # Show precentage of comments if --percentage is given.
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+ if [[ $* == *--percentage* ]]; then
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+ awk -v a=$COMMENT_LINES -v b=$LINES_OF_CODE \
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+ 'BEGIN {printf "%.1f\n", 100*a/b}'
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+ fi