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62 lines
2.1 KiB
62 lines
2.1 KiB
# This scripts counts the lines of code and comments in all JavaScript files.
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# The copyright-headers are substracted. It uses the command line tool "cloc".
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# You can either pass --loc, --comments or --percentage to show the respective values only.
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# Exit the script when one command fails.
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set -e
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# Go to the repo root.
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cd "$( cd "$( dirname "$0" )" && pwd )/.." || \
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{ echo "ERROR: Could not find the repo root."; exit 1; }
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# Run cloc - this counts code lines, blank lines and comment lines for the specified extensions.
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# We are only interested in the summary, therefore the tail -1
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# https://github.com/AlDanial/cloc#options-
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SUMMARY="$(cloc --include-ext="psd1" --exclude-list-file=.clocignore . --md | tail -1)"
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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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# 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=${TOKENS[4]}
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# To make the estimate of commented lines more accurate, we have to substract the
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# copyright header which is included in each file. This header has the length of five lines.
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# As cloc does not count inline comments, the overall estimate should be rather conservative.
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COMMENT_LINES=$((COMMENT_LINES - 5 * NUMBER_OF_FILES))
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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="$LINES_OF_CODE" \
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'BEGIN {printf "Comment Percentage: %6.1f%\n", 100*a/(a+b)}'
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exit 0
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fi
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# Show lines of code.
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if [[ "$*" == *--loc* ]]
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then
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awk -v a="$LINES_OF_CODE" \
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'BEGIN {printf "%.1fk\n", a/1000}'
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fi
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# Show lines of comments.
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if [[ "$*" == *--comments* ]]
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then
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awk -v a=$COMMENT_LINES \
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'BEGIN {printf "%.1fk\n", a/1000}'
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fi
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# Show precentage of comments.
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if [[ "$*" == *--percentage* ]]
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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/(a+b)}'
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fi
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