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	Strengthen static code analysis for shell scripts. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: John Kennedy <john.kennedy@delphix.com> Signed-off-by: szubersk <szuberskidamian@gmail.com> Closes #12914
		
			
				
	
	
		
			124 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			Bash
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			124 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			Bash
		
	
	
		
			Executable File
		
	
	
	
	
#!/bin/sh
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REF="HEAD"
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# test commit body for length
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# lines containing urls are exempt for the length limit.
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test_commit_bodylength()
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{
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    length="72"
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    body=$(git log --no-show-signature -n 1 --pretty=%b "$REF" | grep -Ev "http(s)*://" | grep -E -m 1 ".{$((length + 1))}")
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    if [ -n "$body" ]; then
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        echo "error: commit message body contains line over ${length} characters"
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        return 1
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    fi
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    return 0
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}
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# check for a tagged line
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check_tagged_line()
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{
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    regex='^[[:space:]]*'"$1"':[[:space:]][[:print:]]+[[:space:]]<[[:graph:]]+>$'
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    foundline=$(git log --no-show-signature -n 1 "$REF" | grep -E -m 1 "$regex")
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    if [ -z "$foundline" ]; then
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        echo "error: missing \"$1\""
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        return 1
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    fi
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    return 0
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}
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# check commit message for a normal commit
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new_change_commit()
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{
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    error=0
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    # subject is not longer than 72 characters
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    long_subject=$(git log --no-show-signature -n 1 --pretty=%s "$REF" | grep -E -m 1 '.{73}')
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    if [ -n "$long_subject" ]; then
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        echo "error: commit subject over 72 characters"
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        error=1
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    fi
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    # need a signed off by
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    if ! check_tagged_line "Signed-off-by" ; then
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        error=1
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    fi
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    # ensure that no lines in the body of the commit are over 72 characters
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    if ! test_commit_bodylength ; then
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        error=1
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    fi
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    return "$error"
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}
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is_coverity_fix()
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{
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    # subject starts with Fix coverity defects means it's a coverity fix
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    subject=$(git log --no-show-signature -n 1 --pretty=%s "$REF" | grep -E -m 1 '^Fix coverity defects')
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    if [ -n "$subject" ]; then
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        return 0
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    fi
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    return 1
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}
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coverity_fix_commit()
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{
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    error=0
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    # subject starts with Fix coverity defects: CID dddd, dddd...
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    subject=$(git log --no-show-signature -n 1 --pretty=%s "$REF" |
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        grep -E -m 1 'Fix coverity defects: CID [[:digit:]]+(, [[:digit:]]+)*')
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    if [ -z "$subject" ]; then
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        echo "error: Coverity defect fixes must have a subject line that starts with \"Fix coverity defects: CID dddd\""
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        error=1
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    fi
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    # need a signed off by
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    if ! check_tagged_line "Signed-off-by" ; then
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        error=1
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    fi
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    # test each summary line for the proper format
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    OLDIFS=$IFS
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    IFS='
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'
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    for line in $(git log --no-show-signature -n 1 --pretty=%b "$REF" | grep -E '^CID'); do
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        if ! echo "$line" | grep -qE '^CID [[:digit:]]+: ([[:graph:]]+|[[:space:]])+ \(([[:upper:]]|\_)+\)'; then
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            echo "error: commit message has an improperly formatted CID defect line"
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            error=1
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        fi
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    done
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    IFS=$OLDIFS
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    # ensure that no lines in the body of the commit are over 72 characters
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    if ! test_commit_bodylength; then
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        error=1
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    fi
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    return "$error"
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}
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if [ -n "$1" ]; then
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    REF="$1"
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fi
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# if coverity fix, test against that
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if is_coverity_fix; then
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    if ! coverity_fix_commit; then
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        exit 1
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    else
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        exit 0
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    fi
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fi
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# have a normal commit
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if ! new_change_commit ; then
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    exit 1
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fi
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exit 0
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