diff options
Diffstat (limited to 'build-aux')
| -rwxr-xr-x | build-aux/git-hooks/commit-msg | 38 |
1 files changed, 20 insertions, 18 deletions
diff --git a/build-aux/git-hooks/commit-msg b/build-aux/git-hooks/commit-msg index 6721d53a58..5b07b6c5d6 100755 --- a/build-aux/git-hooks/commit-msg +++ b/build-aux/git-hooks/commit-msg @@ -29,34 +29,36 @@ fi # Use a UTF-8 locale if available, so that the UTF-8 check works. # Use U+00A2 CENT SIGN to test whether the locale works. -cent_sign_utf8_octal='\302\242' -at_sign=` - printf "${cent_sign_utf8_octal}@" | - $awk '{print substr($0, 2)}' 2>/dev/null -` +cent_sign_utf8_format='\302\242\n' +cent_sign=`printf "$cent_sign_utf8_format"` +print_at_sign='{print substr("'$cent_sign'@", 2)}' +at_sign=`$awk "$print_at_sign" 2>/dev/null` if test "$at_sign" != @; then - at_sign=` - printf "${cent_sign_utf8_octal}@" | - LC_ALL=en_US.UTF-8 $awk '{print substr($0, 2)}' 2>/dev/null - ` + at_sign=`LC_ALL=en_US.UTF-8 $awk "$print_at_sign" 2>/dev/null` if test "$at_sign" = @; then LC_ALL=en_US.UTF-8; export LC_ALL fi fi # Check the log entry. -exec $awk ' +exec $awk -v at_sign="$at_sign" -v cent_sign="$cent_sign" ' BEGIN { + # These regular expressions assume traditional Unix unibyte behavior. + # They are needed for old or broken versions of awk, e.g., + # mawk 1.3.3 (1996), Gawk 3.0.4 (1999). + space = "[ \f\n\r\t\v]" + non_space = "[^ \f\n\r\t\v]" + non_print = "[\1-\37\177]" + + # Prefer POSIX regular expressions if available, as they do a + # better job of checking. Similarly, prefer POSIX negated + # expressions if UTF-8 also works. if (" " ~ /[[:space:]]/) { space = "[[:space:]]" - non_space = "[^[:space:]]" - non_print = "[^[:print:]]" - } else { - # mawk 1.3.3 does not support POSIX bracket expressions. - # Approximate them as best we can. - space = "[ \f\n\r\t\v]" - non_space = "[^ \f\n\r\t\v]" - non_print = "[\1-\37\177]" + if (at_sign == "@" && cent_sign ~ /^[[:print:]]$/) { + non_space = "[^[:space:]]" + non_print = "[^[:print:]]" + } } } |