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| author | Lasse Collin <lasse.collin@tukaani.org> | 2024-02-09 23:21:01 +0200 |
|---|---|---|
| committer | Lasse Collin <lasse.collin@tukaani.org> | 2024-02-09 23:21:01 +0200 |
| commit | 9860d418d296eb3c721e5384fb367c0499b579c8 (patch) | |
| tree | 45dd978698cda092cb6965b03724174efd079acc | |
| parent | xzless: Use --show-preproc-errors with "less" 632 and newer. (diff) | |
| download | xz-9860d418d296eb3c721e5384fb367c0499b579c8.tar.xz | |
xzless: Use ||- in LESSOPEN with with "less" 451 and newer.
| -rw-r--r-- | src/scripts/xzless.in | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/scripts/xzless.in b/src/scripts/xzless.in index 93a415d7..53650ef1 100644 --- a/src/scripts/xzless.in +++ b/src/scripts/xzless.in @@ -48,7 +48,14 @@ if test "${LESSMETACHARS+set}" != set; then fi VER=$(less -V | { read _ ver _ && echo ${ver%%.*}; }) -if test "$VER" -ge 429; then +if test "$VER" -ge 451; then + # less 451 or later: If the compressed file is valid but has + # zero bytes of uncompressed data, using two vertical bars ||- makes + # "less" check the exit status of xz and if it is zero then display + # an empty file. With a single vertical bar |- and no output from xz, + # "less" would attempt to display the raw input file instead. + LESSOPEN="||-$xz -cdfqQ -- %s" +elif test "$VER" -ge 429; then # less 429 or later: LESSOPEN pipe will be used on # standard input if $LESSOPEN begins with |-. LESSOPEN="|-$xz -cdfqQ -- %s" |