diff options
Diffstat (limited to '')
-rw-r--r-- | bzdiff | 76 | ||||
-rw-r--r-- | bzdiff.1 | 47 |
2 files changed, 123 insertions, 0 deletions
@@ -0,0 +1,76 @@ | |||
1 | #!/bin/sh | ||
2 | # sh is buggy on RS/6000 AIX 3.2. Replace above line with #!/bin/ksh | ||
3 | |||
4 | # Bzcmp/diff wrapped for bzip2, | ||
5 | # adapted from zdiff by Philippe Troin <phil@fifi.org> for Debian GNU/Linux. | ||
6 | |||
7 | # Bzcmp and bzdiff are used to invoke the cmp or the diff pro- | ||
8 | # gram on compressed files. All options specified are passed | ||
9 | # directly to cmp or diff. If only 1 file is specified, then | ||
10 | # the files compared are file1 and an uncompressed file1.gz. | ||
11 | # If two files are specified, then they are uncompressed (if | ||
12 | # necessary) and fed to cmp or diff. The exit status from cmp | ||
13 | # or diff is preserved. | ||
14 | |||
15 | PATH="/usr/bin:$PATH"; export PATH | ||
16 | prog=`echo $0 | sed 's|.*/||'` | ||
17 | case "$prog" in | ||
18 | *cmp) comp=${CMP-cmp} ;; | ||
19 | *) comp=${DIFF-diff} ;; | ||
20 | esac | ||
21 | |||
22 | OPTIONS= | ||
23 | FILES= | ||
24 | for ARG | ||
25 | do | ||
26 | case "$ARG" in | ||
27 | -*) OPTIONS="$OPTIONS $ARG";; | ||
28 | *) if test -f "$ARG"; then | ||
29 | FILES="$FILES $ARG" | ||
30 | else | ||
31 | echo "${prog}: $ARG not found or not a regular file" | ||
32 | exit 1 | ||
33 | fi ;; | ||
34 | esac | ||
35 | done | ||
36 | if test -z "$FILES"; then | ||
37 | echo "Usage: $prog [${comp}_options] file [file]" | ||
38 | exit 1 | ||
39 | fi | ||
40 | tmp=`tempfile -d /tmp -p bz` || { | ||
41 | echo 'cannot create a temporary file' >&2 | ||
42 | exit 1 | ||
43 | } | ||
44 | set $FILES | ||
45 | if test $# -eq 1; then | ||
46 | FILE=`echo "$1" | sed 's/.bz2$//'` | ||
47 | bzip2 -cd "$FILE.bz2" | $comp $OPTIONS - "$FILE" | ||
48 | STAT="$?" | ||
49 | |||
50 | elif test $# -eq 2; then | ||
51 | case "$1" in | ||
52 | *.bz2) | ||
53 | case "$2" in | ||
54 | *.bz2) | ||
55 | F=`echo "$2" | sed 's|.*/||;s|.bz2$||'` | ||
56 | bzip2 -cdfq "$2" > $tmp | ||
57 | bzip2 -cdfq "$1" | $comp $OPTIONS - $tmp | ||
58 | STAT="$?" | ||
59 | /bin/rm -f $tmp;; | ||
60 | |||
61 | *) bzip2 -cdfq "$1" | $comp $OPTIONS - "$2" | ||
62 | STAT="$?";; | ||
63 | esac;; | ||
64 | *) case "$2" in | ||
65 | *.bz2) | ||
66 | bzip2 -cdfq "$2" | $comp $OPTIONS "$1" - | ||
67 | STAT="$?";; | ||
68 | *) $comp $OPTIONS "$1" "$2" | ||
69 | STAT="$?";; | ||
70 | esac;; | ||
71 | esac | ||
72 | exit "$STAT" | ||
73 | else | ||
74 | echo "Usage: $prog [${comp}_options] file [file]" | ||
75 | exit 1 | ||
76 | fi | ||
diff --git a/bzdiff.1 b/bzdiff.1 new file mode 100644 index 0000000..adb7a8e --- /dev/null +++ b/bzdiff.1 | |||
@@ -0,0 +1,47 @@ | |||
1 | \"Shamelessly copied from zmore.1 by Philippe Troin <phil@fifi.org> | ||
2 | \"for Debian GNU/Linux | ||
3 | .TH BZDIFF 1 | ||
4 | .SH NAME | ||
5 | bzcmp, bzdiff \- compare bzip2 compressed files | ||
6 | .SH SYNOPSIS | ||
7 | .B bzcmp | ||
8 | [ cmp_options ] file1 | ||
9 | [ file2 ] | ||
10 | .br | ||
11 | .B bzdiff | ||
12 | [ diff_options ] file1 | ||
13 | [ file2 ] | ||
14 | .SH DESCRIPTION | ||
15 | .I Bzcmp | ||
16 | and | ||
17 | .I bzdiff | ||
18 | are used to invoke the | ||
19 | .I cmp | ||
20 | or the | ||
21 | .I diff | ||
22 | program on bzip2 compressed files. All options specified are passed | ||
23 | directly to | ||
24 | .I cmp | ||
25 | or | ||
26 | .IR diff "." | ||
27 | If only 1 file is specified, then the files compared are | ||
28 | .I file1 | ||
29 | and an uncompressed | ||
30 | .IR file1 ".bz2." | ||
31 | If two files are specified, then they are uncompressed if necessary and fed to | ||
32 | .I cmp | ||
33 | or | ||
34 | .IR diff "." | ||
35 | The exit status from | ||
36 | .I cmp | ||
37 | or | ||
38 | .I diff | ||
39 | is preserved. | ||
40 | .SH "SEE ALSO" | ||
41 | cmp(1), diff(1), bzmore(1), bzless(1), bzgrep(1), bzip2(1) | ||
42 | .SH BUGS | ||
43 | Messages from the | ||
44 | .I cmp | ||
45 | or | ||
46 | .I diff | ||
47 | programs refer to temporary filenames instead of those specified. | ||