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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 6725 | siemargl | 1 | #!/bin/sh |
| 2 | # |
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| 3 | # zipgrep: Use unzip and egrep to search the specified members of a |
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| 4 | # Zip archive for a string or pattern. Search all members if no members |
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| 5 | # are specified explicitly. The script attempts to handle egrep's "-h" |
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| 6 | # and "-l" options internally. |
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| 7 | # |
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| 8 | # This script assumes that the desired "unzip" and "egrep" (and "sed") |
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| 9 | # programs are on the user's PATH. |
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| 10 | # |
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| 11 | |||
| 12 | pat="" |
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| 13 | opt="" |
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| 14 | while test $# -ne 0; do |
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| 15 | case "$1" in |
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| 16 | -e | -f) opt="$opt $1"; shift; pat="$1";; |
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| 17 | -*) opt="$opt $1";; |
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| 18 | *) if test -z "$pat"; then |
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| 19 | pat="$1" |
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| 20 | else |
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| 21 | break; |
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| 22 | fi;; |
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| 23 | esac |
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| 24 | shift |
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| 25 | done |
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| 26 | |||
| 27 | if test $# = 0; then |
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| 28 | echo usage: `basename "$0"` "[egrep_options] pattern zipfile [members...]" |
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| 29 | echo Uses unzip and egrep to search the zip members for a string or pattern. |
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| 30 | exit 1 |
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| 31 | fi |
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| 32 | zipfile="$1"; shift |
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| 33 | |||
| 34 | list=0 |
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| 35 | silent=0 |
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| 36 | opt=`echo "$opt" | sed -e 's/ //g' -e 's/-//g'` |
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| 37 | case "$opt" in |
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| 38 | *l*) list=1; opt=`echo $opt | sed s/l//` |
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| 39 | esac |
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| 40 | case "$opt" in |
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| 41 | *h*) silent=1 |
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| 42 | esac |
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| 43 | if test -n "$opt"; then |
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| 44 | opt="-$opt" |
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| 45 | fi |
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| 46 | |||
| 47 | status_grep_global=1 |
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| 48 | IFS=' |
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| 49 | ' |
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| 50 | |||
| 51 | # Escape shell-special characters in "pat". |
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| 52 | pat=` echo "$pat" | \ |
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| 53 | sed -e 's/\\\\/\\\\\\\\/g' -e 's/|/\\\|/g' -e 's/&/\\\&/g' ` |
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| 54 | |||
| 55 | # Use "unzip -Z1" to get a listing of the specified members from the |
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| 56 | # specified archive. Escape any backslashes in a file name. |
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| 57 | for i in `unzip -Z1 "$zipfile" ${1+"$@"} | sed -e 's/\\\\/\\\\\\\\/g' `; do |
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| 58 | if test $list -eq 1; then |
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| 59 | # "-l": Show only the archive member name, not the matching line(s). |
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| 60 | unzip -p-L "$zipfile" "$i" | \ |
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| 61 | egrep $opt "$pat" > /dev/null && echo "$i" |
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| 62 | status_grep=$? |
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| 63 | elif test $silent -eq 1; then |
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| 64 | # "-h": Show only the matching line(s), not the archive member name. |
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| 65 | # ("-s" in "opt" will silence "egrep", stopping all output.) |
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| 66 | unzip -p-L "$zipfile" "$i" | \ |
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| 67 | egrep $opt "$pat" |
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| 68 | status_grep=$? |
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| 69 | else |
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| 70 | # Escape (or re-escape) shell-special characters in the archive |
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| 71 | # member name, "i". |
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| 72 | i=` echo "$i" | \ |
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| 73 | sed -e 's/\\\\/\\\\\\\\/g' -e 's/|/\\\|/g' -e 's/&/\\\&/g' ` |
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| 74 | |||
| 75 | # Globally, send fd 4 to stdout. In the pipeline, send normal |
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| 76 | # stdout to fd 4, and send grep status to fd 3. Collect fd 3 |
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| 77 | # with ``. |
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| 78 | exec 4>&1 |
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| 79 | status_grep=` ( \ |
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| 80 | ( unzip -p-L "$zipfile" "$i" | \ |
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| 81 | egrep $opt "$pat" 1>&4 ; echo $? >&3 ) 4>&1 | \ |
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| 82 | sed "s|^|${i}:|" 1>&4 \ |
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| 83 | ) 3>&1 ` |
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| 84 | fi |
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| 85 | |||
| 86 | # Save the primary command status. (May be the grep status.) |
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| 87 | sts=$? |
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| 88 | # If this grep status was zero, set the global grep status to zero. |
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| 89 | test "$status_grep" -eq 0 && status_grep_global=0 |
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| 90 | # If this grep status was not zero or one, exit now. |
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| 91 | test "$status_grep" -gt 1 && exit "$status_grep" |
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| 92 | |||
| 93 | done |
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| 94 | |||
| 95 | # If "sts" is good (0), then exit with the global grep status. |
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| 96 | # Else, when "sts" is bad, exit with the worst status we can find. |
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| 97 | if test $sts -eq 0 ; then |
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| 98 | exit $status_grep_global |
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| 99 | else |
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| 100 | if test "$status_grep" -gt 1 ; then |
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| 101 | exit "$status_grep" |
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| 102 | else |
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| 103 | exit $sts |
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| 104 | fi |
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| 105 | fi |