s3-delete

   1 #! /usr/bin/env bash
   2 cat > /dev/null << EndOfLicence
   3 s3-bash
   4 Copyright 2007 Raphael James Cohn
   5
   6 Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
   7 in compliance with the License.
   8 You may obtain a copy of the License at
   9
  10         http://www.apache.org/licenses/LICENSE-2.0
  11
  12 Unless required by applicable law or agreed to in writing, software distributed under the License
  13 is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
  14 or implied. See the License for the specific language governing permissions and limitations under
  15 the License.
  16 EndOfLicence
  17
  18 # Pragmas
  19 set -u
  20 set -e
  21
  22 function printHelpAndExit
  23 {
  24         exitCode=$1
  25         printf "%s: version %s\n" "$weAreKnownAs" "$version"
  26         printf "Part of s3-bash. Latest version is at %s\n" 'http://code.google.com/p/s3-bash/'
  27         printf "Usage %s: -h\n" "$weAreKnownAs"
  28         printf "Usage %s: [-vS] [-H file] [-a file] -k key -s file url\n" "$weAreKnownAs"
  29         printf " Option\tType\tRequirement\tDescription\n"
  30         printf " -h\t\tprecedent\tprint this help\n"
  31         printf " -v\t\toptional\tverbose output\n"
  32         printf " -k\tstring\tmandatory\tAWS Access Key Id\n"
  33         printf " -s\tfile\tmandatory\tAWS Secret Access Key Id File\n"
  34         printf " -S\t\toptional\tUse https\n"
  35         printf " -H\tfile\toptional\tFile to write response headers to\n"
  36         printf " -a\tfile\toptional\tFile to read Amazon custom headers from (X-Amz-Date is not allowed)\n"
  37         printf " \turl\tmandatory\trelative url including bucket name and leading slash, eg /bucket/path/to/object?acl. Assumed to be already encoded\n"
  38         printf "\n"
  39         printf "Notes\n"
  40         printf "Specify proxies using a ~/.curlrc file\n"
  41         exit $exitCode
  42 }
  43
  44 function parseOptions
  45 {
  46         verbose=""
  47         url=""
  48         awsAccessKeyId=""
  49         awsAccessSecretKeyIdFile=""
  50         protocol="http"
  51         dumpHeaderFile="/dev/null"
  52         amazonHeaderFile="/dev/null"
  53         while getopts "hvk:s:SH:T:a:" optionName; do
  54                 case "$optionName" in
  55                         h)      printHelpAndExit 0;;
  56                         v)      verbose="-v";;
  57                         k)      awsAccessKeyId="$OPTARG";;
  58                         s)      awsAccessSecretKeyIdFile="$OPTARG"
  59                                 if [ ! -e "$awsAccessSecretKeyIdFile" ]; then
  60                                         printErrorHelpAndExit "AWS Secret Key Id file does not exist" $userSpecifiedDataErrorExitCode
  61                                 fi;;
  62                         S)      protocol="https";;
  63                         H)      dumpHeaderFile="$OPTARG";;
  64                         a)      amazonHeaderFile="$OPTARG";;
  65                         [?])    printErrorHelpAndExit "Option not recognised" $userSpecifiedDataErrorExitCode;;
  66                 esac
  67         done
  68         if [ 1 -eq $OPTIND ]; then
  69                 printErrorHelpAndExit "Internal Error: parseOptions or a parent method in the call stack was not called with $"@"." $internalErrorExitCode
  70         fi
  71         let "toShift = $OPTIND - 1"
  72         shift $toShift
  73         if [ $# -eq 0 ]; then
  74                 printErrorHelpAndExit "URL not specified" $userSpecifiedDataErrorExitCode
  75         fi
  76         url="$1"
  77         verifyUrl
  78
  79         if [ -z "$awsAccessSecretKeyIdFile" ]; then
  80                 printErrorHelpAndExit "AWS Secret Access Key file not specified" $userSpecifiedDataErrorExitCode
  81         elif [ -z "$awsAccessKeyId" ]; then
  82                 printErrorHelpAndExit "AWS Access Key Id not specified" $userSpecifiedDataErrorExitCode
  83         fi
  84 }
  85
  86 function prepareToRunCurl
  87 {
  88         readonly verb="DELETE"
  89         readonly verbToPass="-X DELETE"
  90         readonly contentMD5=""
  91         readonly contentType=""
  92 }
  93
  94 readonly weAreKnownAs="$(basename $0)"
  95 readonly ourPath="$(dirname $0)"
  96
  97 readonly commonFunctions="$ourPath/s3-common-functions"
  98 if [ -e "$commonFunctions" ]; then
  99         source "$commonFunctions"
 100 else
 101         version="Unknown"
 102         invalidEnvironmentExitCode=4
 103         printHelpAndExit "$weAreKnownAs: Could not locate file s3-common-functions" $invalidEnvironmentExitCode
 104 fi
 105
 106 main "$@"