1 | #!/bin/bash |
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2 | |
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3 | #----------------------------------------------------------- |
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4 | # $Id: execute.sh 112 2009-03-18 22:36:26Z rosiere $ |
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5 | #----------------------------------------------------------- |
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6 | |
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7 | #-----[ global variable ]----------------------------------- |
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8 | |
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9 | #-----[ lock ]---------------------------------------------- |
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10 | function lock () |
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11 | { |
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12 | lockfile -1 ${1}; |
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13 | } |
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14 | |
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15 | #-----[ unlock ]-------------------------------------------- |
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16 | function unlock () |
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17 | { |
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18 | rm -f ${1}; |
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19 | } |
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20 | |
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21 | #-----[ my_date ]------------------------------------------- |
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22 | function my_date () |
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23 | { |
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24 | date +"%F %T"; |
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25 | } |
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26 | |
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27 | #-----[ execute_usage ]------------------------------------- |
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28 | function execute_usage () |
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29 | { |
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30 | echo "Usage : ${0} work_dir file_cmd file_cpt file_cpu"; |
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31 | echo "Arguments : "; |
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32 | echo " * work_dir : directory to execute command"; |
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33 | echo " * file_cmd : list of command"; |
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34 | echo " * file_cpt : file with the index of next command to execute"; |
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35 | echo " * file_cpu : tmp file to stock the current index"; |
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36 | exit; |
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37 | } |
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38 | |
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39 | #-----[ execute_test_usage ]-------------------------------- |
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40 | function execute_test_usage () |
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41 | { |
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42 | if test ${#} -ne 4; then |
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43 | execute_usage; |
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44 | fi; |
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45 | |
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46 | if test ! -d ${1}; then |
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47 | echo "Directory ${1} is invalid"; |
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48 | fi; |
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49 | } |
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50 | |
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51 | #-----[ execute ]------------------------------------------- |
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52 | function execute () |
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53 | { |
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54 | # test_usage |
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55 | execute_test_usage ${*}; |
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56 | |
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57 | local -a COMMAND; |
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58 | local -i CPT_OLD; |
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59 | local -i CPT; |
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60 | local WORK_DIR=${1}; |
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61 | local FILE_CMD=${2}; |
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62 | local FILE_CPT=${3}; |
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63 | local FILE_CPU=${4}; |
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64 | local LOCK_CPT="${WORK_DIR}/.lock-cpt"; |
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65 | local LOCK_CPU="${WORK_DIR}/.lock-cpu"; |
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66 | local FILE_CMD="distexe.command"; |
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67 | local FILE_OUT="distexe.output"; |
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68 | |
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69 | |
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70 | # Init CPT if this thread is the first |
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71 | lock ${LOCK_CPT}; |
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72 | if test ! -s ${FILE_CPT}; then |
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73 | echo "0" > ${FILE_CPT}; |
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74 | fi; |
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75 | unlock ${LOCK_CPT}; |
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76 | |
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77 | # read, line by line, the command file and write in array |
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78 | CPT=0; |
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79 | |
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80 | while read line; do |
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81 | COMMAND[${CPT}]="${line}"; |
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82 | CPT=$((${CPT}+1)); |
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83 | done < ${FILE_CMD}; |
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84 | |
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85 | echo " * <${HOSTNAME}-$$> {"$(my_date)"} is ready"; |
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86 | |
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87 | # infinite loop |
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88 | CPT_OLD=0; |
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89 | CPT=0; |
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90 | |
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91 | while test 1; do |
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92 | # Take a number |
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93 | CPT_OLD=${CPT}; |
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94 | |
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95 | # Read the index, and increase |
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96 | lock ${LOCK_CPT}; |
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97 | CPT=$(cat ${FILE_CPT}); |
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98 | echo "$((${CPT}+1))" > ${FILE_CPT}; |
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99 | unlock ${LOCK_CPT}; |
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100 | |
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101 | # test if this number is valid |
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102 | if test ${CPT} -ge ${#COMMAND[*]}; then |
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103 | CPT=${#COMMAND[*]}; |
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104 | fi; |
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105 | |
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106 | # test if between the cpt_old and cpt, there are a synchronisation command |
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107 | |
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108 | # local -i CPT_SYNC=${CPT}_OLD; |
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109 | # |
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110 | # while test ${CPT}_SYNC -lt ${CPT}; do |
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111 | # if test -z "${COMMAND[${CPT}_SYNC]}"; then |
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112 | # echo " * <${HOSTNAME}-$$> {"$(my_date)"} synchronisation [${CPT}_SYNC]"; |
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113 | # fi; |
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114 | # CPT_SYNC=$((${CPT}_SYNC+1)); |
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115 | # done; |
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116 | |
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117 | # test if this number is valid |
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118 | if test ${CPT} -eq ${#COMMAND[*]}; then |
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119 | break; |
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120 | fi; |
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121 | |
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122 | # Test if command is empty ! |
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123 | if test ! -z "${COMMAND[${CPT}]}"; then |
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124 | local CURREN_DIR=${PWD}; |
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125 | cd ${WORK_DIR} &> /dev/null; |
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126 | mkdir "Task_${CPT}" &> /dev/null; |
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127 | cd "Task_${CPT}" &> /dev/null; |
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128 | echo " * <${HOSTNAME}-$$> {"$(my_date)"} execute command [${CPT}] : ${COMMAND[${CPT}]}"; |
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129 | echo "${COMMAND[${CPT}]}" > ${FILE_CMD}; |
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130 | # chmod +x ${FILE_CMD}; |
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131 | eval "${COMMAND[${CPT}]}" &> ${FILE_OUT}; |
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132 | cd ${CURREN_DIR} &> /dev/null; |
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133 | fi; |
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134 | done; |
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135 | |
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136 | echo " * <${HOSTNAME}-$$> {"$(my_date)"} is done"; |
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137 | |
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138 | lock ${LOCK_CPU}; |
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139 | CPT=$(cat ${FILE_CPU}); # read the index |
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140 | CPT=$((${CPT}-1)); |
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141 | echo "${CPT}" > ${FILE_CPU}; # write the next index |
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142 | unlock ${LOCK_CPU}; |
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143 | |
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144 | if test ${CPT} -eq 0; then |
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145 | echo " * <${HOSTNAME}-$$> {"$(my_date)"} All task is executed"; |
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146 | rm ${FILE_CPU}; |
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147 | fi; |
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148 | } |
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149 | |
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150 | #-----[ Corps ]--------------------------------------------- |
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151 | execute ${*}; |
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