1 | #! /bin/sh |
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2 | # |
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3 | # usage for NEMO doc to create an update of the Namelists directory : |
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4 | # 1- delete the existing directory (You can also choose to save it somewhere) |
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5 | # rm -rf Namelists |
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6 | # 2- create the updated Namelists directory from the SHARED/namelist_ref : |
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7 | # ./namelist_split.sh -i ../NEMOGCM/CONFIG/SHARED/namelist_ref -o Namelists |
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8 | # |
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9 | # .. _namelist_split.sh: |
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10 | # |
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11 | # ================= |
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12 | # namelist_split.sh |
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13 | # ================= |
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14 | # |
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15 | # ---------------- |
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16 | # split a namelist |
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17 | # ---------------- |
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18 | # |
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19 | # SYNOPSIS |
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20 | # ======== |
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21 | # |
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22 | # .. code-block:: bash |
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23 | # |
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24 | # namelist_split.sh -i namelist -o dirout [-n] |
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25 | # |
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26 | # DESCRIPTION |
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27 | # =========== |
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28 | # |
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29 | # Split a namelist file (NEMO convention syntax) given in parameter |
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30 | # into files in a given output directory. |
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31 | # |
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32 | # .. option:: -i <input file (namelist)> |
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33 | # .. option:: -o <output directory> |
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34 | # .. option:: -n <numbered output files> |
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35 | # |
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36 | # Each file of the output directory is named after the *block* it contains. |
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37 | # |
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38 | # We assume here that the input file is written with this pattern of block: |
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39 | # |
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40 | # .. parsed-literal:: |
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41 | # |
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42 | # !--------------- |
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43 | # &nameblock |
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44 | # !--------------- |
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45 | # var1 = val1 |
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46 | # ... |
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47 | # varn = valn |
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48 | # / |
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49 | # |
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50 | # If ``-n`` option is used, files in the directory output are named after |
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51 | # the number of the block it contains and the name of this block. This might |
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52 | # be useful to recombine blocks in the same order. |
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53 | # |
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54 | # EXAMPLES |
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55 | # ======== |
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56 | # |
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57 | # To split the namelist NEMO ORCA2_LIM experiment 00 if you are in NEMO |
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58 | # working space : |
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59 | # |
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60 | # .. code-block:: bash |
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61 | # |
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62 | # namelist_split.sh -i CONFIG/ORCA2_LIM/EXP00/namelist -o /tmp/EXP00_namelist_split/ |
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63 | # |
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64 | # To split the namelist under data directory with numbered files: |
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65 | # |
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66 | # .. code-block:: bash |
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67 | # |
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68 | # namelist_split.sh -i ./data/namelist -o /tmp/EXP00_namelist_split/ -n |
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69 | # |
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70 | # Check can be made by concatenation of files in output directory if ``-n`` |
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71 | # option have been used and comparison with original file : |
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72 | # |
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73 | # .. code-block:: bash |
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74 | # |
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75 | # cat /tmp/EXP00_namelist_split/b???_* > /tmp/EXP00_namelist_rebuild |
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76 | # sdiff -w80 ./data/namelist /tmp/EXP00_namelist_rebuild |
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77 | # |
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78 | # Output contains lines which are before the first block, after the last |
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79 | # block and lines between blocks. |
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80 | # |
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81 | # EVOLUTIONS |
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82 | # ========== |
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83 | # |
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84 | # $Id$ |
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85 | # |
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86 | # - fplod 2008-08-11T08:56:44Z aedon.locean-ipsl.upmc.fr (Darwin) |
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87 | # |
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88 | # * commentaires dans ce fichier en reStructuredText |
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89 | # cf. reStructuredText_ and Docutils_ |
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90 | # |
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91 | # .. _reStructuredText: http://docutils.sourceforge.net/rst.html |
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92 | # .. _Docutils: http://docutils.sourceforge.net/ |
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93 | # |
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94 | # - fplod 2008-07-22T12:41:04Z aedon.locean-ipsl.upmc.fr (Darwin) |
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95 | # |
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96 | # * creation with test on |
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97 | # http://forge.ipsl.jussieu.fr/nemo/browser/trunk/CONFIG/ORCA2_LIM/EXP00/namelist revision 1151 |
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98 | #- |
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99 | # |
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100 | system=$(uname) |
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101 | case "${system}" in |
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102 | AIX|IRIX64) |
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103 | echo " www : no specific posix checking" |
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104 | ;; |
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105 | *) |
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106 | set -o posix |
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107 | ;; |
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108 | esac |
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109 | unset system |
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110 | # |
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111 | command=$(basename ${0}) |
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112 | log_date=$(date -u +"%Y%m%dT%H%M%SZ") |
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113 | # |
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114 | usage=" Usage : ${command} -i namelist -o dirout [-n]" |
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115 | # |
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116 | # default |
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117 | blocknum=0 |
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118 | # |
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119 | minargcount=4 |
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120 | if [ ${#} -lt ${minargcount} ] |
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121 | then |
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122 | echo "eee : not enough arguments" |
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123 | echo "${usage}" |
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124 | exit 1 |
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125 | fi |
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126 | # |
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127 | while [ ${#} -gt 0 ] |
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128 | do |
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129 | case ${1} in |
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130 | -i) |
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131 | filein=${2} |
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132 | shift |
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133 | ;; |
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134 | -o) |
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135 | dirout=${2} |
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136 | shift |
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137 | ;; |
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138 | -h) |
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139 | echo "${usage}" |
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140 | exit 0 |
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141 | ;; |
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142 | -n) |
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143 | blocknum=1 |
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144 | ;; |
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145 | *) |
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146 | # anything else |
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147 | echo "eee : unknown option ${1}" |
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148 | echo "eee : ${usage}" |
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149 | exit 1 |
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150 | ;; |
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151 | esac |
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152 | # next flag |
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153 | shift |
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154 | done |
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155 | unset usage |
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156 | # |
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157 | set -u |
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158 | # |
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159 | # check for filein |
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160 | if [ ! -r ${filein} ] |
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161 | then |
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162 | echo "eee : ${filein} not accessible" |
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163 | exit 1 |
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164 | fi |
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165 | # |
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166 | # check for dirout |
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167 | # the idea is to prevent unwanted overwrite |
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168 | if [ -d ${dirout} ] |
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169 | then |
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170 | echo "eee : ${dirout} already exist" |
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171 | exit 1 |
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172 | else |
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173 | mkdir -p ${dirout} |
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174 | if [ ${?} -ne 0 ] |
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175 | then |
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176 | echo "eee : cannot create ${dirout}" |
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177 | exit 1 |
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178 | fi |
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179 | fi |
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180 | # |
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181 | # loop on each line of ${filein} ie the namelist to be split |
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182 | fileout=/dev/null |
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183 | begin=0 |
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184 | if [ ${blocknum} -eq 1 ] |
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185 | then |
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186 | iblock=0 |
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187 | fi |
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188 | nbline=$(wc -l ${filein} | awk '{print $1}') |
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189 | il=1 |
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190 | while [ ${il} -le ${nbline} ] |
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191 | do |
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192 | line=$(sed -ne "${il},${il}p" ${filein}) |
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193 | # if current line start with "&", we can establish the name of output file |
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194 | echo ${line} | grep -q "^&" |
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195 | if [ ${?} -eq 0 ] |
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196 | then |
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197 | begin=1 |
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198 | # the form of this line is "&block !" |
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199 | block=${line#&} |
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200 | block=${block%% *} |
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201 | echo "iii : detection of the beginning of ${block}" |
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202 | if [ ${blocknum} -eq 1 ] |
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203 | then |
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204 | iblock=$(( ${iblock} + 1)) |
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205 | fileout=${dirout}/b$(echo ${iblock} | awk '{printf "%3.3d", $1}')_${block} |
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206 | else |
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207 | fileout="${dirout}/${block}" |
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208 | fi |
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209 | # check for ${fileout} |
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210 | if [ -f ${fileout} ] |
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211 | then |
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212 | echo "eee : ${fileout} already exists" |
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213 | exit 1 |
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214 | fi |
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215 | # write the previous line and the current line |
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216 | echo "${memoline}" > ${fileout} |
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217 | echo "${line}" >> ${fileout} |
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218 | fi |
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219 | # if current line contains "/" there will be no more lines to put in fileout |
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220 | echo ${line} | grep -q "^/$" |
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221 | if [ ${?} -eq 0 ] |
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222 | then |
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223 | echo "iii : detection of the end of ${block}" |
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224 | echo "${line}" >> ${fileout} |
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225 | fileout="/dev/null" |
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226 | fi |
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227 | # if current line is between "&" and "/", it should be written in fileout |
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228 | # if current line is before the first &, it won't be written |
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229 | if [ "${fileout}" != "/dev/null" ] |
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230 | then |
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231 | if [ ${begin} -eq 0 ] |
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232 | then |
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233 | echo "${line}" >> ${fileout} |
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234 | fi |
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235 | fi |
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236 | # keep memory of this current line to use it if the next one is the |
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237 | # beginning of a block |
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238 | memoline=${line} |
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239 | begin=0 |
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240 | # next line |
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241 | il=$(( ${il} + 1 )) |
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242 | done |
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243 | # |
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244 | echo "iii : ${filein} is split in ${dirout}" |
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245 | # |
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246 | # end |
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247 | exit 0 |
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