[29996] | 1 | #!/bin/bash
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| 2 |
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| 3 | # This script is called each time a nightly GS file (binary or otherwise) gets uploaded to puka
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| 4 | # to the caveat-emptor folder. This script is called from
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| 5 | # nzdl@puka:[522]~/.ssh$ less authorized_keys
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| 6 |
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| 7 |
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| 8 | ######### GLOBAL VARS #########
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| 9 |
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| 10 | # http://stackoverflow.com/questions/1401482/yyyy-mm-dd-format-date-in-shell-script
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| 11 | # we want . as separator to produce: yyyy.mm.dd
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| 12 |
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| 13 | today=`date +%Y.%m.%d`
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| 14 |
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| 15 | # http://askubuntu.com/questions/367136/how-do-i-read-a-variable-from-a-file
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| 16 |
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| 17 | gs2version=`cat /greenstone/greenstone.org/base/next-release.txt`
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| 18 | gs3version=`cat /greenstone/greenstone.org/base/next-release-greenstone3.txt`
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| 19 |
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[30002] | 20 | # array of string literals of source component/distribution suffixes
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| 21 |
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| 22 | source_suffixes=("source-component.tar.gz" "source-component.zip" "source-distribution.tar.gz" "source-distribution.zip")
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| 23 |
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[29996] | 24 | # static array of string literals representing the caveat file suffixes we're interested in
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[30002] | 25 | # see also 'Adding New Elements to the Original Array'
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| 26 | # at http://www.yourownlinux.com/2013/10/working-with-arrays-in-bash-scripting.html
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[29996] | 27 |
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[30002] | 28 | suffixes=("linux" "linux-x64" "Lion-MacOS-intel.dmg" "MacOS-intel.dmg" "windows.exe" ${source_suffixes[@]})
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[29996] | 29 |
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| 30 | gs2_bin_prefix=Greenstone-$gs2version-candidate-$today-
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| 31 | gs3_bin_prefix=Greenstone-$gs3version-candidate-$today-
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| 32 |
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| 33 | #echo "Date is $today"
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| 34 | #echo "gs2ver is $gs2version"
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| 35 | #echo "gs3ver is $gs3version"
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| 36 | #echo "gs2_bin_prefix is $gs2_bin_prefix"
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| 37 | #echo "gs3_bin_prefix is $gs3_bin_prefix"
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| 38 |
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| 39 | caveat_dir=/greenstone/greenstone.org/base/caveat-emptor/
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| 40 | snapshots_dir=/greenstone/greenstone.org/base/release-snapshots/
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| 41 | latest_dir=${caveat_dir}latest/
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| 42 |
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| 43 | ###############################
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| 44 |
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| 45 | # Function that checks whether all of today's binaries for a gs_version (GS2 or GS3) are
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| 46 | # present in the caveat folder
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| 47 | # If so, it copies those bins over into the release-snapshots folder under new names
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| 48 |
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| 49 | # Non-ambiguous string concatenation: ${varname}string-literal
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| 50 | # stackoverflow.com/questions/4181703/how-can-i-concatenate-string-variables-in-bash
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| 51 |
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| 52 | function snapshots_for_gs_version () {
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| 53 |
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| 54 | # Local vs global variables in functions
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| 55 | # http://www.tldp.org/LDP/abs/html/localvar.html
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| 56 |
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| 57 | local gs_version=$1
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| 58 |
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| 59 | #check if we've found all gs_version nightly binaries
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| 60 | local foundallbins=true
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| 61 |
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| 62 | for suffix in ${suffixes[@]}; do
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| 63 | local file=$caveat_dir
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| 64 | if [ "$gs_version" == "2" ]; then
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| 65 | file=$file$gs2_bin_prefix$suffix
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| 66 | else
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| 67 | file=$file$gs3_bin_prefix$suffix
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| 68 | fi
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| 69 |
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| 70 | if [ ! -f $file ]; then
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| 71 | echo "File does not exist: $file"
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| 72 | foundallbins=false
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| 73 | #else
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| 74 | #echo "File exists: $file"
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| 75 | fi
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| 76 | done
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| 77 |
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| 78 | echo ""
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| 79 |
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| 80 | if [ "$foundallbins" == "true" ]; then
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| 81 | echo "All gs$gs_version binaries for $today generated"
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| 82 | echo ""
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| 83 |
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| 84 | # delete the old stables
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| 85 | echo "Deleting ${snapshots_dir}Greenstone-${gs_version}s*"
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| 86 | rm ${snapshots_dir}Greenstone-${gs_version}s*
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| 87 | echo ""
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| 88 |
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| 89 | # copy the gs2 binaries to release-snapshots folder
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| 90 | # under the new name Greenstone-${gs_version}sDATE-suffix, where gs_version = 2|3
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| 91 | # Use hardlinking instead of copy to save space
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| 92 |
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| 93 | for suffix in ${suffixes[@]}; do
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| 94 | local file=$caveat_dir
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| 95 | if [ "$gs_version" == "2" ]; then
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| 96 | file=$file$gs2_bin_prefix$suffix
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| 97 | else
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| 98 | file=$file$gs3_bin_prefix$suffix
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| 99 | fi
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| 100 | local newfile=${snapshots_dir}Greenstone-${gs_version}s${today}-$suffix
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| 101 |
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| 102 | # http://askubuntu.com/questions/108771/what-is-the-difference-between-a-hard-link-and-a-symbolic-link
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| 103 | # Q & A: The difference between hard and soft links at http://linuxgazette.tuwien.ac.at/105/pitcher.html
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| 104 | echo "Hardlinking file $file as $newfile"
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| 105 | ln $file $newfile
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| 106 |
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| 107 | done
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| 108 |
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| 109 | else
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| 110 | echo "Not all gs${gs_version} binaries for $today have been generated. (foundallbins: $foundallbins)"
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| 111 | fi
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| 112 |
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| 113 | echo ""
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| 114 |
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| 115 |
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| 116 | # cdrom components only for GS2
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| 117 |
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| 118 | if [ "$gs_version" == "2" ]; then
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| 119 |
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| 120 | echo "GS2 CD ROM components"
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| 121 | echo ""
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| 122 |
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| 123 | cd_suffixes=("linux" "linux-x64" "Lion-mac" "mac" "full-windows" "windows")
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| 124 | cdfile_src=cdrom-components-${gs2version}-candidate-${today}-
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| 125 |
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| 126 | local foundallcds=true
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| 127 |
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| 128 | for suffix in ${cd_suffixes[@]}; do
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| 129 |
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| 130 | local file=${caveat_dir}$cdfile_src${suffix}.tar.gz
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| 131 |
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| 132 | if [ ! -f $file ]; then
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| 133 | foundallcds=false
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| 134 | echo "Could not find cdrom component $file"
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| 135 | fi
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| 136 | done
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| 137 |
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| 138 | # if all cdrom components present, then copy across under new names
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| 139 | if [ "$foundallcds" == "true" ]; then
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| 140 |
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| 141 | # delete the old cdrom components from release-snapshots
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| 142 | echo "Deleting ${snapshots_dir}cdrom-components-2s*"
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| 143 | rm ${snapshots_dir}cdrom-components-2s*
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| 144 | echo ""
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| 145 |
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| 146 | # copy across the new cdrom components
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| 147 | # use hardlinking instead of copying to save space
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| 148 |
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| 149 | for suffix in ${cd_suffixes[@]}; do
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| 150 |
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| 151 | local srcfile=${caveat_dir}$cdfile_src${suffix}.tar.gz
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| 152 | local destfile=${snapshots_dir}cdrom-components-2s${today}-${suffix}.tar.gz
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| 153 | echo "Hardlinking $srcfile as $destfile"
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| 154 | ln $srcfile $destfile
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| 155 | done
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| 156 | fi
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| 157 |
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| 158 | echo ""
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| 159 | fi
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| 160 |
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| 161 |
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| 162 | }
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| 163 |
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| 164 | # Inspect the most recently added file in the caveat folder and iff it's a GS binary or src file,
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| 165 | # create a hardlink for it under the appropriate name in the 'latest' subfolder
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| 166 | # and delete the earlier variant of the same in 'latest'.
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| 167 | # In time may have to start including the GS documented examples archive files generated overnight.
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| 168 | #
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| 169 | # General: http://stackoverflow.com/questions/3601515/how-to-check-if-a-variable-is-set-in-bash
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| 170 |
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| 171 | function make_latest () {
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| 172 |
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| 173 | echo ""
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| 174 | #echo "In MAKE_LATEST"
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[29998] | 175 |
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| 176 | # Using local variable to loop through files, seen in http://mywiki.wooledge.org/ParsingLs
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| 177 | local latest
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| 178 | local file
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| 179 | local suffix
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[29996] | 180 |
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| 181 | # find the latest file in caveat, since this script is called upon each upload to puka's caveat
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| 182 | # http://stackoverflow.com/questions/5885934/bash-function-to-find-newest-file-matching-pattern
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| 183 | # http://mywiki.wooledge.org/BashFAQ/003
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[29998] | 184 | # http://tldp.org/LDP/abs/html/fto.html, where f1 -nt f2 means file f1 is newer than file f2
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| 185 | # http://superuser.com/questions/687523/get-the-last-file-name-in-a-variable-in-bash
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| 186 |
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[29996] | 187 | unset -v latest
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[29998] | 188 | #for file in "${caveat_dir}"*; do
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| 189 | #then file would be the full path. Instead, cd into the caveat dir to just get the filename
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| 190 | cd $caveat_dir
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| 191 | for file in *; do
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[30002] | 192 | [[ -f $file ]] && [[ "$file" == "Greenstone-"* ]] && [[ "$file" != *"Greenstone3-latest-source.tar.gz" ]] && [[ $file -nt $latest ]] && latest=$file
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[29996] | 193 | done
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[29998] | 194 | cd -
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[29996] | 195 |
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| 196 | # latest will not be undef, because this script is only ever called upon a legitimate
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| 197 | # file upload into puka's caveat-emptor location
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[29998] | 198 | # E.g. for testing, latest=Greenstone-3.07-candidate-2015.06.30-linux-x64
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[30004] | 199 |
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[29996] | 200 | echo "Latest file in caveat is: $latest"
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| 201 |
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[30002] | 202 | # splits the filename $latest by hyphens, -, and then gets the 2nd substring
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| 203 | # in this case the GS2 or GS3 full version number
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| 204 | # http://stackoverflow.com/questions/428109/extract-substring-in-bash
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[30004] | 205 |
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[30002] | 206 | local matchfile=`echo $latest| cut -d'-' -f 2`
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| 207 | echo "Found gs version prefix: $matchfile"
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| 208 |
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[29996] | 209 | # Iff this is a GS binary/src file that we want to maintain in the caveat/latest folder,
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| 210 | # then remove the older version of the same file from caveat/latest folder, if any,
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| 211 | # and hardlink the latest file into caveat/latest
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| 212 |
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| 213 | # Check whether the latest file ends with the binary/src suffix
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| 214 | # https://viewsby.wordpress.com/2013/09/06/bash-string-ends-with/
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| 215 | # single or double square brackets for testing conditions, [] vs [[]]
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| 216 | # http://stackoverflow.com/questions/669452/is-preferable-over-in-bash-scripts
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| 217 | # Need double brackets below, [[]], for string expansion with wildcard
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| 218 |
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| 219 |
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[30002] | 220 | # if the latest file is a src component or src dist, then all src comps and dists
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| 221 | # would have been uploaded simultaneously for that GS version. Check they're all there
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| 222 | # and remove any older equivalents in the caveat/latest directory. Then copy all the
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| 223 | # *source* files for this GS version over to caveat/latest
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[29996] | 224 |
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[30002] | 225 | echo ""
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| 226 | if [[ "$latest" == *"-source-"* ]]; then
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| 227 | for suffix in ${source_suffixes[@]}; do
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| 228 | local srcfile=Greenstone-${matchfile}-candidate-${today}-${suffix}
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| 229 | local regexfile=Greenstone-${matchfile}-candidate-*-${suffix}
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| 230 | if [[ -f ${caveat_dir}$srcfile ]]; then
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| 231 | echo "Removing ${latest_dir}$regexfile"
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| 232 | echo "and replacing with ${latest_dir}$srcfile"
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| 233 | rm ${latest_dir}$regexfile
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| 234 | ln ${caveat_dir}$srcfile ${latest_dir}$srcfile
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| 235 | fi
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| 236 | done
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[30004] | 237 |
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| 238 | elif [[ "$latest" == *"documented-examples-"* ]]; then
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| 239 | echo "DEC"
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| 240 |
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| 241 | # both documented examples zip and tar.gz files would have been generated and uploaded together
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| 242 |
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| 243 | local file=Greenstone-documented-examples-${today}
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| 244 | local re_file=Greenstone-documented-examples-*
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| 245 | local dec_exts=(".tar.gz" ".zip")
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| 246 |
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| 247 | for ext in ${dec_exts[@]}; do
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| 248 | if [[ -f ${caveat_dir}${file}.tar.gz ]]; then
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| 249 |
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| 250 | echo "Removing ${latest_dir}${re_file}${ext}"
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| 251 | echo "and replacing with ${latest_dir}${file}${ext}"
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| 252 |
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| 253 | rm ${latest_dir}${re_file}${ext}
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| 254 | ln ${caveat_dir}${file}${ext} ${latest_dir}${file}${ext}
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| 255 | fi
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| 256 | done
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| 257 |
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[30002] | 258 | else
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| 259 | # not src component or dist, but binary file, which are uploaded one at a time.
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[29996] | 260 |
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[30002] | 261 | for suffix in ${suffixes[@]}; do
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| 262 | if [[ "$latest" == *"$suffix" ]]; then
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| 263 | echo "Found that suffix matched: $suffix"
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| 264 |
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| 265 | matchfile=${latest_dir}Greenstone-${matchfile}-candidate-*-${suffix}
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| 266 |
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[29996] | 267 | # remove the matching file from the caveat/latest folder
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| 268 | # we don't know it's date, so we substituted that portion with a * as wildcard
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| 269 | # E.g. matchfile=<caveat>/latest/Greenstone-2.87-candidate-*-source-component.tar.gz
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[30002] | 270 |
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| 271 | echo "Removing $matchfile"
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| 272 | rm $matchfile
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| 273 |
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[29996] | 274 | # make a hardlink of the $latest file into the caveat_latest folder
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[30002] | 275 | echo "Making a hardlink to ${caveat_dir}$latest in ${latest_dir}$latest"
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| 276 | ln ${caveat_dir}$latest ${latest_dir}$latest
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| 277 | #else
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| 278 | #echo "$latest did not match $suffix"
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| 279 | fi
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| 280 | done
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| 281 | fi
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[29996] | 282 |
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| 283 | echo ""
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| 284 | }
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| 285 |
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| 286 | ####################
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| 287 |
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| 288 | # the 'main'
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| 289 |
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| 290 | # This script is called upon each upload to puka's caveat-emptor by
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| 291 | # the file nzdl@puka:[522]~/.ssh/authorized_keys
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| 292 |
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| 293 | # Check if conditions are true to create snapshots out of today's GS2 bins, these conditions
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| 294 | # being that all src and bins of GS2 have been generated for today.
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| 295 | # And if so, hardlink these src and bin files into the release-snapshots dir.
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| 296 | # Repeat for GS3.
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| 297 | # Finally, for each uploaded file that is a Greenstone src or binary file in caveat
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| 298 | # hardlink it into the caveat/latest folder to keep a copy of the most-recent version of that
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| 299 | # bin/file that was successfully generated.
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| 300 |
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| 301 | snapshots_for_gs_version "2"
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| 302 | snapshots_for_gs_version "3"
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| 303 | make_latest |
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