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