first commit with content
Signed-off-by: Tomasz Kapias <tkapias@git.tkapias.net>
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							|  | @ -0,0 +1,191 @@ | |||
| #!/usr/bin/env bash | ||||
| 
 | ||||
| shopt -s extglob | ||||
| 
 | ||||
| export LC_ALL="C.UTF-8" | ||||
| export TZ=:/etc/localtime | ||||
| 
 | ||||
| Help() | ||||
| { | ||||
|   echo "Generate an OPML 2.0 file to follow releases of starred repositories on Github" | ||||
|   echo "Default to all starred repos of the user, or a specific list with [-l list]." | ||||
|   echo | ||||
|   echo "Syntax: ./gh-starred-to-opml.sh [-h] -u user [-l listname] [-d date] [-o filename] [-n filename]" | ||||
|   echo "options:" | ||||
|   echo "-h              Print this Help" | ||||
|   echo "-u string       required: Github username" | ||||
|   echo "-l string       optional: Github Stars List (url shortname)" | ||||
|   echo "-d string       optional: ISO8601 date to filter out starred before (YYYY-mm-ddTHH:MM:SSZ)" | ||||
|   echo "-o string.opml  optional: destination opml filename" | ||||
|   echo "-n string.opml  Use a previous file to generate updates," | ||||
|   echo "                it does not require any other option," | ||||
|   echo "                but it uses starred_at dates, not starred in a list." | ||||
|   echo | ||||
| } | ||||
| 
 | ||||
| unset -v _USERNAME _LISTNAME _DATEFILTER _FILENAME _OLDFILENAME _DATA | ||||
| 
 | ||||
| while getopts "hu:l:d:o:n:" option; do | ||||
|   case $option in | ||||
|      h) Help; exit;; | ||||
|      u) _USERNAME="$OPTARG";; | ||||
|      l) _LISTNAME="$OPTARG";; | ||||
|      d) _DATEFILTER="$OPTARG";; | ||||
|      o) _FILENAME="$OPTARG";; | ||||
|      n) _OLDFILENAME="$OPTARG" | ||||
|         unset -v _USERNAME _LISTNAME _DATEFILTER _FILENAME _DATA;; | ||||
|     \?) echo -e "Unknown option: -$OPTARG \n" >&2; Help; exit 1;; | ||||
|     : ) echo -e "Missing argument for -$OPTARG \n" >&2; Help; exit 1;; | ||||
|     * ) echo -e "Unimplemented option: -$option \n" >&2; Help; exit 1;; | ||||
|   esac | ||||
| done | ||||
| 
 | ||||
| if [[ -n $_OLDFILENAME ]]; then | ||||
|   # parsing the source OPML file to generate values for the update | ||||
|   if [[ ! -f "${_OLDFILENAME}" ]]; then | ||||
|     echo 'Missing source file "${_OLDFILENAME}"' >&2 | ||||
|     echo | ||||
|     Help | ||||
|     exit 1 | ||||
|   fi | ||||
|   _FILENAME=${_OLDFILENAME/%*(_+([0-9]).opml)*(.opml)/_$(date '+%y%m%d%H%M').opml} | ||||
|   _USERNAME=$(grep "ownerName" "${_OLDFILENAME}" | sed -nr 's,.+Name>(.+)<\/ownerName.+,\1,p') | ||||
|   _LISTNAME=$(grep "outline" "${_OLDFILENAME}" | sed -nr 's,.+Github - (.+) - .+,\1,p') | ||||
|   _DATEFILTER=$(LC_ALL="C.UTF-8"  date -u -d "$(grep "dateModified" "${_OLDFILENAME}" | sed -nr 's,.+dateModified>(.+)<\/dateModified.+,\1,p')" '+%Y-%m-%dT%H:%M:%S%Z') | ||||
| fi | ||||
| 
 | ||||
| if [[ -z $_USERNAME ]]; then | ||||
|   echo 'Missing Github username' >&2 | ||||
|   echo | ||||
|   Help | ||||
|   exit 1 | ||||
| fi | ||||
| 
 | ||||
| if [[ -z $_FILENAME ]]; then | ||||
|   if [[ -z $_LISTNAME ]]; then | ||||
|     _FILENAME="gh_starred_${_USERNAME}.opml" | ||||
|   else | ||||
|     _FILENAME="gh_starred_${_USERNAME}_${_LISTNAME}.opml" | ||||
|   fi | ||||
| fi | ||||
| 
 | ||||
| 
 | ||||
| _CMD_ARRAY=( curl jq pup ) | ||||
| for cmd in "${_CMD_ARRAY[@]}"; do | ||||
|   if [[ -z $(command -v $cmd) ]]; then | ||||
|     echo 'Requirements: $cmd could not be found' >&2 | ||||
|     echo '  - sudo apt install curl jq' >&2 | ||||
|     echo '  - go install github.com/ericchiang/pup@latest' >&2 | ||||
|     exit 1 | ||||
|   fi | ||||
| done | ||||
| 
 | ||||
| # parsing Github API for all user's starred repositories | ||||
| _PAGE=1 | ||||
| 
 | ||||
| echo "- Parsing Github API for ${_USERNAME}: page $_PAGE" | ||||
| _DATA=$(curl -H "Accept: application/vnd.github.v3.star+json" -sSL "api.github.com/users/${_USERNAME}/starred?page=${_PAGE}&per_page=100" | jq '.[] | {id: .repo.id, name: .repo.full_name, desc: .repo.description, date: .starred_at}') | ||||
| _PAGE=$((_PAGE+1)) | ||||
| 
 | ||||
| while [ $_PAGE -ge 2 ]; do | ||||
|   unset _NEW_DATA | ||||
|   echo "- Parsing Github API for ${_USERNAME}: page $_PAGE" | ||||
|   _NEW_DATA=$(curl -H "Accept: application/vnd.github.v3.star+json" -sSL "api.github.com/users/${_USERNAME}/starred?page=${_PAGE}&per_page=100" | jq '.[] | {id: .repo.id, name: .repo.full_name, desc: .repo.description, date: .starred_at}') | ||||
|   if [ "$_NEW_DATA" ]; then | ||||
|     _DATA=$(echo -e "${_DATA}\n${_NEW_DATA}") | ||||
|     _PAGE=$((_PAGE+1)) | ||||
|   else | ||||
|     echo "- Page ${_PAGE} was the last one" | ||||
|     _PAGE=1 | ||||
|   fi | ||||
| done | ||||
| 
 | ||||
| echo "- Sorting results by name" | ||||
| _DATA=$(echo "${_DATA}" | jq -s -c 'sort_by(.name) | .[]') | ||||
| 
 | ||||
| if [[ -n $_DATEFILTER ]]; then | ||||
|   echo "- Filtering out repositories starred before ${_DATEFILTER}" | ||||
|   _DATA=$(echo "${_DATA}" | jq -c --arg date "${_DATEFILTER}" 'select( .date > $date )') | ||||
| fi | ||||
| 
 | ||||
| # parsing Github list pages (not available in the API) | ||||
| if [[ -n $_LISTNAME ]]; then | ||||
|   _PAGE=1 | ||||
|    | ||||
|   echo "- Parsing Github \"${_LISTNAME}\" List for ${_USERNAME}: page $_PAGE" | ||||
|   _LIST=$(curl -sS "https://github.com/stars/${_USERNAME}/lists/${_LISTNAME}?page=1") | ||||
|   _NEXT=$(echo "${_LIST}" | pup '#user-list-repositories div div a[class="next_page"] text{}') | ||||
|   _LIST=$(echo "${_LIST}" | pup '#user-list-repositories div div h3 a attr{href}') | ||||
|   if [[ -n $_NEXT ]]; then | ||||
|     _PAGE=$((_PAGE+1)) | ||||
|   fi | ||||
|    | ||||
|   while [ $_PAGE -ge 2 ]; do | ||||
|     unset _NEW_LIST _NEXT | ||||
|     echo "- Parsing Github \"${_LISTNAME}\" List for ${_USERNAME}: page $_PAGE" | ||||
|     _NEW_LIST=$(curl -sS "https://github.com/stars/${_USERNAME}/lists/${_LISTNAME}?page=${_PAGE}") | ||||
|     _NEXT=$(echo "${_NEW_LIST}" | pup '#user-list-repositories div div a[class="next_page"] text{}') | ||||
|     _NEW_LIST=$(echo "${_NEW_LIST}" | pup '#user-list-repositories div div h3 a attr{href}') | ||||
|     _LIST=$(echo -e "${_LIST}\n${_NEW_LIST}") | ||||
|     if [[ -n $_NEXT ]]; then | ||||
|       _PAGE=$((_PAGE+1)) | ||||
|     else | ||||
|       echo "- Page ${_PAGE} was the last one" | ||||
|       _PAGE=1 | ||||
|     fi | ||||
|   done | ||||
|    | ||||
|   _LIST=$(echo "${_LIST}" | sed -r 's,^\/,,g') | ||||
| fi | ||||
| 
 | ||||
| # filtering down repositories by the List | ||||
| if [[ -n $_LIST ]]; then | ||||
|   echo "- Filtering all starred repositories by the ones in the list." | ||||
|   _DATA=$(echo "${_DATA}" | jq --argjson names "$(echo "${_LIST}" | jq -R . | jq -s .)" 'select( .name as $name | $names | index($name) )') | ||||
| fi | ||||
| 
 | ||||
| if [[ "$(echo "${_DATA}" | jq '.name' | wc -l)" == "0" ]]; then | ||||
|   echo 'No entries found. Aborting.' >&2 | ||||
|   echo | ||||
|   exit 1 | ||||
| fi | ||||
| 
 | ||||
| # opml file generation | ||||
| echo "- Generating OPML file Header" | ||||
| _FIRSTDATE=$(LC_ALL="C.UTF-8" TZ=GMT date -d $(echo "${_DATA}" | jq -sr 'sort_by(.date) | reverse[-1].date') '+%a, %d %b %Y %H:%M:%S %Z') | ||||
| _LASTDATE=$(LC_ALL="C.UTF-8" TZ=GMT date -d $(echo "${_DATA}" | jq -sr 'sort_by(.date)[-1].date') '+%a, %d %b %Y %H:%M:%S %Z') | ||||
| if [[ -z $_LISTNAME ]]; then | ||||
|   _CATEGORY="Github - ${_USERNAME}" | ||||
| else | ||||
|   _CATEGORY="Github - ${_LISTNAME} - ${_USERNAME}" | ||||
| fi | ||||
| cat <<- EOF > "${_FILENAME}" | ||||
| 	<?xml version="1.0" encoding="UTF-8"?> | ||||
| 	    <opml version="2.0"> | ||||
| 	        <head> | ||||
| 	            <title>${_FILENAME}</title> | ||||
| 	            <dateCreated>${_FIRSTDATE}</dateCreated> | ||||
| 	            <dateModified>${_LASTDATE}</dateModified> | ||||
| 	            <ownerName>${_USERNAME}</ownerName> | ||||
| 	        </head> | ||||
| 	        <body> | ||||
| 	            <outline text="${_CATEGORY}"> | ||||
| EOF | ||||
| 
 | ||||
| echo "- Generating OPML file Feeds" | ||||
| for id in $(echo "$_DATA" | jq .id); do | ||||
|   _REPO_NAME=$(echo "$_DATA" | jq -r --argjson v "$id" ' . | select(.id==$v).name') | ||||
|   _REPO_DESC=$(echo "$_DATA" | jq -r --argjson v "$id" ' . | select(.id==$v).desc' | sed -e 's~\&~\&~g' -e 's~<~\<~g' -e 's~>~\>~g' -e 's~\"~\"~g' -e "s~'~\'~g") | ||||
|   cat <<- EOF >> "${_FILENAME}" | ||||
| 	                <outline title="${_REPO_NAME}" text="${_REPO_NAME}" type="rss" version="ATOM1" description="${_REPO_DESC}" xmlUrl="https://github.com/${_REPO_NAME}/releases.atom" htmlUrl="https://github.com/${_REPO_NAME}"></outline> | ||||
| EOF | ||||
| done | ||||
| 
 | ||||
| echo "- Generating OPML file Footer" | ||||
| cat <<- EOF >> "${_FILENAME}" | ||||
| 	            </outline> | ||||
| 	        </body> | ||||
| 	    </opml> | ||||
| EOF | ||||
| 
 | ||||
| echo "- Done: Generated $(echo "${_DATA}" | jq '.name' | wc -l) entries for \"${_CATEGORY}\" in ${_FILENAME}" | ||||
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