scripts/bin: remove unused script update-whatprovides-db
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#!/usr/bin/env bash
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##
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## Script that generates or updates a Whatprovides
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## database for Termux.
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##
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## Copy of https://github.com/termux/whatprovides/blob/83d3c354961ab84c35441e9c7653d1604f1ea72c/update-whatprovides-db.sh
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## but edited for special use in termux-packages.
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##
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set -e -u
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DEBS_DIR_PATH=$(realpath "$(dirname "$0")/../../debs")
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list_files() {
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FILES=$(dpkg-deb --fsys-tarfile "${1}" | tar -t | cut -b2- \
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| xargs -rd\\n realpath -sm --relative-base="/data/data/com.termux/files/usr" -- \
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| grep -vEx '[./]|/data(/data(/com\.termux(/files)?)?)?')
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SORTKEYS='-k1,1'
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MAXKEY=$(awk -F/ 'BEGIN { x=0 } { if (NF > x) x = NF } END { print x }' <<< "${FILES}")
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for ((x=2; x<=$MAXKEY; x++)); do
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SORTKEYS="$SORTKEYS -k$x,$x"
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done
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sort -t/ $SORTKEYS <<< "$FILES" \
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| awk 'NR == 1 { p=$0; next } substr($0, 1, length(p) +1 ) != p"/" { print p } { p=$0 } END { print p }'
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}
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write_sql_script() {
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local debfile_dir=$1
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local debfile_path
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# SQL statements should be executed within a single
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# transaction, otherwise execution performance would
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# be very slow.
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echo "BEGIN TRANSACTION;" >> "$SQLSCRIPT_TMPFILE"
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while read -r debfile_path; do
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# .deb files are named package-name_version-revision_cpuarch.deb
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local package_name
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package_name=$(basename "$debfile_path" | cut -d_ -f1)
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echo "[*] Processing '${debfile_path}'..." >&2
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# Delete content of processed package to ensure there will not be any
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# duplicates and stale entries.
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echo "DELETE FROM whatprovides WHERE package_name == \"${package_name}\";" >> "$SQLSCRIPT_TMPFILE"
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# Add row with matching package-name and file-name.
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while read -r file_path; do
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echo "${package_name}: adding '${file_path}'" >&2
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echo "INSERT INTO whatprovides (package_name, owned_file) VALUES (\"${package_name}\", \"${file_path}\");" >> "$SQLSCRIPT_TMPFILE"
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done < <(list_files "$debfile_path")
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# Note: searching only for ARCH "all" (platform-independent) and "aarch64" which
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# has 100% support by Termux packages.
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done < <(find "$debfile_dir" -type f \( -name "*_all.deb" -o -name "*_aarch64.deb" \) -print)
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echo "COMMIT;" >> "$SQLSCRIPT_TMPFILE"
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# Databases which were not generated from scratch needs
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# to be compacted.
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echo "VACUUM;" >> "$SQLSCRIPT_TMPFILE"
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echo "REINDEX;" >> "$SQLSCRIPT_TMPFILE"
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}
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if [ $# -ge 1 ]; then
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SQLSCRIPT_TMPFILE=$(mktemp -t "whatprovides.XXXXXX.sql")
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if [ ! -d "$DEBS_DIR_PATH" ]; then
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echo "[!] Directory '$DEBS_DIR_PATH' is not found. Perhaps no packages built?" >&2
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exit 1
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fi
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if [ $(find "$DEBS_DIR_PATH" -type f -name "*.deb" | wc -l) -eq 0 ]; then
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echo "[!] Directory '$DEBS_DIR_PATH' does not contain any .deb files." >&2
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exit 1
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fi
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if [ ! -e "${1}" ]; then
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echo "[*] Creating new database." >&2
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sqlite3 "$1" "CREATE TABLE whatprovides ( id INTEGER PRIMARY KEY, package_name TEXT NOT NULL, owned_file TEXT NOT NULL);"
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fi
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echo "[*] Generating SQL script..." >&2
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write_sql_script "$DEBS_DIR_PATH" "$SQLSCRIPT_TMPFILE"
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echo "[*] Rebuilding database..." >&2
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sqlite3 "$1" < "$SQLSCRIPT_TMPFILE"
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rm -f "${SQLSCRIPT_TMPFILE}"
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echo "[*] Done." >&2
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else
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echo
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echo "Usage: update-whatprovides-db.sh [db path]"
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echo
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echo "Regenerate a database for Termux Whatprovides utility."
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echo
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exit 1
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fi
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