87 lines
2.2 KiB
Bash
Executable File
87 lines
2.2 KiB
Bash
Executable File
#!/bin/bash
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# Packs and unpacks files for Travis CI cache.
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#
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# Copyright (C) 2019 Peter Wu <peter@lekensteyn.nl>
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# SPDX-License-Identifier: GPL-2.0-or-later
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#
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# Travis CI currently has a bug that prevents absolute paths from being cached.
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# See https://github.com/travis-ci/casher/pull/38
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# As a workaround, manually pack directories into an uncompressed tarball
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# (which will be bzip2-compressed by casher). An additional advantage is that
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# casher has to check fewer files to determine whether it is out of date.
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pre_restore() {
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restored_files=()
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echo "Contents of ${cachedir}:"
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ls -la "$cachedir"
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echo
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}
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do_restore() {
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local tarball="$cachedir/$1" path="$2"
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if [ -e "$tarball" ]; then
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echo "Restoring ${path}..."
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time tar -xPf "$tarball" "$path"
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restored_files+=("$1")
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fi
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}
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post_restore() {
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# Remove old cache entries if any.
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mkdir "${cachedir}.new"
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for file in "${restored_files[@]}"; do
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mv "$cachedir/$file" "${cachedir}.new/"
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done
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if oldfiles=$(ls -lA "$cachedir" | grep -v ^total); then
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echo "Removed stale cache entries:"
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echo "$oldfiles"
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echo
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fi
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rm -rf "$cachedir"
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mv "${cachedir}.new" "$cachedir"
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}
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pre_save() { :;}
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do_save() {
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local tarball="$cachedir/$1" path="$2"
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if [ ! -e "$path" ]; then
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echo "Cannot cache $path as it is missing."
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return
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fi
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if [ -e "$tarball" ]; then
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if ! [ "$path" -nt "$tarball" ]; then
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echo "No changes detected in ${path}."
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return
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fi
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echo "Saving new version of ${path}..."
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else
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echo "Saving $path for the first time..."
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fi
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time tar -cPf "$tarball" "$path"
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}
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post_save() {
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echo "New contents of ${cachedir}:"
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ls -la "$cachedir"
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echo
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}
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main() {
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# Cache directories are relative to this path.
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cd "$TRAVIS_BUILD_DIR"
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pwd
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cachedir=travis-cache
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mkdir -p "$cachedir"
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"pre_$1"
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"do_$1" wireshark-libs.tar "$WIRESHARK_BASE_DIR"
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"do_$1" Qt.tar "$QT5_BASE_DIR"
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"post_$1"
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}
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# Merge stderr to stdout to prevent stderr from ending up in future output.
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main "$1" 2>&1
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