198 lines
6.8 KiB
Bash
Executable File
198 lines
6.8 KiB
Bash
Executable File
#!/bin/bash
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#set -vx
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die() {
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echo "$@" >&2
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exit 1
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}
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DIRNAME=NetworkManager-0.9.9.0
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if grep -q '^NAME="Red Hat Enterprise Linux' /etc/os-release ; then
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FEDPKG=rhpkg
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else
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FEDPKG=fedpkg
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fi
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split_patch() {
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# patches created with git-format-patch that contain more then one
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# commit, cannot be easily reverted with patch, because patch works
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# the patches from top down. In case of -R however, we have to apply
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# the latest patches first.
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read -r -d '' PERL_PROG <<-'EOF'
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use strict;
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use warnings;
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open FILE, $ARGV[0] or die "Can't open $ARGV[0] for reading: $!\n";
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local $/ = undef;
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my $file = <FILE>;
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close FILE;
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my @patches = split(/\n\nFrom /,$file);
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my $i = $#patches + 1;
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my $patch;
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my $first = 1;
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foreach $patch (@patches){
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if ($first) {
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$first = 0;
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} else {
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$patch = "From $patch"
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}
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my $o = sprintf("%s%s%03d", $ARGV[0], $ARGV[1], $i);
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open(my $OUT, ">", $o) or die "Can't open $o for writing: $!";
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$i--;
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print $OUT "$patch";
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close $OUT;
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}
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EOF
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perl -e "$PERL_PROG" "$1" "$2"
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}
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unset REVERT_COUNT
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LOCAL=0
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for ARG; do
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case "$ARG" in
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-h|-?|help|--help)
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echo "SYNOPSIS: $(basename "$0") [local|-l] [-?|-h|--help|help] [NUM]"
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echo " - If [NUM] is omitted, it will revert all patches from the spec file,"
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echo " otherwise only the last NUM patches."
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echo " - When specifying 'local', it will also call \`$FEDPKG local\` to configure"
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echo " and build the output directory."
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echo " TIP: symlink your local git clone of NetworkManager to './.git/local'."
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exit 0
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;;
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local|-l)
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LOCAL=1
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;;
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*)
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if [ -n "${REVERT_COUNT+x}" ]; then
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die "invalid argument \"$ARG\""
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fi
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case "$ARG" in
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''|*[!0-9]*) die "invalid argument \"$ARG\": should be an integer (number of patches to revert)";;
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esac
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REVERT_COUNT="$ARG"
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;;
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esac
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done
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srcdir="$(dirname "$(readlink -f "$0")")"
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(test -f $srcdir/NetworkManager.spec \
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&& test -f $srcdir/sources) || {
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echo "**Error**: Directory "\`$srcdir\'" does not look like the NM pkg dir."
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echo "Copy the file \"$(readlink -f "$0")\" to the dist-git base directory"
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exit 1
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}
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# generate the clean dir
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$FEDPKG prep || die "error while \`$FEDPKG prep\`"
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pushd "$DIRNAME"
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git init .
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# if you have a local clone of NetworkManager, symlink
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# it as ../.git/local.
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LOCAL_GIT="$(realpath ../.git/local/)"
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if [[ -d "$LOCAL_GIT/" ]]; then
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git remote add local "$LOCAL_GIT/"
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git fetch local
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git fetch local 'refs/remotes/origin/*:refs/remotes/origin/*'
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fi
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git remote add origin git://anongit.freedesktop.org/NetworkManager/NetworkManager
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git remote 'set-url' --push origin "ssh://$USER@git.freedesktop.org/git/NetworkManager/NetworkManager"
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git commit --allow-empty -m '*** empty initial commit' # useful, to rebase the following commit
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git add -f -A .
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git commit -m '*** add all'
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cat ../makerepo.gitignore > .gitignore
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git rm --cached -r .
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git add .
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git commit -m "*** clean state (ignored files removed)"
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if [[ "$REVERT_COUNT" == "" || $REVERT_COUNT -gt 0 ]]; then
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# parse the list of patches
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IFS=$'\n' read -rd '' -a PATCH_LIST <<<"$(sed -n 's/^Patch\([0-9]\+\): \+\(.*\)$/\1 \2/p' ../NetworkManager.spec | sort -n)"
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# truncate the list of patches to revert/reapply
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if [[ "$REVERT_COUNT" == "" || "$REVERT_COUNT" -gt ${#PATCH_LIST[@]} ]]; then
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echo "revert all ${#PATCH_LIST[@]} patches"
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else
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echo "revert the last $REVERT_COUNT patches of ${#PATCH_LIST[@]}"
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PATCH_LIST=("${PATCH_LIST[@]:$((${#PATCH_LIST[@]} - $REVERT_COUNT))}")
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fi
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# split the list in index and patch file name
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PATCH_LIST_N=()
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for i in ${!PATCH_LIST[@]}; do
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LAST_PATCH_N[$i]=$(echo "${PATCH_LIST[$i]}" | sed -n 's/^\([0-9]\+\) \+.*$/\1/p')
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LAST_PATCH[$i]=$( echo "${PATCH_LIST[$i]}" | sed -n 's/^\([0-9]\+\) \+\(.*\)$/\2/p')
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done
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# revert and patches in reverse order...
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BASECOMMIT=("`git rev-parse HEAD`")
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for j in "${!PATCH_LIST[@]}"; do
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i=$((${#PATCH_LIST[@]} - $j - 1))
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echo "revert Patch${LAST_PATCH_N[$i]} \"${LAST_PATCH[$i]}\"..."
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patch -f --no-backup-if-mismatch -R -p1 < "../${LAST_PATCH[$i]}" || (
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# error applying patch. Maybe we have a multi line patch...
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split_patch "../${LAST_PATCH[$i]}" ".makerepo-split."
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git reset --hard
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git clean -fdx
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for p in "../${LAST_PATCH[$i]}".makerepo-split.*; do
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echo ">>> try split part $p for ${LAST_PATCH[$i]}"
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patch --no-backup-if-mismatch -R -p1 < "$p" || die "error reverting Patch${LAST_PATCH_N[$i]} ${LAST_PATCH[$i]}"
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done
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)
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git add .
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git commit --allow-empty -a -m "<< revert Patch${LAST_PATCH_N[$i]} \"${LAST_PATCH[$i]}\""
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BASECOMMIT=("`git rev-parse HEAD`" "${BASECOMMIT[@]}")
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done
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# reapply the patches
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for i in ${!PATCH_LIST[@]}; do
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echo "reapply Patch${LAST_PATCH_N[$i]} \"${LAST_PATCH[$i]}\"..."
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# create an empty commit, indicating the commit before starting to reapply
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BASECOMMIT_REVERT="${BASECOMMIT[$((i))]}"
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COMMIT_MSG="$(git log -n1 --format='%s' "$BASECOMMIT_REVERT" | sed 's/<< revert \(Patch.*"\)$/-- before reapplying \1/')"
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git commit --allow-empty -m "$COMMIT_MSG"
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# first try git-am to preserve the commit message, otherwise just revert the last commit
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if git am "../${LAST_PATCH[$i]}"; then
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# The tree to the version before should be identical after reapplying the patch.
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# Just to be sure, reset the commit.
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git reset "${BASECOMMIT[$((i+1))]}" -- .
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COMMIT_MSG="$(git log -n1 --format='%s' "$BASECOMMIT_REVERT" | sed 's/<< revert \(Patch.*"\)$/-- after reapplying \1\n\ngit-am did not fully restore the previous state/')"
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git commit -m "$COMMIT_MSG" || echo "NOTHING TO COMMIT"
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else
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git am --abort
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git reset "${BASECOMMIT[$((i+1))]}" -- .
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COMMIT_MSG="$(git log -n1 --format='%s' "$BASECOMMIT_REVERT" | sed 's/<< revert \(Patch.*"\)$/>> reapply \1/')"
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git commit --allow-empty -m "$COMMIT_MSG"
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fi
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git reset --hard HEAD
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done
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fi
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popd
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if [[ $LOCAL != 0 ]]; then
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rm -rf ./.makerepo.git/
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mv "$DIRNAME/.git" ./.makerepo.git/
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$FEDPKG local
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mv ./.makerepo.git/ "$DIRNAME/.git"
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pushd "$DIRNAME"
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git checkout -- .gitignore
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popd
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fi
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