update-gcc.sh

#!/bin/bash
# Update Patchwork patch list from commits in the upstream repo.
# Intended for use with glibc and gcc.
#
# [pw]                                                             
#        server = https://patchwork.sourceware.org/api/1.2/
#        project = gcc
#        token = <API token>
#        states = committed,accepted,superseded,deferred,rejected
#

# Set this to your patchwork repo path
PWROOT=$HOME/src/patchwork
# And this to the clone of the project
PROJROOT=$HOME/src/gcc/gcc

# A local Git tag to track the last commit you processed with this script.
PWLAST_TAG=patchwork-last

STATES="--state accepted --state new --state under-review"
STATES="$STATES --state changes-requested"
STATES="$STATES --state committed"

# Print the Git diff for a commit, filtering out generated files,
# then use patchwork's hasher to create the hash to identify it in pw.
diff_hash()
{
        git show --pretty=format: $1 |
                filterdiff -x '*/ChangeLog' -x '*/Makefile.in' -x '*/configure' -x '*/config.h.in' -x '*/doc/html/*' |
                python "$PWROOT"/patchwork/hasher.py
}

cd "$PROJROOT" || exit

if [ $# -ne 0 ]; then
        # If $1 is a positive integer, process the last $1 commits.
        if  [ "$1" -gt 0 ]; then
                START=origin/master~$1
        else
                echo "$0: Invalid argument: $1" >&2
                exit 1
        fi
else
        # Otherwise, resume from the $PWLAST_TAG tag, if set.
        START=$(git tag -l "$PWLAST_TAG")
        if [ -z "$START" ]; then
                # Otherwise, process the last 100 commits.
                START=origin/master~100
        fi
fi

git fetch origin
git log --reverse --pretty=format:%H%n "$START"..origin/master |
        while read gh; do
                [ -z "$gh" ] && continue
                h=$(diff_hash $gh)
                pwid=$(git-pw patch list --hash $h $STATES -f simple --column ID | grep -v -e ID -e "\--")

                if [ -n "$pwid" ]; then
                        echo "$(git log --pretty=oneline -1 $gh): OK"
                        git-pw patch update --commit-ref $gh --state committed $pwid
                else
                        echo "$(git log --pretty=oneline -1 $gh): MISSING"
                fi
                # If $gh is not an ancestor of $PWLAST_TAG, update the tag.
                if ! git tag --list "$PWLAST_TAG" --contains $gh | grep --silent .
                then
                        git tag --force "$PWLAST_TAG" "$gh" >/dev/null
                fi
        done