You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
94 lines
2.4 KiB
94 lines
2.4 KiB
#!/bin/sh |
|
# Copyright (c) 2015 The Bitcoin Core developers |
|
# Distributed under the MIT software license, see the accompanying |
|
# file COPYING or http://www.opensource.org/licenses/mit-license.php. |
|
|
|
DIR="$1" |
|
COMMIT="$2" |
|
if [ -z "$COMMIT" ]; then |
|
COMMIT=HEAD |
|
fi |
|
|
|
# Taken from git-subtree (Copyright (C) 2009 Avery Pennarun <apenwarr@gmail.com>) |
|
find_latest_squash() |
|
{ |
|
dir="$1" |
|
sq= |
|
main= |
|
sub= |
|
git log --grep="^git-subtree-dir: $dir/*\$" \ |
|
--pretty=format:'START %H%n%s%n%n%b%nEND%n' "$COMMIT" | |
|
while read a b _; do |
|
case "$a" in |
|
START) sq="$b" ;; |
|
git-subtree-mainline:) main="$b" ;; |
|
git-subtree-split:) sub="$b" ;; |
|
END) |
|
if [ -n "$sub" ]; then |
|
if [ -n "$main" ]; then |
|
# a rejoin commit? |
|
# Pretend its sub was a squash. |
|
sq="$sub" |
|
fi |
|
echo "$sq" "$sub" |
|
break |
|
fi |
|
sq= |
|
main= |
|
sub= |
|
;; |
|
esac |
|
done |
|
} |
|
|
|
# find latest subtree update |
|
latest_squash="$(find_latest_squash "$DIR")" |
|
if [ -z "$latest_squash" ]; then |
|
echo "ERROR: $DIR is not a subtree" >&2 |
|
exit 2 |
|
fi |
|
set $latest_squash |
|
old=$1 |
|
rev=$2 |
|
|
|
# get the tree in the current commit |
|
tree_actual=$(git ls-tree -d "$COMMIT" "$DIR" | head -n 1) |
|
if [ -z "$tree_actual" ]; then |
|
echo "FAIL: subtree directory $DIR not found in $COMMIT" >&2 |
|
exit 1 |
|
fi |
|
set $tree_actual |
|
tree_actual_type=$2 |
|
tree_actual_tree=$3 |
|
echo "$DIR in $COMMIT currently refers to $tree_actual_type $tree_actual_tree" |
|
if [ "d$tree_actual_type" != "dtree" ]; then |
|
echo "FAIL: subtree directory $DIR is not a tree in $COMMIT" >&2 |
|
exit 1 |
|
fi |
|
|
|
# get the tree at the time of the last subtree update |
|
tree_commit=$(git show -s --format="%T" $old) |
|
echo "$DIR in $COMMIT was last updated in commit $old (tree $tree_commit)" |
|
|
|
# ... and compare the actual tree with it |
|
if [ "$tree_actual_tree" != "$tree_commit" ]; then |
|
git diff $tree_commit $tree_actual_tree >&2 |
|
echo "FAIL: subtree directory was touched without subtree merge" >&2 |
|
exit 1 |
|
fi |
|
|
|
# get the tree in the subtree commit referred to |
|
if [ "d$(git cat-file -t $rev 2>/dev/null)" != dcommit ]; then |
|
echo "subtree commit $rev unavailable: cannot compare" >&2 |
|
exit |
|
fi |
|
tree_subtree=$(git show -s --format="%T" $rev) |
|
echo "$DIR in $COMMIT was last updated to upstream commit $rev (tree $tree_subtree)" |
|
|
|
# ... and compare the actual tree with it |
|
if [ "$tree_actual_tree" != "$tree_subtree" ]; then |
|
echo "FAIL: subtree update commit differs from upstream tree!" >&2 |
|
exit 1 |
|
fi |
|
|
|
echo "GOOD"
|
|
|