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9fd9e4cf5a
34c80d9eee7d21755f2bb80f7c97fd30d2c7b656 test: Add option to git-subtree-check to do full check, add help (Wladimir J. van der Laan)
Pull request description:
This adds a brief help text to `git-subtree-check.sh` and adds an option to do a full remote check instead of having two different code paths with a successful exit status. Also make it explicit that the CI is not doing this.
ACKs for top commit:
fjahr:
tested ACK 34c80d9eee7d21755f2bb80f7c97fd30d2c7b656
Tree-SHA512: 20f672fd3b3c1d633eccf9998fdd738194cdd7d10cc206691f2dcc28bbbf8187b8d06b87814f875a06145b179f5ca1f4f4f9922972be72759cf5ac6e0c11abd1
132 lines
3.6 KiB
Bash
Executable File
132 lines
3.6 KiB
Bash
Executable File
#!/bin/sh
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# Copyright (c) 2015-2019 The Bitcoin Core developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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export LC_ALL=C
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check_remote=0
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while getopts "?hr" opt; do
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case $opt in
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'?' | h)
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echo "Usage: $0 [-r] DIR [COMMIT]"
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echo " $0 -?"
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echo ""
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echo "Checks that a certain prefix is pure subtree, and optionally whether the"
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echo "referenced commit is present in any fetched remote."
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echo ""
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echo "DIR is the prefix within the repository to check."
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echo "COMMIT is the commit to check, if it is not provided, HEAD will be used."
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echo ""
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echo "-r Check that subtree commit is present in repository."
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echo " To do this check, fetch the subtreed remote first. Example:"
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echo ""
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echo " git fetch https://github.com/bitcoin-core/secp256k1.git"
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echo " test/lint/git-subtree-check.sh -r src/secp256k1"
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exit 1
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;;
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r)
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check_remote=1
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;;
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esac
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done
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shift $((OPTIND-1))
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if [ -z "$1" ]; then
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echo "Need to provide a DIR, see $0 -?"
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exit 1
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fi
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# Strip trailing / from directory path (in case it was added by autocomplete)
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DIR="${1%/}"
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COMMIT="$2"
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if [ -z "$COMMIT" ]; then
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COMMIT=HEAD
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fi
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# Taken from git-subtree (Copyright (C) 2009 Avery Pennarun <apenwarr@gmail.com>)
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find_latest_squash()
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{
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dir="$1"
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sq=
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main=
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sub=
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git log --grep="^git-subtree-dir: $dir/*\$" \
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--pretty=format:'START %H%n%s%n%n%b%nEND%n' "$COMMIT" |
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while read a b _; do
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case "$a" in
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START) sq="$b" ;;
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git-subtree-mainline:) main="$b" ;;
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git-subtree-split:) sub="$b" ;;
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END)
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if [ -n "$sub" ]; then
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if [ -n "$main" ]; then
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# a rejoin commit?
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# Pretend its sub was a squash.
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sq="$sub"
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fi
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echo "$sq" "$sub"
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break
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fi
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sq=
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main=
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sub=
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;;
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esac
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done
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}
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# find latest subtree update
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latest_squash="$(find_latest_squash "$DIR")"
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if [ -z "$latest_squash" ]; then
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echo "ERROR: $DIR is not a subtree" >&2
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exit 2
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fi
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set $latest_squash
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old=$1
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rev=$2
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# get the tree in the current commit
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tree_actual=$(git ls-tree -d "$COMMIT" "$DIR" | head -n 1)
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if [ -z "$tree_actual" ]; then
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echo "FAIL: subtree directory $DIR not found in $COMMIT" >&2
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exit 1
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fi
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set $tree_actual
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tree_actual_type=$2
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tree_actual_tree=$3
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echo "$DIR in $COMMIT currently refers to $tree_actual_type $tree_actual_tree"
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if [ "d$tree_actual_type" != "dtree" ]; then
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echo "FAIL: subtree directory $DIR is not a tree in $COMMIT" >&2
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exit 1
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fi
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# get the tree at the time of the last subtree update
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tree_commit=$(git show -s --format="%T" $old)
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echo "$DIR in $COMMIT was last updated in commit $old (tree $tree_commit)"
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# ... and compare the actual tree with it
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if [ "$tree_actual_tree" != "$tree_commit" ]; then
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git diff $tree_commit $tree_actual_tree >&2
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echo "FAIL: subtree directory was touched without subtree merge" >&2
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exit 1
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fi
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if [ "$check_remote" != "0" ]; then
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# get the tree in the subtree commit referred to
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if [ "d$(git cat-file -t $rev 2>/dev/null)" != dcommit ]; then
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echo "subtree commit $rev unavailable: cannot compare. Did you add and fetch the remote?" >&2
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exit 1
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fi
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tree_subtree=$(git show -s --format="%T" $rev)
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echo "$DIR in $COMMIT was last updated to upstream commit $rev (tree $tree_subtree)"
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# ... and compare the actual tree with it
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if [ "$tree_actual_tree" != "$tree_subtree" ]; then
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echo "FAIL: subtree update commit differs from upstream tree!" >&2
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exit 1
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fi
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fi
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echo "GOOD"
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