git/t/t5515-fetch-merge-logic.sh
Eric Sunshine d0fd993137 t5000-t5999: detect and signal failure within loop
Failures within `for` and `while` loops can go unnoticed if not detected
and signaled manually since the loop itself does not abort when a
contained command fails, nor will a failure necessarily be detected when
the loop finishes since the loop returns the exit code of the last
command it ran on the final iteration, which may not be the command
which failed. Therefore, detect and signal failures manually within
loops using the idiom `|| return 1` (or `|| exit 1` within subshells).

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-12-13 10:29:48 -08:00

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#!/bin/sh
#
# Copyright (c) 2007 Santi Béjar, based on t4013 by Junio C Hamano
#
#
test_description='Merge logic in fetch'
# NEEDSWORK: If the overspecification of the expected result is reduced, we
# might be able to run this test in all protocol versions.
GIT_TEST_PROTOCOL_VERSION=0
export GIT_TEST_PROTOCOL_VERSION
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
. ./test-lib.sh
build_script () {
script="$1" &&
for i in one three_file main topic_2 one_tree three two two2 three2
do
echo "s/$(test_oid --hash=sha1 "$i")/$(test_oid "$i")/g" >>"$script"
done
}
convert_expected () {
file="$1" &&
script="$2" &&
sed -f "$script" "$file" >"$file.tmp" &&
mv "$file.tmp" "$file"
}
test_expect_success setup '
GIT_AUTHOR_DATE="2006-06-26 00:00:00 +0000" &&
GIT_COMMITTER_DATE="2006-06-26 00:00:00 +0000" &&
export GIT_AUTHOR_DATE GIT_COMMITTER_DATE &&
test_oid_cache <<-EOF &&
one sha1:8e32a6d901327a23ef831511badce7bf3bf46689
one sha256:8739546433ab1ac72ee93088dce611210effee072b2b586ceac6dde43ebec9ce
three_file sha1:0e3b14047d3ee365f4f2a1b673db059c3972589c
three_file sha256:bc4447d50c07497a8bfe6eef817f2364ecca9d471452e43b52756cc1a908bd32
main sha1:ecf3b3627b498bdcb735cc4343bf165f76964e9a
main sha256:fff666109892bb4b1c80cd1649d2d8762a0663db8b5d46c8be98360b64fbba5f
one_tree sha1:22feea448b023a2d864ef94b013735af34d238ba
one_tree sha256:6e4743f4ef2356b881dda5e91f5c7cdffe870faf350bf7b312f80a20935f5d83
three sha1:c61a82b60967180544e3c19f819ddbd0c9f89899
three sha256:0cc6d1eda617ded715170786e31ba4e2d0185404ec5a3508dd0d73b324860c6a
two sha1:525b7fb068d59950d185a8779dc957c77eed73ba
two sha256:3b21de3440cd38c2a9e9b464adb923f7054949ed4c918e1a0ac4c95cd52774db
topic_2 sha1:b4ab76b1a01ea602209932134a44f1e6bd610832
topic_2 sha256:380ebae0113f877ce46fcdf39d5bc33e4dc0928db5c5a4d5fdc78381c4d55ae3
two2 sha1:6134ee8f857693b96ff1cc98d3e2fd62b199e5a8
two2 sha256:87a2d3ee29c83a3dc7afd41c0606b11f67603120b910a7be7840accdc18344d4
three2 sha1:0567da4d5edd2ff4bb292a465ba9e64dcad9536b
three2 sha256:cceb3e8eca364fa9a0a39a1efbebecacc664af86cbbd8070571f5faeb5f0e8c3
EOF
echo >file original &&
git add file &&
git commit -a -m One &&
git tag tag-one &&
git tag tag-one-tree HEAD^{tree} &&
git branch one &&
echo two >> file &&
git commit -a -m Two &&
git tag -a -m "Tag Two" tag-two &&
git branch two &&
echo three >> file &&
git commit -a -m Three &&
git tag -a -m "Tag Three" tag-three &&
git tag -a -m "Tag Three file" tag-three-file HEAD^{tree}:file &&
git branch three &&
echo main >> file &&
git commit -a -m Main &&
git tag -a -m "Tag Main" tag-main &&
git checkout three &&
git clone . cloned &&
cd cloned &&
git config remote.origin.url ../.git/ &&
git config remote.config-explicit.url ../.git/ &&
git config remote.config-explicit.fetch refs/heads/main:remotes/rem/main &&
git config --add remote.config-explicit.fetch refs/heads/one:remotes/rem/one &&
git config --add remote.config-explicit.fetch two:remotes/rem/two &&
git config --add remote.config-explicit.fetch refs/heads/three:remotes/rem/three &&
remotes="config-explicit" &&
git config remote.config-glob.url ../.git/ &&
git config remote.config-glob.fetch refs/heads/*:refs/remotes/rem/* &&
remotes="$remotes config-glob" &&
mkdir -p .git/remotes &&
cat >.git/remotes/remote-explicit <<-\EOF &&
URL: ../.git/
Pull: refs/heads/main:remotes/rem/main
Pull: refs/heads/one:remotes/rem/one
Pull: two:remotes/rem/two
Pull: refs/heads/three:remotes/rem/three
EOF
remotes="$remotes remote-explicit" &&
cat >.git/remotes/remote-glob <<-\EOF &&
URL: ../.git/
Pull: refs/heads/*:refs/remotes/rem/*
EOF
remotes="$remotes remote-glob" &&
mkdir -p .git/branches &&
echo "../.git" > .git/branches/branches-default &&
remotes="$remotes branches-default" &&
echo "../.git#one" > .git/branches/branches-one &&
remotes="$remotes branches-one" &&
for remote in $remotes ; do
git config branch.br-$remote.remote $remote &&
git config branch.br-$remote-merge.remote $remote &&
git config branch.br-$remote-merge.merge refs/heads/three &&
git config branch.br-$remote-octopus.remote $remote &&
git config branch.br-$remote-octopus.merge refs/heads/one &&
git config --add branch.br-$remote-octopus.merge two || return 1
done &&
build_script sed_script
'
# Merge logic depends on branch properties and Pull: or .fetch lines
for remote in $remotes ; do
for branch in "" "-merge" "-octopus" ; do
cat <<EOF
br-$remote$branch
br-$remote$branch $remote
EOF
done
done > tests
# Merge logic does not depend on branch properties,
# but does depend on Pull: or fetch lines.
# Use two branches completely unrelated from the arguments,
# the clone default and one without branch properties
for branch in main br-unconfig ; do
echo $branch
for remote in $remotes ; do
echo $branch $remote
done
done >> tests
# Merge logic does not depend on branch properties
# neither in the Pull: or .fetch config
for branch in main br-unconfig ; do
cat <<EOF
$branch ../.git
$branch ../.git one
$branch ../.git one two
$branch --tags ../.git
$branch ../.git tag tag-one tag tag-three
$branch ../.git tag tag-one-tree tag tag-three-file
$branch ../.git one tag tag-one tag tag-three-file
EOF
done >> tests
while read cmd
do
case "$cmd" in
'' | '#'*) continue ;;
esac
test=$(echo "$cmd" | sed -e 's|[/ ][/ ]*|_|g')
pfx=$(printf "%04d" $test_count)
expect_f="$TEST_DIRECTORY/t5515/fetch.$test"
actual_f="$pfx-fetch.$test"
expect_r="$TEST_DIRECTORY/t5515/refs.$test"
actual_r="$pfx-refs.$test"
test_expect_success "$cmd" '
cp "$expect_f" expect_f &&
convert_expected expect_f sed_script &&
cp "$expect_r" expect_r &&
convert_expected expect_r sed_script &&
{
echo "# $cmd" &&
set x $cmd && shift &&
git symbolic-ref HEAD refs/heads/$1 && shift &&
rm -f .git/FETCH_HEAD &&
git for-each-ref \
refs/heads refs/remotes/rem refs/tags |
while read val type refname
do
git update-ref -d "$refname" "$val" || return 1
done &&
git fetch "$@" >/dev/null &&
cat .git/FETCH_HEAD
} >"$actual_f" &&
git show-ref >"$actual_r" &&
if test -f "expect_f"
then
test_cmp "expect_f" "$actual_f" &&
rm -f "$actual_f"
else
# this is to help developing new tests.
cp "$actual_f" "$expect_f"
false
fi &&
if test -f "expect_r"
then
test_cmp "expect_r" "$actual_r" &&
rm -f "$actual_r"
else
# this is to help developing new tests.
cp "$actual_r" "$expect_r"
false
fi
'
done < tests
test_done