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bazel-lib/lib/private/diff_test_tmpl.sh
2023-12-08 00:30:39 -08:00

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#!/usr/bin/env bash
set -o errexit -o nounset -o pipefail
escape() {
echo "$1" |
sed 's/&/\&amp;/g; s/</\&lt;/g; s/>/\&gt;/g; s/"/\&quot;/g; s/'"'"'/\&#39;/g' |
awk 1 ORS='&#10;' # preserve newlines
}
fail() {
cat <<EOF >"${XML_OUTPUT_FILE:-/dev/null}"
<?xml version="1.0" encoding="UTF-8"?>
<testsuites name="$(escape "{name}")" tests="1" failures="1">
<testsuite name="$(escape "{name}")" tests="1" failures="1" id="0">
<testcase name="$(escape "{name}")" assertions="1" status="failed">
<failure message="$(escape "$1")" type="diff"></failure>
</testcase>
</testsuite>
</testsuites>
EOF
echo >&2 "FAIL: $1"
exit 1
}
resolve_exec_root() {
local RUNFILES_PARENT
RUNFILES_PARENT=$(dirname "$RUNFILES_DIR")
local BIN_DIR
BIN_DIR="${RUNFILES_PARENT%$BUILD_FILE_DIR}"
local EXEC_ROOT
EXEC_ROOT=$(dirname $(dirname $(dirname "${BIN_DIR}")))
echo -n "$EXEC_ROOT"
}
find_file() {
local F_RAW="$1"
local F="$2"
local RF=
if [[ -f "$TEST_SRCDIR/$F1" || -d "$TEST_SRCDIR/$F" ]]; then
RF="$TEST_SRCDIR/$F"
elif [[ -d "${RUNFILES_DIR:-/dev/null}" && "${RUNFILES_MANIFEST_ONLY:-}" != 1 ]]; then
EXEC_ROOT=$(resolve_exec_root)
if [[ -e "$EXEC_ROOT/$F_RAW" ]]; then
RF="$EXEC_ROOT/$F_RAW"
else
RF="$RUNFILES_DIR/$F1"
fi
elif [[ -f "${RUNFILES_MANIFEST_FILE:-/dev/null}" ]]; then
RF="$(grep -F -m1 "$F " "$RUNFILES_MANIFEST_FILE" | sed 's/^[^ ]* //')"
else
echo >&2 "ERROR: could not find \"${F_RAW}\""
exit 1
fi
echo -n "$RF"
}
BUILD_FILE_DIR="$(dirname "{build_file_path}")"
F1="{file1}"
F2="{file2}"
[[ "$F1" =~ ^external/ ]] && F1="${F1#external/}" || F1="$TEST_WORKSPACE/$F1"
[[ "$F2" =~ ^external/ ]] && F2="${F2#external/}" || F2="$TEST_WORKSPACE/$F2"
RF1="$(find_file {file1} "$F1")"
RF2="$(find_file {file2} "$F2")"
DF1=
DF2=
[[ ! -d "$RF1" ]] || DF1=1
[[ ! -d "$RF2" ]] || DF2=1
if [[ "$DF1" ]] && [[ ! "$DF2" ]]; then
echo >&2 "ERROR: cannot compare a directory \"{file1}\" against a file \"{file2}\""
exit 1
fi
if [[ ! "$DF1" ]] && [[ "$DF2" ]]; then
echo >&2 "ERROR: cannot compare a file \"{file1}\" against a directory \"{file2}\""
exit 1
fi
if [[ "$DF1" ]] || [[ "$DF2" ]]; then
if ! diff -r "$RF1" "$RF2"; then
fail "directories \"{file1}\" and \"{file2}\" differ. {fail_msg}"
fi
else
if ! diff "$RF1" "$RF2"; then
fail "files \"{file1}\" and \"{file2}\" differ. {fail_msg}"
fi
fi