From: Johannes Schindelin <johannes.schindelin@xxxxxx>
It is more performant to run `git diff --no-index` than running the
`mingw_test_cmp` code with MSYS2's Bash, i.e. the Bash that Git for
Windows uses. And a lot more readable.
Note: Earlier attempts at fixing this involved a test helper that avoids
the overhead of the diff machinery, in favor of implementing a behavior
that is more in line with what `mingw_test_cmp` does now, but that
attempt saw a lot of backlash and distractions during review and was
therefore abandoned.
Signed-off-by: Johannes Schindelin <johannes.schindelin@xxxxxx>
---
t/test-lib-functions.sh | 66 -----------------------------------------
t/test-lib.sh | 2 +-
2 files changed, 1 insertion(+), 67 deletions(-)
diff --git a/t/test-lib-functions.sh b/t/test-lib-functions.sh
index 8c44856eaec..452fe9bc8aa 100644
--- a/t/test-lib-functions.sh
+++ b/t/test-lib-functions.sh
@@ -1541,72 +1541,6 @@ test_skip_or_die () {
error "$2"
}
-# The following mingw_* functions obey POSIX shell syntax, but are actually
-# bash scripts, and are meant to be used only with bash on Windows.
-
-# A test_cmp function that treats LF and CRLF equal and avoids to fork
-# diff when possible.
-mingw_test_cmp () {
- # Read text into shell variables and compare them. If the results
- # are different, use regular diff to report the difference.
- local test_cmp_a= test_cmp_b=
-
- # When text came from stdin (one argument is '-') we must feed it
- # to diff.
- local stdin_for_diff=
-
- # Since it is difficult to detect the difference between an
- # empty input file and a failure to read the files, we go straight
- # to diff if one of the inputs is empty.
- if test -s "$1" && test -s "$2"
- then
- # regular case: both files non-empty
- mingw_read_file_strip_cr_ test_cmp_a <"$1"
- mingw_read_file_strip_cr_ test_cmp_b <"$2"
- elif test -s "$1" && test "$2" = -
- then
- # read 2nd file from stdin
- mingw_read_file_strip_cr_ test_cmp_a <"$1"
- mingw_read_file_strip_cr_ test_cmp_b
- stdin_for_diff='<<<"$test_cmp_b"'
- elif test "$1" = - && test -s "$2"
- then
- # read 1st file from stdin
- mingw_read_file_strip_cr_ test_cmp_a
- mingw_read_file_strip_cr_ test_cmp_b <"$2"
- stdin_for_diff='<<<"$test_cmp_a"'
- fi
- test -n "$test_cmp_a" &&
- test -n "$test_cmp_b" &&
- test "$test_cmp_a" = "$test_cmp_b" ||
- eval "diff -u \"\$@\" $stdin_for_diff"
-}
-
-# $1 is the name of the shell variable to fill in
-mingw_read_file_strip_cr_ () {
- # Read line-wise using LF as the line separator
- # and use IFS to strip CR.
- local line
- while :
- do
- if IFS=$'\r' read -r -d $'\n' line
- then
- # good
- line=$line$'\n'
- else
- # we get here at EOF, but also if the last line
- # was not terminated by LF; in the latter case,
- # some text was read
- if test -z "$line"
- then
- # EOF, really
- break
- fi
- fi
- eval "$1=\$$1\$line"
- done
-}
-
# Like "env FOO=BAR some-program", but run inside a subshell, which means
# it also works for shell functions (though those functions cannot impact
# the environment outside of the test_env invocation).
diff --git a/t/test-lib.sh b/t/test-lib.sh
index 7726d1da88a..f8c6205e08f 100644
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -1546,7 +1546,7 @@ case $uname_s in
test_set_prereq SED_STRIPS_CR
test_set_prereq GREP_STRIPS_CR
test_set_prereq WINDOWS
- GIT_TEST_CMP=mingw_test_cmp
+ GIT_TEST_CMP="GIT_DIR=/dev/null git diff --no-index --ignore-cr-at-eol --"
;;
*CYGWIN*)
test_set_prereq POSIXPERM
--
gitgitgadget
