view hgeditor @ 51985:2924676d4728

tests: force `seq` to print with '\n' EOL

It looks like consistent EOL is the reason for 0605726179a0, but now on py3,
`print()` uses the platform EOL without regard to binary mode.  The tests mostly
use this to loop over a sequence of number in the shell, but there are a handful
that redirect output to a file.  Specifically, this fixes Windows runs of
`test-bundle2-multiple-changegroups.t`, but there may be other tests this fixes.

Some other `tests/*.py` files also set binary mode on stdout, but they also
write bytes directly to `sys.stdout.buffer`.  I'm not doing that here because
PyCharm flags these write calls for passing bytes instead of str (PyCharm is
likely wrong, but possibly confused because the code falls back to `sys.stdout`
if there is no `.buffer` attribute), and it's annoying.

#!/bin/sh
#
# This is an example of using HGEDITOR to create of diff to review the
# changes while committing.

# If you want to pass your favourite editor some other parameters
# only for Mercurial, modify this:
case "${EDITOR}" in
    "")
        EDITOR="vi"
        ;;
    emacs)
        EDITOR="$EDITOR -nw"
        ;;
    gvim|vim)
        EDITOR="$EDITOR -f -o"
        ;;
esac


HGTMP=""
cleanup_exit() {
    rm -rf "$HGTMP"
}

# Remove temporary files even if we get interrupted
trap "cleanup_exit" 0 # normal exit
trap "exit 255" HUP INT QUIT ABRT TERM

HGTMP=$(mktemp -d ${TMPDIR-/tmp}/hgeditor.XXXXXX)
[ x$HGTMP != x -a -d $HGTMP ] || {
  echo "Could not create temporary directory! Exiting." 1>&2
  exit 1
}

(
    grep '^HG: changed' "$1" | cut -b 13- | while read changed; do
        "$HG" diff "$changed" >> "$HGTMP/diff"
    done
)

cat "$1" > "$HGTMP/msg"

MD5=$(which md5sum 2>/dev/null) || \
    MD5=$(which md5 2>/dev/null)
[ -x "${MD5}" ] && CHECKSUM=`${MD5} "$HGTMP/msg"`
if [ -s "$HGTMP/diff" ]; then
    $EDITOR "$HGTMP/msg" "$HGTMP/diff" || exit $?
else
    $EDITOR "$HGTMP/msg" || exit $?
fi
[ -x "${MD5}" ] && (echo "$CHECKSUM" | ${MD5} -c >/dev/null 2>&1 && exit 13)

mv "$HGTMP/msg" "$1"

exit $?