view hgeditor @ 32647:331dcf199039

setup: prevent setuptools from laying an egg

Previously, test-hghave.t was failing on Windows (and on Linux if
$FORCE_SETUPTOOLS was set) with the following:

  --- c:/Users/Matt/Projects/hg/tests/test-hghave.t
  +++ c:/Users/Matt/Projects/hg/tests/test-hghave.t.err
  @@ -19,7 +19,11 @@
     >   foo
     > EOF
     $ run-tests.py $HGTEST_RUN_TESTS_PURE test-hghaveaddon.t
  +  warning: Testing with unexpected mercurial lib: c:\Users\Matt\Projects\hg\mercurial
  +           (expected ...\hgtests.mu9rou\install\lib\python\mercurial)
     .
  +  warning: Tested with unexpected mercurial lib: c:\Users\Matt\Projects\hg\mercurial
  +           (expected ...\hgtests.mu9rou\install\lib\python\mercurial)

Augie relayed concerns[1] about the first attempt at this, which also excluded
'install_egg_info'.  All that needs to be excluded to avoid the egg and make the
test work is to filter out 'bdist_egg'.  (Actually, the body of this class could
simply be 'pass', and 'bdist_egg' still isn't run.  But that seems to magical.)

Also note that prior to this (and still now), `make clean` doesn't delete the
'mercurial.egg-info' that is generated by `make install`.

[1] https://www.mercurial-scm.org/pipermail/mercurial-devel/2017-May/097668.html

# no-check-commit

#!/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 $?