Mercurial > hg
annotate hgeditor @ 44651:00e0c5c06ed5
pycompat: change argv conversion semantics
Use of os.fsencode() to convert Python's sys.argv back to bytes
was not correct because it isn't the logically inverse operation
from what CPython was doing under the hood.
This commit changes the logic for doing the str -> bytes
conversion. This required a separate implementation for
POSIX and Windows.
The Windows behavior is arguably not ideal. The previous
behavior on Windows was leading to failing tests, such as
test-http-branchmap.t, which defines a utf-8 branch name
via a command argument. Previously, Mercurial's argument
parser looked to be receiving wchar_t bytes in some cases.
After this commit, behavior on Windows is compatible with
Python 2, where CPython did not implement `int wmain()` and
Windows was performing a Unicode to ANSI conversion on the
wchar_t native command line.
Arguably better behavior on Windows would be for Mercurial to
preserve the original Unicode sequence coming from Python and
to wrap this in a bytes-like type so we can round trip safely.
But, this would be new, backwards incompatible behavior. My
goal for this commit was to converge Mercurial behavior on
Python 3 on Windows to fix busted tests. And I believe I was
successful, as this commit fixes 9 tests on my Windows
machine and 14 tests in the AWS CI environment!
Differential Revision: https://phab.mercurial-scm.org/D8337
author | Gregory Szorc <gregory.szorc@gmail.com> |
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date | Sat, 28 Mar 2020 12:18:58 -0700 |
parents | 1aee2ab0f902 |
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1 #!/bin/sh |
186 | 2 # |
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3 # This is an example of using HGEDITOR to create of diff to review the |
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4 # changes while committing. |
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5 |
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6 # If you want to pass your favourite editor some other parameters |
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7 # only for Mercurial, modify this: |
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8 case "${EDITOR}" in |
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9 "") |
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10 EDITOR="vi" |
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11 ;; |
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12 emacs) |
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13 EDITOR="$EDITOR -nw" |
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14 ;; |
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15 gvim|vim) |
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16 EDITOR="$EDITOR -f -o" |
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17 ;; |
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18 esac |
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20 |
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21 HGTMP="" |
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22 cleanup_exit() { |
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23 rm -rf "$HGTMP" |
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24 } |
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25 |
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26 # Remove temporary files even if we get interrupted |
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27 trap "cleanup_exit" 0 # normal exit |
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28 trap "exit 255" HUP INT QUIT ABRT TERM |
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29 |
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30 HGTMP=$(mktemp -d ${TMPDIR-/tmp}/hgeditor.XXXXXX) |
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31 [ x$HGTMP != x -a -d $HGTMP ] || { |
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32 echo "Could not create temporary directory! Exiting." 1>&2 |
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33 exit 1 |
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34 } |
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35 |
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36 ( |
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37 grep '^HG: changed' "$1" | cut -b 13- | while read changed; do |
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38 "$HG" diff "$changed" >> "$HGTMP/diff" |
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39 done |
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40 ) |
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41 |
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42 cat "$1" > "$HGTMP/msg" |
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43 |
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44 MD5=$(which md5sum 2>/dev/null) || \ |
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45 MD5=$(which md5 2>/dev/null) |
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46 [ -x "${MD5}" ] && CHECKSUM=`${MD5} "$HGTMP/msg"` |
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47 if [ -s "$HGTMP/diff" ]; then |
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48 $EDITOR "$HGTMP/msg" "$HGTMP/diff" || exit $? |
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49 else |
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50 $EDITOR "$HGTMP/msg" || exit $? |
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51 fi |
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52 [ -x "${MD5}" ] && (echo "$CHECKSUM" | ${MD5} -c >/dev/null 2>&1 && exit 13) |
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53 |
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54 mv "$HGTMP/msg" "$1" |
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55 |
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56 exit $? |