Mercurial > hg
view tests/test-mq-missingfiles.t @ 44248:12491abf93bd stable
worker: manually buffer reads from pickle stream
My previous fix (D8051, cb52e619c99e, which added Python's built-in buffering
to the pickle stream) has the problem that the selector will ignore the buffer.
When multiple pickled objects are read from the pipe into the buffer at once,
only one object will be loaded.
This can repeat until the buffer is full and delays the processing of completed
items until the worker exits, at which point the pipe is always considered
readable and all remaining items are processed.
This changeset reverts D8051, removing the buffer again. Instead, on Python 3
only, we use a wrapper to modify the "read" provided to the Unpickler to behave
more like a buffered read. We never read more bytes from the pipe than the
Unpickler requests, so the selector behaves as expected.
Also add a test case for "pickle data was truncated" issue.
https://phab.mercurial-scm.org/D8051#119193
Differential Revision: https://phab.mercurial-scm.org/D8076
author | Jan Alexander Steffens (heftig) <jan.steffens@gmail.com> |
---|---|
date | Tue, 04 Feb 2020 22:07:36 +0100 |
parents | c70bdd222dcd |
children | fe3303436b79 |
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Issue835: qpush fails immediately when patching a missing file, but remaining added files are still created empty which will trick a future qrefresh. $ cat > writelines.py <<EOF > import sys > if sys.version_info[0] >= 3: > encode = lambda x: x.encode('utf-8').decode('unicode_escape').encode('utf-8') > else: > encode = lambda x: x.decode('string_escape') > path = sys.argv[1] > args = sys.argv[2:] > assert (len(args) % 2) == 0 > > f = open(path, 'wb') > for i in range(len(args) // 2): > count, s = args[2 * i:2 * i + 2] > count = int(count) > s = encode(s) > f.write(s * count) > f.close() > EOF $ echo "[extensions]" >> $HGRCPATH $ echo "mq=" >> $HGRCPATH $ hg init normal $ cd normal $ "$PYTHON" ../writelines.py b 10 'a\n' $ hg ci -Am addb adding b $ echo a > a $ "$PYTHON" ../writelines.py b 2 'b\n' 10 'a\n' 2 'c\n' $ echo c > c $ hg add a c $ hg qnew -f changeb $ hg qpop popping changeb patch queue now empty $ hg rm b $ hg ci -Am rmb Push patch with missing target: $ hg qpush applying changeb unable to find 'b' for patching (use '--prefix' to apply patch relative to the current directory) 2 out of 2 hunks FAILED -- saving rejects to file b.rej patch failed, unable to continue (try -v) patch failed, rejects left in working directory errors during apply, please fix and qrefresh changeb [2] Display added files: $ cat a a $ cat c c Display rejections: $ cat b.rej --- b +++ b @@ -1,3 +1,5 @@ +b +b a a a @@ -8,3 +10,5 @@ a a a +c +c Test missing renamed file $ hg qpop popping changeb patch queue now empty $ hg up -qC 0 $ echo a > a $ hg mv b bb $ "$PYTHON" ../writelines.py bb 2 'b\n' 10 'a\n' 2 'c\n' $ echo c > c $ hg add a c $ hg qnew changebb $ hg qpop popping changebb patch queue now empty $ hg up -qC 1 $ hg qpush applying changebb patching file bb Hunk #1 FAILED at 0 Hunk #2 FAILED at 7 2 out of 2 hunks FAILED -- saving rejects to file bb.rej b not tracked! patch failed, unable to continue (try -v) patch failed, rejects left in working directory errors during apply, please fix and qrefresh changebb [2] $ cat a a $ cat c c $ cat bb.rej --- bb +++ bb @@ -1,3 +1,5 @@ +b +b a a a @@ -8,3 +10,5 @@ a a a +c +c $ cd .. $ echo "[diff]" >> $HGRCPATH $ echo "git=1" >> $HGRCPATH $ hg init git $ cd git $ "$PYTHON" ../writelines.py b 1 '\x00' $ hg ci -Am addb adding b $ echo a > a $ "$PYTHON" ../writelines.py b 1 '\x01' 1 '\x00' $ echo c > c $ hg add a c $ hg qnew -f changeb $ hg qpop popping changeb patch queue now empty $ hg rm b $ hg ci -Am rmb Push git patch with missing target: $ hg qpush applying changeb unable to find 'b' for patching (use '--prefix' to apply patch relative to the current directory) 1 out of 1 hunks FAILED -- saving rejects to file b.rej patch failed, unable to continue (try -v) patch failed, rejects left in working directory errors during apply, please fix and qrefresh changeb [2] $ hg st ? b.rej Display added files: $ cat a a $ cat c c Display rejections: $ cat b.rej --- b +++ b GIT binary patch literal 2 Jc${No0000400IC2 $ cd .. Test push creating directory during git copy or rename: $ hg init missingdir $ cd missingdir $ echo a > a $ hg ci -Am adda adding a $ mkdir d $ hg copy a d/a2 $ hg mv a d/a $ hg qnew -g -f patch $ hg qpop popping patch patch queue now empty $ hg qpush applying patch now at: patch $ cd ..