Mercurial > hg
view tests/test-import-eol.t @ 42050:03f6480bfdda
unshelve: disable unshelve during merge (issue5123)
As stated in the issue5123, unshelve can destroy the second parent of
the context when tried to unshelve with an uncommitted merge. This
patch makes unshelve to abort when called with an uncommitted merge.
See how shelve.mergefiles works. Commit structure looks like this:
```
... -> pctx -> tmpwctx -> shelvectx
/
/
second
merge parent
pctx = parent before merging working context(first merge parent)
tmpwctx = commited working directory after merge(with two parents)
shelvectx = shelved context
```
shelve.mergefiles first updates to pctx then it reverts shelvectx to pctx with:
```
cmdutil.revert(ui, repo, shelvectx, repo.dirstate.parents(),
*pathtofiles(repo, files),
**{'no_backup': True})
```
Reverting tmpwctx files that were merged from second parent to pctx makes them
added because they are not in pctx.
Changing this revert operation is crucial to restore parents after unshelve.
This is a complicated issue as this is not fixing a regression. Thus, for the
time being, unshelve during an uncommitted merge can be aborted.
(Details taken from http://mercurial.808500.n3.nabble.com/PATCH-V3-shelve-restore-parents-after-unshelve-issue5123-tt4036858.html#a4037408)
Differential Revision: https://phab.mercurial-scm.org/D6169
author | Navaneeth Suresh <navaneeths1998@gmail.com> |
---|---|
date | Mon, 25 Mar 2019 12:33:41 +0530 |
parents | 140b542b0e59 |
children |
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$ cat > makepatch.py <<EOF > import sys > f = open(sys.argv[2], 'wb') > w = f.write > w(b'test message\n') > w(b'diff --git a/a b/a\n') > w(b'--- a/a\n') > w(b'+++ b/a\n') > w(b'@@ -1,5 +1,5 @@\n') > w(b' a\n') > w(b'-bbb\r\n') > w(b'+yyyy\r\n') > w(b' cc\r\n') > w({'empty:lf': b' \n', > 'empty:crlf': b' \r\n', > 'empty:stripped-lf': b'\n', > 'empty:stripped-crlf': b'\r\n'}[sys.argv[1]]) > w(b' d\n') > w(b'-e\n') > w(b'\\\\ No newline at end of file\n') > w(b'+z\r\n') > w(b'\\\\ No newline at end of file\r\n') > EOF $ hg init repo $ cd repo $ echo '\.diff' > .hgignore Test different --eol values $ "$PYTHON" -c 'open("a", "wb").write(b"a\nbbb\ncc\n\nd\ne")' $ hg ci -Am adda adding .hgignore adding a $ "$PYTHON" ../makepatch.py empty:lf eol.diff $ "$PYTHON" ../makepatch.py empty:crlf eol-empty-crlf.diff $ "$PYTHON" ../makepatch.py empty:stripped-lf eol-empty-stripped-lf.diff $ "$PYTHON" ../makepatch.py empty:stripped-crlf eol-empty-stripped-crlf.diff invalid eol $ hg --config patch.eol='LFCR' import eol.diff applying eol.diff abort: unsupported line endings type: LFCR [255] $ hg revert -a force LF $ hg --traceback --config patch.eol='LF' import eol.diff applying eol.diff $ hg id 9e4ef7b3d4af tip $ cat a a yyyy cc d e (no-eol) $ hg st (test empty-line variants: all of them should generate the same revision) $ hg up -qC 0 $ hg --config patch.eol='LF' import eol-empty-crlf.diff applying eol-empty-crlf.diff $ hg id 9e4ef7b3d4af tip $ hg up -qC 0 $ hg --config patch.eol='LF' import eol-empty-stripped-lf.diff applying eol-empty-stripped-lf.diff $ hg id 9e4ef7b3d4af tip $ hg up -qC 0 $ hg --config patch.eol='LF' import eol-empty-stripped-crlf.diff applying eol-empty-stripped-crlf.diff $ hg id 9e4ef7b3d4af tip force CRLF $ hg up -C 0 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg --traceback --config patch.eol='CRLF' import eol.diff applying eol.diff $ cat a a\r (esc) yyyy\r (esc) cc\r (esc) \r (esc) d\r (esc) e (no-eol) $ hg st auto EOL on LF file $ hg up -C 0 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg --traceback --config patch.eol='auto' import eol.diff applying eol.diff $ cat a a yyyy cc d e (no-eol) $ hg st auto EOL on CRLF file $ "$PYTHON" -c 'open("a", "wb").write(b"a\r\nbbb\r\ncc\r\n\r\nd\r\ne")' $ hg commit -m 'switch EOLs in a' $ hg --traceback --config patch.eol='auto' import eol.diff applying eol.diff $ cat a a\r (esc) yyyy\r (esc) cc\r (esc) \r (esc) d\r (esc) e (no-eol) $ hg st auto EOL on new file or source without any EOL $ "$PYTHON" -c 'open("noeol", "wb").write(b"noeol")' $ hg add noeol $ hg commit -m 'add noeol' $ "$PYTHON" -c 'open("noeol", "wb").write(b"noeol\r\nnoeol\n")' $ "$PYTHON" -c 'open("neweol", "wb").write(b"neweol\nneweol\r\n")' $ hg add neweol $ hg diff --git > noeol.diff $ hg revert --no-backup noeol neweol $ rm neweol $ hg --traceback --config patch.eol='auto' import -m noeol noeol.diff applying noeol.diff $ cat noeol noeol\r (esc) noeol $ cat neweol neweol neweol\r (esc) $ hg st Test --eol and binary patches $ "$PYTHON" -c 'open("b", "wb").write(b"a\x00\nb\r\nd")' $ hg ci -Am addb adding b $ "$PYTHON" -c 'open("b", "wb").write(b"a\x00\nc\r\nd")' $ hg diff --git > bin.diff $ hg revert --no-backup b binary patch with --eol $ hg import --config patch.eol='CRLF' -m changeb bin.diff applying bin.diff $ cat b a\x00 (esc) c\r (esc) d (no-eol) $ hg st $ cd ..