procutil: make stream detection in make_line_buffered more correct and strict
In make_line_buffered(), we don’t want to wrap the stream if we know that lines
get flushed to the underlying raw stream already.
Previously, the heuristic was too optimistic. It assumed that any stream which
is not an instance of io.BufferedIOBase doesn’t need wrapping. However, there
are buffered streams that aren’t instances of io.BufferedIOBase, like
Mercurial’s own winstdout.
The new logic is different in two ways:
First, only for the check, if unwraps any combination of WriteAllWrapper and
winstdout.
Second, it skips wrapping the stream only if it is an instance of io.RawIOBase
(or already wrapped). If it is an instance of io.BufferedIOBase, it gets
wrapped. In any other case, the function raises an exception. This ensures
that, if an unknown stream is passed or we add another wrapper in the future,
we don’t wrap the stream if it’s already line buffered or not wrap the stream
if it’s not line buffered. In fact, this was already helpful during development
of this change. Without it, I possibly would have forgot that WriteAllWrapper
needs to be ignored for the check, leading to unnecessary wrapping if stdout is
unbuffered.
The alternative would have been to always wrap unknown streams. However, I
don’t think that anyone would benefit from being less strict. We can expect
streams from the standard library to be subclassing either io.RawIOBase or
io.BufferedIOBase, so running Mercurial in the standard way should not regress
by this change. Py2exe might replace sys.stdout and sys.stderr, but that
currently breaks Mercurial anyway and also these streams don’t claim to be
interactive, so this function is not called for them.
$ remove() {
> hg rm $@
> echo "exit code: $?"
> hg st
> # do not use ls -R, which recurses in .hg subdirs on Mac OS X 10.5
> find . -name .hg -prune -o -type f -print | sort
> hg up -C
> }
$ cat >> $HGRCPATH <<EOF
> [progress]
> disable=False
> assume-tty = 1
> delay = 0
> # set changedelay really large so we don't see nested topics
> changedelay = 30000
> format = topic bar number
> refresh = 0
> width = 60
> EOF
$ hg init a
$ cd a
$ echo a > foo
file not managed
$ remove foo
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
not removing foo: file is untracked
exit code: 1
? foo
./foo
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg add foo
$ hg commit -m1
the table cases
00 state added, options none
$ echo b > bar
$ hg add bar
$ remove bar
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
skipping [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
not removing bar: file has been marked for add (use 'hg forget' to undo add)
exit code: 1
A bar
./bar
./foo
\r (no-eol) (esc)
updating [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
01 state clean, options none
$ remove foo
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
exit code: 0
R foo
? bar
./bar
\r (no-eol) (esc)
updating [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
02 state modified, options none
$ echo b >> foo
$ remove foo
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
skipping [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
not removing foo: file is modified (use -f to force removal)
exit code: 1
M foo
? bar
./bar
./foo
\r (no-eol) (esc)
updating [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
03 state missing, options none
$ rm foo
$ remove foo
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
exit code: 0
R foo
? bar
./bar
\r (no-eol) (esc)
updating [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
10 state added, options -f
$ echo b > bar
$ hg add bar
$ remove -f bar
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
exit code: 0
? bar
./bar
./foo
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ rm bar
11 state clean, options -f
$ remove -f foo
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
exit code: 0
R foo
\r (no-eol) (esc)
updating [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
12 state modified, options -f
$ echo b >> foo
$ remove -f foo
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
exit code: 0
R foo
\r (no-eol) (esc)
updating [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
13 state missing, options -f
$ rm foo
$ remove -f foo
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
exit code: 0
R foo
\r (no-eol) (esc)
updating [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
20 state added, options -A
$ echo b > bar
$ hg add bar
$ remove -A bar
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
skipping [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
not removing bar: file still exists
exit code: 1
A bar
./bar
./foo
\r (no-eol) (esc)
updating [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
21 state clean, options -Av
$ remove -Av foo
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
skipping [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
not removing foo: file still exists
exit code: 1
? bar
./bar
./foo
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
22 state modified, options -Av
$ echo b >> foo
$ remove -Av foo
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
skipping [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
not removing foo: file still exists
exit code: 1
M foo
? bar
./bar
./foo
\r (no-eol) (esc)
updating [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
23 state missing, options -A
$ rm foo
$ remove -A foo
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
exit code: 0
R foo
? bar
./bar
\r (no-eol) (esc)
updating [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
30 state added, options -Af
$ echo b > bar
$ hg add bar
$ remove -Af bar
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
exit code: 0
? bar
./bar
./foo
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ rm bar
31 state clean, options -Af
$ remove -Af foo
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
exit code: 0
R foo
./foo
\r (no-eol) (esc)
updating [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
32 state modified, options -Af
$ echo b >> foo
$ remove -Af foo
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
exit code: 0
R foo
./foo
\r (no-eol) (esc)
updating [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
33 state missing, options -Af
$ rm foo
$ remove -Af foo
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
exit code: 0
R foo
\r (no-eol) (esc)
updating [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
test some directory stuff
$ mkdir test
$ echo a > test/foo
$ echo b > test/bar
$ hg ci -Am2
adding test/bar
adding test/foo
dir, options none
$ rm test/bar
$ remove test
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
deleting [=====================> ] 1/2\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
deleting [===========================================>] 2/2\r (no-eol) (esc)
\r (no-eol) (esc)
removing test/bar
removing test/foo
exit code: 0
R test/bar
R test/foo
./foo
\r (no-eol) (esc)
updating [===========================================>] 2/2\r (no-eol) (esc)
\r (no-eol) (esc)
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
dir, options -f
$ rm test/bar
$ remove -f test
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
deleting [=====================> ] 1/2\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
deleting [===========================================>] 2/2\r (no-eol) (esc)
\r (no-eol) (esc)
removing test/bar
removing test/foo
exit code: 0
R test/bar
R test/foo
./foo
\r (no-eol) (esc)
updating [===========================================>] 2/2\r (no-eol) (esc)
\r (no-eol) (esc)
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
dir, options -Av
$ rm test/bar
$ remove -Av test
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
skipping [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
removing test/bar
not removing test/foo: file still exists
exit code: 1
R test/bar
./foo
./test/foo
\r (no-eol) (esc)
updating [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
dir, options -A <dir>
$ rm test/bar
$ remove -A test
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
skipping [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
removing test/bar
exit code: 1
R test/bar
./foo
./test/foo
\r (no-eol) (esc)
updating [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
without any files/dirs, options -A
$ rm test/bar
$ remove -A
\r (no-eol) (esc)
skipping [=====================> ] 1/2\r (no-eol) (esc)
skipping [===========================================>] 2/2\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
removing test/bar
exit code: 1
R test/bar
./foo
./test/foo
\r (no-eol) (esc)
updating [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
dir, options -Af
$ rm test/bar
$ remove -Af test
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
deleting [=====================> ] 1/2\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
deleting [===========================================>] 2/2\r (no-eol) (esc)
\r (no-eol) (esc)
removing test/bar
removing test/foo
exit code: 0
R test/bar
R test/foo
./foo
./test/foo
\r (no-eol) (esc)
updating [===========================================>] 2/2\r (no-eol) (esc)
\r (no-eol) (esc)
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
test remove dropping empty trees (issue1861)
$ mkdir -p issue1861/b/c
$ echo x > issue1861/x
$ echo y > issue1861/b/c/y
$ hg ci -Am add
adding issue1861/b/c/y
adding issue1861/x
$ hg rm issue1861/b
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
removing issue1861/b/c/y
$ hg ci -m remove
$ ls issue1861
x
test that commit does not crash if the user removes a newly added file
$ touch f1
$ hg add f1
$ rm f1
$ hg ci -A -mx
removing f1
nothing changed
[1]
handling of untracked directories and missing files
$ mkdir d1
$ echo a > d1/a
$ hg rm --after d1
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
not removing d1: no tracked files
[1]
$ hg add d1/a
$ rm d1/a
$ hg rm --after d1
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
removing d1/a
$ hg rm --after nosuch
nosuch: * (glob)
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
[1]
test dry-run for remove
$ hg init testdryrun
$ cd testdryrun
$ echo a>a
$ hg ci -qAm1
$ hg remove a -nv
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
removing a
$ hg remove a -nv --color debug
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
[ui.addremove.removed ui.status|removing a]
$ hg diff
$ cat >> .hg/hgrc <<EOF
> [extensions]
> largefiles=
> EOF
$ echo 'B as largefile' > B
$ hg add --large B
$ hg ci -m "B"
$ hg remove B -nv
removing B
$ hg st
$ cd ..