branchcache-v3: use more explicit header line
The key-value approach is clearer and gives more rooms to have the format evolve
in a clear way. It also provides extension (like topic) simpler way to extend
the validation scheme.
This is just a small evolution, the V3 format is still a work in progress.
$ testparseutil="$TESTDIR"/../contrib/testparseutil.py
Internal test by doctest
$ "$PYTHON" -m doctest "$testparseutil"
Tests for embedded python script
Typical cases
$ "$PYTHON" "$testparseutil" -v pyembedded <<NO_CHECK_EOF
> >>> for f in [1, 2, 3]:
> ... foo = 1
> >>> foo = 2
> $ echo "doctest is terminated by command, empty line, or comment"
> >>> foo = 31
> expected output of doctest fragment
> >>> foo = 32
>
> >>> foo = 33
>
> >>> foo = 34
> comment
> >>> foo = 35
>
> $ "\$PYTHON" <<EOF
> > foo = 4
> >
> > EOF
> $ cat > foo.py <<EOF
> > foo = 5
> > EOF
> $ cat >> foo.py <<EOF
> > foo = 6 # appended
> > EOF
>
> NO_CHECK_EOF limit mark makes parsing ignore corresponded fragment
> (this is useful to use bad code intentionally)
>
> $ "\$PYTHON" <<NO_CHECK_EOF
> > foo = 7 # this should be ignored at detection
> > NO_CHECK_EOF
> $ cat > foo.py <<NO_CHECK_EOF
> > foo = 8 # this should be ignored at detection
> > NO_CHECK_EOF
>
> doctest fragment ended by EOF
>
> >>> foo = 9
> NO_CHECK_EOF
<stdin>:1: <anonymous> starts
|for f in [1, 2, 3]:
| foo = 1
|foo = 2
<stdin>:4: <anonymous> ends
<stdin>:5: <anonymous> starts
|foo = 31
|
|foo = 32
|
|foo = 33
<stdin>:10: <anonymous> ends
<stdin>:11: <anonymous> starts
|foo = 34
<stdin>:12: <anonymous> ends
<stdin>:13: <anonymous> starts
|foo = 35
<stdin>:14: <anonymous> ends
<stdin>:16: <anonymous> starts
|foo = 4
|
<stdin>:18: <anonymous> ends
<stdin>:20: foo.py starts
|foo = 5
<stdin>:21: foo.py ends
<stdin>:23: foo.py starts
|foo = 6 # appended
<stdin>:24: foo.py ends
<stdin>:38: <anonymous> starts
|foo = 9
<stdin>:39: <anonymous> ends
Invalid test script
(similar test for shell script and hgrc configuration is omitted,
because this tests common base class of them)
$ "$PYTHON" "$testparseutil" -v pyembedded <<NO_CHECK_EOF > detected
> $ "\$PYTHON" <<EOF
> > foo = 1
>
> $ "\$PYTHON" <<EOF
> > foo = 2
> $ cat > bar.py <<EOF
> > bar = 2 # this fragment will be detected as expected
> > EOF
>
> $ cat > foo.py <<EOF
> > foo = 3
> NO_CHECK_EOF
<stdin>:3: unexpected line for "heredoc python invocation"
<stdin>:6: unexpected line for "heredoc python invocation"
<stdin>:11: unexpected end of file for "heredoc .py file"
[1]
$ cat detected
<stdin>:7: bar.py starts
|bar = 2 # this fragment will be detected as expected
<stdin>:8: bar.py ends
Tests for embedded shell script
$ "$PYTHON" "$testparseutil" -v shembedded <<NO_CHECK_EOF
> $ cat > foo.sh <<EOF
> > foo = 1
> >
> > foo = 2
> > EOF
> $ cat >> foo.sh <<EOF
> > foo = 3 # appended
> > EOF
>
> NO_CHECK_EOF limit mark makes parsing ignore corresponded fragment
> (this is useful to use bad code intentionally)
>
> $ cat > foo.sh <<NO_CHECK_EOF
> > # this should be ignored at detection
> > foo = 4
> > NO_CHECK_EOF
>
> NO_CHECK_EOF
<stdin>:2: foo.sh starts
|foo = 1
|
|foo = 2
<stdin>:5: foo.sh ends
<stdin>:7: foo.sh starts
|foo = 3 # appended
<stdin>:8: foo.sh ends
Tests for embedded hgrc configuration
$ "$PYTHON" "$testparseutil" -v hgrcembedded <<NO_CHECK_EOF
> $ cat > .hg/hgrc <<EOF
> > [ui]
> > verbose = true
> >
> > # end of local configuration
> > EOF
>
> $ cat > \$HGRCPATH <<EOF
> > [extensions]
> > rebase =
> > # end of global configuration
> > EOF
>
> $ cat >> \$HGRCPATH <<EOF
> > # appended
> > [extensions]
> > rebase =!
> > EOF
>
> NO_CHECK_EOF limit mark makes parsing ignore corresponded fragment
> (this is useful to use bad code intentionally)
>
> $ cat > .hg/hgrc <<NO_CHECK_EOF
> > # this local configuration should be ignored at detection
> > [ui]
> > username = foo bar
> > NO_CHECK_EOF
>
> $ cat > \$HGRCPATH <<NO_CHECK_EOF
> > # this global configuration should be ignored at detection
> > [extensions]
> > foobar =
> > NO_CHECK_EOF
> NO_CHECK_EOF
<stdin>:2: .hg/hgrc starts
|[ui]
|verbose = true
|
|# end of local configuration
<stdin>:6: .hg/hgrc ends
<stdin>:9: $HGRCPATH starts
|[extensions]
|rebase =
|# end of global configuration
<stdin>:12: $HGRCPATH ends
<stdin>:15: $HGRCPATH starts
|# appended
|[extensions]
|rebase =!
<stdin>:18: $HGRCPATH ends