obsolete: add createmarkers option The basic obsolete option is allowing the creation of obsolete markers. This does not enable other features, such as allowing unstable commits or exchanging obsolete markers.

obsolete: add readonly flag to obstore constructor Previously, obstore read the obsolete._enabled flag to determine whether to allow writes to the obstore. Since obsolete._enabled will be moving into a repo specific config, we can't read it globally, and therefore must pass the information into the constructor.

obsolete: add isenabled function for option checking Previously, obsolete used the module level _enabled flag to determine whether it was on or off. We need a bit more granular control, so we'll be introducing toggle options. The isenabled() function is how you check if a particular option is enabled for the given repository. Future patches will add options such as 'createmarkers', 'allowunstable', and 'exchange' to enable various features of obsolete markers.

obsstore: fix defaultformat option passing The obsstore format passing was not actually being passed to the obsstore. This fixes it.

tests: use $PYTHON instead of hardcoding python This makes running the testsuite with pypy possible.

checklink: always close the NamedTemporaryFile This fixes test-patchbomb.t when using pypy with --pure.

hgignore: ignore the PyCharm workspace folder

revset: better naming of variables containing the value of a single argument Calling them args is not helpful.

manifest: add docstring to text() method

manifest: rename ambiguously-named set to setflag Just makes it a little clearer what this method does.