comparison mercurial/revlog.py @ 44308:5962fd0d1045

nodemap: write nodemap data on disk

Let us start writing data on disk (so that we can read it from there later).
This series of changeset is going to focus first on having data on disk and
updating it.

Right now the data is written right next to the revlog data, in the store. We
might move it to cache (with proper cache validation mechanism) later, but for
now revlog have a storevfs instance and it is simpler to us it. The right
location for this data is not the focus of this series.

Differential Revision: https://phab.mercurial-scm.org/D7835

44307:c577bb4a04d4

        datafile=None,
        checkambig=False,
        mmaplargeindex=False,
        censorable=False,
        upperboundcomp=None,
    ):
        """
        create a revlog object

        opener is a function that abstracts the file opening operation

        """
        self.upperboundcomp = upperboundcomp
        self.indexfile = indexfile
        self.datafile = datafile or (indexfile[:-2] + b".d")
        self.opener = opener
        #  When True, indexfile is opened with checkambig=True at writing, to
        #  avoid file stat ambiguity.
        self._checkambig = checkambig
        self._mmaplargeindex = mmaplargeindex

            transaction.add(self.indexfile, offset, curr)
            ifh.write(entry)
            ifh.write(data[0])
            ifh.write(data[1])
            self._enforceinlinesize(transaction, ifh)

    def addgroup(self, deltas, linkmapper, transaction, addrevisioncb=None):
        """
        add a delta group

44308:5962fd0d1045

        datafile=None,
        checkambig=False,
        mmaplargeindex=False,
        censorable=False,
        upperboundcomp=None,
        persistentnodemap=False,
    ):
        """
        create a revlog object

        opener is a function that abstracts the file opening operation

        """
        self.upperboundcomp = upperboundcomp
        self.indexfile = indexfile
        self.datafile = datafile or (indexfile[:-2] + b".d")
        self.nodemap_file = None
        if persistentnodemap:
            self.nodemap_file = indexfile[:-2] + b".n"

        self.opener = opener
        #  When True, indexfile is opened with checkambig=True at writing, to
        #  avoid file stat ambiguity.
        self._checkambig = checkambig
        self._mmaplargeindex = mmaplargeindex

            transaction.add(self.indexfile, offset, curr)
            ifh.write(entry)
            ifh.write(data[0])
            ifh.write(data[1])
            self._enforceinlinesize(transaction, ifh)
        nodemaputil.setup_persistent_nodemap(transaction, self)

    def addgroup(self, deltas, linkmapper, transaction, addrevisioncb=None):
        """
        add a delta group