mercurial/cmdutil.py

24717:90f2b9de30f2

    # Automation often uses hg cat on single files, so special case it
    # for performance to avoid the cost of parsing the manifest.
    if len(matcher.files()) == 1 and not matcher.anypats():
        file = matcher.files()[0]
        mf = repo.manifest
        mfnode = ctx._changeset[0]
        if mf.find(mfnode, file)[0]:
            write(file)
            return 0

    # Don't warn about "missing" files that are really in subrepos

24718:a4191e0c728f

    # Automation often uses hg cat on single files, so special case it
    # for performance to avoid the cost of parsing the manifest.
    if len(matcher.files()) == 1 and not matcher.anypats():
        file = matcher.files()[0]
        mf = repo.manifest
        mfnode = ctx.manifestnode()
        if mf.find(mfnode, file)[0]:
            write(file)
            return 0

    # Don't warn about "missing" files that are really in subrepos