comparison mercurial/obsutil.py @ 34847:e27f1f04c2cf

templatekw: introduce obsfate keyword

Introduce an obsfate printer that uses all helpers functions defined in
obsutil to get all the obsfate-related data and format a string according to
the current format in test-obsmarker-template.t.

Then, introduce an obsfate templatekw that uses the obsfateprinter to return a
list of strings.

The goal is not to replace existing obsfate template functions but to propose
a default, good-enough and easily usable obsfate definition for end-users that
don't want to customize it. Such output would ultimately get included in the
default log output.

Here are some output examples for a commit amended:

rewritten using amend as 5:a9b1f8652753 by test (at 1970-01-01 00:00 +0000)

Next patches will make the output dependent on the verbosity.

Exemple of use-cases:

For having the obsfate on a single-line between brackets:

  {if(obsfate, " [{join(obsfate, "; ")}]")}

For having the obsfate in several lines:

  {if(obsfate, "{obsfate % "  Obsfate: {fate}\n"}")}

34846:f05a6e015ecc

    markersmeta = [dict(m[3]) for m in markers]
    operations = set(meta.get('operation') for meta in markersmeta
                     if meta.get('operation'))

    return sorted(operations)

34847:e27f1f04c2cf

    markersmeta = [dict(m[3]) for m in markers]
    operations = set(meta.get('operation') for meta in markersmeta
                     if meta.get('operation'))

    return sorted(operations)

def obsfateprinter(successors, markers, ui):
    """ Build a obsfate string for a single successorset using all obsfate
    related function defined in obsutil
    """
    line = []

    # Verb
    line.append(successorsetverb(successors))

    # Operations
    operations = markersoperations(markers)
    if operations:
        line.append(" using %s" % ", ".join(operations))

    # Successors
    if successors:
        fmtsuccessors = [successors.joinfmt(succ) for succ in successors]
        line.append(" as %s" % ", ".join(fmtsuccessors))

    # Users
    users = markersusers(markers)

    if users:
        line.append(" by %s" % ", ".join(users))

    # Date
    dates = markersdates(markers)

    min_date = min(dates)
    max_date = max(dates)

    if min_date == max_date:
        fmtmin_date = util.datestr(min_date, '%Y-%m-%d %H:%M %1%2')
        line.append(" (at %s)" % fmtmin_date)
    else:
        fmtmin_date = util.datestr(min_date, '%Y-%m-%d %H:%M %1%2')
        fmtmax_date = util.datestr(max_date, '%Y-%m-%d %H:%M %1%2')
        line.append(" (between %s and %s)" % (fmtmin_date, fmtmax_date))

    return "".join(line)