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j*d&d'�G d(d)� d)e ��Z+d*d+� Z,dGd,d-�Z-d.d/� Z.dGd0d1�Z/d2d3� Z0d4d5� Z1dHd6d7�Z2dHd8d9�Z3e � Z4G d:d;� d;ej5�Z6 < < <dId=d>�Z7d?d@� Z8ej9dAdB� �Z:ej9dCdD� �Z;dEdF� Z<dS )Ja~ Generic output formatting for Mercurial
The formatter provides API to show data in various ways. The following
functions should be used in place of ui.write():
- fm.write() for unconditional output
- fm.condwrite() to show some extra data conditionally in plain output
- fm.context() to provide changectx to template output
- fm.data() to provide extra data to JSON or template output
- fm.plain() to show raw text that isn't provided to JSON or template output
To show structured data (e.g. date tuples, dicts, lists), apply fm.format*()
beforehand so the data is converted to the appropriate data type. Use
fm.isplain() if you need to convert or format data conditionally which isn't
supported by the formatter API.
To build nested structure (i.e. a list of dicts), use fm.nested().
See also https://www.mercurial-scm.org/wiki/GenericTemplatingPlan
fm.condwrite() vs 'if cond:':
In most cases, use fm.condwrite() so users can selectively show the data
in template output. If it's costly to build data, use plain 'if cond:' with
fm.write().
fm.nested() vs fm.formatdict() (or fm.formatlist()):
fm.nested() should be used to form a tree structure (a list of dicts of
lists of dicts...) which can be accessed through template keywords, e.g.
"{foo % "{bar % {...}} {baz % {...}}"}". On the other hand, fm.formatdict()
exports a dict-type object to template, which can be accessed by e.g.
"{get(foo, key)}" function.
Doctest helper:
>>> def show(fn, verbose=False, **opts):
... import sys
... from . import ui as uimod
... ui = uimod.ui()
... ui.verbose = verbose
... ui.pushbuffer()
... try:
... return fn(ui, ui.formatter(pycompat.sysbytes(fn.__name__),
... pycompat.byteskwargs(opts)))
... finally:
... print(pycompat.sysstr(ui.popbuffer()), end='')
Basic example:
>>> def files(ui, fm):
... files = [(b'foo', 123, (0, 0)), (b'bar', 456, (1, 0))]
... for f in files:
... fm.startitem()
... fm.write(b'path', b'%s', f[0])
... fm.condwrite(ui.verbose, b'date', b' %s',
... fm.formatdate(f[2], b'%Y-%m-%d %H:%M:%S'))
... fm.data(size=f[1])
... fm.plain(b'\n')
... fm.end()
>>> show(files)
foo
bar
>>> show(files, verbose=True)
foo 1970-01-01 00:00:00
bar 1970-01-01 00:00:01
>>> show(files, template=b'json')
[
{
"date": [0, 0],
"path": "foo",
"size": 123
},
{
"date": [1, 0],
"path": "bar",
"size": 456
}
]
>>> show(files, template=b'path: {path}\ndate: {date|rfc3339date}\n')
path: foo
date: 1970-01-01T00:00:00+00:00
path: bar
date: 1970-01-01T00:00:01+00:00
Nested example:
>>> def subrepos(ui, fm):
... fm.startitem()
... fm.write(b'reponame', b'[%s]\n', b'baz')
... files(ui, fm.nested(b'files', tmpl=b'{reponame}'))
... fm.end()
>>> show(subrepos)
[baz]
foo
bar
>>> show(subrepos, template=b'{reponame}: {join(files % "{path}", ", ")}\n')
baz: foo, bar
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