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Add migrators for context.Args() indexing and EnvVars

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This commit is contained in:
Dan Buch 2016-05-31 16:39:56 -04:00
parent e3a099f7c5
commit c9011d8351
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GPG Key ID: FAEF12936DD3E3EC
1 changed files with 59 additions and 9 deletions
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68
cli-v1-to-v2
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@ -19,16 +19,12 @@ _SLICE_TYPE_RE = re.compile(
'&cli\\.(?P<type>IntSlice|StringSlice){(?P<args>[^}]*)}', '&cli\\.(?P<type>IntSlice|StringSlice){(?P<args>[^}]*)}',
flags=re.DOTALL flags=re.DOTALL
) )
_FLAG_LITERAL_RE = re.compile( _FLAG_LITERAL_RE = re.compile('(?P<prefix>\\s+)cli\\.(?P<type>\\w+)Flag{')
'(?P<prefix>\\s+)cli\\.(?P<type>\\w+)Flag{', _COMMAND_SLICE_RE = re.compile('(?P<prefix>\\[\\])cli\\.Command{')
) _COMMAND_LITERAL_RE = re.compile('(?P<prefix>\\s+)cli\\.Command{')
_COMMAND_SLICE_RE = re.compile(
'(?P<prefix>\\[\\])cli\\.Command{',
)
_COMMAND_LITERAL_RE = re.compile(
'(?P<prefix>\\s+)cli\\.Command{',
)
_EXIT_ERROR_RE = re.compile('cli\\.NewExitError') _EXIT_ERROR_RE = re.compile('cli\\.NewExitError')
_CONTEXT_ARGS_INDEX_RE = re.compile('\\.Args\\(\\)\\[(?P<index>\\d+)\\]')
_ENVVAR_STRING_RE = re.compile('EnvVar:(?P<ws>\\s+)"(?P<string>[^"]+)"')
_BOOL_T_FLAG_RE = re.compile( _BOOL_T_FLAG_RE = re.compile(
'cli\\.BoolTFlag{(?P<args>[^}]*)}', 'cli\\.BoolTFlag{(?P<args>[^}]*)}',
flags=re.DOTALL flags=re.DOTALL
@ -183,6 +179,30 @@ def _bool_t_flag_repl(match):
) )
@_migrator
def _migrate_context_args_index(source):
return _CONTEXT_ARGS_INDEX_RE.sub(_context_args_index_repl, source)
def _context_args_index_repl(match):
return '.Args().Get({})'.format(match.groupdict()['index'])
@_migrator
def _migrate_envvar_string(source):
return _ENVVAR_STRING_RE.sub(_envvar_string_repl, source)
def _envvar_string_repl(match):
return 'EnvVars:{}[]string{{{}}}'.format(
match.groupdict()['ws'],
', '.join([
'"{}"'.format(s) for s in
re.split('\\s*,\\s*', match.groupdict()['string'])
])
)
def test_migrators(): def test_migrators():
import difflib import difflib
@ -280,6 +300,36 @@ _MIGRATOR_TESTS = (
\t\t\t\t\tName: "blurp", \t\t\t\t\tName: "blurp",
\t\t\t\t}, \t\t\t\t},
\t\t\t} \t\t\t}
"""),
("""
\t\t\tAction = func(c *cli.Context) error {
\t\t\t\tif c.Args()[4] == "meep" {
\t\t\t\t\treturn nil
\t\t\t\t}
\t\t\t\treturn errors.New("mope")
\t\t\t}
""", """
\t\t\tAction = func(c *cli.Context) error {
\t\t\t\tif c.Args().Get(4) == "meep" {
\t\t\t\t\treturn nil
\t\t\t\t}
\t\t\t\treturn errors.New("mope")
\t\t\t}
"""),
("""
\t\tapp.Flags = []cli.Flag{
\t\t\tcli.StringFlag{
\t\t\t\tName: "toots",
\t\t\t\tEnvVar: "TOOTS,TOOTERS",
\t\t\t},
\t\t}
""", """
\t\tapp.Flags = []cli.Flag{
\t\t\t&cli.StringFlag{
\t\t\t\tName: "toots",
\t\t\t\tEnvVars: []string{"TOOTS", "TOOTERS"},
\t\t\t},
\t\t}
""") """)
) )