[global] Replace use of .format() with f-strings

As part of the project's effort to modernize on f-strings, this commit
replaces all usage of .format() with f-string equivalents. The vast
majority of these are in-place syntax changes, but a limited number
change the order of list items or some formatting tricks in order to
appease PEP8.

None of these conversions change the underlying logic of the flows they
appear in.

Related: sosreport#3472 discussion

Signed-off-by: Jake Hunsaker <jacob.r.hunsaker@gmail.com>

sos/__init__.py

@@ -90,9 +90,7 @@ def __init__(self, args):
             aliases.insert(0, com)
             _com = ', '.join(aliases)
             desc = self._components[com][0].desc
-            _com_string += (
-                "\t{com:<30}{desc}\n".format(com=_com, desc=desc)
-            )
+            _com_string += (f"\t{_com:<30}{desc}\n")
         usage_string = ("%(prog)s <component> [options]\n\n"
                         "Available components:\n")
         usage_string = usage_string + _com_string

sos/cleaner/archives/__init__.py

@@ -110,7 +110,7 @@ def get_archive_root(self):
 
     def report_msg(self, msg):
         """Helper to easily format ui messages on a per-report basis"""
-        self.ui_log.info("{:<50} {}".format(self.ui_name + ' :', msg))
+        self.ui_log.info(f"{self.ui_name + ' :':<50} {msg}")
 
     def _fmt_log_msg(self, msg):
         return "[cleaner:%s] %s" % (self.archive_name, msg)

sos/collector/__init__.py

@@ -516,7 +516,7 @@ def display_help(cls, section):
         )
         for hsec in hsections:
             section.add_text(
-                "{:>8}{:<40}{:<30}".format(' ', bold(hsec), hsections[hsec]),
+                f"{' ':>8}{bold(hsec):<40}{hsections[hsec]:<30}",
                 newline=False
             )
 
@@ -650,9 +650,9 @@ def list_options(self):
         sys.stdout.write('Use the short name with --cluster-type or cluster '
                          'options (-c)\n\n')
         for cluster in sorted(self.clusters):
-            sys.stdout.write(" {:<15} {:30}\n".format(
-                                cluster,
-                                self.clusters[cluster].cluster_name))
+            sys.stdout.write(
+                f" {cluster:<15} {self.clusters[cluster].cluster_name:30}\n"
+            )
 
         _opts = {}
         for _cluster in self.clusters:
@@ -665,22 +665,18 @@ def list_options(self):
                             _opts[opt.name].cluster.append(clust)
 
         sys.stdout.write('\nThe following cluster options are available:\n\n')
-        sys.stdout.write(' {:25} {:15} {:<10} {:10} {:<}\n'.format(
-            'Cluster',
-            'Option Name',
-            'Type',
-            'Default',
-            'Description'
-        ))
+        sys.stdout.write(
+            f" {'Cluster':25} {'Option Name':15} {'Type':<10} {'Default':10} "
+            f"{'Description':<}\n"
+        )
 
         for _opt in sorted(_opts, key=lambda x: _opts[x].cluster):
             opt = _opts[_opt]
-            optln = ' {:25} {:15} {:<10} {:<10} {:<10}\n'.format(
-                ', '.join(c for c in sorted(opt.cluster)),
-                opt.name,
-                opt.opt_type.__name__,
-                str(opt.value),
-                opt.description)
+            optln = (
+                f"  {', '.join(c for c in sorted(opt.cluster)):25} "
+                f"{opt.name:15} {opt.opt_type.__name__:<10} "
+                f"{str(opt.value):<10} {opt.description:<10}\n"
+            )
             sys.stdout.write(optln)
         sys.stdout.write('\nOptions take the form of cluster.name=value'
                          '\nE.G. "ovirt.no-database=True" or '

sos/collector/clusters/__init__.py

@@ -145,10 +145,11 @@ def display_help(cls, section):
                 "These options may be toggled or changed using '%s'"
                 % bold("-c %s.$option=$value" % cls.__name__)
             )
-            optsec.add_text(bold(
-                "\n{:<4}{:<20}{:<30}{:<20}\n".format(
-                    ' ', "Option Name", "Default", "Description")
-                ), newline=False
+            optsec.add_text(
+                bold(
+                    f"\n{' ':<4}{'Option Name':<20}{'Default':<30}"
+                    f"{'Description':<20}\n"),
+                newline=False
             )
             for opt in cls.option_list:
                 val = opt[1]
@@ -157,8 +158,7 @@ def display_help(cls, section):
                         val = 'True/On'
                     else:
                         val = 'False/Off'
-                _ln = "{:<4}{:<20}{:<30}{:<20}".format(' ', opt[0], val,
-                                                       opt[2])
+                _ln = f"{' ':<4}{opt[0]:<20}{val:<30}{opt[2]:<20}"
                 optsec.add_text(_ln, newline=False)
 
     @classmethod
@@ -185,13 +185,13 @@ def display_self_help(cls, section):
             'The following cluster profiles are locally available:\n'
         )
         section.add_text(
-            "{:>8}{:<40}{:<30}".format(' ', 'Name', 'Description'),
+            f"{' ':>8}{'Name':<40}{'Description':<30}",
             newline=False
         )
         for cluster in clusters:
             _sec = bold("collect.clusters.%s" % cluster[0])
             section.add_text(
-                "{:>8}{:<40}{:<30}".format(' ', _sec, cluster[1].cluster_name),
+                f"{' ':>8}{_sec:<40}{cluster[1].cluster_name:<30}",
                 newline=False
             )
 

sos/collector/clusters/ovirt.py

@@ -153,20 +153,18 @@ def parse_db_conf(self):
         return False
 
     def collect_database(self):
+        plugin = 'postgresql'
         sos_opt = (
-                   '-k {plugin}.dbname={db} '
-                   '-k {plugin}.dbhost={dbhost} '
-                   '-k {plugin}.dbport={dbport} '
-                   '-k {plugin}.username={dbuser} '
-                   ).format(plugin='postgresql',
-                            db=self.conf['ENGINE_DB_DATABASE'],
-                            dbhost=self.conf['ENGINE_DB_HOST'],
-                            dbport=self.conf['ENGINE_DB_PORT'],
-                            dbuser=self.conf['ENGINE_DB_USER']
-                            )
-        cmd = ('PGPASSWORD={} /usr/sbin/sosreport --name=postgresql '
-               '--batch -o postgresql {}'
-               ).format(self.conf['ENGINE_DB_PASSWORD'], sos_opt)
+            f"-k {plugin}.dbname={self.conf['ENGINE_DB_DATABASE']} "
+            f"-k {plugin}.dbhost={self.conf['ENGINE_DB_HOST']} "
+            f"-k {plugin}.dbport={self.conf['ENGINE_DB_PORT']} "
+            f"-k {plugin}.dbuser={self.conf['ENGINE_DB_USER']}"
+        )
+
+        cmd = (
+            f"PGPASSWORD={self.conf['ENGINE_DB_PASSWORD']} /usr/sbin/sos "
+            f"report --name=postgresql --batch -o postgresql {sos_opt}"
+        )
         db_sos = self.exec_primary_cmd(cmd, need_root=True)
         for line in db_sos['output'].splitlines():
             if fnmatch.fnmatch(line, '*sosreport-*tar*'):

sos/collector/clusters/saltstack.py

@@ -46,14 +46,16 @@ def _parse_manage_status(self, output: str) -> list:
 
     def _get_hostnames_from_grain(self, manage_status: dict) -> list:
         hostnames = []
-        fqdn_cmd = "salt --out=newline_values_only {minion} grains.get fqdn"
         for status, minions in manage_status.items():
             if status == "down":
                 self.log_warn(f"Node(s) {minions} are status down.")
                 hostnames.extend(minions)
             else:
                 for minion in minions:
-                    node_cmd = fqdn_cmd.format(minion=minion)
+                    node_cmd = (
+                        f"salt --out=newline_values_only {minion} "
+                        f"grains.get fqdn"
+                    )
                     hostnames.append(
                         self.exec_primary_cmd(node_cmd)["output"].strip()
                     )

sos/collector/sosnode.py

@@ -135,7 +135,7 @@ def _load_remote_transport(self, commons):
         return SSHControlPersist(self.address, commons)
 
     def _fmt_msg(self, msg):
-        return '{:<{}} : {}'.format(self._hostname, self.hostlen + 1, msg)
+        return f"{self._hostname:<{self.hostlen + 1}} : {msg}"
 
     @property
     def env_vars(self):

sos/collector/transports/__init__.py

@@ -134,7 +134,7 @@ def display_self_help(cls, section):
             _sec = bold("collect.transports.%s" % transport)
             _desc = "The '%s' transport" % transport.lower()
             section.add_text(
-                "{:>8}{:<45}{:<30}".format(' ', _sec, _desc),
+                f"{' ':>8}{_sec:<45}{_desc:<30}",
                 newline=False
             )
 

sos/help/__init__.py

@@ -211,7 +211,7 @@ def display_self_help(self):
 
         for sect in sections:
             avail_help.add_text(
-                "\t{:<36}{}".format(bold(sect), sections[sect]),
+                f"\t{bold(sect):<36}{sections[sect]}",
                 newline=False
             )
 

sos/policies/__init__.py

@@ -242,24 +242,17 @@ def get_archive_name(self):
         rand = ''.join(random.choice(string.ascii_lowercase) for x in range(7))
 
         if self.name_pattern == 'legacy':
-            nstr = "sosreport-{name}{case}{date}"
             case = '.' + case if case else ''
             date = '-%Y%m%d%H%M%S'
+            nstr = f"sosreport-{name}{case}{date}"
         elif self.name_pattern == 'friendly':
-            nstr = "sosreport-{name}{label}{case}{date}-{rand}"
             case = '-' + case if case else ''
             label = '-' + label if label else ''
             date = '-%Y-%m-%d'
+            nstr = f"sosreport-{name}{label}{case}{date}-{rand}"
         else:
             nstr = self.name_pattern
 
-        nstr = nstr.format(
-            name=name,
-            label=label,
-            case=case,
-            date=date,
-            rand=rand
-        )
         return self.sanitize_filename(time.strftime(nstr))
 
     # for some specific binaries like "xz", we need to determine package
@@ -409,8 +402,10 @@ def display_help(self, section):
             "For more information on distribution policies, see below\n"
         )
         for pol in pols:
-            seealso.add_text("{:>8}{:<20}{:<30}".format(' ', pol, pols[pol]),
-                             newline=False)
+            seealso.add_text(
+                f"{' ':>8}{pol:<20}{pols[pol]:<30}",
+                newline=False
+            )
 
     def display_results(self, archive, directory, checksum, archivestat=None,
                         map_file=None):
@@ -501,10 +496,9 @@ def _fmt_vendor_urls(self):
         :rtype:     ``str``
         """
         width = max([len(v[0]) for v in self.vendor_urls])
-        return "\n".join("\t{desc:<{width}} : {url}".format(
-                         desc=u[0], width=width, url=u[1])
-                         for u in self.vendor_urls
-                         )
+        return "\n".join(
+            f"\t{url[0]:<{width}} : {url[1]}" for url in self.vendor_urls
+        )
 
     def register_presets(self, presets, replace=False):
         """Add new presets to this policy object.

sos/policies/distros/__init__.py

@@ -199,27 +199,21 @@ def display_distro_help(cls, section):
 
         refsec = section.add_section('Reference URLs')
         for url in cls.vendor_urls:
-            refsec.add_text(
-                "{:>8}{:<30}{:<40}".format(' ', url[0], url[1]),
-                newline=False
-            )
+            refsec.add_text(f"{' ':>8}{url[0]:<30}{url[1]:<40}", newline=False)
 
         presec = section.add_section('Presets Available With This Policy\n')
         presec.add_text(
             bold(
-                "{:>8}{:<20}{:<45}{:<30}".format(' ', 'Preset Name',
-                                                 'Description',
-                                                 'Enabled Options')
+                f"{' ':>8}{'Preset Name':<20}{'Description':<45}"
+                f"{'Enabled Options':<30}"
             ),
             newline=False
         )
         for preset in _pol.presets:
             _preset = _pol.presets[preset]
             _opts = ' '.join(_preset.opts.to_args())
             presec.add_text(
-                "{:>8}{:<20}{:<45}{:<30}".format(
-                    ' ', preset, _preset.desc, _opts
-                ),
+                f"{' ':>8}{preset:<20}{_preset.desc:<45}{_opts:<30}",
                 newline=False
             )
 

sos/policies/distros/redhat.py

@@ -122,7 +122,7 @@ def display_distro_help(cls, section):
         for subc in subs:
             subln = bold("policies.%s" % subc)
             section.add_text(
-                "{:>8}{:<35}{:<30}".format(' ', subln, subs[subc].distro),
+                f"{' ':>8}{subln:<35}{subs[subc].distro:<30}",
                 newline=False
             )
 
@@ -563,18 +563,20 @@ def probe_preset(self):
         return self.find_preset(RHOCP)
 
     def create_sos_container(self, image=None, auth=None, force_pull=False):
-        _cmd = ("{runtime} run -di --name {name} --privileged --ipc=host"
-                " --net=host --pid=host -e HOST=/host -e NAME={name} -e "
-                "IMAGE={image} {pull} -v /run:/run -v /var/log:/var/log -v "
-                "/etc/machine-id:/etc/machine-id -v "
-                "/etc/localtime:/etc/localtime -v /:/host {auth} {image}")
         _image = image or self.container_image
         _pull = '--pull=always' if force_pull else ''
-        return _cmd.format(runtime=self.container_runtime,
-                           name=self.sos_container_name,
-                           image=_image,
-                           pull=_pull,
-                           auth=auth or '')
+        return (
+            f"{self.container_runtime} run -di "
+            f"--name {self.sos_container_name} --privileged --ipc=host "
+            f"--net=host --pid=host -e HOST=/host "
+            f"-e NAME={self.sos_container_name} -e "
+            f"IMAGE={_image} {_pull} "
+            f"-v /run:/run -v /var/log:/var/log "
+            f"-v /etc/machine-id:/etc/machine-id "
+            f"-v /etc/localtime:/etc/localtime "
+            f"-v /:/host "
+            f"{auth or ''} {_image}"
+        )
 
     def set_cleanup_cmd(self):
         return 'podman rm --force %s' % self.sos_container_name

sos/report/__init__.py

@@ -61,7 +61,7 @@ def _format_since(date):
     didn't. It's used in the _get_parser.
     This will also be a good place to add human readable and relative
     date parsing (like '2 days ago') in the future """
-    return datetime.strptime('{:<014s}'.format(date), '%Y%m%d%H%M%S')
+    return datetime.strptime(f"{date:<014s}", '%Y%m%d%H%M%S')
 
 
 # valid modes for --chroot
@@ -432,8 +432,7 @@ def display_help(cls, section):
         }
         helpln = ''
         for ln in help_lines:
-            ssec.add_text("\t{:<36}{}".format(ln, help_lines[ln]),
-                          newline=False)
+            ssec.add_text(f"\t{ln:<36}{help_lines[ln]}", newline=False)
         ssec.add_text(helpln)
 
     def print_header(self):

sos/report/plugins/__init__.py

@@ -844,10 +844,10 @@ def display_plugin_help(cls, section):
             "These options may be toggled or changed using '%s'"
             % bold("-k %s.option_name=$value" % cls.plugin_name)
         )
-        optsec.add_text(bold(
-            "\n{:<4}{:<20}{:<30}{:<20}\n".format(
-                ' ', "Option Name", "Default", "Description")
-            ), newline=False
+        optsec.add_text(
+            bold((f"\n{' ':<4}{'Option Name':<20}{'Default':<30}"
+                  f"{'Description':<20}")),
+            newline=False
         )
 
         opt_indent = ' ' * 54
@@ -861,8 +861,7 @@ def display_plugin_help(cls, section):
                     _def = "True/On"
                 else:
                     _def = "False/Off"
-            _ln = "{:<4}{:<20}{:<30}{:<20}".format(' ', opt.name, _def,
-                                                   opt.desc)
+            _ln = f"{' ':<4}{opt.name:<20}{_def:<30}{opt.desc:<20}"
             optsec.add_text(
                 textwrap.fill(_ln, width=TERMSIZE,
                               subsequent_indent=opt_indent),
@@ -932,7 +931,7 @@ def display_self_help(cls, section):
         seealso.add_text(
             "Additional relevant information may be available in these "
             "help sections:\n\n%s" % "\n".join(
-                "{:>8}{:<30}{:<30}".format(' ', sec, desc)
+                f"{' ':>8}{sec:<30}{desc:<30}"
                 for sec, desc in _also.items()
             ), newline=False
         )

sos/report/plugins/apt.py

@@ -41,7 +41,7 @@ def setup(self):
         pkg_list = ' '.join(
             [v.split('\t')[0] for v in dpkg_output if 'ok installed' in v])
         self.add_cmd_output(
-            "apt-cache policy {}".format(pkg_list),
+            f"apt-cache policy {pkg_list}",
             suggest_filename="apt-cache_policy_details"
         )