[content/test/gpu] Run pylint check of gpu tests in unittest instead of PRESUBMIT

third_party/pylint/pylint/gui.py

Index: third_party/pylint/pylint/gui.py
diff --git a/third_party/pylint/pylint/gui.py b/third_party/pylint/pylint/gui.py
new file mode 100644
index 0000000000000000000000000000000000000000..9c9b13893532ac41f754b7ba2db516868b35f365
--- /dev/null
+++ b/third_party/pylint/pylint/gui.py
@@ -0,0 +1,531 @@
+# Copyright (c) 2003-2013 LOGILAB S.A. (Paris, FRANCE).
+# http://www.logilab.fr/ -- mailto:contact@logilab.fr
+#
+# This program is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free Software
+# Foundation; either version 2 of the License, or (at your option) any later
+# version.
+#
+# This program is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details
+#
+# You should have received a copy of the GNU General Public License along with
+# this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+"""Tkinker gui for pylint"""
+from __future__ import print_function
+
+import os
+import sys
+import re
+from threading import Thread
+
+import six
+
+from six.moves.tkinter import (
+    Tk, Frame, Listbox, Entry, Label, Button, Scrollbar,
+    Checkbutton, Radiobutton, IntVar, StringVar, PanedWindow,
+    TOP, LEFT, RIGHT, BOTTOM, END, X, Y, BOTH, SUNKEN, W,
+    HORIZONTAL, DISABLED, NORMAL, W,
+)
+from six.moves.tkinter_tkfiledialog import (
+    askopenfilename, askdirectory,
+)
+
+import pylint.lint
+from pylint.reporters.guireporter import GUIReporter
+
+HOME = os.path.expanduser('~/')
+HISTORY = '.pylint-gui-history'
+COLORS = {'(I)':'lightblue',
+          '(C)':'blue', '(R)':'darkblue',
+          '(W)':'black', '(E)':'darkred',
+          '(F)':'red'}
+
+
+def convert_to_string(msg):
+    """make a string representation of a message"""
+    module_object = msg.module
+    if msg.obj:
+        module_object += ".%s" % msg.obj
+    return "(%s) %s [%d]: %s" % (msg.C, module_object, msg.line, msg.msg)
+
+class BasicStream(object):
+    '''
+    used in gui reporter instead of writing to stdout, it is written to
+    this stream and saved in contents
+    '''
+    def __init__(self, gui):
+        """init"""
+        self.curline = ""
+        self.gui = gui
+        self.contents = []
+        self.outdict = {}
+        self.currout = None
+        self.next_title = None
+
+    def write(self, text):
+        """write text to the stream"""
+        if re.match('^--+$', text.strip()) or re.match('^==+$', text.strip()):
+            if self.currout:
+                self.outdict[self.currout].remove(self.next_title)
+                self.outdict[self.currout].pop()
+            self.currout = self.next_title
+            self.outdict[self.currout] = ['']
+
+        if text.strip():
+            self.next_title = text.strip()
+
+        if text.startswith(os.linesep):
+            self.contents.append('')
+            if self.currout:
+                self.outdict[self.currout].append('')
+        self.contents[-1] += text.strip(os.linesep)
+        if self.currout:
+            self.outdict[self.currout][-1] += text.strip(os.linesep)
+        if text.endswith(os.linesep) and text.strip():
+            self.contents.append('')
+            if self.currout:
+                self.outdict[self.currout].append('')
+
+    def fix_contents(self):
+        """finalize what the contents of the dict should look like before output"""
+        for item in self.outdict:
+            num_empty = self.outdict[item].count('')
+            for _ in range(num_empty):
+                self.outdict[item].remove('')
+            if self.outdict[item]:
+                self.outdict[item].pop(0)
+
+    def output_contents(self):
+        """output contents of dict to the gui, and set the rating"""
+        self.fix_contents()
+        self.gui.tabs = self.outdict
+        try:
+            self.gui.rating.set(self.outdict['Global evaluation'][0])
+        except KeyError:
+            self.gui.rating.set('Error')
+        self.gui.refresh_results_window()
+
+        #reset stream variables for next run
+        self.contents = []
+        self.outdict = {}
+        self.currout = None
+        self.next_title = None
+
+
+class LintGui(object):
+    """Build and control a window to interact with pylint"""
+
+    def __init__(self, root=None):
+        """init"""
+        self.root = root or Tk()
+        self.root.title('Pylint')
+        #reporter
+        self.reporter = None
+        #message queue for output from reporter
+        self.msg_queue = six.moves.queue.Queue()
+        self.msgs = []
+        self.visible_msgs = []
+        self.filenames = []
+        self.rating = StringVar()
+        self.tabs = {}
+        self.report_stream = BasicStream(self)
+        #gui objects
+        self.lb_messages = None
+        self.showhistory = None
+        self.results = None
+        self.btnRun = None
+        self.information_box = None
+        self.convention_box = None
+        self.refactor_box = None
+        self.warning_box = None
+        self.error_box = None
+        self.fatal_box = None
+        self.txtModule = None
+        self.status = None
+        self.msg_type_dict = None
+        self.init_gui()
+
+    def init_gui(self):
+        """init helper"""
+
+        window = PanedWindow(self.root, orient="vertical")
+        window.pack(side=TOP, fill=BOTH, expand=True)
+
+        top_pane = Frame(window)
+        window.add(top_pane)
+        mid_pane = Frame(window)
+        window.add(mid_pane)
+        bottom_pane = Frame(window)
+        window.add(bottom_pane)
+
+        #setting up frames
+        top_frame = Frame(top_pane)
+        mid_frame = Frame(top_pane)
+        history_frame = Frame(top_pane)
+        radio_frame = Frame(mid_pane)
+        rating_frame = Frame(mid_pane)
+        res_frame = Frame(mid_pane)
+        check_frame = Frame(bottom_pane)
+        msg_frame = Frame(bottom_pane)
+        btn_frame = Frame(bottom_pane)
+        top_frame.pack(side=TOP, fill=X)
+        mid_frame.pack(side=TOP, fill=X)
+        history_frame.pack(side=TOP, fill=BOTH, expand=True)
+        radio_frame.pack(side=TOP, fill=X)
+        rating_frame.pack(side=TOP, fill=X)
+        res_frame.pack(side=TOP, fill=BOTH, expand=True)
+        check_frame.pack(side=TOP, fill=X)
+        msg_frame.pack(side=TOP, fill=BOTH, expand=True)
+        btn_frame.pack(side=TOP, fill=X)
+
+        # Binding F5 application-wide to run lint
+        self.root.bind('<F5>', self.run_lint)
+
+        #Message ListBox
+        rightscrollbar = Scrollbar(msg_frame)
+        rightscrollbar.pack(side=RIGHT, fill=Y)
+        bottomscrollbar = Scrollbar(msg_frame, orient=HORIZONTAL)
+        bottomscrollbar.pack(side=BOTTOM, fill=X)
+        self.lb_messages = Listbox(
+            msg_frame,
+            yscrollcommand=rightscrollbar.set,
+            xscrollcommand=bottomscrollbar.set,
+            bg="white")
+        self.lb_messages.bind("<Double-Button-1>", self.show_sourcefile)
+        self.lb_messages.pack(expand=True, fill=BOTH)
+        rightscrollbar.config(command=self.lb_messages.yview)
+        bottomscrollbar.config(command=self.lb_messages.xview)
+
+        #History ListBoxes
+        rightscrollbar2 = Scrollbar(history_frame)
+        rightscrollbar2.pack(side=RIGHT, fill=Y)
+        bottomscrollbar2 = Scrollbar(history_frame, orient=HORIZONTAL)
+        bottomscrollbar2.pack(side=BOTTOM, fill=X)
+        self.showhistory = Listbox(
+            history_frame,
+            yscrollcommand=rightscrollbar2.set,
+            xscrollcommand=bottomscrollbar2.set,
+            bg="white")
+        self.showhistory.pack(expand=True, fill=BOTH)
+        rightscrollbar2.config(command=self.showhistory.yview)
+        bottomscrollbar2.config(command=self.showhistory.xview)
+        self.showhistory.bind('<Double-Button-1>', self.select_recent_file)
+        self.set_history_window()
+
+        #status bar
+        self.status = Label(self.root, text="", bd=1, relief=SUNKEN, anchor=W)
+        self.status.pack(side=BOTTOM, fill=X)
+
+        #labelbl_ratingls
+        lbl_rating_label = Label(rating_frame, text='Rating:')
+        lbl_rating_label.pack(side=LEFT)
+        lbl_rating = Label(rating_frame, textvariable=self.rating)
+        lbl_rating.pack(side=LEFT)
+        Label(mid_frame, text='Recently Used:').pack(side=LEFT)
+        Label(top_frame, text='Module or package').pack(side=LEFT)
+
+        #file textbox
+        self.txt_module = Entry(top_frame, background='white')
+        self.txt_module.bind('<Return>', self.run_lint)
+        self.txt_module.pack(side=LEFT, expand=True, fill=X)
+
+        #results box
+        rightscrollbar = Scrollbar(res_frame)
+        rightscrollbar.pack(side=RIGHT, fill=Y)
+        bottomscrollbar = Scrollbar(res_frame, orient=HORIZONTAL)
+        bottomscrollbar.pack(side=BOTTOM, fill=X)
+        self.results = Listbox(
+            res_frame,
+            yscrollcommand=rightscrollbar.set,
+            xscrollcommand=bottomscrollbar.set,
+            bg="white", font="Courier")
+        self.results.pack(expand=True, fill=BOTH, side=BOTTOM)
+        rightscrollbar.config(command=self.results.yview)
+        bottomscrollbar.config(command=self.results.xview)
+
+        #buttons
+        Button(top_frame, text='Open', command=self.file_open).pack(side=LEFT)
+        Button(top_frame, text='Open Package',
+               command=(lambda: self.file_open(package=True))).pack(side=LEFT)
+
+        self.btnRun = Button(top_frame, text='Run', command=self.run_lint)
+        self.btnRun.pack(side=LEFT)
+        Button(btn_frame, text='Quit', command=self.quit).pack(side=BOTTOM)
+
+        #radio buttons
+        self.information_box = IntVar()
+        self.convention_box = IntVar()
+        self.refactor_box = IntVar()
+        self.warning_box = IntVar()
+        self.error_box = IntVar()
+        self.fatal_box = IntVar()
+        i = Checkbutton(check_frame, text="Information", fg=COLORS['(I)'],
+                        variable=self.information_box, command=self.refresh_msg_window)
+        c = Checkbutton(check_frame, text="Convention", fg=COLORS['(C)'],
+                        variable=self.convention_box, command=self.refresh_msg_window)
+        r = Checkbutton(check_frame, text="Refactor", fg=COLORS['(R)'],
+                        variable=self.refactor_box, command=self.refresh_msg_window)
+        w = Checkbutton(check_frame, text="Warning", fg=COLORS['(W)'],
+                        variable=self.warning_box, command=self.refresh_msg_window)
+        e = Checkbutton(check_frame, text="Error", fg=COLORS['(E)'],
+                        variable=self.error_box, command=self.refresh_msg_window)
+        f = Checkbutton(check_frame, text="Fatal", fg=COLORS['(F)'],
+                        variable=self.fatal_box, command=self.refresh_msg_window)
+        i.select()
+        c.select()
+        r.select()
+        w.select()
+        e.select()
+        f.select()
+        i.pack(side=LEFT)
+        c.pack(side=LEFT)
+        r.pack(side=LEFT)
+        w.pack(side=LEFT)
+        e.pack(side=LEFT)
+        f.pack(side=LEFT)
+
+        #check boxes
+        self.box = StringVar()
+        # XXX should be generated
+        report = Radiobutton(
+            radio_frame, text="Report", variable=self.box,
+            value="Report", command=self.refresh_results_window)
+        raw_met = Radiobutton(
+            radio_frame, text="Raw metrics", variable=self.box,
+            value="Raw metrics", command=self.refresh_results_window)
+        dup = Radiobutton(
+            radio_frame, text="Duplication", variable=self.box,
+            value="Duplication", command=self.refresh_results_window)
+        ext = Radiobutton(
+            radio_frame, text="External dependencies",
+            variable=self.box, value="External dependencies",
+            command=self.refresh_results_window)
+        stat = Radiobutton(
+            radio_frame, text="Statistics by type",
+            variable=self.box, value="Statistics by type",
+            command=self.refresh_results_window)
+        msg_cat = Radiobutton(
+            radio_frame, text="Messages by category",
+            variable=self.box, value="Messages by category",
+            command=self.refresh_results_window)
+        msg = Radiobutton(
+            radio_frame, text="Messages", variable=self.box,
+            value="Messages", command=self.refresh_results_window)
+        source_file = Radiobutton(
+            radio_frame, text="Source File", variable=self.box,
+            value="Source File", command=self.refresh_results_window)
+        report.select()
+        report.grid(column=0, row=0, sticky=W)
+        raw_met.grid(column=1, row=0, sticky=W)
+        dup.grid(column=2, row=0, sticky=W)
+        msg.grid(column=3, row=0, sticky=W)
+        stat.grid(column=0, row=1, sticky=W)
+        msg_cat.grid(column=1, row=1, sticky=W)
+        ext.grid(column=2, row=1, sticky=W)
+        source_file.grid(column=3, row=1, sticky=W)
+
+        #dictionary for check boxes and associated error term
+        self.msg_type_dict = {
+            'I': lambda: self.information_box.get() == 1,
+            'C': lambda: self.convention_box.get() == 1,
+            'R': lambda: self.refactor_box.get() == 1,
+            'E': lambda: self.error_box.get() == 1,
+            'W': lambda: self.warning_box.get() == 1,
+            'F': lambda: self.fatal_box.get() == 1
+        }
+        self.txt_module.focus_set()
+
+
+    def select_recent_file(self, event): # pylint: disable=unused-argument
+        """adds the selected file in the history listbox to the Module box"""
+        if not self.showhistory.size():
+            return
+
+        selected = self.showhistory.curselection()
+        item = self.showhistory.get(selected)
+        #update module
+        self.txt_module.delete(0, END)
+        self.txt_module.insert(0, item)
+
+    def refresh_msg_window(self):
+        """refresh the message window with current output"""
+        #clear the window
+        self.lb_messages.delete(0, END)
+        self.visible_msgs = []
+        for msg in self.msgs:
+            if self.msg_type_dict.get(msg.C)():
+                self.visible_msgs.append(msg)
+                msg_str = convert_to_string(msg)
+                self.lb_messages.insert(END, msg_str)
+                fg_color = COLORS.get(msg_str[:3], 'black')
+                self.lb_messages.itemconfigure(END, fg=fg_color)
+
+    def refresh_results_window(self):
+        """refresh the results window with current output"""
+        #clear the window
+        self.results.delete(0, END)
+        try:
+            for res in self.tabs[self.box.get()]:
+                self.results.insert(END, res)
+        except KeyError:
+            pass
+
+    def process_incoming(self):
+        """process the incoming messages from running pylint"""
+        while self.msg_queue.qsize():
+            try:
+                msg = self.msg_queue.get(0)
+                if msg == "DONE":
+                    self.report_stream.output_contents()
+                    return False
+
+                #adding message to list of msgs
+                self.msgs.append(msg)
+
+                #displaying msg if message type is selected in check box
+                if self.msg_type_dict.get(msg.C)():
+                    self.visible_msgs.append(msg)
+                    msg_str = convert_to_string(msg)
+                    self.lb_messages.insert(END, msg_str)
+                    fg_color = COLORS.get(msg_str[:3], 'black')
+                    self.lb_messages.itemconfigure(END, fg=fg_color)
+
+            except six.moves.queue.Empty:
+                pass
+        return True
+
+    def periodic_call(self):
+        """determine when to unlock the run button"""
+        if self.process_incoming():
+            self.root.after(100, self.periodic_call)
+        else:
+            #enabling button so it can be run again
+            self.btnRun.config(state=NORMAL)
+
+    def mainloop(self):
+        """launch the mainloop of the application"""
+        self.root.mainloop()
+
+    def quit(self, _=None):
+        """quit the application"""
+        self.root.quit()
+
+    def halt(self): # pylint: disable=no-self-use
+        """program halt placeholder"""
+        return
+
+    def file_open(self, package=False, _=None):
+        """launch a file browser"""
+        if not package:
+            filename = askopenfilename(parent=self.root,
+                                       filetypes=[('pythonfiles', '*.py'),
+                                                  ('allfiles', '*')],
+                                       title='Select Module')
+        else:
+            filename = askdirectory(title="Select A Folder", mustexist=1)
+
+        if filename == ():
+            return
+
+        self.txt_module.delete(0, END)
+        self.txt_module.insert(0, filename)
+
+    def update_filenames(self):
+        """update the list of recent filenames"""
+        filename = self.txt_module.get()
+        if not filename:
+            filename = os.getcwd()
+        if filename+'\n' in self.filenames:
+            index = self.filenames.index(filename+'\n')
+            self.filenames.pop(index)
+
+        #ensure only 10 most recent are stored
+        if len(self.filenames) == 10:
+            self.filenames.pop()
+        self.filenames.insert(0, filename+'\n')
+
+    def set_history_window(self):
+        """update the history window with info from the history file"""
+        #clear the window
+        self.showhistory.delete(0, END)
+        # keep the last 10 most recent files
+        try:
+            view_history = open(HOME+HISTORY, 'r')
+            for hist in view_history.readlines():
+                if not hist in self.filenames:
+                    self.filenames.append(hist)
+                self.showhistory.insert(END, hist.split('\n')[0])
+            view_history.close()
+        except IOError:
+            # do nothing since history file will be created later
+            return
+
+    def run_lint(self, _=None):
+        """launches pylint"""
+        self.update_filenames()
+        self.root.configure(cursor='watch')
+        self.reporter = GUIReporter(self, output=self.report_stream)
+        module = self.txt_module.get()
+        if not module:
+            module = os.getcwd()
+
+        #cleaning up msgs and windows
+        self.msgs = []
+        self.visible_msgs = []
+        self.lb_messages.delete(0, END)
+        self.tabs = {}
+        self.results.delete(0, END)
+        self.btnRun.config(state=DISABLED)
+
+        #setting up a worker thread to run pylint
+        worker = Thread(target=lint_thread, args=(module, self.reporter, self,))
+        self.periodic_call()
+        worker.start()
+
+        # Overwrite the .pylint-gui-history file with all the new recently added files
+        # in order from filenames but only save last 10 files
+        write_history = open(HOME+HISTORY, 'w')
+        write_history.writelines(self.filenames)
+        write_history.close()
+        self.set_history_window()
+
+        self.root.configure(cursor='')
+
+    def show_sourcefile(self, event=None):  # pylint: disable=unused-argument
+        selected = self.lb_messages.curselection()
+        if not selected:
+            return
+
+        msg = self.visible_msgs[int(selected[0])]
+        scroll = msg.line - 3
+        if scroll < 0:
+            scroll = 0
+
+        self.tabs["Source File"] = open(msg.path, "r").readlines()
+        self.box.set("Source File")
+        self.refresh_results_window()
+        self.results.yview(scroll)
+        self.results.select_set(msg.line - 1)
+
+
+def lint_thread(module, reporter, gui):
+    """thread for pylint"""
+    gui.status.text = "processing module(s)"
+    pylint.lint.Run(args=[module], reporter=reporter, exit=False)
+    gui.msg_queue.put("DONE")
+
+
+def Run(args):
+    """launch pylint gui from args"""
+    if args:
+        print('USAGE: pylint-gui\n launch a simple pylint gui using Tk')
+        sys.exit(1)
+    gui = LintGui()
+    gui.mainloop()
+    sys.exit(0)
+
+if __name__ == '__main__':
+    Run(sys.argv[1:])