diff options
Diffstat (limited to 'loader.py')
| -rw-r--r--[-rwxr-xr-x] | loader.py | 60 |
1 files changed, 56 insertions, 4 deletions
diff --git a/loader.py b/loader.py index 11005a8..b00fd08 100755..100644 --- a/loader.py +++ b/loader.py @@ -1,4 +1,14 @@ #!/usr/bin/env python3 +"""-------------------------------------------------------------------loader.py +Summary: This is a minimal dialog based image loader for tizen images. +Author: Donald Delmar Davis ddavis3@jaguarlandrover.com + +Assumptions: +Images are being moved to and from /dev/sda1 +Images are stored on depot in /home/public/images +Images are 4M raw files. + +----------------------------------------------------------------------------""" from dialog import Dialog from threading import Thread @@ -8,8 +18,11 @@ import contextlib import time -#http://blog.thelinuxkid.com/2013/06/get-python-subprocess-output-without.html def read_stderr_realtime(proc, stream='stderr'): + """ + do not let python buffer our status stream. + See: http://blog.thelinuxkid.com/2013/06/get-python-subprocess-output-without.html + """ newlines = ['\n', '\r\n', '\r'] stream = getattr(proc, stream) with contextlib.closing(stream): @@ -28,7 +41,12 @@ def read_stderr_realtime(proc, stream='stderr'): out = ''.join(out) yield out + def check_environment(d): + """ + do some rudimentry environment checks. + """ + d.set_background_title("Checking your environment") try: @@ -57,7 +75,13 @@ def check_environment(d): d.msgbox("Please contact your system administrator") sys.exit(1) + + def main_menu(d): + """ + fron end menu + """ + d.set_background_title("OSTC Image Loader") code, tag = d.menu("Select Action Below", choices=[("load","Load new disk image from depot"), @@ -67,7 +91,12 @@ def main_menu(d): return tag + def select_file_for_read(d,directory): + """ + do a little checking before accepting selection + """ + while True: code, selection = d.fselect(directory,10,70) if code==d.OK: @@ -79,7 +108,12 @@ def select_file_for_read(d,directory): return code, selection + def load_image(d): + """ + load a raw image onto the disk. Reboot if successful + """ + d.set_background_title("Select file to load.....") code, selection = select_file_for_read(d,'/mnt/images/') @@ -139,7 +173,13 @@ def load_image(d): sys.exit(2) + def select_file_for_write(d,directory): + """ + Do some checks before we write our file. + TODO: add warning if overwriting a file + """ + while True: code, selection = d.fselect(directory,10,70) if code==d.OK: @@ -154,7 +194,11 @@ def select_file_for_write(d,directory): def archive_image(d): - d.set_background_title("Select archive image.....") + """ + save image of disk to archive directory. + """ + + d.set_background_title("Select archive filename.....") code, selection = select_file_for_write(d,'/mnt/images/archive/') @@ -175,9 +219,10 @@ def archive_image(d): stdout=output, stderr=subprocess.PIPE, universal_newlines=True, + shell=True ) - d.set_background_title("archiving to:" +selection) + d.set_background_title("Archiving to:" +selection) d.gauge_start("Progress",10,70,0) for line in read_stderr_realtime(proc): @@ -212,7 +257,14 @@ def archive_image(d): d.set_background_title("Cancelled") d.msgbox("Have A Nice Day") sys.exit(2) - + + +"""------------------------------------------------------------------------main + +TODO: should go from archive to load + +----------------------------------------------------------------------------""" + d = Dialog(dialog="dialog") check_environment(d) while True: |