#!/usr/bin/env python3 # Author: David Bekaert # Zhang Yunjun, adopted from prepRawALOS.py for ALOS2 SM SLC import os import glob import argparse import shutil import tarfile import zipfile from uncompressFile import uncompressfile def createParser(): ''' Create command line parser. ''' parser = argparse.ArgumentParser(description='Prepare ALOS2 SLC for processing (unzip/untar files, ' 'organize in date folders, generate script to unpack into isce formats).') parser.add_argument('-i', '--input', dest='inputDir', type=str, required=True, help='directory with the downloaded SLC data') parser.add_argument('-o', '--output', dest='outputDir', type=str, required=False, help='output directory where data needs to be unpacked into isce format (for script generation).') parser.add_argument('-t', '--text_cmd', dest='text_cmd', type=str, default='source ~/.bash_profile;', help='text command to be added to the beginning of each line of the run files (default: %(default)s).') parser.add_argument('-p', '--polarization', dest='polarization', type=str, help='polarization in case if quad or full pol data exists (default: %(default)s).') parser.add_argument('-rmfile', '--rmfile', dest='rmfile',action='store_true', default=False, help='Optional: remove zip/tar/compressed files after unpacking into date structure ' '(default is to keep in archive folder)') return parser def cmdLineParse(iargs=None): ''' Command line parser. ''' parser = createParser() inps = parser.parse_args(args = iargs) # parsing required inputs inps.inputDir = os.path.abspath(inps.inputDir) # parsing optional inputs if inps.outputDir: inps.outputDir = os.path.abspath(inps.outputDir) return inps def get_Date(ALOS_folder): """Grab acquisition date""" # will search for different version of workreport to be compatible with ASf, WInSAR etc workreport_files = ('*workreport','summary.txt') for workreport_file in workreport_files: workreports = glob.glob(os.path.join(ALOS_folder,workreport_file)) # if nothing is found return a failure if len(workreports) > 0: for workreport in workreports: template_dict = {} with open(workreport) as openfile: for line in openfile: c = line.split("=") template_dict[c[0].strip()] = c[1].strip() acquisitionDate = (str(template_dict['Img_SceneCenterDateTime'][1:9])) if acquisitionDate: successflag = True return successflag, acquisitionDate # if it reached here it could not find the acqusiitionDate successflag = False acquisitionDate = 'FAIL' return successflag, acquisitionDate def get_ALOS2_name(infile): """Get the ALOS2210402970 name from compress file in various format.""" outname = None fbase = os.path.basename(infile) if 'ALOS2' in fbase: fbase = fbase.replace('_','-') outname = [i for i in fbase.split('-') if 'ALOS2' in i][0] else: fext = os.path.splitext(infile)[1] if fext in ['.tar', '.gz']: with tarfile.open(infile, 'r') as tar: file_list = tar.getnames() elif fext in ['.zip']: with zipfile.ZipFile(infile, 'r') as z: file_list = z.namelist() else: raise ValueError('unrecognized file extension: {}'.format(fext)) led_file = [i for i in file_list if 'LED' in i][0] led_file = os.path.basename(led_file) outname = [i for i in led_file.split('-') if 'ALOS2' in i][0] return outname def main(iargs=None): ''' The main driver. ''' inps = cmdLineParse(iargs) # filename of the runfile run_unPack = 'run_unPackALOS2' # loop over the different folder of ALOS2 zip/tar files and unzip them, make the names consistent file_exts = (os.path.join(inps.inputDir, '*.zip'), os.path.join(inps.inputDir, '*.tar'), os.path.join(inps.inputDir, '*.gz')) for file_ext in file_exts: # loop over zip/tar files for fname in sorted(glob.glob(file_ext)): ## the path to the folder/zip workdir = os.path.dirname(fname) ## get the output name folder without any extensions dir_unzip = get_ALOS2_name(fname) dir_unzip = os.path.join(workdir, dir_unzip) # loop over two cases (either file or folder): # if this is a file, try to unzip/untar it if os.path.isfile(fname): # unzip the file in the outfolder successflag_unzip = uncompressfile(fname, dir_unzip) # put failed files in a seperate directory if not successflag_unzip: dir_failed = os.path.join(workdir,'FAILED_FILES') os.makedirs(dir_failed, exist_ok=True) cmd = 'mv {} {}'.format(fname, dir_failed) os.system(cmd) else: # check if file needs to be removed or put in archive folder if inps.rmfile: os.remove(fname) print('Deleting: ' + fname) else: dir_archive = os.path.join(workdir,'ARCHIVED_FILES') os.makedirs(dir_archive, exist_ok=True) cmd = 'mv {} {}'.format(fname, dir_archive) os.system(cmd) # loop over the different ALOS folders and make sure the folder names are consistent. # this step is not needed unless the user has manually unzipped data before. ALOS_folders = glob.glob(os.path.join(inps.inputDir, 'ALOS2*')) for ALOS_folder in ALOS_folders: # in case the user has already unzipped some files # make sure they are unzipped similar like the uncompressfile code temp = os.path.basename(ALOS_folder) parts = temp.split(".") parts = parts[0].split('-') ALOS_outfolder_temp = parts[0] ALOS_outfolder_temp = os.path.join(os.path.dirname(ALOS_folder),ALOS_outfolder_temp) # check if the folder (ALOS_folder) has a different filename as generated from uncompressFile (ALOS_outfolder_temp) if not (ALOS_outfolder_temp == ALOS_folder): # it is different, check if the ALOS_outfolder_temp already exists, if yes, delete the current folder if os.path.isdir(ALOS_outfolder_temp): print('Remove ' + ALOS_folder + ' as ' + ALOS_outfolder_temp + ' exists...') # check if this folder already exist, if so overwrite it shutil.rmtree(ALOS_folder) # loop over the different ALOS folders and organize in date folders ALOS_folders = glob.glob(os.path.join(inps.inputDir, 'ALOS2*')) for ALOS_folder in ALOS_folders: # get the date successflag, imgDate = get_Date(ALOS_folder) workdir = os.path.dirname(ALOS_folder) if successflag: # move the file into the date folder SLC_dir = os.path.join(workdir,imgDate,'') os.makedirs(SLC_dir, exist_ok=True) # check if the folder already exist in that case overwrite it ALOS_folder_out = os.path.join(SLC_dir,os.path.basename(ALOS_folder)) if os.path.isdir(ALOS_folder_out): shutil.rmtree(ALOS_folder_out) # move the ALOS acqusition folder in the date folder cmd = 'mv ' + ALOS_folder + ' ' + SLC_dir + '.' os.system(cmd) print ('Succes: ' + imgDate) else: print('Failed: ' + ALOS_folder) # now generate the unpacking script for all the date dirs dateDirs = sorted(glob.glob(os.path.join(inps.inputDir,'2*'))) if inps.outputDir is not None: f = open(run_unPack,'w') for dateDir in dateDirs: AlosFiles = glob.glob(os.path.join(dateDir, 'ALOS2*')) # if there is at least one frame if len(AlosFiles)>0: acquisitionDate = os.path.basename(dateDir) slcDir = os.path.join(inps.outputDir, acquisitionDate) os.makedirs(slcDir, exist_ok=True) cmd = 'unpackFrame_ALOS2.py -i ' + os.path.abspath(dateDir) + ' -o ' + slcDir if inps.polarization: cmd += ' --polarization {} '.format(inps.polarization) print (cmd) f.write(inps.text_cmd + cmd+'\n') f.close() return if __name__ == '__main__': main()