Source Code for Module scons.install

  1  #! /usr/bin/python 
  2  # That line was just so programs like gvim or emacs will understand that this is Python code!  Don't 
  3  # make this file executable. 
  4   
  5  ############################################################################### 
  6  #                                                                             # 
  7  # Copyright (C) 2006-2012 Edward d'Auvergne                                   # 
  8  #                                                                             # 
  9  # This file is part of the program relax.                                     # 
 10  #                                                                             # 
 11  # relax is free software; you can redistribute it and/or modify               # 
 12  # it under the terms of the GNU General Public License as published by        # 
 13  # the Free Software Foundation; either version 2 of the License, or           # 
 14  # (at your option) any later version.                                         # 
 15  #                                                                             # 
 16  # relax is distributed in the hope that it will be useful,                    # 
 17  # but WITHOUT ANY WARRANTY; without even the implied warranty of              # 
 18  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               # 
 19  # GNU General Public License for more details.                                # 
 20  #                                                                             # 
 21  # You should have received a copy of the GNU General Public License           # 
 22  # along with relax; if not, write to the Free Software                        # 
 23  # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA   # 
 24  #                                                                             # 
 25  ############################################################################### 
 26   
 27   
 28  # Import statements. 
 29  from os import F_OK, access, getcwd, path, remove, rmdir, sep, system, walk 
 30  from shutil import copytree 
 31  import sys 
 32   
 33  # UNIX only functions from the os module. 
 34  try: 
 35      from os import lstat, symlink 
 36  except ImportError: 
 37      pass 
 38   
 39   
 40 -def install(target, source, env): 
 41      """relax installation function (a Builder action).""" 
 42   
 43      # Print out. 
 44      ############ 
 45   
 46      print('') 
 47      print("####################") 
 48      print("# Installing relax #") 
 49      print("####################\n\n") 
 50      print(("Installing the program relax into the directory " + repr(env['RELAX_PATH']) + "\n\n")) 
 51   
 52   
 53      # Tests. 
 54      ######## 
 55   
 56      # Test that the installation path exists. 
 57      if not access(env['INSTALL_PATH'], F_OK): 
 58          sys.stderr.write("Cannot install relax, the installation path " + repr(env['INSTALL_PATH']) + " does not exist.\n\n") 
 59          return 
 60   
 61      # Test if the binary directory already exists. 
 62      if not access(env['BIN_PATH'], F_OK): 
 63          sys.stderr.write("Cannot install relax, the directory " + repr(env['BIN_PATH']) + " does not exist.\n\n") 
 64          return 
 65   
 66      # Test if the relax installation directory already exists. 
 67      if access(env['RELAX_PATH'], F_OK): 
 68          sys.stderr.write("Cannot install relax, the directory " + repr(env['RELAX_PATH']) + " already exists.\n\n") 
 69          return 
 70   
 71      # Test if the symlink exists. 
 72      if env['SYMLINK_FLAG']: 
 73          try: 
 74              lstat(env['SYMLINK']) 
 75          except OSError: 
 76              # OK, symlink doesn't exist. 
 77              pass 
 78          else: 
 79              sys.stderr.write("Cannot install relax, the file " + repr(env['SYMLINK']) + " already exists.\n\n") 
 80              return 
 81   
 82   
 83      # Install. 
 84      ########## 
 85   
 86      # Copy the files (and create the directory). 
 87      try: 
 88          print(("\nCopying all files in " + repr(getcwd()) + " to " + repr(env['RELAX_PATH']) + ".")) 
 89          copytree(getcwd(), env['RELAX_PATH']) 
 90      except OSError, message: 
 91          # Failure message. 
 92          sys.stderr.write("Cannot install relax, " + message.__doc__ + "\n") 
 93   
 94          # You don't have the privilages to do this. 
 95          if message.errno == 13: 
 96              sys.stderr.write("Permission denied, cannot create the directory " + repr(env['RELAX_PATH']) + ".\n\n") 
 97   
 98          # All other errors (print normal python error message). 
 99          else: 
100              sys.stderr.write("OSError: [Errno " + repr(message.errno) + "] " + message.strerror + ": " + repr(message.filename) + "\n\n") 
101   
102          # Quit the function. 
103          return 
104   
105      # Create the symbolic link. 
106      if env['SYMLINK_FLAG']: 
107          print(("\nCreating the symbolic link from " + repr(env['RELAX_PATH'] + sep + 'relax') + " to " + repr(env['SYMLINK']) + ".")) 
108          symlink(env['RELAX_PATH'] + sep + 'relax', env['SYMLINK']) 
109   
110   
111      # Byte compile. 
112      ############### 
113   
114      # Run relax to create the *.pyc files. 
115      print("\nCreating the byte-compiled *.pyc files.") 
116      python_path = sys.prefix + path.sep + 'bin' + path.sep + 'python' + `sys.version_info[0]` + '.' + `sys.version_info[1]` 
117      cmd = "cd %s; %s -m compileall . ; %s -O -m compileall ." % (env['RELAX_PATH'], python_path, python_path) 
118      print(cmd) 
119      system(cmd) 
120   
121      # Final printout. 
122      print("\n\n\n") 
123   
124   
125 -def uninstall(target, source, env): 
126      """relax deinstallation function (a Builder action).""" 
127   
128      # Print out. 
129      ############ 
130   
131      print('') 
132      print("######################") 
133      print("# Uninstalling relax #") 
134      print("######################\n\n") 
135      print(("Uninstalling the program relax from the directory " + repr(env['INSTALL_PATH']) + "\n\n")) 
136   
137   
138      # Tests. 
139      ######## 
140   
141      # Test that the installation path exists. 
142      if not access(env['INSTALL_PATH'], F_OK): 
143          sys.stderr.write("Cannot uninstall relax, the installation path " + repr(env['INSTALL_PATH']) + " does not exist.\n\n") 
144          return 
145   
146      # Test if the binary directory already exists. 
147      if not access(env['BIN_PATH'], F_OK): 
148          sys.stderr.write("Cannot uninstall relax, the directory " + repr(env['BIN_PATH']) + " does not exist.\n\n") 
149          return 
150   
151      # Test if the relax installation directory exists. 
152      if not access(env['RELAX_PATH'], F_OK): 
153          sys.stderr.write("Cannot uninstall relax, the directory " + repr(env['RELAX_PATH']) + " does not exist.\n\n") 
154          return 
155   
156      # Test if the symlink exists. 
157      if env['SYMLINK_FLAG']: 
158          try: 
159              lstat(env['SYMLINK']) 
160          except OSError: 
161              sys.stderr.write("Cannot uninstall relax, the file " + repr(env['SYMLINK']) + " does not exist.\n\n") 
162              return 
163   
164   
165      # Uninstall. 
166      ############ 
167   
168      # Remove the symbolic link. 
169      if env['SYMLINK_FLAG']: 
170          print(("\nRemoving the symbolic link " + repr(env['SYMLINK']) + ".")) 
171          remove(env['SYMLINK']) 
172   
173      # Remove the directory. 
174      print(("\nRemoving the entire directory " + repr(env['RELAX_PATH']) + ".\n")) 
175      for root, dirs, files in walk(env['RELAX_PATH'], topdown=False): 
176          for file in files: 
177              remove(path.join(root, file)) 
178          for file in dirs: 
179              rmdir(path.join(root, file)) 
180      rmdir(env['RELAX_PATH']) 
181   
182      # Final printout. 
183      print("\n\n\n") 
184