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 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 " + `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 " + `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 " + `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 " + `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 " + `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 " + `getcwd()` + " to " + `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 " + `env['RELAX_PATH']` + ".\n\n") 
 97   
 98          # All other errors (print normal python error message). 
 99          else: 
100              sys.stderr.write("OSError: [Errno " + `message.errno` + "] " + message.strerror + ": " + `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 " + `env['RELAX_PATH'] + sep + 'relax'` + " to " + `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 "\nRunning relax to create the byte-compiled *.pyc files." 
116      system(env['SYMLINK'] + " --test") 
117   
118      # Final print out. 
119      print "\n\n\n" 
120   
121   
122 -def uninstall(target, source, env): 
123      """relax deinstallation function (a Builder action).""" 
124   
125      # Print out. 
126      ############ 
127   
128      print 
129      print "######################" 
130      print "# Uninstalling relax #" 
131      print "######################\n\n" 
132      print "Uninstalling the program relax from the directory " + `env['INSTALL_PATH']` + "\n\n" 
133   
134   
135      # Tests. 
136      ######## 
137   
138      # Test that the installation path exists. 
139      if not access(env['INSTALL_PATH'], F_OK): 
140          sys.stderr.write("Cannot uninstall relax, the installation path " + `env['INSTALL_PATH']` + " does not exist.\n\n") 
141          return 
142   
143      # Test if the binary directory already exists. 
144      if not access(env['BIN_PATH'], F_OK): 
145          sys.stderr.write("Cannot uninstall relax, the directory " + `env['BIN_PATH']` + " does not exist.\n\n") 
146          return 
147   
148      # Test if the relax installation directory exists. 
149      if not access(env['RELAX_PATH'], F_OK): 
150          sys.stderr.write("Cannot uninstall relax, the directory " + `env['RELAX_PATH']` + " does not exist.\n\n") 
151          return 
152   
153      # Test if the symlink exists. 
154      if env['SYMLINK_FLAG']: 
155          try: 
156              lstat(env['SYMLINK']) 
157          except OSError: 
158              sys.stderr.write("Cannot uninstall relax, the file " + `env['SYMLINK']` + " does not exist.\n\n") 
159              return 
160   
161   
162      # Uninstall. 
163      ############ 
164   
165      # Remove the symbolic link. 
166      if env['SYMLINK_FLAG']: 
167          print "\nRemoving the symbolic link " + `env['SYMLINK']` + "." 
168          remove(env['SYMLINK']) 
169   
170      # Remove the directory. 
171      print "\nRemoving the entire directory " + `env['RELAX_PATH']` + ".\n" 
172      for root, dirs, files in walk(env['RELAX_PATH'], topdown=False): 
173          for file in files: 
174              remove(path.join(root, file)) 
175          for file in dirs: 
176              rmdir(path.join(root, file)) 
177      rmdir(env['RELAX_PATH']) 
178   
179      # Final print out. 
180      print "\n\n\n" 
181