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 (http://www.nmr-relax.com).          # 
 10  #                                                                             # 
 11  # This program 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 3 of the License, or           # 
 14  # (at your option) any later version.                                         # 
 15  #                                                                             # 
 16  # This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.       # 
 23  #                                                                             # 
 24  ############################################################################### 
 25   
 26   
 27  # Import statements. 
 28  from os import F_OK, access, getcwd, path, remove, rmdir, sep, system, walk 
 29  from shutil import copytree 
 30  import sys 
 31   
 32  # UNIX only functions from the os module. 
 33  try: 
 34      from os import lstat, symlink 
 35  except ImportError: 
 36      pass 
 37   
 38   
 39 -def install(target, source, env): 
 40      """relax installation function (a Builder action).""" 
 41   
 42      # Print out. 
 43      ############ 
 44   
 45      print('') 
 46      print("####################") 
 47      print("# Installing relax #") 
 48      print("####################\n\n") 
 49      print("Installing the program relax into the directory " + repr(env['RELAX_PATH']) + "\n\n") 
 50   
 51   
 52      # Tests. 
 53      ######## 
 54   
 55      # Test that the installation path exists. 
 56      if not access(env['INSTALL_PATH'], F_OK): 
 57          sys.stderr.write("Cannot install relax, the installation path " + repr(env['INSTALL_PATH']) + " does not exist.\n\n") 
 58          return 
 59   
 60      # Test if the binary directory already exists. 
 61      if not access(env['BIN_PATH'], F_OK): 
 62          sys.stderr.write("Cannot install relax, the directory " + repr(env['BIN_PATH']) + " does not exist.\n\n") 
 63          return 
 64   
 65      # Test if the relax installation directory already exists. 
 66      if access(env['RELAX_PATH'], F_OK): 
 67          sys.stderr.write("Cannot install relax, the directory " + repr(env['RELAX_PATH']) + " already exists.\n\n") 
 68          return 
 69   
 70      # Test if the symlink exists. 
 71      if env['SYMLINK_FLAG']: 
 72          try: 
 73              lstat(env['SYMLINK']) 
 74          except OSError: 
 75              # OK, symlink doesn't exist. 
 76              pass 
 77          else: 
 78              sys.stderr.write("Cannot install relax, the file " + repr(env['SYMLINK']) + " already exists.\n\n") 
 79              return 
 80   
 81   
 82      # Install. 
 83      ########## 
 84   
 85      # Copy the files (and create the directory). 
 86      try: 
 87          print("\nCopying all files in " + repr(getcwd()) + " to " + repr(env['RELAX_PATH']) + ".") 
 88          copytree(getcwd(), env['RELAX_PATH']) 
 89      except OSError: 
 90          message = sys.exc_info()[1] 
 91   
 92          # Failure message. 
 93          sys.stderr.write("Cannot install relax, " + message.__doc__ + "\n") 
 94   
 95          # You don't have the privilages to do this. 
 96          if message.errno == 13: 
 97              sys.stderr.write("Permission denied, cannot create the directory " + repr(env['RELAX_PATH']) + ".\n\n") 
 98   
 99          # All other errors (print normal python error message). 
100          else: 
101              sys.stderr.write("OSError: [Errno " + repr(message.errno) + "] " + message.strerror + ": " + repr(message.filename) + "\n\n") 
102   
103          # Quit the function. 
104          return 
105   
106      # Create the symbolic link. 
107      if env['SYMLINK_FLAG']: 
108          print("\nCreating the symbolic link from " + repr(env['RELAX_PATH'] + sep + 'relax') + " to " + repr(env['SYMLINK']) + ".") 
109          symlink(env['RELAX_PATH'] + sep + 'relax', env['SYMLINK']) 
110   
111   
112      # Byte compile. 
113      ############### 
114   
115      # Run relax to create the *.pyc files. 
116      print("\nCreating the byte-compiled *.pyc files.") 
117      python_path = sys.prefix + path.sep + 'bin' + path.sep + 'python' + `sys.version_info[0]` + '.' + `sys.version_info[1]` 
118      cmd = "cd %s; %s -m compileall . ; %s -O -m compileall ." % (env['RELAX_PATH'], python_path, python_path) 
119      print(cmd) 
120      system(cmd) 
121   
122      # Final printout. 
123      print("\n\n\n") 
124   
125   
126 -def uninstall(target, source, env): 
127      """relax deinstallation function (a Builder action).""" 
128   
129      # Print out. 
130      ############ 
131   
132      print('') 
133      print("######################") 
134      print("# Uninstalling relax #") 
135      print("######################\n\n") 
136      print("Uninstalling the program relax from the directory " + repr(env['INSTALL_PATH']) + "\n\n") 
137   
138   
139      # Tests. 
140      ######## 
141   
142      # Test that the installation path exists. 
143      if not access(env['INSTALL_PATH'], F_OK): 
144          sys.stderr.write("Cannot uninstall relax, the installation path " + repr(env['INSTALL_PATH']) + " does not exist.\n\n") 
145          return 
146   
147      # Test if the binary directory already exists. 
148      if not access(env['BIN_PATH'], F_OK): 
149          sys.stderr.write("Cannot uninstall relax, the directory " + repr(env['BIN_PATH']) + " does not exist.\n\n") 
150          return 
151   
152      # Test if the relax installation directory exists. 
153      if not access(env['RELAX_PATH'], F_OK): 
154          sys.stderr.write("Cannot uninstall relax, the directory " + repr(env['RELAX_PATH']) + " does not exist.\n\n") 
155          return 
156   
157      # Test if the symlink exists. 
158      if env['SYMLINK_FLAG']: 
159          try: 
160              lstat(env['SYMLINK']) 
161          except OSError: 
162              sys.stderr.write("Cannot uninstall relax, the file " + repr(env['SYMLINK']) + " does not exist.\n\n") 
163              return 
164   
165   
166      # Uninstall. 
167      ############ 
168   
169      # Remove the symbolic link. 
170      if env['SYMLINK_FLAG']: 
171          print("\nRemoving the symbolic link " + repr(env['SYMLINK']) + ".") 
172          remove(env['SYMLINK']) 
173   
174      # Remove the directory. 
175      print("\nRemoving the entire directory " + repr(env['RELAX_PATH']) + ".\n") 
176      for root, dirs, files in walk(env['RELAX_PATH'], topdown=False): 
177          for file in files: 
178              remove(path.join(root, file)) 
179          for file in dirs: 
180              rmdir(path.join(root, file)) 
181      rmdir(env['RELAX_PATH']) 
182   
183      # Final printout. 
184      print("\n\n\n") 
185