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Diffstat (limited to 'extensions/install-files.configure')
| -rwxr-xr-x | extensions/install-files.configure | 138 |
1 files changed, 0 insertions, 138 deletions
diff --git a/extensions/install-files.configure b/extensions/install-files.configure deleted file mode 100755 index 54481b97..00000000 --- a/extensions/install-files.configure +++ /dev/null @@ -1,138 +0,0 @@ -#!/usr/bin/python2 -# Copyright (C) 2013-2015 Codethink Limited -# -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; version 2 of the License. -# -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License along -# with this program. If not, see <http://www.gnu.org/licenses/>. - - -''' A Morph configuration extension for adding arbitrary files to a system - -It will read the manifest files specified in environment variables starting -INSTALL_FILES, then use the contens of those files to determine which files -to install into the target system. - -''' - -import errno -import os -import re -import sys -import shlex -import shutil -import stat - -try: - import jinja2 - jinja_available = True -except ImportError: - jinja_available = False - -import writeexts - -class InstallFilesConfigureExtension(writeexts.Extension): - - def process_args(self, args): - if not any(var.startswith('INSTALL_FILES') for var in os.environ): - return - target_root = args[0] - for manifest_var in sorted((var for var in os.environ - if var.startswith('INSTALL_FILES'))): - manifests = shlex.split(os.environ[manifest_var]) - for manifest in manifests: - self.install_manifest(manifest, target_root) - - def install_manifest(self, manifest, target_root): - manifest_dir = os.path.dirname(manifest) - with open(manifest) as f: - entries = f.readlines() - for entry in entries: - self.install_entry(entry, manifest_dir, target_root) - - def force_symlink(self, source, link_name): - try: - os.symlink(source, link_name) - except OSError as e: - if e.errno == errno.EEXIST: - os.remove(link_name) - os.symlink(source, link_name) - - def install_entry(self, entry, manifest_root, target_root): - m = re.match('(template )?(overwrite )?' - '([0-7]+) ([0-9]+) ([0-9]+) (\S+)', entry) - - if m: - template = m.group(1) - overwrite = m.group(2) - mode = int(m.group(3), 8) # mode is octal - uid = int(m.group(4)) - gid = int(m.group(5)) - path = m.group(6) - else: - raise writeexts.ExtensionError( - 'Invalid manifest entry, ' - 'format: [template] [overwrite] ' - '<octal mode> <uid decimal> <gid decimal> <filename>') - - dest_path = os.path.join(target_root, './' + path) - if stat.S_ISDIR(mode): - if os.path.exists(dest_path) and not overwrite: - dest_stat = os.stat(dest_path) - if (mode != dest_stat.st_mode - or uid != dest_stat.st_uid - or gid != dest_stat.st_gid): - raise writeexts.ExtensionError( - '"%s" exists and is not identical to directory ' - '"%s"' % (dest_path, entry)) - else: - os.mkdir(dest_path, mode) - os.chown(dest_path, uid, gid) - os.chmod(dest_path, mode) - - elif stat.S_ISLNK(mode): - if os.path.lexists(dest_path) and not overwrite: - raise writeexts.ExtensionError('Symlink already exists at %s' - % dest_path) - else: - linkdest = os.readlink(os.path.join(manifest_root, - './' + path)) - self.force_symlink(linkdest, dest_path) - os.lchown(dest_path, uid, gid) - - elif stat.S_ISREG(mode): - if os.path.lexists(dest_path) and not overwrite: - raise writeexts.ExtensionError('File already exists at %s' - % dest_path) - else: - if template: - if not jinja_available: - raise writeexts.ExtensionError( - "Failed to install template file `%s': " - 'install-files templates require jinja2' - % path) - - loader = jinja2.FileSystemLoader(manifest_root) - env = jinja2.Environment(loader=loader, - keep_trailing_newline=True) - - env.get_template(path).stream(os.environ).dump(dest_path) - else: - shutil.copyfile(os.path.join(manifest_root, './' + path), - dest_path) - - os.chown(dest_path, uid, gid) - os.chmod(dest_path, mode) - - else: - raise writeexts.ExtensionError('Mode given in "%s" is not a file,' - ' symlink or directory' % entry) - -InstallFilesConfigureExtension().run() |