Adding upstream version 2.7.6.upstream/2.7.6

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 60 insertions, 0 deletions

diff --git a/doc/examples/config.py b/doc/examples/config.py
new file mode 100755
index 0000000..fb687e3
--- /dev/null
+++ b/doc/examples/config.py
@@ -0,0 +1,60 @@
+#!/usr/bin/python3
+# Example demonstrating how to use the configuration/commandline system
+# for configuration.
+# Some valid command lines..
+#   config.py -h --help            ; Turn on help
+#   config.py -no-h --no-help --help=no  ; Turn off help
+#   config.py -qqq -q=3            ; verbosity to 3
+#   config.py -c /etc/apt/apt.conf ; include that config file]
+#   config.py -o help=true         ; Turn on help by giving a
+#                                  ; config file string
+#   config.py -no-h -- -help       ; Turn off help, specify the file '-help'
+# -c and -o are standard APT-program options.
+
+import posixpath
+import sys
+
+# This shows how to use the system for configuration and option control.
+# The other varient is for ISC object config files. See configisc.py.
+import apt_pkg
+
+# Create a new empty Configuration object - there is also the system global
+# configuration object apt_pkg.config which is used interally by apt-pkg
+# routines to control unusual situations. I recommend using the sytem global
+# whenever possible..
+Cnf = apt_pkg.Configuration()
+
+print("Command line is", sys.argv)
+
+# Load the default configuration file, init_config() does this better..
+Cnf.set("config-file", "/etc/apt/apt.conf")  # or Cnf["config-file"] = ".."
+if posixpath.exists(Cnf.find_file("config-file")):
+    apt_pkg.read_config_file(Cnf, "/etc/apt/apt.conf")
+
+# Merge the command line arguments into the configuration space
+Arguments = [
+    ("h", "help", "help"),
+    ("v", "version", "version"),
+    ("q", "quiet", "quiet", "IntLevel"),
+    ("c", "config-file", "", "ConfigFile"),
+    ("o", "option", "", "ArbItem"),
+]
+print("FileNames", apt_pkg.parse_commandline(Cnf, Arguments, sys.argv))
+
+print("Quiet level selected is", Cnf.find_i("quiet", 0))
+
+# Do some stuff with it
+if Cnf.find_b("version", 0) == 1:
+    print("Version selected - 1.1")
+
+if Cnf.find_b("help", 0) == 1:
+    print("python-apt", apt_pkg.VERSION, "compiled on", apt_pkg.DATE, apt_pkg.TIME)
+    print("Hi, I am the help text for this program")
+    sys.exit(0)
+
+print("No help for you, try -h")
+
+# Print the configuration space
+print("The Configuration space looks like:")
+for item in list(Cnf.keys()):
+    print(f'{item} "{Cnf[item]}";')