strongdeps(1)

1STRONGDEPS(1)                     DOSE Tools                     STRONGDEPS(1)
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NAME

6       strongdeps - indentify the strong dependency of a set of packages
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SYNOPSIS

9       strongdeps [option] ... file ...
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DESCRIPTION

12       strongdeps computes the strong dependencies and the impact set of a set
13       of packages. We say that p strongly depends on q if whenever p is
14       installed then q must also be installed. The impact set of a package q
15       is the set of all packages p that strongly depend on q.
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Input Specification

18       Input files have to contain stanzas in the format of deb-control(5),
19       separated by one blank line. For instance, the Packages files as found
20       on a Debian mirror server, or in the directory /var/lib/apt/lists/ of a
21       Debian system, are suitable as input. The repository used in the
22       analysis consists of the union of all packages from the input files.
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Output Specification

25       The output of strongdeps is a CSV table containing strong dependencies,
26       impact set and direct dependencies. If the option --checkonly is
27       spefified, strongdeps prints on standard output the list of the
28       packages that strong depends on each of the given packages. If
29       --checkonly if paired with --dot then strongdeps prints on standard
30       output the detransitivitazed graph of the strong dependencies of each
31       package in dot format.
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33       N.B. Since --checkonly computes only the strong dependencies of a set
34       of packages, the impact set is not computed.
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OPTIONS

37       --checkonly package[,package] ...
38               Specifies a list of packages to check. By default all packages
39               are checked. --checkonly and --table are mutually exclusive.
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41       --dot   Print the strong dependency graph in dot format
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43       --table Print the table (package,strong,direct,difference) in the file
44               data.csv
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46       --detrans
47               Perform the transitive reduction of the strong dependency
48               graph. This option is implied by --checkonly
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50       --transitive-closure
51               Perform the transitive closure of the direct dependency graph
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53       --conj-only
54               Use the conjunctive graph only
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56       -v      Enable info / warnings / debug messages. This option may be
57               repeated up to three times in order to increase verbosity.
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59       --progress
60               Display progress bars.
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62       -h, --help
63               Display this list of options.
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EXAMPLE

66        strongdeps --dot --checkonly "2ping,libc6" \
67        deb:///var/lib/apt/lists/ftp.fr.debian.org_debian_dists_sid_main_binary-amd64_Packages
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69        strongdeps --table \
70        deb:///var/lib/apt/lists/ftp.fr.debian.org_debian_dists_sid_main_binary-amd64_Packages
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AUTHORS

73       Pietro Abate, Jaap Boender, Roberto Di Cosmo
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