1STRONGDEPS(1) DOSE Tools STRONGDEPS(1)
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6 strongdeps - indentify the strong dependency of a set of packages
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9 strongdeps [option] ... file ...
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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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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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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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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
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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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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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73 Pietro Abate, Jaap Boender, Roberto Di Cosmo
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76 <http://www.mancoosi.org> is the home page of the Mancoosi project.
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78 For a comprehensive explanation of the notion of strong dependency and
79 impact set see
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81 Strong Dependencies between Software Components, by Pietro Abate, Jaap
82 Boender, Roberto Di Cosmo, and Stefano Zacchiroli.
83 <http://mancoosi.org/reports/>
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87 2022-02-04 STRONGDEPS(1)