The following options are understood by the send variant:

-BaseLine

This option may be used to specify the source of a project, rather than a change.

-Add_Path_Prefix string

This option may be used to specify a path prefix to be added to every filename in the archive. This means that when the archive is unpacked, it will all be placed in the one directory.

-Change number

This option may be used to specify a particular change within a project. See aegis(1) for a complete description of this option.

-COmpress This option may be used to specify that the output is to be compressed. This is the default.

-No_COmpress This option may be used to specify that the output is not to be compressed.

-DELta number

This option may be used to specify a particular delta in the project's history to copy the file from, rather than the most current version. If the delta has been given a name (see aedn(1) for how) you may use a delta name instead of a delta number. It is an error if the delta specified does not exist. Delta numbers start from 1 and increase; delta 0 is a special case meaning ``when the branch started''.

-DELta_Date string

This option may be used to specify a particular date and time in the project's history to copy the file from, rather than the most current version. It is an error if the string specified cannot be interpreted as a valid date and time. Quote the string if you need to use spaces.

-Entire_Source

This option may be used to send the entire source of the project, as well as the change source files. This is the default.

-Partial_Source

This option may be used to send only source files of a change.

-Include_Build

This option may be used to send also build files.

-Not_Include_Build

This option may be used to send only source (source, test, config but not build) files. This is the default.

-Output filename

This option may be used to specify the output file. The output is sent to the standard output by default.

-Project name

This option may be used to select the project of interest. When no -Project option is specified, the AEGIS_PROJECT environment variable is consulted. If that does not exist, the user's $HOME/.aegisrc file is examined for a default project field (see aeuconf(5) for more information). If that does not exist, when the user is only working on changes within a single project, the project name defaults to that project. Otherwise, it is an error.

It is common for tar files generated to distribute open source projects to contain a path prefix.

-Remove_Path_Prefix string

This option may be used to explicitly specify path prefixes to be removed, if present. It may be specified more than once.

If you have a complex project directory structure, from time to time people may send you tarballs relative to a sub-directory, rather than relative to the project root.

-Add_Path_Prefix string

This option may be used to specify the path of a project sub-directory in which to apply the tarball.

The command invokes various other Aegis commands. The usual notifications that these commands would issue are issued.

The following options are understood by the receive variant:

-Change number

This option may be used to choose the change number to be used, otherwise one will be chosen automatically.

-DELta number

This option may be used to specify a particular delta in the project's history to copy the file from, just as for the aecp(1) command. You may also use a delta name instead of a delta number.

-DIRectory path

This option may be used to specify which directory is to be used. It is an error if the current user does not have appropriate permissions to create the directory path given. This must be an absolute path.

Caution: If you are using an automounter do not use `pwd` to make an absolute path, it usually gives the wrong answer.

-File filename

Read the change set from the specified file. The default is to read it from the standard input. The filename `-' is understood to mean the standard input.

If your system has libcurl(3), and Aegis was configured to use it at compile time (this is the default if it is available) you will also be able to specify a Uniform Resource Locator (URL) in place of the file name. The relevant data will be downloaded. (The -Verbose option will provide a progress bar.)

-Project name

This option may be used to select the project of interest. When no -Project option is specified, the AEGIS_PROJECT environment variable is consulted. If that does not exist, the user's $HOME/.aegisrc file is examined for a default project field (see aeuconf(5) for more information). If that does not exist, when the user is only working on changes within a single project, the project name defaults to that project. Otherwise, it is an error.

-Trojan

This option may be used to treat the change set as if it had a Trojan horse attack in it.

-No_Trojan

This option may be used to treat the change set as if it definitely does not have a Trojan horse attack in it. Use with extreme care. You need to have authenticated the message with something like PGP first and know the the author well.

Downloading a tarball and automatically committing it to the baseline without checking it would be a recipe for disaster. A number of safeguards are provided:

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The file sare unpacked into a new change. You need to edit the change description. You need to uncopy unchanged files. You need to difference the change. You need to build and test the change. This ensures that a local reviewer validates the change before it is committed, preventing accidental or malicious damage.

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The use of authentication and encryption systems, such as PGP and GPG, are encouraged. However, it is expected that this processing will occur after aetar --send has constructed the package and before aetar --receive examines and acts on the package. Verification of the sender is the surest defense against trojan horses.

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Automatic sending and receiving of packages is supported, but not implemented within the command. It is expected that the command will be used within shell scripts customized for your site and its unique security requirements. See the Aegis User Guide for several different ways to do this.

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The more you use Aegis' test management facilities (see aent(1) and aet(1)) the harder it is for an inadequate change to get into the baseline.

The following options are understood by the list variant:

-File filename

Read the change set from the specified file. The default is to read it from the standard input. The filename `-' is understood to mean the standard input.

If your system has libcurl(3), and Aegis was configured to use it at compile time (this is the default if it is available) you will also be able to specify a Uniform Resource Locator (URL) in place of the file name. The relevant data will be downloaded. (The -Verbose option will provide a progress bar.)

-Output filename

This option may be used to specify the output file. The output is sent to the standard output by default. Only useful with the -List option.