If you wish to send "traditional" patches to developers who are not using Aegis to manage the sources at their end, you can use the following options: aepatch -send -cte=none -nocomp This says to use no Content Transfer Encoding, and no compression. If you wish to also omit the Aegis meta data, you can use the following options: aepatch -send -cte=none -nocomp -compat=4.16 This setting for the -compatibility option omits all Aegis extensions.

By default, a context diff is generated. Some projects prefer to use the unified diff format. This is controlled by the patch_diff_command field of the project configuration file (see aepconf(5) for more information). If you have GNU diff, use the following command: patch_diff_command = "set +e; " "diff -u --text " "-L ${quote $index} -L ${quote $index} " "${quote $original} ${quote $input} > ${quote $output}; " "test $? -le 1""; This setting will cause the aepatch(1) command to produce unified diff patches instead of context diff patches. As you can see from this command, the aepatch(1) command is onlu of use if you have text source files; it produces less than ideal results for binary files.

The following options are understood by the send variant:

-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.

-COMPATibility version-number

This option may be used to specify the version of aepatch(1) which will be receiving this change set. This information is used to select which features to include in the data, and which to omit. By default, the latest feature set will be used.

-Content_Transfer_Encoding name

This option may be used to specify the content transfer encoding to be used. It may take one of the following values:

None

No content transfer encoding is to be performed.

Base64

The MIME base 64 encoding is to be used. This is the default.

Quoted_Printable

The MIME quoted printable encoding is to be used.

Unix_to_Unix_encode

The ancient unix-to-unix encoding is to be used. These encodings may be abbreviated in the same way as comment line options.

-Ascii_Armor This means the same as the ``-cte=base64'' option above.

-No_Ascii_Armor This means the same as the ``-cte=none'' option above.

-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.

-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.

-Signed_Off_By

This option may be used to have a CW]Signed-off-by: line appended to the change set description.

-No_Signed_Off_By

This option may be used to prevent a CW]Signed-off-by: line from being appended to the change set description.

It is common for patch files generated using the usual diff -r mechanism to contain extra path prefixes. The (1) command attempts to remove these automagically. This is usually possible because patches usually modify files within the project, so the patch file names are compared with project file names to guess which and how much path prefixes to remove.

-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 patches relative to a sub-directory, rather than relative to the project root. The (1) program can't guess this by itself.

-Add_Path_Prefix string

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

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 the change number in the patch (if present) will be used if it is available, 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 set the project name. If not specified the project name in the input package will be used (if present), otherwise the usual project name default will be used.

-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.

Receiving changes by e-mail, and automatically committing them to the baseline without checking them, would be a recipe for disaster. A number of safeguards are provided:

•

The format of the package is confirmed to be correct, and the package verified for internal consistency, before it is unpacked and acted upon.

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The automatic portion of the process stops before development ends. This ensures that the receiver validates the change before it is committed, and then it must also be reviewed, preventing accidental or malicious damage.

•

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.