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makepplog -- Textual analysis of the build log


?: -?, A: -A,
--arguments-file, C: -C,
--current-working-directory-and-up, D: -d, F: -f,
--follow, H: -h,
--help, I: -i,
--install-dirs, K: -K,
--keys, L: -l,
--log-file, M: $MAKEPPLOGFLAGS, N: -n,
--no-indent, O: -o,
--output, P: -p,
--prefix, S: --set-directory,
--showkey, T: -t,
--tabulate, U: -u,
--unique, V: -V,

makepplog option ...

mppl option ...

Makepp by default writes a detailed log of its decision finding and actions. So as to not
waste its time with pretty printing, this data is dumped in a compact, cryptic format.
This tool does the pretty printing and filtering in various formats. For a less detailed
but prettier graphical view see makeppgraph.

This is solely based on the contents of the log file (.makepp/log), so it can be performed
at any time as long as you preserve the file, and even on a different machine. Every time
makepp stops when running with option "--loop", you get a page break. Valid options are:

-A filename
Read the file and parse it as possibly quoted whitespace- and/or newline-separated

-C number
The first two options strip the current directory from the front of all filenames it
outputs. The second two additionally replace number directories up from here, with
the necessary number of ../ entries.

These options only work meaningfully when you call makepplog in the same directory
makepp ran, or one near there.

Virtually switch to the directory where the log file was originally produced. If you
copied or moved it from there, this is necessary for "-c" (which is implied by this
option) to shorten the original path.

As in "tail" command, process more lines of logfile as it grows.

Print out a brief summary of the options.

These options replace the invocation of makepp and the pathes to the built in
makefiles with .../ so as to keep odd pathes out of your sight.

-k list
The list specifies one or more space separated Shell style patterns (with [xyz], ?, *,
{a,bc,def}). Remember to protect these from your Shell by quoting. These are matched
against the message keys (as shown by "--showkey"). Each pattern may be preceded with
an exclamation mark ("!") or a caret ("^") to exclude the matched keys from those
selected before instead of adding them to the selection. If the first pattern starts
with an exclamation mark, it operates on all keys. There are a few key prefixes with
fixed meanings so you can select categories of keys:

BC* All build cache related messages.

All build reason related messages.

All makefile loading related messages.

All repository related messages.

All rule related messages.

All scanning related messages.

--keys='LOAD* RULE*' # Only makefile loading and rule messages.
--keys='!BUILD* *CMD' # No build messages, except BUILD_CMD.

This prefixes each output line with the internal name of the message key, for later
use with "--keys".

-l filename
The filename is to where makepp wrote its log. It may also be a directory, in which a
file called .makepp/log or log will be searched. To read from stdin, you must give -
as a filename. When this option is not given, it defaults to the current directory.

This option can be given multiple times, e.g. for merging all the logs from
"--traditional-recursive-make". But it will get the message version information,
which keeps track of message formats, only from the first file. So if you feed it log
files from different version of makepp in the same invocation, output can get a bit
messed up.

Makepp puts indentation information into the log file to show you what happened
because of what else. This option turns indentation off.

-o filename
Write the output to this file, rather than stdout.

Prefix every structured message with the string "makepplog: ". IDEs like Emacs can
then parse the lines and hyperlink to the mentioned files.

Put each list item on a new line, rather than outputting a line that can easily become
longer than a screenful.

Report each found include statement and each scan output only once.

Print out the version number.


If you want to know which file includes which other file, and nothing else:

makeppclean -r
makepp # Full build to scan all source files.
makepplog -p '/^INCL$/'

If you want to format lines with a prefix so Emacs' compilation-mode can parse the lines
and exclude all scanning related messages:

makepplog -mp '!/^SCAN/'

If you want to explore which keys you can exclude or include in the above manners:

makepplog -kn


Makepplog looks at the following environment variable:

Any flags in this environment variable are interpreted as command line options before
any explicit options. Quotes are interpreted like in makefiles.

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