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gcc, colorgcc, lcov, valgrind

At home I usually don't create makefiles when my program is so small that it fits into one file.

However compilation errors are more readable with colorgcc, and having as much warnings/errors at compilation time as possible is even better.

.bashrc:

GCC_ARGS="-Wall -Werror -pedantic -Weffc++ -Wshadow -ggdb --coverage"
alias g++="/usr/lib/colorgcc/bin/g++ $GCC_ARGS"
alias gcc="/usr/lib/colorgcc/bin/gcc $GCC_ARGS"

The -ggdb puts debug symbols to the binary and --coverage will make the binary create .gcda and .gcno files at runtime.

To create a nice coverage-html lcov needs more steps (3) than I'm willing to type everytime so the following line in the .bashrc do the work. Note that the lcov_all is function, because argument passing is not possible with aliases.

alias lcov_reset="lcov --directory . -z ; rm -f ./lcov.info"
alias lcov_capture="lcov --directory . --capture -o lcov.info"
alias lcov_html="rm -rf ./cov ; mkdir cov ; genhtml -o ./cov lcov.info"
function lcov_all() { lcov_reset ; $1 ; lcov_capture ; lcov_html ; }

The best way to alter valgrind's behavior modifying the .valgrindrc:

--leak-check=full 
--show-reachable=yes 
--malloc-fill=0xaa 
--free-fill=0xbb

So when I program follow the following steps:

1. Edit the source.
2. g++ <sourcefile>
3. run <binary>
4. Check leaks: valgrind <binary>
5. If coverage is needed, lcov_all <binary>

command line GTD – task

A todo app is always handy, when you want to keep your shit together.

If you are not familiar with Getting Things Done from David Allen, do some googling & torrents reading, it worths the effort.

After trying ikog I settled with task, which is much richer in features (import/export vcalendars, etc)

I added the following lines to my .taskrc, which set some params and define a new view called l1.

defaultwidth=100
editor=vim

report.l1.columns=id,project,priority,due,tags,description
report.l1.filter=status:pending
report.l1.labels=ID,Project,Pri,Due,Tags,Description
report.l1.sort=due+,priority-,project+

So when I append the line to my .bashrc:

task l1

Every time I open a new terminal, I got reminded to my tasks.

put/get files to/from ftp server non-interactively

I decided to sync my work/home computers' calendar/contact files.

Since I wanted to avoid gmail and other closed solutions, I chose ftp as a transfer method and after some search I found ncftp which does the job.

Now I can issue the get script after login and the put before logout at each machine.

#!/bin/bash
# get files from remote server

ncftpget -u USER -p PASS FTPSERVER /LOCALPATH/ std.ics
ncftpget -u USER -p PASS FTPSERVER /LOCALPATH/ std.vcf

#!/bin/bash
# upload files to remote server

ncftpput -u USER -p PASS FTPSERVER . /LOCALPATH/std.ics
ncftpput -u USER -p PASS FTPSERVER . /LOCALPATH/std.vcf