Builder for live images based on Debian

Lyndon Brown c54cc2c497 echo: really ensure log messages go to stdout ... all echo helpers are used as logging functions with output to go to the terminal. when used in functions that are designed to return a string though the message printed would get incorrectly captured. the previous fix done in e3a987d977 was stupidly flawed; somehow my testing led me to mistakenly believe that was adequate, but retesting proves that it was not. here we create a new FD #3 linked to stdout to output the messages on, which testing shows works as I had actually intended it. e.g. here: ``` Foo () { if [ "$1" = "a" ]; then printf "foo\n"; else printf "error\n"; fi; } ``` we get: ``` ~$ Foo a foo ~$ Foo b error ~$ XX="$(Foo a)" ~$ echo "${XX}" foo ~$ XX="$(Foo b)" ~$ echo "${XX}" error ``` and as demonstrated, "error" got incorrectly captured by in the variable whereas here: ``` exec 3>&1 Foo () { if [ "$1" = "a" ]; then printf "foo\n"; else printf "error\n" >&3; fi; } ``` it is different in the last case: ``` ~$ XX="$(Foo b)" error ~$ echo "${XX}" ``` the error successfully makes it to the terminal, and the variable is an empty string (with a newline automatically printed). Gbp-Dch: Short		2020-03-13 13:50:35 +00:00
data/debian-cd	We should add buster for release	2019-02-17 14:51:24 +00:00
debian	CI: fix deploy stage	2020-03-12 14:23:56 +00:00
examples	amend copyright & licensing blocks	2020-03-11 13:51:19 +00:00
frontend	Revert "Test for executables: replace 'which' with more robust 'command -v'"	2020-03-12 12:32:26 +00:00
functions	echo: really ensure log messages go to stdout	2020-03-13 13:50:35 +00:00
manpages	Fix typo in lb_config.1 manpage	2020-03-12 12:49:28 +00:00
scripts	debootstrap: use --force-check-gpg	2020-03-12 14:44:49 +00:00
share	Revert "Test for executables: replace 'which' with more robust 'command -v'"	2020-03-12 12:32:26 +00:00
COPYING	Switching to GPL3+.	2011-03-09 18:22:29 +01:00
Makefile	fix capitalisation of some output messages	2020-03-05 20:36:54 +00:00