Makefile get list of targets

Question

I use the following code to get a makefile targets list which works OK for most cases, however when you use makefile like this you get only two targets and not all.

The another command doesn't show up

cat Makefile

command: ## Command description
    @echo "Execution log"

another-command: ## Command description
    @echo "Execution log"

command2: ## Command description
    @echo "Execution log"

The output is:

command
command2

I don't understand why I don't getting the command another-command, This is the code

`make -qp | awk -F':' '/^[a-zA-Z0-9][^$#\\\/t=]*:([^=]|$)/ {split($1,A,/ /);for(i in A)print A[i]}' `;

What could be the problem ?

I use this as reference How to list all targets in make?

What are you expecting [^$#\\\/t=]* to match? right now, it's excluding notther I think? — steeldriver, Mar 30 '20 at 21:20
Please show the actual makefile. The makefile that you show would not produce the output that you show. Also explain the purpose of your last code fragment. — Kusalananda, Mar 31 '20 at 08:45
@Kusalananda - I've added the picture to the post, please have a look. — NSS, Mar 31 '20 at 09:01
@NinaS, I can't run your picture through your commands, so it is useless as a test case. — vonbrand, Mar 31 '20 at 12:18
@vonbrand - but you have the makefile posted and the commands to run, I dont understand what is missing :) — NSS, Apr 01 '20 at 06:46
@NinaS: you don't use the command that was posted in the question you linked to. Use make -qp | awk -F':' '/^[a-zA-Z0-9][^$#\/\t=]*:([^=]|$)/ {split($1,A,/ /);for(i in A)print A[i]}' — Arkadiusz Drabczyk, Apr 15 '20 at 15:08
@ArkadiuszDrabczyk - When I try it I got error , awk: nonterminated character class ^[a-zA-Z0-9][^$# source line number 1 context is

/^[a-zA-Z0-9][^$#/ <<< — NSS, Apr 22 '20 at 07:08
@ArkadiuszDrabczyk - Currently I use make -qp | awk -F':' '/^[a-zA-Z0-9][^$#\\/t=]*:([^=]|$)/ {split($1,A,/ /);for(i in A)print A[i]}' — NSS, Apr 22 '20 at 12:57
@ArkadiuszDrabczyk - I tried your option make -qp | awk -F':' '/^[a-zA-Z0-9][^$#\/\t=]*:([^=]|$)/ {split($1,A,/ /);for(i in A)print A[i]}' but I got the error nonterminated character class ^[a-zA-Z0-9][^$# — NSS, Apr 22 '20 at 12:58
@NinaS: it should work. What version of awk are you using? Post output of awk --version — Arkadiusz Drabczyk, Apr 22 '20 at 13:15
@NinaS: are you using BSD? Can you try upgrading awk or, as a last resort, installing GNU awk? I tried with awk version 20121220 (FreeBSD) and it works well. — Arkadiusz Drabczyk, Apr 22 '20 at 13:56
@NinaS: ok, I see. Try suggestions from my previous comment. — Arkadiusz Drabczyk, Apr 22 '20 at 14:00

Polluks · Accepted Answer · 2020-04-22T15:18:37.123

5

$ make -qp | awk -F':' '/^[a-zA-Z0-9][^$#\\\t=]*:([^=]|$)/ {split($1,A,/ /);for(i in A)print A[i]}'
command
Makefile
command2
another-command

In my character set are backslash and tab, in your set are backslash, slash and "t".

And "another" contains a "t" ;-)

Credits to steeldriver

edited Apr 22 '20 at 15:18

answered Apr 22 '20 at 13:35

Polluks

249
1
8

Why does this list Makefile as a target, though? – nsheff Mar 02 '21 at 22:37
@nsheff "Not a target" built-in, try make -qp | grep -1 Makefile – Polluks Mar 03 '21 at 21:32

Makefile get list of targets

1 Answers1