How can I highlight the warning and error lines in the make output?

Sometimes, make's output fills the screen. It's a little bit hard开发者_运维技巧 to identify all the warning and error message lines. I know may shell color output can help Can anyone can help me?

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Have a look at colormake, found here

$ apt-cache search colormake
colormake - simple wrapper around make to colorize output

Using the power of google, I also found this bash-function.

make()
{
  pathpat="(/[^/]*)+:[0-9]+"
  ccred=$(echo -e "\033[0;31m")
  ccyellow=$(echo -e "\033[0;33m")
  ccend=$(echo -e "\033[0m")
  /usr/bin/make "$@" 2>&1 | sed -E -e "/[Ee]rror[: ]/ s%$pathpat%$ccred&$ccend%g" -e "/[Ww]arning[: ]/ s%$pathpat%$ccyellow&$ccend%g"
  return ${PIPESTATUS[0]}
}

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I have came to this questions searching for a solution to colorize make output and then remembered a while back I have researched a good generic log colorizer and found ccze. It works with anything I throw at it from Minecraft server logs to Exim MTA.

make | ccze -A

NOTE: specifying -A option enables 'raw-ansi' otherwise some output is 'cleared' at end of run in my experience.

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If you're an emacs user, you can use the command M-x compile. This puts the make output in a highlighted buffer, with errors acting as links to the relevant line in the source code.

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Just another bash function , much concise

make()
{
  /usr/bin/make "$@" 2>&1 | sed -E -e "s/error/ $(echo -e "\\033[31m" ERROR "\\033[0m"/g)"   -e "s/warning/ $(echo -e "\\033[0;33m" WARNING "\\033[0m"/g)"
  return ${PIPESTATUS[0]}
}

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How about the following?

It is produced by a simplified version of this Makefile.

PROJECT = programname
SHELL   = /bin/bash
OBJS    = $(patsubst src/%.cc,obj/%.o,$(wildcard src/*.cc))

RESET          = \033[0m
make_std_color = \033[3$1m      # defined for 1 through 7
make_color     = \033[38;5;$1m  # defined for 1 through 255
WRN_COLOR = $(strip $(call make_std_color,3))
ERR_COLOR = $(strip $(call make_std_color,1))
STD_COLOR = $(strip $(call make_color,8))

COLOR_OUTPUT = 2>&1 |                                   \
    while IFS='' read -r line; do                       \
        if  [[ $$line == *:[\ ]error:* ]]; then         \
            echo -e "$(ERR_COLOR)$${line}$(RESET)";     \
        elif [[ $$line == *:[\ ]warning:* ]]; then      \
            echo -e "$(WRN_COLOR)$${line}$(RESET)";     \
        else                                            \
            echo -e "$(STD_COLOR)$${line}$(RESET)";     \
        fi;                                             \
    done; exit $${PIPESTATUS[0]};

.PHONY: $(PROJECT)

$(PROJECT): bin/$(PROJECT)

bin/$(PROJECT): $(OBJS)
    @mkdir -p bin
    @echo g++ -o $@ $(OBJS) -Iinclude
    @g++ -o $@ $(OBJS) -Iinclude $(COLOR_OUTPUT)

obj/%.o: src/%.cc
    @mkdir -p obj
    @echo g++ -o $@ -c $< -Wall -Wextra
    @g++ -o $@ -c $< -Wall -Wextra $(COLOR_OUTPUT)

It assumes all C++ source files are in the src directory (extention .cc) and header files are in the include directory.

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I used to use multitail for log files it can highlight (and filter) lines based on various criteria.

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On Mac, it worked by printing tput color codes around the error string.

First export tput color codes as below:

export red=`tput setaf 1`
export reset=`tput sgr0`

then, add a target to Makefile as below:

...
check-env:
ifndef ENV
    $(error ${red}ENV is undefined. Please export it using command [ export ENV=dev ]${reset})
endif
...

then, run it as make check-env

Screen shot -

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GCC has an environment variable for that:

export GCC_COLORS='error=01;31:warning=01;35:note=01;36:caret=01;32:locus=01:quote=01'

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I recently looked into this for our team and I modified the source of make to produce output where CL.EXE (Windows) output get the text 'warning' and 'error' in a color using ANSI escape codes.

I dropped it on github here: https://github.com/XtheOne/make-colorized

It could be further developed by making the words that needs replacing configurable as parameter or in a file. But for now it works just fine for us.