forked from sheetjs/sheetjs
43 lines
1.3 KiB
Bash
43 lines
1.3 KiB
Bash
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#!/bin/bash
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# make_help.sh -- process listing of targets and special items in Makefile
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# Copyright (C) 2016-present SheetJS
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#
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# usage in makefile: pipe the output of the following command:
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# @grep -hE '(^[a-zA-Z_-][ a-zA-Z_-]*:.*?|^#[#*])' $(MAKEFILE_LIST)
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#
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# lines starting with "## " are treated as subtitles
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# lines starting with "#* " are treated as plaintext comments
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# multiple targets with "## " after the ":" are rendered as separate targets
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# if the presumed default target is labeled, it will be assigned a unique color
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awk '
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BEGIN{recipes=0;}
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!/#[#*] .*$/ {next;}
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{multi=0; isrecipe=0;}
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/^[^#]*:/ {isrecipe=1; ++recipes;}
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/^[^ :]* .*:/ {multi=1}
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multi==0 && isrecipe>0 { if(recipes > 1) print; else print $0, "[default]"; next}
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isrecipe == 0 {print; next}
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multi>0 {
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k=split($0, msg, "##"); m=split($0, a, ":"); n=split(a[1], b, " ");
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for(i=1; i<=n; ++i) print b[i] ":", "##" msg[2], (recipes==1 && i==1 ? "[default]" : "")
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}
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END {}
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' | if [[ -t 1 ]]; then
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awk '
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BEGIN {FS = ":.*?## "}
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{color=36}
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/\[default\]/ {color=35}
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NF==1 && /^##/ {color=34}
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NF==1 && /^#\*/ {color=20; $1 = substr($1, 4)}
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{printf "\033[" color "m%-20s\033[0m %s\n", $1, $2;}
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END{}' -
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else
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awk '
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BEGIN {FS = ":.*?## "}
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/^#\* / {$1 = substr($1, 4)}
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{printf "%-20s %s\n", $1, $2;}
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END{}' -
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fi
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