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58 lines
1.2 KiB
Bash
58 lines
1.2 KiB
Bash
#!/bin/bash
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# Generate a JSON file compatible with clangd for indexing. Parses
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# the output of the make process, extract gcc lines, and convert to JSON
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# using (gnu) AWK
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# Join lines that finish by \ -- then split the large command lines around
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# && and ||, then look for gcc, then split and look for a .c argument.
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# when found, populate the compile_commands.json file
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gawk -v dir="$(pwd)" '
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BEGIN {
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acc="";line=0;
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print "[";
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}
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END {
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print "]";
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}
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/\\ *$/ {
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$0 = gensub(/\\ *$/, "", "g", $0);
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acc = acc $0
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next;
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}
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/\|\| *$/ {
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acc = acc $0
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next;
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}
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/^g?make\[([0-9]+)]/ {
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if ($2 != "Entering")
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next;
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dir = gensub(/'\''/, "", "g", $4)
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next;
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}
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{
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acc = acc $0
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acc = gensub(/([^\\])"/, "\\1\\\\\"", "g", acc);
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acc = gensub(/ +/, " ", "g", acc);
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cnt = split(acc, e, / *\|\| *| *&& */);
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acc = "";
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for (cmd in e) {
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e[cmd] = gensub(/[ |\t]+$/, "", "g", e[cmd]);
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split(e[cmd], arg, / +/);
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if (!match(arg[1], /g?cc$/))
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continue;
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c_file=""
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for (ai in arg) {
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if (match(arg[ai], /\.c$/)) {
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c_file = arg[ai];
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break;
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}
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}
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if (c_file != "") {
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if (line > 0) printf ",";
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line++;
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printf "{\"directory\":\"%s\",\"file\":\"%s\",\"command\":\"%s\"}\n",
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dir, c_file, e[cmd];
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}
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}
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}
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'
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