提交 c53e0019 编写于 作者: S Stephen Dolan

Version number tracking.

上级 976e4ff7
CC=gcc -Wextra -Wall -Wno-missing-field-initializers -Wno-unused-parameter -std=gnu99 -ggdb -Wno-unused-function
prefix=/usr/local
.PHONY: all clean releasedep tarball
.PHONY: all clean releasedep tarball install uninstall test releasetag
all: jq
clean:
......@@ -22,6 +22,10 @@ jv_utf8_tables.gen.h: gen_utf8_tables.py
python $^ > $@
jv_unicode.c: jv_utf8_tables.gen.h
version.gen.h: VERSION
sed 's/.*/#define JQ_VERSION "&"/' $^ > $@
main.c: version.gen.h
JQ_SRC=parser.gen.c lexer.gen.c opcode.c bytecode.c compile.c execute.c builtin.c jv.c jv_parse.c jv_print.c jv_dtoa.c jv_unicode.c
......@@ -31,13 +35,15 @@ jq_test: $(JQ_SRC) jq_test.c
jq: $(JQ_SRC) main.c
$(CC) -O -DJQ_DEBUG=0 -o $@ $^
test: jq_test
valgrind --error-exitcode=1 -q --leak-check=full ./jq_test >/dev/null
releasedep: lexer.gen.c parser.gen.c jv_utf8_tables.gen.h
releasetag:
git tag -s "jq-$$(cat VERSION)" -m "jq release $$(cat VERSION)"
docs/content/2.download/source/jq.tgz: jq
mkdir -p `dirname $@`
tar -czvf $@ `git ls-files; ls *.gen.*`
......
......@@ -555,7 +555,7 @@ sections:
results as `a`, if `a` produces results other than `false`
and `null`. Otherwise, `a // b` produces the same results as `b`.
This is useful for providing defaults: `.foo or 1` will
This is useful for providing defaults: `.foo // 1` will
evaluate to `1` if there's no `.foo` element in the
input. It's similar to how `or` is sometimes used in Python
(jq's `or` operator is reserved for strictly Boolean
......
......@@ -8,11 +8,12 @@
#include "locfile.h"
#include "parser.h"
#include "execute.h"
#include "version.gen.h"
static const char* progname;
static void usage() {
fprintf(stderr, "\njq - commandline JSON processor\n");
fprintf(stderr, "\njq - commandline JSON processor [version %s]\n", JQ_VERSION);
fprintf(stderr, "Usage: %s [options] <jq filter>\n\n", progname);
fprintf(stderr, "For a description of the command line options and\n");
fprintf(stderr, "how to write jq filters (and why you might want to)\n");
......@@ -92,6 +93,9 @@ int main(int argc, char* argv[]) {
options |= PROVIDE_NULL;
} else if (isoption(argv[i], 'h', "help")) {
usage();
} else if (isoption(argv[i], 'V', "version")) {
fprintf(stderr, "jq version %s\n", JQ_VERSION);
return 0;
} else {
fprintf(stderr, "%s: Unknown option %s\n", progname, argv[i]);
die();
......
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