178cb24338
It's an incredibly cheesy helper that changes human-readable revision arguments into the git-rev-list argument format. You can use it to do something like this: git-rev-list --pretty $(git-rev-parse --default HEAD "$@") which is what git-log-script will become. Here git-rev-parse will then allow you to use arguments like "v2.6.12-rc5.." or similar human-readable ranges. It's really quite stupid: "a..b" will be converted into "a" and "^b" if "a" and "b" are valid object pointers. And the "--default" case will be used if nothing but flags have been seen, so that you can default to a certain argument if there are no other ranges.
71 lines
1.2 KiB
C
71 lines
1.2 KiB
C
/*
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* rev-parse.c
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*
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* Copyright (C) Linus Torvalds, 2005
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*/
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#include "cache.h"
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int main(int argc, char **argv)
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{
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int i, as_is = 0;
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char *def = NULL;
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unsigned char sha1[20];
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for (i = 1; i < argc; i++) {
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char *arg = argv[i];
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char *dotdot;
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if (as_is) {
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printf("%s\n", arg);
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continue;
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}
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if (*arg == '-') {
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if (!strcmp(arg, "--")) {
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if (def) {
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printf("%s\n", def);
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def = NULL;
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}
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as_is = 1;
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}
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if (!strcmp(arg, "--default")) {
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if (def)
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printf("%s\n", def);
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def = argv[i+1];
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i++;
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continue;
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}
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printf("%s\n", arg);
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continue;
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}
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def = NULL;
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if (!get_sha1(arg, sha1)) {
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printf("%s\n", sha1_to_hex(sha1));
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continue;
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}
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if (*arg == '^' && !get_sha1(arg+1, sha1)) {
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printf("^%s\n", sha1_to_hex(sha1));
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continue;
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}
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dotdot = strstr(arg, "..");
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if (dotdot) {
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unsigned char end[20];
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char *n = dotdot+2;
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*dotdot = 0;
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if (!get_sha1(arg, sha1)) {
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if (!*n)
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n = "HEAD";
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if (!get_sha1(n, end)) {
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printf("%s\n", sha1_to_hex(end));
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printf("^%s\n", sha1_to_hex(sha1));
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continue;
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}
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}
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*dotdot = '.';
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}
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printf("%s\n", arg);
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}
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if (def)
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printf("%s\n", def);
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return 0;
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}
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