git@vger.kernel.org list mirror (unofficial, one of many)
 help / color / Atom feed
ecb0bdff3af8ec82c117c2a71a92f92ddbd9985c blob 3737 bytes (raw)

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
 
#include "cache.h"
#include "refs.h"
#include "refspec.h"

static struct refspec s_tag_refspec = {
	0,
	1,
	0,
	0,
	"refs/tags/*",
	"refs/tags/*"
};

/* See TAG_REFSPEC for the string version */
const struct refspec *tag_refspec = &s_tag_refspec;

static struct refspec *parse_refspec_internal(int nr_refspec, const char **refspec, int fetch, int verify)
{
	int i;
	struct refspec *rs = xcalloc(nr_refspec, sizeof(*rs));

	for (i = 0; i < nr_refspec; i++) {
		size_t llen;
		int is_glob;
		const char *lhs, *rhs;
		int flags;

		is_glob = 0;

		lhs = refspec[i];
		if (*lhs == '+') {
			rs[i].force = 1;
			lhs++;
		}

		rhs = strrchr(lhs, ':');

		/*
		 * Before going on, special case ":" (or "+:") as a refspec
		 * for pushing matching refs.
		 */
		if (!fetch && rhs == lhs && rhs[1] == '\0') {
			rs[i].matching = 1;
			continue;
		}

		if (rhs) {
			size_t rlen = strlen(++rhs);
			is_glob = (1 <= rlen && strchr(rhs, '*'));
			rs[i].dst = xstrndup(rhs, rlen);
		}

		llen = (rhs ? (rhs - lhs - 1) : strlen(lhs));
		if (1 <= llen && memchr(lhs, '*', llen)) {
			if ((rhs && !is_glob) || (!rhs && fetch))
				goto invalid;
			is_glob = 1;
		} else if (rhs && is_glob) {
			goto invalid;
		}

		rs[i].pattern = is_glob;
		rs[i].src = xstrndup(lhs, llen);
		flags = REFNAME_ALLOW_ONELEVEL | (is_glob ? REFNAME_REFSPEC_PATTERN : 0);

		if (fetch) {
			struct object_id unused;

			/* LHS */
			if (!*rs[i].src)
				; /* empty is ok; it means "HEAD" */
			else if (llen == GIT_SHA1_HEXSZ && !get_oid_hex(rs[i].src, &unused))
				rs[i].exact_sha1 = 1; /* ok */
			else if (!check_refname_format(rs[i].src, flags))
				; /* valid looking ref is ok */
			else
				goto invalid;
			/* RHS */
			if (!rs[i].dst)
				; /* missing is ok; it is the same as empty */
			else if (!*rs[i].dst)
				; /* empty is ok; it means "do not store" */
			else if (!check_refname_format(rs[i].dst, flags))
				; /* valid looking ref is ok */
			else
				goto invalid;
		} else {
			/*
			 * LHS
			 * - empty is allowed; it means delete.
			 * - when wildcarded, it must be a valid looking ref.
			 * - otherwise, it must be an extended SHA-1, but
			 *   there is no existing way to validate this.
			 */
			if (!*rs[i].src)
				; /* empty is ok */
			else if (is_glob) {
				if (check_refname_format(rs[i].src, flags))
					goto invalid;
			}
			else
				; /* anything goes, for now */
			/*
			 * RHS
			 * - missing is allowed, but LHS then must be a
			 *   valid looking ref.
			 * - empty is not allowed.
			 * - otherwise it must be a valid looking ref.
			 */
			if (!rs[i].dst) {
				if (check_refname_format(rs[i].src, flags))
					goto invalid;
			} else if (!*rs[i].dst) {
				goto invalid;
			} else {
				if (check_refname_format(rs[i].dst, flags))
					goto invalid;
			}
		}
	}
	return rs;

 invalid:
	if (verify) {
		/*
		 * nr_refspec must be greater than zero and i must be valid
		 * since it is only possible to reach this point from within
		 * the for loop above.
		 */
		free_refspec(i+1, rs);
		return NULL;
	}
	die("Invalid refspec '%s'", refspec[i]);
}

int valid_fetch_refspec(const char *fetch_refspec_str)
{
	struct refspec *refspec;

	refspec = parse_refspec_internal(1, &fetch_refspec_str, 1, 1);
	free_refspec(1, refspec);
	return !!refspec;
}

struct refspec *parse_fetch_refspec(int nr_refspec, const char **refspec)
{
	return parse_refspec_internal(nr_refspec, refspec, 1, 0);
}

struct refspec *parse_push_refspec(int nr_refspec, const char **refspec)
{
	return parse_refspec_internal(nr_refspec, refspec, 0, 0);
}

void free_refspec(int nr_refspec, struct refspec *refspec)
{
	int i;

	if (!refspec)
		return;

	for (i = 0; i < nr_refspec; i++) {
		free(refspec[i].src);
		free(refspec[i].dst);
	}
	free(refspec);
}

debug log:

solving ecb0bdff3 ...
found ecb0bdff3 in https://public-inbox.org/git/20180514215626.164960-2-bmwill@google.com/

applying [1/1] https://public-inbox.org/git/20180514215626.164960-2-bmwill@google.com/
diff --git a/refspec.c b/refspec.c
new file mode 100644
index 000000000..ecb0bdff3

Checking patch refspec.c...
1:174: new blank line at EOF.
+
Applied patch refspec.c cleanly.
warning: 1 line adds whitespace errors.

index at:
100644 ecb0bdff3af8ec82c117c2a71a92f92ddbd9985c	refspec.c

git@vger.kernel.org list mirror (unofficial, one of many)

Archives are clonable:
	git clone --mirror https://public-inbox.org/git
	git clone --mirror http://ou63pmih66umazou.onion/git
	git clone --mirror http://czquwvybam4bgbro.onion/git
	git clone --mirror http://hjrcffqmbrq6wope.onion/git

Newsgroups are available over NNTP:
	nntp://news.public-inbox.org/inbox.comp.version-control.git
	nntp://ou63pmih66umazou.onion/inbox.comp.version-control.git
	nntp://czquwvybam4bgbro.onion/inbox.comp.version-control.git
	nntp://hjrcffqmbrq6wope.onion/inbox.comp.version-control.git
	nntp://news.gmane.org/gmane.comp.version-control.git

 note: .onion URLs require Tor: https://www.torproject.org/

AGPL code for this site: git clone https://public-inbox.org/ public-inbox