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git: provide symref extension

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This commit is contained in:
Ori Bernstein 2024-07-23 23:42:59 +00:00
parent 703bcae2ed
commit 487c2dc215
2 changed files with 32 additions and 7 deletions
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4
sys/src/cmd/git/ref.c
View file

@ -386,8 +386,8 @@ readref(Hash *h, char *ref)
return -1;
found:
if(r == -1 && strstr(s, "ref: ") == s)
r = readref(h, s + strlen("ref: "));
if(r == -1 && strncmp(s, "ref: ", 5) == 0)
r = readref(h, s + 5);
return r;
}

35
sys/src/cmd/git/serve.c
View file

@ -21,20 +21,45 @@ fail(Conn *c, char *fmt, ...)
sysfatal("%s", msg);
}
char*
gethead(Hash *h, char *ref, int nref)
{
int fd, n;
char *s;
if((fd = open(".git/HEAD", OREAD)) == -1)
return nil;
if((n = readn(fd, ref, nref-1)) == -1)
return nil;
while(n > 0 && ref[n-1] == '\n' || ref[n-1] == '\t' || ref[n-1] == ' ')
n--;
if(strncmp(ref, "ref: ", 5) != 0)
return nil;
s = ref+5;
if(resolveref(h, s) == -1)
return nil;
return s;
}
int
showrefs(Conn *c)
{
int i, ret, nrefs;
char **names, *s, buf[256];
int i, r, ret, nrefs;
Hash head, *refs;
char **names;
ret = -1;
nrefs = 0;
refs = nil;
names = nil;
if(resolveref(&head, "HEAD") != -1)
if(fmtpkt(c, "%H HEAD\n", head) == -1)
goto error;
s = gethead(&head, buf, sizeof(buf));
if(s != nil)
r = fmtpkt(c, "%H HEAD%csymref=HEAD:%s\n", head, 0, s);
else
r = fmtpkt(c, "%H HEAD\n", head);
if(r == -1)
goto error;
if((nrefs = listrefs(&refs, &names)) == -1)
fail(c, "listrefs: %r");