f4609b896f
This also bumps the stable nixpkgs to 20.09 as of 2020-11-21, because there is some breakage in the git build related to the netrc credentials helper which someone has taken care of in nixpkgs. The stable channel is not used for anything other than git, so this should be fine. Change-Id: I3575a19dab09e1e9556cf8231d717de9890484fb
116 lines
2.7 KiB
C
116 lines
2.7 KiB
C
#include "cache.h"
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#include "repository.h"
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#include "refs.h"
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#include "remote.h"
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#include "strvec.h"
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#include "ls-refs.h"
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#include "pkt-line.h"
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#include "config.h"
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/*
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* Check if one of the prefixes is a prefix of the ref.
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* If no prefixes were provided, all refs match.
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*/
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static int ref_match(const struct strvec *prefixes, const char *refname)
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{
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int i;
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if (!prefixes->nr)
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return 1; /* no restriction */
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for (i = 0; i < prefixes->nr; i++) {
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const char *prefix = prefixes->v[i];
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if (starts_with(refname, prefix))
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return 1;
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}
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return 0;
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}
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struct ls_refs_data {
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unsigned peel;
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unsigned symrefs;
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struct strvec prefixes;
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};
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static int send_ref(const char *refname, const struct object_id *oid,
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int flag, void *cb_data)
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{
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struct ls_refs_data *data = cb_data;
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const char *refname_nons = strip_namespace(refname);
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struct strbuf refline = STRBUF_INIT;
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if (ref_is_hidden(refname_nons, refname))
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return 0;
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if (!ref_match(&data->prefixes, refname_nons))
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return 0;
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strbuf_addf(&refline, "%s %s", oid_to_hex(oid), refname_nons);
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if (data->symrefs && flag & REF_ISSYMREF) {
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struct object_id unused;
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const char *symref_target = resolve_ref_unsafe(refname, 0,
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&unused,
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&flag);
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if (!symref_target)
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die("'%s' is a symref but it is not?", refname);
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strbuf_addf(&refline, " symref-target:%s",
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strip_namespace(symref_target));
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}
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if (data->peel) {
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struct object_id peeled;
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if (!peel_ref(refname, &peeled))
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strbuf_addf(&refline, " peeled:%s", oid_to_hex(&peeled));
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}
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strbuf_addch(&refline, '\n');
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packet_write(1, refline.buf, refline.len);
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strbuf_release(&refline);
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return 0;
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}
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static int ls_refs_config(const char *var, const char *value, void *data)
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{
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/*
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* We only serve fetches over v2 for now, so respect only "uploadpack"
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* config. This may need to eventually be expanded to "receive", but we
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* don't yet know how that information will be passed to ls-refs.
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*/
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return parse_hide_refs_config(var, value, "uploadpack");
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}
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int ls_refs(struct repository *r, struct strvec *keys,
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struct packet_reader *request)
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{
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struct ls_refs_data data;
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memset(&data, 0, sizeof(data));
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git_config(ls_refs_config, NULL);
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while (packet_reader_read(request) == PACKET_READ_NORMAL) {
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const char *arg = request->line;
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const char *out;
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if (!strcmp("peel", arg))
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data.peel = 1;
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else if (!strcmp("symrefs", arg))
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data.symrefs = 1;
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else if (skip_prefix(arg, "ref-prefix ", &out))
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strvec_push(&data.prefixes, out);
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}
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if (request->status != PACKET_READ_FLUSH)
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die(_("expected flush after ls-refs arguments"));
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head_ref_namespaced(send_ref, &data);
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for_each_namespaced_ref(send_ref, &data);
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packet_flush(1);
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strvec_clear(&data.prefixes);
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return 0;
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}
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