439d3a17b6
In dd4b732df7 ("upload-pack: send part of packfile response as uri",
2020-06-10), the git http-fetch code learned how to take ac --packfile
option. This option takes an argument, which is the name of a packfile
hash, and parses it using parse_oid_hex. It does so before calling
setup_git_directory.
However, in a SHA-256 repository this fails to work, since we have not
set the hash algorithm in use and parse_oid_hex fails as a consequence.
To ensure that we can parse packfile hashes of the right length, let's
set up the git directory before we start parsing arguments.
Since we still want to allow the invocation of -h to print the help when
we're not in a repository, gracefully handle us being outside of one and
produce an error after argument parsing has finished.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Reviewed-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
141 lines
3.4 KiB
C
141 lines
3.4 KiB
C
#include "cache.h"
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#include "config.h"
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#include "exec-cmd.h"
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#include "http.h"
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#include "walker.h"
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static const char http_fetch_usage[] = "git http-fetch "
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"[-c] [-t] [-a] [-v] [--recover] [-w ref] [--stdin | --packfile=hash | commit-id] url";
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static int fetch_using_walker(const char *raw_url, int get_verbosely,
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int get_recover, int commits, char **commit_id,
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const char **write_ref, int commits_on_stdin)
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{
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char *url = NULL;
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struct walker *walker;
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int rc;
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str_end_url_with_slash(raw_url, &url);
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http_init(NULL, url, 0);
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walker = get_http_walker(url);
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walker->get_verbosely = get_verbosely;
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walker->get_recover = get_recover;
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walker->get_progress = 0;
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rc = walker_fetch(walker, commits, commit_id, write_ref, url);
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if (commits_on_stdin)
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walker_targets_free(commits, commit_id, write_ref);
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if (walker->corrupt_object_found) {
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fprintf(stderr,
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"Some loose object were found to be corrupt, but they might be just\n"
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"a false '404 Not Found' error message sent with incorrect HTTP\n"
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"status code. Suggest running 'git fsck'.\n");
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}
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walker_free(walker);
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http_cleanup();
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free(url);
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return rc;
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}
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static void fetch_single_packfile(struct object_id *packfile_hash,
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const char *url) {
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struct http_pack_request *preq;
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struct slot_results results;
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int ret;
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http_init(NULL, url, 0);
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preq = new_direct_http_pack_request(packfile_hash->hash, xstrdup(url));
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if (preq == NULL)
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die("couldn't create http pack request");
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preq->slot->results = &results;
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preq->generate_keep = 1;
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if (start_active_slot(preq->slot)) {
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run_active_slot(preq->slot);
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if (results.curl_result != CURLE_OK) {
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die("Unable to get pack file %s\n%s", preq->url,
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curl_errorstr);
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}
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} else {
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die("Unable to start request");
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}
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if ((ret = finish_http_pack_request(preq)))
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die("finish_http_pack_request gave result %d", ret);
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release_http_pack_request(preq);
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http_cleanup();
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}
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int cmd_main(int argc, const char **argv)
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{
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int commits_on_stdin = 0;
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int commits;
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const char **write_ref = NULL;
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char **commit_id;
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int arg = 1;
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int get_verbosely = 0;
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int get_recover = 0;
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int packfile = 0;
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int nongit;
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struct object_id packfile_hash;
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setup_git_directory_gently(&nongit);
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while (arg < argc && argv[arg][0] == '-') {
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const char *p;
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if (argv[arg][1] == 't') {
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} else if (argv[arg][1] == 'c') {
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} else if (argv[arg][1] == 'a') {
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} else if (argv[arg][1] == 'v') {
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get_verbosely = 1;
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} else if (argv[arg][1] == 'w') {
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write_ref = &argv[arg + 1];
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arg++;
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} else if (argv[arg][1] == 'h') {
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usage(http_fetch_usage);
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} else if (!strcmp(argv[arg], "--recover")) {
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get_recover = 1;
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} else if (!strcmp(argv[arg], "--stdin")) {
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commits_on_stdin = 1;
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} else if (skip_prefix(argv[arg], "--packfile=", &p)) {
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const char *end;
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packfile = 1;
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if (parse_oid_hex(p, &packfile_hash, &end) || *end)
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die(_("argument to --packfile must be a valid hash (got '%s')"), p);
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}
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arg++;
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}
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if (argc != arg + 2 - (commits_on_stdin || packfile))
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usage(http_fetch_usage);
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if (nongit)
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die(_("not a git repository"));
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git_config(git_default_config, NULL);
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if (packfile) {
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fetch_single_packfile(&packfile_hash, argv[arg]);
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return 0;
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}
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if (commits_on_stdin) {
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commits = walker_targets_stdin(&commit_id, &write_ref);
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} else {
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commit_id = (char **) &argv[arg++];
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commits = 1;
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}
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return fetch_using_walker(argv[arg], get_verbosely, get_recover,
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commits, commit_id, write_ref,
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commits_on_stdin);
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}
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