597 lines
19 KiB
C++
597 lines
19 KiB
C++
#include "calculator_c_interface_lib.h"
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//#include <git2/common.h>
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#include <QMap>
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#include <QString>
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#include <QDir>
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#include <mutex>
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#include <git2.h>
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#include <stdio.h>
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#include <stdint.h>
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static QMap<QString, git_repository *> customerRepoMap;
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static std::mutex m;
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static char const *user = NULL;
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static char const *pass = NULL;
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#ifndef _WIN32
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# include <unistd.h>
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#endif
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#include <errno.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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// see https://libgit2.org/libgit2/ex/HEAD/checkout.html
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/* Define t/he printf format specifier to use for size_t output */
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#if defined(_MSC_VER) || defined(__MINGW32__)
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# define PRIuZ "Illu"
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# define PRIxZ "Illx"
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# define PRIdZ "Illd"
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#else
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# define PRIuZ "zu"
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# define PRIxZ "zx"
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# define PRIdZ "zd"
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#endif
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typedef struct {
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unsigned int force : 1;
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unsigned int progress : 1;
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unsigned int perf : 1;
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} checkout_options;
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int cred_acquire_cb(git_credential **out,
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const char *url,
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const char *username_from_url,
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unsigned int allowed_types,
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void *payload)
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{
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char const *username = user, *password = pass;
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fprintf(stderr, "%s:%d: opened repository %s %s\n", __func__, __LINE__, username, password);
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Q_UNUSED(url);
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Q_UNUSED(username_from_url);
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Q_UNUSED(payload);
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int error = -1;
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if (allowed_types & GIT_CREDENTIAL_USERPASS_PLAINTEXT) {
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error = git_credential_userpass_plaintext_new(out, username, password);
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} else {
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fprintf(stderr, "GIT_CREDENTIAL_USERPASS_PLAINTEXT not supported by protocol (allowed_types=%08x)\n", allowed_types);
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}
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return error;
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}
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static bool check(int error, const char *message, const char *extra) {
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const git_error *lg2err;
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const char *lg2msg = "", *lg2spacer = "";
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if (!error) {
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return true;
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}
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if ((lg2err = git_error_last()) != NULL && lg2err->message != NULL) {
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lg2msg = lg2err->message;
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lg2spacer = " - ";
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}
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if (extra)
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fprintf(stderr, "%s '%s' [%d]%s%s\n",
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message, extra, error, lg2spacer, lg2msg);
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else
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fprintf(stderr, "%s [%d]%s%s\n",
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message, error, lg2spacer, lg2msg);
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// exit(1);
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return false;
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}
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static void print_checkout_progress(const char *path, size_t completed_steps, size_t total_steps, void *payload) {
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(void)payload;
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if (path == NULL) {
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printf("checkout started: %" PRIuZ " steps\n", total_steps);
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} else {
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printf("checkout: %s %" PRIuZ "/%" PRIuZ "\n", path, completed_steps, total_steps);
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}
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}
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static void print_perf_data(const git_checkout_perfdata *perfdata, void *payload) {
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(void)payload;
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printf("perf: stat: %" PRIuZ " mkdir: %" PRIuZ " chmod: %" PRIuZ "\n",
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perfdata->stat_calls, perfdata->mkdir_calls, perfdata->chmod_calls);
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}
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static int resolve_refish(git_annotated_commit **commit, git_repository *repo, const char *refish)
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{
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git_reference *ref;
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git_object *obj;
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int err = 0;
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assert(commit != NULL);
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err = git_reference_dwim(&ref, repo, refish);
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if (err == GIT_OK) {
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git_annotated_commit_from_ref(commit, repo, ref);
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git_reference_free(ref);
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return 0;
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}
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err = git_revparse_single(&obj, repo, refish);
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if (err == GIT_OK) {
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err = git_annotated_commit_lookup(commit, repo, git_object_id(obj));
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git_object_free(obj);
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}
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return err;
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}
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static int perform_checkout_ref(git_repository *repo,
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git_annotated_commit *target,
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const char *target_ref, checkout_options *opts) {
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git_checkout_options checkout_opts;
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git_reference *ref = NULL, *branch = NULL;
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git_commit *target_commit = NULL;
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int err;
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if ((err = git_checkout_options_init(&checkout_opts, GIT_CHECKOUT_OPTIONS_VERSION)) < 0) {
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fprintf(stderr, "error checkout options init %s\n", git_error_last()->message);
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return err;
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}
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// Setup our checkout options from the parsed options
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checkout_opts.checkout_strategy = GIT_CHECKOUT_SAFE;
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// if (opts->force)
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// checkout_opts.checkout_strategy = GIT_CHECKOUT_FORCE;
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// if (opts->progress)
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// checkout_opts.progress_cb = print_checkout_progress;
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// if (opts->perf)
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// checkout_opts.perfdata_cb = print_perf_data;
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// Grab the commit we're interested to move to
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err = git_commit_lookup(&target_commit, repo, git_annotated_commit_id(target));
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if (err != 0) {
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fprintf(stderr, "failed to lookup commit: %s\n", git_error_last()->message);
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goto cleanup;
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}
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// Perform the checkout so the workdir corresponds to what target_commit contains.
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// Note that it's okay to pass a git_commit here, because it will be peeled to a tree.
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err = git_checkout_tree(repo, (const git_object *)target_commit, &checkout_opts);
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if (err != 0) {
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fprintf(stderr, "failed to checkout tree: %s\n", git_error_last()->message);
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goto cleanup;
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}
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// Now that the checkout has completed, we have to update HEAD.
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// Depending on the "origin" of target (ie. it's an OID or a branch name), we might need to detach HEAD.
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if (git_annotated_commit_ref(target)) {
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const char *target_head;
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if ((err = git_reference_lookup(&ref, repo, git_annotated_commit_ref(target))) < 0)
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goto error;
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if (git_reference_is_remote(ref)) {
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if ((err = git_branch_create_from_annotated(&branch, repo, target_ref, target, 0)) < 0)
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goto error;
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target_head = git_reference_name(branch);
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} else {
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target_head = git_annotated_commit_ref(target);
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}
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err = git_repository_set_head(repo, target_head);
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} else {
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err = git_repository_set_head_detached_from_annotated(repo, target);
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}
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error:
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if (err != 0) {
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fprintf(stderr, "failed to update HEAD reference: %s\n", git_error_last()->message);
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goto cleanup;
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}
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cleanup:
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git_commit_free(target_commit);
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git_reference_free(branch);
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git_reference_free(ref);
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return err;
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}
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static int guess_refish(git_annotated_commit **out, git_repository *repo, const char *ref) {
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git_strarray remotes = { NULL, 0 };
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git_reference *remote_ref = NULL;
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int error;
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size_t i;
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if ((error = git_remote_list(&remotes, repo)) < 0) {
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fprintf(stderr, "error git_remote_list %s\n", git_error_last()->message);
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goto out;
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}
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for (i = 0; i < remotes.count; i++) {
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char *refname = NULL;
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size_t reflen;
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reflen = snprintf(refname, 0, "refs/remotes/%s/%s", remotes.strings[i], ref);
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if ((refname = (char *)malloc(reflen + 1)) == NULL) {
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error = -1;
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fprintf(stderr, "%s:%d malloc failed\n", __func__, __LINE__);
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goto next;
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}
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snprintf(refname, reflen + 1, "refs/remotes/%s/%s", remotes.strings[i], ref);
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if ((error = git_reference_lookup(&remote_ref, repo, refname)) < 0) {
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fprintf(stderr, "git reference lookup %s\n", git_error_last()->message);
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goto next;
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}
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break;
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next:
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free(refname);
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refname = NULL;
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if (error < 0 && error != GIT_ENOTFOUND) {
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break;
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}
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}
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if (!remote_ref) {
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error = GIT_ENOTFOUND;
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goto out;
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}
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if ((error = git_annotated_commit_from_ref(out, repo, remote_ref)) < 0)
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goto out;
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out:
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git_reference_free(remote_ref);
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git_strarray_dispose(&remotes);
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return error;
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}
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TariffCalculatorHandle NewTariffCalculator(void) {
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return new TariffCalculator();
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}
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void DeleteTariffCalculator(TariffCalculatorHandle handle) {
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delete handle;
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}
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int InitGitLibrary(void) {
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return git_libgit2_init();
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}
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int ShutdownGitLibrary(void) {
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for (auto key : customerRepoMap.keys()) {
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git_repository_free(customerRepoMap.value(key));
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}
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customerRepoMap.clear();
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return git_libgit2_shutdown();
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}
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int CloneRepository(char const *url, char const *local_path) {
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QString localRepoPath(QDir::cleanPath(QString(local_path) + QDir::separator() + ".git"));
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QDir localRepoDir(localRepoPath);
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if (localRepoDir.exists()) {
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fprintf(stderr, "local repository path %s already exists\n",
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localRepoPath.toUtf8().constData());
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return -1;
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}
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git_repository *out;
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git_clone_options opts;
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int res = 0;
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if ((res = git_clone_options_init(&opts, GIT_CLONE_OPTIONS_VERSION)) == 0) {
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opts.checkout_branch = "master";
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fprintf(stderr, "%s:%d %s %s\n", __func__, __LINE__, url, local_path);
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if ((res = git_clone(&out, url, local_path, &opts)) < 0) {
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git_error const *error = git_error_last();
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fprintf(stderr, "%s:%d error: %s\n", __func__, __LINE__, error->message);
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} else {
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QString localRepoPath = QDir::cleanPath(QString(local_path) + QDir::separator() + ".git");
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customerRepoMap.insert(localRepoPath, out);
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}
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} else {
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git_error const *error = git_error_last();
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fprintf(stderr, "%s:%d error: %s\n", __func__, __LINE__, error->message);
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}
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return res;
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}
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int CheckoutLocalBranch(char const *local_path, char const *branch_name) {
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int err = 0;
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checkout_options opts;
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git_repository_state_t state = GIT_REPOSITORY_STATE_NONE;
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git_annotated_commit *checkout_target = NULL;
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git_repository *repo = NULL;
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git_reference *branch_ref = NULL;
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QString localRepoPath(QDir::cleanPath(QString(local_path) + QDir::separator() + ".git"));
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QDir localRepoDir(localRepoPath);
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if (!localRepoDir.exists()) {
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fprintf(stderr, "local repository path %s does not exist\n",
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localRepoPath.toUtf8().constData());
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return -1;
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}
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if (!customerRepoMap.contains(localRepoPath)) {
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if ((err = git_repository_open(&repo, localRepoPath.toUtf8().constData())) != 0) {
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fprintf(stderr, "repository %s cannot be opened: %s\n",
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localRepoPath.toUtf8().constData(), git_error_last()->message);
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return -1;
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}
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customerRepoMap.insert(localRepoPath, repo);
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}
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if (customerRepoMap.contains(localRepoPath)) {
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repo = customerRepoMap[localRepoPath];
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// Make sure we're not about to checkout while something else is going on
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if ((state = (git_repository_state_t)git_repository_state(repo)) != GIT_REPOSITORY_STATE_NONE) {
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fprintf(stderr, "repository %s is in unexpected state %d\n",
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localRepoPath.toUtf8().constData(), state);
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err = -1;
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} else {
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fprintf(stderr, "repository %s is in state %d\n",
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localRepoPath.toUtf8().constData(), state);
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if ((err = resolve_refish(&checkout_target, repo, branch_name)) < 0 &&
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(err = guess_refish(&checkout_target, repo, branch_name)) < 0) {
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fprintf(stderr, "failed to resolve %s: %s\n", branch_name, git_error_last()->message);
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} else {
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if ((err = perform_checkout_ref(repo, checkout_target, branch_name, &opts)) == 0) {
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fprintf(stderr, "%s:%d checkout ok\n", __func__, __LINE__);
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if ((err = git_branch_lookup(&branch_ref, repo, branch_name, GIT_BRANCH_LOCAL)) != 0) {
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if (err == GIT_ENOTFOUND) {
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fprintf(stderr, "local branch %s not found\n", branch_name);
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} else {
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fprintf(stderr, "local branch %s not found: %s\n",
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branch_name, git_error_last()->message);
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}
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}
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}
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}
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}
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}
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if (branch_ref) {
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git_reference_free(branch_ref);
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}
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if (checkout_target) {
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git_annotated_commit_free(checkout_target);
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}
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return err;
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}
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int CommitFile(char const *local_path, char const *branch_name,
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char const *file_name, char const *comment) {
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assert(local_path != NULL);
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assert(branch_name != NULL);
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assert(file_name != NULL);
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assert(comment != NULL);
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fprintf(stderr, "%s %s %s %s\n",
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local_path, branch_name, file_name, comment);
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QString const currentWD = QDir::currentPath();
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QString localPath(local_path);
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if (!QDir(localPath).exists()) {
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fprintf(stderr, "local path %s for file %s does not exist\n",
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localPath.toUtf8().constData(), file_name);
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QDir::setCurrent(currentWD);
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return -1;
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}
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if (!QDir::setCurrent(localPath)) {
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fprintf(stderr, "can not set cwd path %s\n", localPath.toUtf8().constData());
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QDir::setCurrent(currentWD);
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return -1;
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}
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fprintf(stderr, "cwd %s\n", QDir::current().absolutePath().toUtf8().constData());
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git_repository *repo = NULL;
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int error = 0;
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QString localRepoPath(QDir::cleanPath(QString(local_path) + QDir::separator() + ".git"));
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QDir localRepoDir(localRepoPath);
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if (!localRepoDir.exists()) {
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fprintf(stderr, "local repository path %s does not exist\n",
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localRepoPath.toUtf8().constData());
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QDir::setCurrent(currentWD);
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return -1;
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}
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if (!customerRepoMap.contains(localRepoPath)) {
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if ((error = git_repository_open(&repo, localRepoPath.toUtf8().constData())) != 0) {
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fprintf(stderr, "repository %s cannot be opened: %s\n",
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localRepoPath.toUtf8().constData(), git_error_last()->message);
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QDir::setCurrent(currentWD);
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return -1;
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}
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customerRepoMap.insert(localRepoPath, repo);
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}
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git_oid commit_oid,tree_oid;
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git_tree *tree = NULL;
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git_index *index = NULL;
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git_object *parent = NULL;
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git_reference *ref = NULL;
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git_signature *signature = NULL;
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git_repository_state_t state = GIT_REPOSITORY_STATE_NONE;
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if (customerRepoMap.contains(localRepoPath)) {
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repo = customerRepoMap[localRepoPath];
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if (git_repository_head_unborn(repo) == 1) {
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fprintf(stderr, "HEAD unborn. Create first commit\n");
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return -1;
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}
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// Make sure we're not about to checkout while something else is going on
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if ((state = (git_repository_state_t)git_repository_state(repo)) != GIT_REPOSITORY_STATE_NONE) {
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fprintf(stderr, "repository %s is in unexpected state %d\n",
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localRepoPath.toUtf8().constData(), state);
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error = -1;
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} else {
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error = git_revparse_ext(&parent, &ref, repo, "HEAD");
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if (error == GIT_ENOTFOUND) {
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fprintf(stderr, "HEAD not found. Creating first commit\n");
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error = 0;
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} else if (error != 0) {
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const git_error *err = git_error_last();
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if (err) {
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fprintf(stderr, "ERROR %d: %s\n", err->klass, err->message);
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} else {
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fprintf(stderr, "ERROR %d: no detailed info\n", error);
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}
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}
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if (error == 0) {
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if (check(git_repository_index(&index, repo), "Could not open repository index", NULL) &&
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check(git_index_write_tree(&tree_oid, index), "Could not write tree", NULL) &&
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check(git_index_write(index), "Could not write index", NULL) &&
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check(git_tree_lookup(&tree, repo, &tree_oid), "Error looking up tree", NULL) &&
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check(git_signature_default(&signature, repo), "Error creating signature", NULL) &&
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check(git_commit_create_v(&commit_oid, repo, "HEAD", signature, signature,
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NULL, comment, tree, parent ? 1 : 0, parent),
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"Error creating commit", NULL)) {
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fprintf(stderr, "%s %s %s %s\n",
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local_path, branch_name, file_name, comment);
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fprintf(stderr, "git commit ok\n");
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}
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if (index) {
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git_index_free(index);
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}
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if (signature) {
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git_signature_free(signature);
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}
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if (tree) {
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git_tree_free(tree);
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}
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if (parent) {
|
|
git_object_free(parent);
|
|
}
|
|
if (ref) {
|
|
git_reference_free(ref);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
QDir::setCurrent(currentWD);
|
|
return error;
|
|
}
|
|
|
|
int PushLocalRepository(char const *local_path, char const *branch_name, char const *username, char const *password) {
|
|
git_repository *repo = NULL;
|
|
int error = -1;
|
|
|
|
fprintf(stderr, "%s:%d: %s %s\n", __func__, __LINE__, local_path, branch_name);
|
|
|
|
QString const currentWD = QDir::currentPath();
|
|
|
|
QString localRepoPath(QDir::cleanPath(QString(local_path) + QDir::separator() + ".git"));
|
|
QDir localRepoDir(localRepoPath);
|
|
|
|
if (!localRepoDir.exists()) {
|
|
fprintf(stderr, "local repository path %s does not exist\n",
|
|
localRepoPath.toUtf8().constData());
|
|
QDir::setCurrent(currentWD);
|
|
return -1;
|
|
}
|
|
|
|
if (!customerRepoMap.contains(localRepoPath)) {
|
|
if ((error = git_repository_open(&repo, localRepoPath.toUtf8().constData())) != 0) {
|
|
fprintf(stderr, "repository %s cannot be opened: %s\n",
|
|
localRepoPath.toUtf8().constData(), git_error_last()->message);
|
|
QDir::setCurrent(currentWD);
|
|
return -1;
|
|
}
|
|
customerRepoMap.insert(localRepoPath, repo);
|
|
}
|
|
|
|
fprintf(stderr, "%s:%d: opened repository\n", __func__, __LINE__);
|
|
|
|
git_repository_state_t state = GIT_REPOSITORY_STATE_NONE;
|
|
git_push_options options;
|
|
git_remote_callbacks callbacks;
|
|
git_remote* remote = NULL;
|
|
char refspec_[] = "refs/heads/master";
|
|
char *refspec = refspec_;
|
|
const git_strarray refspecs = {
|
|
&refspec,
|
|
1
|
|
};
|
|
|
|
std::lock_guard<std::mutex> lock(m);
|
|
|
|
user = username;
|
|
pass = password;
|
|
|
|
fprintf(stderr, "%s:%d: opened repository %s %s\n", __func__, __LINE__, user, pass);
|
|
|
|
if (customerRepoMap.contains(localRepoPath)) {
|
|
repo = customerRepoMap[localRepoPath];
|
|
|
|
// Make sure we're not about to checkout while something else is going on
|
|
if ((state = (git_repository_state_t)git_repository_state(repo)) != GIT_REPOSITORY_STATE_NONE) {
|
|
fprintf(stderr, "repository %s is in unexpected state %d\n",
|
|
localRepoPath.toUtf8().constData(), state);
|
|
} else {
|
|
if (check(git_remote_lookup(&remote, repo, "origin" ), "Unable to lookup remote", NULL)) {
|
|
if (check(git_remote_init_callbacks(&callbacks, GIT_REMOTE_CALLBACKS_VERSION),
|
|
"Error initializing remote callbacks", NULL)) {
|
|
callbacks.credentials = cred_acquire_cb;
|
|
if (check(git_push_options_init(&options, GIT_PUSH_OPTIONS_VERSION ),
|
|
"Error initializing push", NULL)) {
|
|
options.callbacks = callbacks;
|
|
if (check(git_remote_push(remote, &refspecs, &options), "Error pushing", NULL)) {
|
|
fprintf(stderr, "%s:%d: pushed %s (branch: %s)\n", __func__, __LINE__, local_path, branch_name);
|
|
error = 0;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (remote) {
|
|
git_remote_free(remote);
|
|
}
|
|
|
|
QDir::setCurrent(currentWD);
|
|
return error;
|
|
}
|
|
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|