added CheckoutBranch()
This commit is contained in:
parent
4101823f6e
commit
c2328b69f0
@ -33,6 +33,7 @@ int main(int argc, char *argv[])
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if (InitGitLibrary() > 0) {
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qCritical() << CloneRepository("https://git.mimbach49.de/GerhardHoffmann/customer_999.git", "C:\\tmp\\customer_999");
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qCritical() << CheckoutLocalBranch("C:\\tmp\\customer_999", "master");
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ShutdownGitLibrary();
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}
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#else
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@ -2,7 +2,9 @@ QT+=core
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TEMPLATE = lib
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DEFINES += CALCULATOR_C_INTERFACE_LIBRARY
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QMAKE_CXXFLAGS += -fPIC
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QMAKE_CXXFLAGS += -fPIC -std=c++20
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unix {
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LIBS += -L/usr/lib64 -lgit2
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@ -10,6 +12,7 @@ unix {
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win32 {
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INCLUDEPATH += C:\Users\G.Hoffmann\Downloads\libgit2-1.7.2\libgit2-1.7.2\include
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LIBS += -LC:\Users\G.Hoffmann\Downloads\libgit2-1.7.2\libgit2-1.7.2\build\Debug -lgit2
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}
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@ -1,13 +1,215 @@
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#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 <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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#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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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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@ -21,14 +223,29 @@ int InitGitLibrary(void) {
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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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@ -37,6 +254,9 @@ int CloneRepository(char const *url, char const *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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@ -45,6 +265,96 @@ int CloneRepository(char const *url, char const *local_path) {
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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 *file_name) {
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assert(local_path != NULL);
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assert(file_name != NULL);
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QString const currentWD = QDir::currentPath();
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QString localPath(path);
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if (!localPath.exists()) {
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fprintf(stderr, "local path %s for file %s does not exist\n",
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localRepoPath.toUtf8().constData(), file_name);
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return -1;
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}
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if (QDir::setCurrent(localPath)) {
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}
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QDir::setCurrent(currentWD);
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return 0;
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}
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#ifdef __cplusplus
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}
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#endif
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@ -13,13 +13,12 @@ extern "C" {
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TariffCalculatorHandle NewTariffCalculator(void) CALCULATOR_C_INTERFACE_LIB_EXPORT;
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void DeleteTariffCalculator(TariffCalculatorHandle handle) CALCULATOR_C_INTERFACE_LIB_EXPORT;
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// libgit2
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int InitGitLibrary(void) CALCULATOR_C_INTERFACE_LIB_EXPORT;
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int ShutdownGitLibrary(void) CALCULATOR_C_INTERFACE_LIB_EXPORT;
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int CloneRepository(char const *url, char const *local_path) CALCULATOR_C_INTERFACE_LIB_EXPORT;
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void DeleteTariffCalculator(TariffCalculatorHandle handle) CALCULATOR_C_INTERFACE_LIB_EXPORT;
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int CheckoutLocalBranch(char const *local_path, char const *branch) CALCULATOR_C_INTERFACE_LIB_EXPORT;
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int CommitFile(char const *local_path, char const *branch_name, char const *file_name) CALCULATOR_C_INTERFACE_LIB_EXPORT;
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#ifdef __cplusplus
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}
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Loading…
Reference in New Issue
Block a user