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https://github.com/atom/atom.git
synced 2026-01-25 06:48:28 -05:00
f22fedebcf
This prevents concurrent access to the same state from different worker threads. We needed to treat windowState specially because we explicitly want it to last beyond the life-span of a single context. So we store it as a static variable in `native.mm` and synchronize access with a static `NSLock`. Good enough for now.
282 lines
8.6 KiB
Plaintext
282 lines
8.6 KiB
Plaintext
#import "git.h"
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#import "include/git2.h"
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#import <Cocoa/Cocoa.h>
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namespace v8_extensions {
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class GitRepository : public CefBase {
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private:
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git_repository *repo;
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public:
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GitRepository(const char *pathInRepo) {
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if (git_repository_open_ext(&repo, pathInRepo, 0, NULL) != GIT_OK) {
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repo = NULL;
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}
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}
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~GitRepository() {
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Destroy();
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}
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void Destroy() {
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if (Exists()) {
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git_repository_free(repo);
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repo = NULL;
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}
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}
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BOOL Exists() {
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return repo != NULL;
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}
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CefRefPtr<CefV8Value> GetPath() {
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return CefV8Value::CreateString(git_repository_path(repo));
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}
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CefRefPtr<CefV8Value> GetHead() {
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git_reference *head;
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if (git_repository_head(&head, repo) == GIT_OK) {
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if (git_repository_head_detached(repo) == 1) {
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const git_oid* sha = git_reference_target(head);
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if (sha) {
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char oid[GIT_OID_HEXSZ + 1];
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git_oid_tostr(oid, GIT_OID_HEXSZ + 1, sha);
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git_reference_free(head);
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return CefV8Value::CreateString(oid);
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}
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}
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CefRefPtr<CefV8Value> result = CefV8Value::CreateString(git_reference_name(head));
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git_reference_free(head);
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return result;
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}
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return CefV8Value::CreateNull();
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}
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CefRefPtr<CefV8Value> IsIgnored(const char *path) {
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int ignored;
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if (git_ignore_path_is_ignored(&ignored, repo, path) == GIT_OK) {
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return CefV8Value::CreateBool(ignored == 1);
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}
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else {
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return CefV8Value::CreateBool(false);
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}
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}
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CefRefPtr<CefV8Value> GetStatus(const char *path) {
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unsigned int status = 0;
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if (git_status_file(&status, repo, path) == GIT_OK) {
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return CefV8Value::CreateInt(status);
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}
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else {
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return CefV8Value::CreateInt(0);
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}
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}
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CefRefPtr<CefV8Value> CheckoutHead(const char *path) {
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char *copiedPath = (char *)malloc(sizeof(char) * (strlen(path) + 1));
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strcpy(copiedPath, path);
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git_checkout_opts options = GIT_CHECKOUT_OPTS_INIT;
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options.checkout_strategy = GIT_CHECKOUT_FORCE;
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git_strarray paths;
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paths.count = 1;
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paths.strings = &copiedPath;
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options.paths = paths;
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int result = git_checkout_head(repo, &options);
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free(copiedPath);
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return CefV8Value::CreateBool(result == GIT_OK);
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}
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CefRefPtr<CefV8Value> GetDiffStats(const char *path) {
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git_reference *head;
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if (git_repository_head(&head, repo) != GIT_OK) {
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return CefV8Value::CreateNull();
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}
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const git_oid* sha = git_reference_target(head);
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git_commit *commit;
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int commitStatus = git_commit_lookup(&commit, repo, sha);
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git_reference_free(head);
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if (commitStatus != GIT_OK) {
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return CefV8Value::CreateNull();
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}
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git_tree *tree;
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int treeStatus = git_commit_tree(&tree, commit);
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git_commit_free(commit);
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if (treeStatus != GIT_OK) {
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return CefV8Value::CreateNull();
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}
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char *copiedPath = (char *)malloc(sizeof(char) * (strlen(path) + 1));
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strcpy(copiedPath, path);
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git_diff_options options = GIT_DIFF_OPTIONS_INIT;
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git_strarray paths;
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paths.count = 1;
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paths.strings = &copiedPath;
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options.pathspec = paths;
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options.context_lines = 1;
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options.flags = GIT_DIFF_DISABLE_PATHSPEC_MATCH;
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git_diff_list *diffs;
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int diffStatus = git_diff_tree_to_workdir(&diffs, repo, tree, &options);
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free(copiedPath);
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if (diffStatus != GIT_OK || git_diff_num_deltas(diffs) != 1) {
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return CefV8Value::CreateNull();
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}
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git_diff_patch *patch;
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int patchStatus = git_diff_get_patch(&patch, NULL, diffs, 0);
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git_diff_list_free(diffs);
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if (patchStatus != GIT_OK) {
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return CefV8Value::CreateNull();
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}
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int added = 0;
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int deleted = 0;
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int hunks = git_diff_patch_num_hunks(patch);
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for (int i = 0; i < hunks; i++) {
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int lines = git_diff_patch_num_lines_in_hunk(patch, i);
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for (int j = 0; j < lines; j++) {
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char lineType;
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if (git_diff_patch_get_line_in_hunk(&lineType, NULL, NULL, NULL, NULL, patch, i, j) == GIT_OK) {
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switch (lineType) {
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case GIT_DIFF_LINE_ADDITION:
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added++;
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break;
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case GIT_DIFF_LINE_DELETION:
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deleted++;
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break;
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}
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}
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}
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}
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git_diff_patch_free(patch);
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CefRefPtr<CefV8Value> result = CefV8Value::CreateObject(NULL);
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result->SetValue("added", CefV8Value::CreateInt(added), V8_PROPERTY_ATTRIBUTE_NONE);
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result->SetValue("deleted", CefV8Value::CreateInt(deleted), V8_PROPERTY_ATTRIBUTE_NONE);
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return result;
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}
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CefRefPtr<CefV8Value> IsSubmodule(const char *path) {
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BOOL isSubmodule = false;
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git_index* index;
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if (git_repository_index(&index, repo) == GIT_OK) {
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const git_index_entry *entry = git_index_get_bypath(index, path, 0);
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isSubmodule = entry != NULL && (entry->mode & S_IFMT) == GIT_FILEMODE_COMMIT;
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git_index_free(index);
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}
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return CefV8Value::CreateBool(isSubmodule);
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}
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void RefreshIndex() {
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git_index* index;
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if (git_repository_index(&index, repo) == GIT_OK) {
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git_index_read(index);
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git_index_free(index);
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}
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}
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IMPLEMENT_REFCOUNTING(GitRepository);
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};
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Git::Git() : CefV8Handler() {
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}
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void Git::CreateContextBinding(CefRefPtr<CefV8Context> context) {
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const char* methodNames[] = {
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"getRepository", "getHead", "getPath", "isIgnored", "getStatus", "checkoutHead",
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"getDiffStats", "isSubmodule", "refreshIndex", "destroy"
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};
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CefRefPtr<CefV8Value> nativeObject = CefV8Value::CreateObject(NULL);
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int arrayLength = sizeof(methodNames) / sizeof(const char *);
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for (int i = 0; i < arrayLength; i++) {
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const char *functionName = methodNames[i];
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CefRefPtr<CefV8Value> function = CefV8Value::CreateFunction(functionName, this);
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nativeObject->SetValue(functionName, function, V8_PROPERTY_ATTRIBUTE_NONE);
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}
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CefRefPtr<CefV8Value> global = context->GetGlobal();
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global->SetValue("$git", nativeObject, V8_PROPERTY_ATTRIBUTE_NONE);
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}
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bool Git::Execute(const CefString& name,
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CefRefPtr<CefV8Value> object,
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const CefV8ValueList& arguments,
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CefRefPtr<CefV8Value>& retval,
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CefString& exception) {
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if (name == "getRepository") {
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GitRepository *repository = new GitRepository(arguments[0]->GetStringValue().ToString().c_str());
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if (repository->Exists()) {
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CefRefPtr<CefBase> userData = repository;
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retval = CefV8Value::CreateObject(NULL);
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retval->SetUserData(userData);
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} else {
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retval = CefV8Value::CreateNull();
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}
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return true;
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}
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if (name == "getHead") {
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GitRepository *userData = (GitRepository *)object->GetUserData().get();
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retval = userData->GetHead();
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return true;
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}
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if (name == "getPath") {
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GitRepository *userData = (GitRepository *)object->GetUserData().get();
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retval = userData->GetPath();
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return true;
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}
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if (name == "isIgnored") {
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GitRepository *userData = (GitRepository *)object->GetUserData().get();
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retval = userData->IsIgnored(arguments[0]->GetStringValue().ToString().c_str());
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return true;
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}
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if (name == "getStatus") {
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GitRepository *userData = (GitRepository *)object->GetUserData().get();
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retval = userData->GetStatus(arguments[0]->GetStringValue().ToString().c_str());
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return true;
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}
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if (name == "checkoutHead") {
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GitRepository *userData = (GitRepository *)object->GetUserData().get();
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retval = userData->CheckoutHead(arguments[0]->GetStringValue().ToString().c_str());
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return true;
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}
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if (name == "getDiffStats") {
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GitRepository *userData = (GitRepository *)object->GetUserData().get();
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retval = userData->GetDiffStats(arguments[0]->GetStringValue().ToString().c_str());
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return true;
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}
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if (name == "isSubmodule") {
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GitRepository *userData = (GitRepository *)object->GetUserData().get();
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retval = userData->IsSubmodule(arguments[0]->GetStringValue().ToString().c_str());
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return true;
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}
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if (name == "refreshIndex") {
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GitRepository *userData = (GitRepository *)object->GetUserData().get();
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userData->RefreshIndex();
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return true;
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}
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if (name == "destroy") {
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GitRepository *userData = (GitRepository *)object->GetUserData().get();
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userData->Destroy();
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return true;
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}
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return false;
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}
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}
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