diff options
Diffstat (limited to 'src/main.c')
| -rw-r--r-- | src/main.c | 173 |
1 files changed, 0 insertions, 173 deletions
diff --git a/src/main.c b/src/main.c deleted file mode 100644 index 5c04467..0000000 --- a/src/main.c +++ /dev/null @@ -1,173 +0,0 @@ -#include "arena.h" -#include "die.h" -#include "strutil.h" -#include "creole.h" - -// #include <assert.h> -#include <errno.h> // errno, EEXIST -#include <git2.h> // git_* -#include <stdbool.h> // false -#include <stdio.h> -#include <stdlib.h> // EXIT_SUCCESS -#include <sys/stat.h> // mkdir -#include <sys/types.h> // mode_t - -void xmkdir(const char *path, mode_t mode, bool exist_ok) { - if (mkdir(path, mode) < 0) { - if (exist_ok && errno == EEXIST) { - return; - } else { - die_errno("failed to mkdir %s", path); - } - } -} - -void process_other_file(const char *path, const char *source, size_t source_len) { - FILE *out = fopen(path, "w"); - printf("Copying: %s\n", path); - if (out == NULL) { - die_errno("failed to open %s for writing", path); - } - if (fwrite(source, 1, source_len, out) < source_len) { - die_errno("failed to write content to %s\n", path); - } - fclose(out); -} - -void process_markup_file(struct arena *a, const char *path, const char *source, size_t source_len) { - char *out_path = replace_suffix(a, path, ".txt", ".html"); - printf("Generating: %s\n", out_path); - FILE *out = fopen(out_path, "w"); - if (out == NULL) { - die_errno("failed to open %s for writing", path); - } - render_creole(out, source, source_len); - fclose(out); -} - -void process_dir(const char *path) { - xmkdir(path, 0755, false); -} - -void list_tree(struct arena *a, struct git_repository *repo, struct git_tree *tree, const char *prefix) { - // Grab a snapshot of the arena. - // All memory allocated within the arena in this subcalltree will be freed. - // This is effectively the same as allocating a new arena for each call to list_tree. - struct arena snapshot = *a; - - size_t tree_count = git_tree_entrycount(tree); - for (size_t i = 0; i < tree_count; ++i) { - // Read the entry. - const struct git_tree_entry *entry; - if ((entry = git_tree_entry_byindex(tree, i)) == NULL) { - die("read tree item"); - } - - // Construct path to entry. - const char *entry_out_path = joinpath(a, prefix, git_tree_entry_name(entry)); - - // entry->obj fail on submodules. just ignore them. - struct git_object *obj; - if (git_tree_entry_to_object(&obj, repo, entry) == 0) { - git_object_t type = git_object_type(obj); - switch (type) { - case GIT_OBJECT_BLOB: { - struct git_blob *blob = (struct git_blob *)obj; - const char *source = git_blob_rawcontent(blob); - if (source == NULL) { - die_git("get source for blob %s", git_oid_tostr_s(git_object_id(obj))); - } - size_t source_len = git_blob_rawsize(blob); - if (endswith(entry_out_path, ".txt") && !git_blob_is_binary(blob)) { - process_markup_file(a, entry_out_path, source, source_len); - } else { - process_other_file(entry_out_path, source, source_len); - } - git_object_free(obj); - } break; - case GIT_OBJECT_TREE: { - process_dir(entry_out_path); - list_tree(a, repo, (struct git_tree *)obj, entry_out_path); - git_object_free(obj); - } break; - default: { - // Ignore whatever weird thing this is. - git_object_free(obj); - } break; - } - } - } - - // Restore snapshot. - *a = snapshot; -} - -int main(int argc, char *argv[]) -{ - if (argc != 3) { - die("Usage: %s git-path out-path", argv[0]); - } - char *git_path = argv[1]; - char *out_path = argv[2]; - - // Initialize libgit. Note that calling git_libgit2_shutdown is not - // necessary, as per this snippet from the documentation: - // - // > Usually you don’t need to call the shutdown function as the operating - // > system will take care of reclaiming resources, but if your - // > application uses libgit2 in some areas which are not usually active, - // > you can use - // - // That's good news! - if (git_libgit2_init() < 0) { - die_git("initialize libgit"); - } - - // Do not search outside the git repository. GIT_CONFIG_LEVEL_APP is the highest level currently. - // for (int i = 1; i <= GIT_CONFIG_LEVEL_APP; i++) { - // if (git_libgit2_opts(GIT_OPT_SET_SEARCH_PATH, i, "") < 0) { - // die_git("set search path"); - // } - // } - - // Don't require the repository to be owned by the current user. - git_libgit2_opts(GIT_OPT_SET_OWNER_VALIDATION, 0); - - struct git_repository *repo; - if (git_repository_open_ext(&repo, git_path, GIT_REPOSITORY_OPEN_NO_SEARCH, NULL) < 0) { - die_git("open repository"); - } - - // Find HEAD. - struct git_object *head; - const struct git_oid *head_id; - if (git_revparse_single(&head, repo, "HEAD") < 0) { - die_git("parse HEAD"); - } - head_id = git_object_id(head); - git_object_free(head); - - // Get a handle to the tree at head. - struct git_commit *commit; - if (git_commit_lookup(&commit, repo, head_id) < 0) { - die_git("look up head commit"); - } - struct git_tree *tree; - if (git_commit_tree(&tree, commit) < 0) { - die_git("get tree for commit %s", git_oid_tostr_s(git_commit_id(commit))); - } - - // Create the initial output directory. - xmkdir(out_path, 0755, true); - - struct arena a = arena_create(1024); - list_tree(&a, repo, tree, out_path); -#ifndef NDEBUG - arena_destroy(&a); -#endif - -#ifndef NDEBUG - git_libgit2_shutdown(); -#endif - return EXIT_SUCCESS; -} |