/* * libgit2 "add" example - shows how to modify the index * * Written by the libgit2 contributors * * To the extent possible under law, the author(s) have dedicated all copyright * and related and neighboring rights to this software to the public domain * worldwide. This software is distributed without any warranty. * * You should have received a copy of the CC0 Public Domain Dedication along * with this software. If not, see * <http://creativecommons.org/publicdomain/zero/1.0/>. */ #include "common.h" #include <assert.h> /** * The following example demonstrates how to add files with libgit2. * * It will use the repository in the current working directory, and act * on files passed as its parameters. * * Recognized options are: * -v/--verbose: show the file's status after acting on it. * -n/--dry-run: do not actually change the index. * -u/--update: update the index instead of adding to it. */ enum print_options { SKIP = 1, VERBOSE = 2, UPDATE = 4, }; struct print_payload { enum print_options options; git_repository *repo; }; /* Forward declarations for helpers */ static void parse_opts(int *options, int *count, int argc, char *argv[]); void init_array(git_strarray *array, int argc, char **argv); int print_matched_cb(const char *path, const char *matched_pathspec, void *payload); int lg2_add(git_repository *repo, int argc, char** argv) { git_index_matched_path_cb matched_cb = NULL; git_index *index; git_strarray array = {0}; int options = 0, count = 0; struct print_payload payload = {0}; parse_opts(&options, &count, argc, argv); init_array(&array, argc-count, argv+count); check_lg2(git_repository_index(&index, repo), "Could not open repository index", NULL); /* Setup a callback if the requested options need it */ if ((options & VERBOSE) || (options & SKIP)) { matched_cb = &print_matched_cb; } /* Perform the requested action with the index and files */ payload.options = options; payload.repo = repo; if (options & UPDATE) { git_index_update_all(index, &array, matched_cb, &payload); } else { git_index_add_all(index, &array, 0, matched_cb, &payload); } /* Cleanup memory */ git_index_write(index); git_index_free(index); return 0; } /* * This callback is called for each file under consideration by * git_index_(update|add)_all above. * It makes uses of the callback's ability to abort the action. */ int print_matched_cb(const char *path, const char *matched_pathspec, void *payload) { struct print_payload p = *(struct print_payload*)(payload); int ret; unsigned status; (void)matched_pathspec; /* Get the file status */ if (git_status_file(&status, p.repo, path)) { return -1; } if ((status & GIT_STATUS_WT_MODIFIED) || (status & GIT_STATUS_WT_NEW)) { printf("add '%s'\n", path); ret = 0; } else { ret = 1; } if ((p.options & SKIP)) { ret = 1; } return ret; } void init_array(git_strarray *array, int argc, char **argv) { unsigned int i; array->count = argc; array->strings = calloc(array->count, sizeof(char *)); assert(array->strings != NULL); for (i = 0; i < array->count; i++) { array->strings[i] = argv[i]; } return; } void print_usage(void) { fprintf(stderr, "usage: add [options] [--] file-spec [file-spec] [...]\n\n"); fprintf(stderr, "\t-n, --dry-run dry run\n"); fprintf(stderr, "\t-v, --verbose be verbose\n"); fprintf(stderr, "\t-u, --update update tracked files\n"); exit(1); } static void parse_opts(int *options, int *count, int argc, char *argv[]) { int i; for (i = 1; i < argc; ++i) { if (argv[i][0] != '-') break; else if (!strcmp(argv[i], "--verbose") || !strcmp(argv[i], "-v")) *options |= VERBOSE; else if (!strcmp(argv[i], "--dry-run") || !strcmp(argv[i], "-n")) *options |= SKIP; else if (!strcmp(argv[i], "--update") || !strcmp(argv[i], "-u")) *options |= UPDATE; else if (!strcmp(argv[i], "-h")) { print_usage(); break; } else if (!strcmp(argv[i], "--")) { i++; break; } else { fprintf(stderr, "Unsupported option %s.\n", argv[i]); print_usage(); } } if (argc <= i) print_usage(); *count = i; }