diff options
Diffstat (limited to 'submodule.c')
| -rw-r--r-- | submodule.c | 151 |
1 files changed, 150 insertions, 1 deletions
diff --git a/submodule.c b/submodule.c index c0f93c208c..613857e400 100644 --- a/submodule.c +++ b/submodule.c @@ -10,6 +10,7 @@ #include "string-list.h" #include "sha1-array.h" #include "argv-array.h" +#include "blob.h" static struct string_list config_name_for_path; static struct string_list config_fetch_recurse_submodules_for_name; @@ -30,6 +31,118 @@ static struct sha1_array ref_tips_after_fetch; */ static int gitmodules_is_unmerged; +/* + * This flag is set if the .gitmodules file had unstaged modifications on + * startup. This must be checked before allowing modifications to the + * .gitmodules file with the intention to stage them later, because when + * continuing we would stage the modifications the user didn't stage herself + * too. That might change in a future version when we learn to stage the + * changes we do ourselves without staging any previous modifications. + */ +static int gitmodules_is_modified; + + +int is_staging_gitmodules_ok(void) +{ + return !gitmodules_is_modified; +} + +/* + * Try to update the "path" entry in the "submodule.<name>" section of the + * .gitmodules file. Return 0 only if a .gitmodules file was found, a section + * with the correct path=<oldpath> setting was found and we could update it. + */ +int update_path_in_gitmodules(const char *oldpath, const char *newpath) +{ + struct strbuf entry = STRBUF_INIT; + struct string_list_item *path_option; + + if (!file_exists(".gitmodules")) /* Do nothing without .gitmodules */ + return -1; + + if (gitmodules_is_unmerged) + die(_("Cannot change unmerged .gitmodules, resolve merge conflicts first")); + + path_option = unsorted_string_list_lookup(&config_name_for_path, oldpath); + if (!path_option) { + warning(_("Could not find section in .gitmodules where path=%s"), oldpath); + return -1; + } + strbuf_addstr(&entry, "submodule."); + strbuf_addstr(&entry, path_option->util); + strbuf_addstr(&entry, ".path"); + if (git_config_set_in_file(".gitmodules", entry.buf, newpath) < 0) { + /* Maybe the user already did that, don't error out here */ + warning(_("Could not update .gitmodules entry %s"), entry.buf); + strbuf_release(&entry); + return -1; + } + strbuf_release(&entry); + return 0; +} + +/* + * Try to remove the "submodule.<name>" section from .gitmodules where the given + * path is configured. Return 0 only if a .gitmodules file was found, a section + * with the correct path=<path> setting was found and we could remove it. + */ +int remove_path_from_gitmodules(const char *path) +{ + struct strbuf sect = STRBUF_INIT; + struct string_list_item *path_option; + + if (!file_exists(".gitmodules")) /* Do nothing without .gitmodules */ + return -1; + + if (gitmodules_is_unmerged) + die(_("Cannot change unmerged .gitmodules, resolve merge conflicts first")); + + path_option = unsorted_string_list_lookup(&config_name_for_path, path); + if (!path_option) { + warning(_("Could not find section in .gitmodules where path=%s"), path); + return -1; + } + strbuf_addstr(§, "submodule."); + strbuf_addstr(§, path_option->util); + if (git_config_rename_section_in_file(".gitmodules", sect.buf, NULL) < 0) { + /* Maybe the user already did that, don't error out here */ + warning(_("Could not remove .gitmodules entry for %s"), path); + strbuf_release(§); + return -1; + } + strbuf_release(§); + return 0; +} + +void stage_updated_gitmodules(void) +{ + struct strbuf buf = STRBUF_INIT; + struct stat st; + int pos; + struct cache_entry *ce; + int namelen = strlen(".gitmodules"); + + pos = cache_name_pos(".gitmodules", namelen); + if (pos < 0) { + warning(_("could not find .gitmodules in index")); + return; + } + ce = active_cache[pos]; + ce->ce_flags = namelen; + if (strbuf_read_file(&buf, ".gitmodules", 0) < 0) + die(_("reading updated .gitmodules failed")); + if (lstat(".gitmodules", &st) < 0) + die_errno(_("unable to stat updated .gitmodules")); + fill_stat_cache_info(ce, &st); + ce->ce_mode = ce_mode_from_stat(ce, st.st_mode); + if (remove_cache_entry_at(pos) < 0) + die(_("unable to remove .gitmodules from index")); + if (write_sha1_file(buf.buf, buf.len, blob_type, ce->sha1)) + die(_("adding updated .gitmodules failed")); + if (add_cache_entry(ce, ADD_CACHE_OK_TO_ADD|ADD_CACHE_OK_TO_REPLACE)) + die(_("staging updated .gitmodules failed")); +} + static int add_submodule_odb(const char *path) { struct strbuf objects_directory = STRBUF_INIT; @@ -88,7 +201,7 @@ void set_diffopt_flags_from_submodule_config(struct diff_options *diffopt, int submodule_config(const char *var, const char *value, void *cb) { - if (!prefixcmp(var, "submodule.")) + if (starts_with(var, "submodule.")) return parse_submodule_config_option(var, value); else if (!strcmp(var, "fetch.recursesubmodules")) { config_fetch_recurse_submodules = parse_fetch_recurse_submodules_arg(var, value); @@ -116,6 +229,11 @@ void gitmodules_config(void) !memcmp(ce->name, ".gitmodules", 11)) gitmodules_is_unmerged = 1; } + } else if (pos < active_nr) { + struct stat st; + if (lstat(".gitmodules", &st) == 0 && + ce_match_stat(active_cache[pos], &st, 0) & DATA_CHANGED) + gitmodules_is_modified = 1; } if (!gitmodules_is_unmerged) @@ -1010,3 +1128,34 @@ int merge_submodule(unsigned char result[20], const char *path, free(merges.objects); return 0; } + +/* Update gitfile and core.worktree setting to connect work tree and git dir */ +void connect_work_tree_and_git_dir(const char *work_tree, const char *git_dir) +{ + struct strbuf file_name = STRBUF_INIT; + struct strbuf rel_path = STRBUF_INIT; + const char *real_work_tree = xstrdup(real_path(work_tree)); + FILE *fp; + + /* Update gitfile */ + strbuf_addf(&file_name, "%s/.git", work_tree); + fp = fopen(file_name.buf, "w"); + if (!fp) + die(_("Could not create git link %s"), file_name.buf); + fprintf(fp, "gitdir: %s\n", relative_path(git_dir, real_work_tree, + &rel_path)); + fclose(fp); + + /* Update core.worktree setting */ + strbuf_reset(&file_name); + strbuf_addf(&file_name, "%s/config", git_dir); + if (git_config_set_in_file(file_name.buf, "core.worktree", + relative_path(real_work_tree, git_dir, + &rel_path))) + die(_("Could not set core.worktree in %s"), + file_name.buf); + + strbuf_release(&file_name); + strbuf_release(&rel_path); + free((void *)real_work_tree); +} |