Author: John Keeping <john@keeping.me.uk>
tree: allow skipping through single-child trees If we have only a single element in a directory (for example in Java package paths), display multiple directories in one go so that it is possible to navigate directly to the first directory that contains either files or multiple directories. Signed-off-by: John Keeping <john@keeping.me.uk>
ui-tree.c | 70 +++++++++++++++++++++++++++++++++++++++++++++++++++++++-
diff --git a/ui-tree.c b/ui-tree.c index 120066c425346f4b48d8061ed5f908da66138fc3..5c31e6abe426cf91d68f9e695a5064209e80467f 100644 --- a/ui-tree.c +++ b/ui-tree.c @@ -155,6 +155,72 @@ else print_text_buffer(basename, buf, size); } +struct single_tree_ctx { + struct strbuf *path; + unsigned char sha1[GIT_SHA1_RAWSZ]; + char *name; + size_t count; +}; + +static int single_tree_cb(const unsigned char *sha1, struct strbuf *base, + const char *pathname, unsigned mode, int stage, + void *cbdata) +{ + struct single_tree_ctx *ctx = cbdata; + + if (++ctx->count > 1) + return -1; + + if (!S_ISDIR(mode)) { + ctx->count = 2; + return -1; + } + + ctx->name = xstrdup(pathname); + hashcpy(ctx->sha1, sha1); + strbuf_addf(ctx->path, "/%s", pathname); + return 0; +} + +static void write_tree_link(const unsigned char *sha1, char *name, + char *rev, struct strbuf *fullpath) +{ + size_t initial_length = fullpath->len; + struct tree *tree; + struct single_tree_ctx tree_ctx = { + .path = fullpath, + .count = 1, + }; + struct pathspec paths = { + .nr = 0 + }; + + hashcpy(tree_ctx.sha1, sha1); + + while (tree_ctx.count == 1) { + cgit_tree_link(name, NULL, "ls-dir", ctx.qry.head, rev, + fullpath->buf); + + tree = lookup_tree(tree_ctx.sha1); + if (!tree) + return; + + free(tree_ctx.name); + tree_ctx.name = NULL; + tree_ctx.count = 0; + + read_tree_recursive(tree, "", 0, 1, &paths, single_tree_cb, + &tree_ctx); + + if (tree_ctx.count != 1) + break; + + html(" / "); + name = tree_ctx.name; + } + + strbuf_setlen(fullpath, initial_length); +} static int ls_item(const unsigned char *sha1, struct strbuf *base, const char *pathname, unsigned mode, int stage, void *cbdata) @@ -187,8 +253,8 @@ html(""); if (S_ISGITLINK(mode)) { cgit_submodule_link("ls-mod", fullpath.buf, sha1_to_hex(sha1)); } else if (S_ISDIR(mode)) { - cgit_tree_link(name, NULL, "ls-dir", ctx.qry.head, - walk_tree_ctx->curr_rev, fullpath.buf); + write_tree_link(sha1, name, walk_tree_ctx->curr_rev, + &fullpath); } else { char *ext = strrchr(name, '.'); strbuf_addstr(&class, "ls-blob");