From c38c64bb6e5e9c1f173e24c964b06497e24108d9 Mon Sep 17 00:00:00 2001 From: Jonas Fonseca Date: Fri, 28 Sep 2007 17:52:40 +0200 Subject: [PATCH] Detect working trees and disable the status view when it is missing In the process, make any call to report() before a view has been set end up in die() to avoid problems with uninitialized views. --- tig.c | 43 ++++++++++++++++++++++++++++++++++++++----- 1 file changed, 38 insertions(+), 5 deletions(-) diff --git a/tig.c b/tig.c index 3a9bc2d..cc7f6b8 100644 --- a/tig.c +++ b/tig.c @@ -440,6 +440,7 @@ static iconv_t opt_iconv = ICONV_NONE; static char opt_search[SIZEOF_STR] = ""; static char opt_cdup[SIZEOF_STR] = ""; static char opt_git_dir[SIZEOF_STR] = ""; +static char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */ static char opt_editor[SIZEOF_STR] = ""; enum option_type { @@ -2236,12 +2237,19 @@ view_driver(struct view *view, enum request request) open_view(view, request, OPEN_DEFAULT); break; + case REQ_VIEW_STATUS: + if (opt_is_inside_work_tree == FALSE) { + report("The status view requires a working tree"); + break; + } + open_view(view, request, OPEN_DEFAULT); + break; + case REQ_VIEW_MAIN: case REQ_VIEW_DIFF: case REQ_VIEW_LOG: case REQ_VIEW_TREE: case REQ_VIEW_HELP: - case REQ_VIEW_STATUS: open_view(view, request, OPEN_DEFAULT); break; @@ -3067,7 +3075,6 @@ status_open(struct view *view) unsigned long prev_lineno = view->lineno; size_t i; - for (i = 0; i < view->lines; i++) free(view->line[i].data); free(view->line); @@ -4288,6 +4295,21 @@ report(const char *msg, ...) if (input_mode) return; + if (!view) { + char buf[SIZEOF_STR]; + va_list args; + + va_start(args, msg); + if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) { + buf[sizeof(buf) - 1] = 0; + buf[sizeof(buf) - 2] = '.'; + buf[sizeof(buf) - 3] = '.'; + buf[sizeof(buf) - 4] = '.'; + } + va_end(args); + die("%s", buf); + } + if (!status_empty || *msg) { va_list args; @@ -4567,10 +4589,21 @@ load_repo_config(void) static int read_repo_info(char *name, size_t namelen, char *value, size_t valuelen) { - if (!opt_git_dir[0]) + if (!opt_git_dir[0]) { string_ncopy(opt_git_dir, name, namelen); - else + + } else if (opt_is_inside_work_tree == -1) { + /* This can be 3 different values depending on the + * version of git being used. If git-rev-parse does not + * understand --is-inside-work-tree it will simply echo + * the option else either "true" or "false" is printed. + * Default to true for the unknown case. */ + opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE; + + } else { string_ncopy(opt_cdup, name, namelen); + } + return OK; } @@ -4579,7 +4612,7 @@ read_repo_info(char *name, size_t namelen, char *value, size_t valuelen) static int load_repo_info(void) { - return read_properties(popen("git rev-parse --git-dir --show-cdup 2>/dev/null", "r"), + return read_properties(popen("git rev-parse --git-dir --is-inside-work-tree --show-cdup 2>/dev/null", "r"), "=", read_repo_info); } -- 2.30.2