From 6908bdbdb5996f30f7dcb5e2dd71f8c8bbbab8a3 Mon Sep 17 00:00:00 2001 From: Jonas Fonseca Date: Thu, 11 May 2006 01:08:44 +0200 Subject: [PATCH] Add support for pager view --- tig.c | 132 +++++++++++++++++++++++++++++++++++++++------------------- 1 file changed, 90 insertions(+), 42 deletions(-) diff --git a/tig.c b/tig.c index aa62a8f..882b2fd 100644 --- a/tig.c +++ b/tig.c @@ -38,6 +38,7 @@ #include #include #include +#include #include #include @@ -82,6 +83,7 @@ enum request { REQ_VIEW_DIFF, REQ_VIEW_LOG, REQ_VIEW_HELP, + REQ_VIEW_PAGER, REQ_ENTER, REQ_QUIT, @@ -179,6 +181,7 @@ static int opt_line_number = FALSE; static int opt_num_interval = NUMBER_INTERVAL; static enum request opt_request = REQ_VIEW_MAIN; static char opt_cmd[SIZEOF_CMD] = ""; +static FILE *opt_pipe = NULL; char ref_head[SIZEOF_REF] = "HEAD"; char ref_commit[SIZEOF_REF] = "HEAD"; @@ -203,7 +206,7 @@ parse_options(int argc, char *argv[]) !strcmp(opt, "diff")) { opt_request = opt[0] == 'l' ? REQ_VIEW_LOG : REQ_VIEW_DIFF; - return i; + break; } /** @@ -264,8 +267,10 @@ parse_options(int argc, char *argv[]) * * $ tig -- --pretty=raw tag-1.0..HEAD **/ - if (!strcmp(opt, "--")) - return i + 1; + if (!strcmp(opt, "--")) { + i++; + break; + } /* Make stuff like: * @@ -274,11 +279,40 @@ parse_options(int argc, char *argv[]) * work. */ if (opt[0] && opt[0] != '-') - return i; + break; die("unknown command '%s'", opt); } + if (!isatty(STDIN_FILENO)) { + /* XXX: When pager mode has been requested, silently override + * view startup options. */ + opt_request = REQ_VIEW_PAGER; + opt_pipe = stdin; + + } else if (i < argc) { + size_t buf_size; + + /* XXX: This is vulnerable to the user overriding options + * required for the main view parser. */ + if (opt_request == REQ_VIEW_MAIN) + string_copy(opt_cmd, "git log --stat --pretty=raw"); + else + string_copy(opt_cmd, "git"); + buf_size = strlen(opt_cmd); + + while (buf_size < sizeof(opt_cmd) && i < argc) { + opt_cmd[buf_size++] = ' '; + buf_size = sq_quote(opt_cmd, buf_size, argv[i++]); + } + + if (buf_size >= sizeof(opt_cmd)) + die("command too long"); + + opt_cmd[buf_size] = 0; + + } + return i; } @@ -424,9 +458,10 @@ LINE(DIFF_RENAME, "rename ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ LINE(DIFF_SIM, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ LINE(DIFF_DISSIM, "dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ /* Pretty print commit header */ \ -LINE(AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \ -LINE(MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \ -LINE(DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ +LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \ +LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \ +LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ +LINE(PP_COMMIT, "Commit: ", COLOR_GREEN, COLOR_DEFAULT, 0), \ /* Raw commit header */ \ LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \ LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \ @@ -568,10 +603,11 @@ static struct view_ops main_ops; "man tig 2> /dev/null" static struct view views[] = { - { "main", MAIN_CMD, ref_head, sizeof(struct commit), &main_ops }, - { "diff", DIFF_CMD, ref_commit, sizeof(char), &pager_ops }, - { "log", LOG_CMD, ref_head, sizeof(char), &pager_ops }, - { "help", HELP_CMD, ref_head, sizeof(char), &pager_ops }, + { "main", MAIN_CMD, ref_head, sizeof(struct commit), &main_ops }, + { "diff", DIFF_CMD, ref_commit, sizeof(char), &pager_ops }, + { "log", LOG_CMD, ref_head, sizeof(char), &pager_ops }, + { "help", HELP_CMD, ref_head, sizeof(char), &pager_ops }, + { "pager", "cat", ref_head, sizeof(char), &pager_ops }, }; #define VIEW(req) (&views[(req) - REQ_OFFSET - 1]) @@ -669,7 +705,12 @@ update_view_title(struct view *view) wmove(view->title, 0, 0); /* [main] ref: 334b506... - commit 6 of 4383 (0%) */ - wprintw(view->title, "[%s] ref: %s", view->name, view->ref); + + if (*view->ref) + wprintw(view->title, "[%s] ref: %s", view->name, view->ref); + else + wprintw(view->title, "[%s]", view->name); + if (view->lines) { char *type = view == VIEW(REQ_VIEW_MAIN) ? "commit" : "line"; @@ -811,7 +852,7 @@ move_view(struct view *view, enum request request) report("Already on first line"); return; - } else if (steps >= 0 && view->lineno + 1 == view->lines) { + } else if (steps >= 0 && view->lineno + 1 >= view->lines) { report("Already on last line"); return; } @@ -875,7 +916,14 @@ begin_update(struct view *view) return FALSE; } - view->pipe = popen(view->cmd, "r"); + /* Special case for the pager view. */ + if (opt_pipe) { + view->pipe = opt_pipe; + opt_pipe = NULL; + } else { + view->pipe = popen(view->cmd, "r"); + } + if (!view->pipe) return FALSE; @@ -1096,10 +1144,15 @@ view_driver(struct view *view, enum request request) case REQ_VIEW_DIFF: case REQ_VIEW_LOG: case REQ_VIEW_HELP: + case REQ_VIEW_PAGER: switch_view(view, request, FALSE, FALSE); break; case REQ_ENTER: + if (!view->lines) { + report("Nothing to enter"); + break; + } return view->ops->enter(view); case REQ_VIEW_NEXT: @@ -1179,11 +1232,17 @@ pager_draw(struct view *view, unsigned int lineno) type = get_line_type(line); if (view->offset + lineno == view->lineno) { - if (type == LINE_COMMIT) { + switch (type) { + case LINE_COMMIT: string_copy(view->ref, line + 7); string_copy(ref_commit, view->ref); + break; + case LINE_PP_COMMIT: + string_copy(view->ref, line + 8); + string_copy(ref_commit, view->ref); + default: + break; } - type = LINE_CURSOR; } @@ -1469,7 +1528,16 @@ init_display(void) { int x, y; - initscr(); /* Initialize the curses library */ + /* Initialize the curses library */ + if (isatty(STDIN_FILENO)) { + initscr(); + } else { + /* Leave stdin and stdout alone when acting as a pager. */ + FILE *io = fopen("/dev/tty", "r+"); + + newterm(NULL, io, io); + } + nonl(); /* Tell curses not to do NL->CR/NL on output */ cbreak(); /* Take input chars one at a time, no wait for \n */ noecho(); /* Don't echo input */ @@ -1531,28 +1599,6 @@ main(int argc, char *argv[]) if (git_arg < 0) return 0; - if (git_arg < argc) { - size_t buf_size; - - /* XXX: This is vulnerable to the user overriding options - * required for the main view parser. */ - if (opt_request == REQ_VIEW_MAIN) - string_copy(opt_cmd, "git log --stat --pretty=raw"); - else - string_copy(opt_cmd, "git"); - buf_size = strlen(opt_cmd); - - while (buf_size < sizeof(opt_cmd) && git_arg < argc) { - opt_cmd[buf_size++] = ' '; - buf_size = sq_quote(opt_cmd, buf_size, argv[git_arg++]); - } - - if (buf_size >= sizeof(opt_cmd)) - die("command too long"); - - opt_cmd[buf_size] = 0; - } - request = opt_request; init_display(); @@ -1570,13 +1616,15 @@ main(int argc, char *argv[]) request = get_request(key); if (request == REQ_PROMPT) { + report(":"); + /* Temporarily switch to line-oriented and echoed + * input. */ nocbreak(); echo(); - report(":"); if (wgetnstr(status_win, opt_cmd, sizeof(opt_cmd)) == OK) die("%s", opt_cmd); - cbreak(); /* Take input chars one at a time, no wait for \n */ - noecho(); /* Don't echo input */ + noecho(); + cbreak(); } } -- 2.30.2