X-Git-Url: https://git.distorted.org.uk/~mdw/tig/blobdiff_plain/328d27f731f4b47d216d5170fd880a3e783a631e..3e6341130ef0a886d126c6005e5ffcd6a36a8fd5:/tig.c?ds=sidebyside

diff --git a/tig.c b/tig.c
index c3bc1f4..b404f56 100644
--- a/tig.c
+++ b/tig.c
@@ -11,8 +11,8 @@
  * GNU General Public License for more details.
  */
 
-#ifndef VERSION
-#define VERSION "unknown-version"
+#ifndef TIG_VERSION
+#define TIG_VERSION "unknown-version"
 #endif
 
 #ifndef DEBUG
@@ -40,6 +40,8 @@
 
 #include <curses.h>
 
+#include "config.h"
+
 #if __GNUC__ >= 3
 #define __NORETURN __attribute__((__noreturn__))
 #else
@@ -90,6 +92,10 @@ static size_t utf8_length(const char *string, size_t max_width, int *coloffset,
 
 #define	SCALE_SPLIT_VIEW(height)	((height) * 2 / 3)
 
+#ifndef GIT_CONFIG
+#define "git config"
+#endif
+
 #define TIG_LS_REMOTE \
 	"git ls-remote $(git rev-parse --git-dir) 2>/dev/null"
 
@@ -112,6 +118,7 @@ static size_t utf8_length(const char *string, size_t max_width, int *coloffset,
 #define TIG_HELP_CMD	""
 #define TIG_PAGER_CMD	""
 #define TIG_STATUS_CMD	""
+#define TIG_STAGE_CMD	""
 
 /* Some ascii-shorthands fitted into the ncurses namespace. */
 #define KEY_TAB		'\t'
@@ -299,6 +306,7 @@ sq_quote(char buf[SIZEOF_STR], size_t bufsize, const char *src)
 	REQ_(VIEW_HELP,		"Show help page"), \
 	REQ_(VIEW_PAGER,	"Show pager view"), \
 	REQ_(VIEW_STATUS,	"Show status view"), \
+	REQ_(VIEW_STAGE,	"Show stage view"), \
 	\
 	REQ_GROUP("View manipulation") \
 	REQ_(ENTER,		"Enter current line and scroll"), \
@@ -390,7 +398,7 @@ get_request(const char *name)
  */
 
 static const char usage[] =
-"tig " VERSION " (" __DATE__ ")\n"
+"tig " TIG_VERSION " (" __DATE__ ")\n"
 "\n"
 "Usage: tig [options]\n"
 "   or: tig [options] [--] [git log options]\n"
@@ -516,7 +524,7 @@ parse_options(int argc, char *argv[])
 		}
 
 		if (check_option(opt, 'v', "version", OPT_NONE)) {
-			printf("tig version %s\n", VERSION);
+			printf("tig version %s\n", TIG_VERSION);
 			return FALSE;
 		}
 
@@ -729,6 +737,7 @@ static struct keybinding default_keybindings[] = {
 	{ 'p',		REQ_VIEW_PAGER },
 	{ 'h',		REQ_VIEW_HELP },
 	{ 'S',		REQ_VIEW_STATUS },
+	{ 'c',		REQ_VIEW_STAGE },
 
 	/* View manipulation */
 	{ 'q',		REQ_VIEW_CLOSE },
@@ -784,7 +793,8 @@ static struct keybinding default_keybindings[] = {
 	KEYMAP_(BLOB), \
 	KEYMAP_(PAGER), \
 	KEYMAP_(HELP), \
-	KEYMAP_(STATUS)
+	KEYMAP_(STATUS), \
+	KEYMAP_(STAGE)
 
 enum keymap {
 #define KEYMAP_(name) KEYMAP_##name
@@ -1280,6 +1290,7 @@ static struct view_ops tree_ops;
 static struct view_ops blob_ops;
 static struct view_ops help_ops;
 static struct view_ops status_ops;
+static struct view_ops stage_ops;
 
 #define VIEW_STR(name, cmd, env, ref, ops, map) \
 	{ name, cmd, #env, ref, ops, map}
@@ -1297,6 +1308,7 @@ static struct view views[] = {
 	VIEW_(HELP,   "help",   &help_ops,   ""),
 	VIEW_(PAGER,  "pager",  &pager_ops,  "stdin"),
 	VIEW_(STATUS, "status", &status_ops, ""),
+	VIEW_(STAGE,  "stage",	&stage_ops,  ""),
 };
 
 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
@@ -1818,7 +1830,10 @@ begin_update(struct view *view)
 		/* When running random commands, initially show the
 		 * command in the title. However, it maybe later be
 		 * overwritten if a commit line is selected. */
-		string_copy(view->ref, view->cmd);
+		if (view == VIEW(REQ_VIEW_PAGER))
+			string_copy(view->ref, view->cmd);
+		else
+			view->ref[0] = 0;
 
 	} else if (view == VIEW(REQ_VIEW_TREE)) {
 		const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
@@ -1923,7 +1938,7 @@ update_view(struct view *view)
 			line[linelen - 1] = 0;
 
 		if (opt_iconv != ICONV_NONE) {
-			char *inbuf = line;
+			ICONV_INBUF_TYPE inbuf = line;
 			size_t inlen = linelen;
 
 			char *outbuf = out_buffer;
@@ -2197,6 +2212,15 @@ view_driver(struct view *view, enum request request)
 		open_view(view, request, OPEN_DEFAULT);
 		break;
 
+	case REQ_VIEW_STAGE:
+		if (!VIEW(REQ_VIEW_STAGE)->lines) {
+			report("No stage content, press %s to open the status view and choose file",
+			       get_key(REQ_VIEW_STATUS));
+			break;
+		}
+		open_view(view, request, OPEN_DEFAULT);
+		break;
+
 	case REQ_VIEW_MAIN:
 	case REQ_VIEW_DIFF:
 	case REQ_VIEW_LOG:
@@ -2212,6 +2236,8 @@ view_driver(struct view *view, enum request request)
 
 		if ((view == VIEW(REQ_VIEW_DIFF) &&
 		     view->parent == VIEW(REQ_VIEW_MAIN)) ||
+		   (view == VIEW(REQ_VIEW_STAGE) &&
+		     view->parent == VIEW(REQ_VIEW_STATUS)) ||
 		   (view == VIEW(REQ_VIEW_BLOB) &&
 		     view->parent == VIEW(REQ_VIEW_TREE))) {
 			int line;
@@ -2281,7 +2307,7 @@ view_driver(struct view *view, enum request request)
 		break;
 
 	case REQ_SHOW_VERSION:
-		report("tig-%s (built %s)", VERSION, __DATE__);
+		report("tig-%s (built %s)", TIG_VERSION, __DATE__);
 		return TRUE;
 
 	case REQ_SCREEN_RESIZE:
@@ -2625,6 +2651,50 @@ static struct view_ops help_ops = {
  * Tree backend
  */
 
+struct tree_stack_entry {
+	struct tree_stack_entry *prev;	/* Entry below this in the stack */
+	unsigned long lineno;		/* Line number to restore */
+	char *name;			/* Position of name in opt_path */
+};
+
+/* The top of the path stack. */
+static struct tree_stack_entry *tree_stack = NULL;
+unsigned long tree_lineno = 0;
+
+static void
+pop_tree_stack_entry(void)
+{
+	struct tree_stack_entry *entry = tree_stack;
+
+	tree_lineno = entry->lineno;
+	entry->name[0] = 0;
+	tree_stack = entry->prev;
+	free(entry);
+}
+
+static void
+push_tree_stack_entry(char *name, unsigned long lineno)
+{
+	struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
+	size_t pathlen = strlen(opt_path);
+
+	if (!entry)
+		return;
+
+	entry->prev = tree_stack;
+	entry->name = opt_path + pathlen;
+	tree_stack = entry;
+
+	if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
+		pop_tree_stack_entry();
+		return;
+	}
+
+	/* Move the current line to the first tree entry. */
+	tree_lineno = 1;
+	entry->lineno = lineno;
+}
+
 /* Parse output from git-ls-tree(1):
  *
  * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26	Makefile
@@ -2721,9 +2791,10 @@ tree_read(struct view *view, char *text)
 	if (!add_line_text(view, text, type))
 		return FALSE;
 
-	/* Move the current line to the first tree entry. */
-	if (first_read)
-		view->lineno++;
+	if (tree_lineno > view->lineno) {
+		view->lineno = tree_lineno;
+		tree_lineno = 0;
+	}
 
 	return TRUE;
 }
@@ -2736,29 +2807,22 @@ tree_request(struct view *view, enum request request, struct line *line)
 	if (request != REQ_ENTER)
 		return request;
 
+	/* Cleanup the stack if the tree view is at a different tree. */
+	while (!*opt_path && tree_stack)
+		pop_tree_stack_entry();
+
 	switch (line->type) {
 	case LINE_TREE_DIR:
 		/* Depending on whether it is a subdir or parent (updir?) link
 		 * mangle the path buffer. */
 		if (line == &view->line[1] && *opt_path) {
-			size_t path_len = strlen(opt_path);
-			char *dirsep = opt_path + path_len - 1;
-
-			while (dirsep > opt_path && dirsep[-1] != '/')
-				dirsep--;
-
-			dirsep[0] = 0;
+			pop_tree_stack_entry();
 
 		} else {
-			size_t pathlen = strlen(opt_path);
-			size_t origlen = pathlen;
 			char *data = line->data;
 			char *basename = data + SIZEOF_TREE_ATTR;
 
-			if (!string_format_from(opt_path, &pathlen, "%s/", basename)) {
-				opt_path[origlen] = 0;
-				return TRUE;
-			}
+			push_tree_stack_entry(basename, view->lineno);
 		}
 
 		/* Trees and subtrees share the same ID, so they are not not
@@ -2777,6 +2841,9 @@ tree_request(struct view *view, enum request request, struct line *line)
 	}
 
 	open_view(view, request, flags);
+	if (request == REQ_VIEW_TREE) {
+		view->lineno = tree_lineno;
+	}
 
 	return REQ_NONE;
 }
@@ -3117,9 +3184,9 @@ status_enter(struct view *view, struct line *line)
 		die("w00t");
 	}
 
-	open_view(view, REQ_VIEW_DIFF, OPEN_RELOAD | OPEN_SPLIT);
-	if (view_is_displayed(VIEW(REQ_VIEW_DIFF))) {
-		string_format(VIEW(REQ_VIEW_DIFF)->ref, info, status->name);
+	open_view(view, REQ_VIEW_STAGE, OPEN_RELOAD | OPEN_SPLIT);
+	if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
+		string_format(VIEW(REQ_VIEW_STAGE)->ref, info, status->name);
 	}
 
 	return REQ_NONE;
@@ -3312,6 +3379,15 @@ static struct view_ops status_ops = {
 	status_select,
 };
 
+static struct view_ops stage_ops = {
+	"line",
+	NULL,
+	pager_read,
+	pager_draw,
+	pager_request,
+	pager_grep,
+	pager_select,
+};
 
 /*
  * Revision graph
@@ -4256,7 +4332,7 @@ read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen
 static int
 load_repo_config(void)
 {
-	return read_properties(popen("git repo-config --list", "r"),
+	return read_properties(popen(GIT_CONFIG " --list", "r"),
 			       "=", read_repo_config_option);
 }