From d1fdcaeab47cda08b5d77cfe07c35c3709c25047 Mon Sep 17 00:00:00 2001
From: Werner Almesberger <werner@almesberger.net>
Date: Fri, 12 Aug 2016 10:42:03 -0300
Subject: [PATCH] eeshow/gui.c: limit = 0 means "no limit", not "no revisions"

---
 eeshow/gui.c  | 5 +++--
 eeshow/main.c | 2 +-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/eeshow/gui.c b/eeshow/gui.c
index fe968c8..1630f8f 100644
--- a/eeshow/gui.c
+++ b/eeshow/gui.c
@@ -1234,7 +1234,8 @@ static void add_hist(void *user, struct hist *h)
 
 	if (!ahc->limit)
 		return;
-	ahc->limit--;
+	if (ahc->limit > 0)
+		ahc->limit--;
 
 	prev = NULL;
 	for (anchor = &ctx->hist; *anchor; anchor = &(*anchor)->next) {
@@ -1263,7 +1264,7 @@ static void get_revisions(struct gui_ctx *ctx,
 		.n_args		= n_args,
 		.args		= args,
 		.recurse	= recurse,
-		.limit		= limit < 0 ? -limit : limit,
+		.limit		= limit ? limit < 0 ? -limit : limit : -1,
 	};
 
 	if (!vcs_git_try(sch_name)) {
diff --git a/eeshow/main.c b/eeshow/main.c
index d8313b9..6c93129 100644
--- a/eeshow/main.c
+++ b/eeshow/main.c
@@ -56,7 +56,7 @@ void usage(const char *name)
 "  -v    increase verbosity of diagnostic output\n"
 "  -C    'cat' the file to standard output\n"
 "  -H    show history of repository on standard output\n"
-"  -N n  limit history to n revisions\n"
+"  -N n  limit history to n revisions (unlimited if omitted or 0)\n"
 "\n"
 "No driver spec: enter GUI\n"
 "\n"