From 6eb420ef61317b2efa2993868a6302afed6ae60a Mon Sep 17 00:00:00 2001
From: "Shawn O. Pearce" <spearce@spearce.org>
Date: Tue, 17 Jul 2007 01:50:10 -0400
Subject: [PATCH] git-gui: Always disable the Tcl EOF character when reading

On Windows (which includes Cygwin) Tcl defaults to leaving the EOF
character of input file streams set to the ASCII EOF character, but
if that character were to appear in the data stream then Tcl will
close the channel early.  So we have to disable eofchar on Windows.
Since the default is disabled on all platforms except Windows, we
can just disable it everywhere to prevent any sort of read problem.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
---
 git-gui.sh     | 2 ++
 lib/blame.tcl  | 1 +
 lib/commit.tcl | 2 +-
 lib/diff.tcl   | 1 +
 4 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/git-gui.sh b/git-gui.sh
index 38084515c..d0b75c044 100755
--- a/git-gui.sh
+++ b/git-gui.sh
@@ -414,6 +414,7 @@ proc _open_stdout_stderr {cmd} {
 			error $err
 		}
 	}
+	fconfigure $fd -eofchar {}
 	return $fd
 }
 
@@ -828,6 +829,7 @@ proc load_message {file} {
 		if {[catch {set fd [open $f r]}]} {
 			return 0
 		}
+		fconfigure $fd -eofchar {}
 		set content [string trim [read $fd]]
 		close $fd
 		regsub -all -line {[ \r\t]+$} $content {} content
diff --git a/lib/blame.tcl b/lib/blame.tcl
index 4bdb9a27a..1bcb4b471 100644
--- a/lib/blame.tcl
+++ b/lib/blame.tcl
@@ -370,6 +370,7 @@ method _load {jump} {
 	$w_path conf -text [escape_path $path]
 	if {$commit eq {}} {
 		set fd [open $path r]
+		fconfigure $fd -eofchar {}
 	} else {
 		set fd [git_read cat-file blob "$commit:$path"]
 	}
diff --git a/lib/commit.tcl b/lib/commit.tcl
index 46a78c158..0f3b16dfe 100644
--- a/lib/commit.tcl
+++ b/lib/commit.tcl
@@ -209,7 +209,7 @@ A good commit message has the following format:
 	ui_status {Calling pre-commit hook...}
 	set pch_error {}
 	set fd_ph [open "| $pchook" r]
-	fconfigure $fd_ph -blocking 0 -translation binary
+	fconfigure $fd_ph -blocking 0 -translation binary -eofchar {}
 	fileevent $fd_ph readable \
 		[list commit_prehook_wait $fd_ph $curHEAD $msg]
 }
diff --git a/lib/diff.tcl b/lib/diff.tcl
index 9cb9d0604..e09e1257e 100644
--- a/lib/diff.tcl
+++ b/lib/diff.tcl
@@ -86,6 +86,7 @@ proc show_diff {path w {lno {}}} {
 		set max_sz [expr {128 * 1024}]
 		if {[catch {
 				set fd [open $path r]
+				fconfigure $fd -eofchar {}
 				set content [read $fd $max_sz]
 				close $fd
 				set sz [file size $path]
-- 
2.30.2