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[PATCH (GIT-GUI,GITK) 1/8] git-gui: Cleanup handling of the default encoding.

From
Alexander Gavrilov <angavrilov@gmail.com>
Date
Sep 17, 2008, 21:07 UTC
Message-ID
<1221685659-476-2-git-send-email-angavrilov@gmail.com>
In-Reply-To
<1221685659-476-1-git-send-email-angavrilov@gmail.com>
- Make diffs and blame default to the system (locale)
  encoding instead of hard-coding UTF-8.
- Add a gui.encoding option to allow overriding it.
- gitattributes still have the final word.
The rationale for this is Windows support:
1) Windows people are accustomed to using legacy encodings
   for text files. For many of them defaulting to utf-8
   will be counter-intuitive.
2) Windows doesn't support utf-8 locales, and switching
   the system encoding is a real pain. Thus the option.
This patch also adds proper encoding conversion to Apply Hunk/Line.
Signed-off-by: Alexander Gavrilov <angavrilov@gmail.com>
---
 git-gui.sh       |    1 +
 lib/blame.tcl    |    2 +-
 lib/diff.tcl     |   11 ++++++-----
 lib/encoding.tcl |   14 ++++++++++++++
 lib/option.tcl   |   24 ++++++++++++++++++++++++
 5 files changed, 46 insertions(+), 6 deletions(-)
diff --git a/git-gui.sh b/git-gui.sh
index 91457a2..444990b 100755
--- a/git-gui.sh
+++ b/git-gui.sh
@@ -678,6 +678,7 @@ set default_config(merge.verbosity) 2
 set default_config(user.name) {}
 set default_config(user.email) {}
 
+set default_config(gui.encoding) [encoding system]
 set default_config(gui.matchtrackingbranch) false
 set default_config(gui.pruneduringfetch) false
 set default_config(gui.trustmtime) false
diff --git a/lib/blame.tcl b/lib/blame.tcl
index 7535adb..84d55b5 100644
--- a/lib/blame.tcl
+++ b/lib/blame.tcl
@@ -402,7 +402,7 @@ method _load {jump} {
 	fconfigure $fd \
 		-blocking 0 \
 		-translation lf \
-		-encoding [tcl_encoding [gitattr $path encoding UTF-8]]
+		-encoding [get_path_encoding $path]
 	fileevent $fd readable [cb _read_file $fd $jump]
 	set current_fd $fd
 }
diff --git a/lib/diff.tcl b/lib/diff.tcl
index b0ecfbc..8fefc5d 100644
--- a/lib/diff.tcl
+++ b/lib/diff.tcl
@@ -164,11 +164,10 @@ proc show_other_diff {path w m scroll_pos} {
 					set sz [string length $content]
 				}
 				file {
-					set enc [gitattr $path encoding UTF-8]
 					set fd [open $path r]
 					fconfigure $fd \
 						-eofchar {} \
-						-encoding [tcl_encoding $enc]
+						-encoding [get_path_encoding $path]
 					set content [read $fd $max_sz]
 					close $fd
 					set sz [file size $path]
@@ -282,7 +281,7 @@ proc start_show_diff {scroll_pos {add_opts {}}} {
 	set ::current_diff_inheader 1
 	fconfigure $fd \
 		-blocking 0 \
-		-encoding [tcl_encoding [gitattr $path encoding UTF-8]] \
+		-encoding [get_path_encoding $path] \
 		-translation lf
 	fileevent $fd readable [list read_diff $fd $scroll_pos]
 }
@@ -435,8 +434,9 @@ proc apply_hunk {x y} {
 	}
 
 	if {[catch {
+		set enc [get_path_encoding $current_diff_path]
 		set p [eval git_write $apply_cmd]
-		fconfigure $p -translation binary -encoding binary
+		fconfigure $p -translation binary -encoding $enc
 		puts -nonewline $p $current_diff_header
 		puts -nonewline $p [$ui_diff get $s_lno $e_lno]
 		close $p} err]} {
@@ -604,8 +604,9 @@ proc apply_line {x y} {
 	set patch "@@ -$hln,$n +$hln,[eval expr $n $sign 1] @@\n$patch"
 
 	if {[catch {
+		set enc [get_path_encoding $current_diff_path]
 		set p [eval git_write $apply_cmd]
-		fconfigure $p -translation binary -encoding binary
+		fconfigure $p -translation binary -encoding $enc
 		puts -nonewline $p $current_diff_header
 		puts -nonewline $p $patch
 		close $p} err]} {
diff --git a/lib/encoding.tcl b/lib/encoding.tcl
index 7f06b0d..e186b0c 100644
--- a/lib/encoding.tcl
+++ b/lib/encoding.tcl
@@ -274,3 +274,17 @@ proc tcl_encoding {enc} {
     }
     return {}
 }
+
+proc get_path_encoding {path} {
+	set tcl_enc [tcl_encoding [get_config gui.encoding]]
+	if {$tcl_enc eq {}} {
+		set tcl_enc [encoding system]
+	}
+	if {$path ne {}} {
+		set enc2 [tcl_encoding [gitattr $path encoding $tcl_enc]]
+		if {$enc2 ne {}} {
+			set tcl_enc $enc2
+		}
+	}
+	return $tcl_enc
+}
diff --git a/lib/option.tcl b/lib/option.tcl
index 9b865f6..40af44e 100644
--- a/lib/option.tcl
+++ b/lib/option.tcl
@@ -1,6 +1,28 @@
 # git-gui options editor
 # Copyright (C) 2006, 2007 Shawn Pearce
 
+proc config_check_encodings {} {
+	global repo_config_new global_config_new
+
+	set enc $global_config_new(gui.encoding)
+	if {$enc eq {}} {
+		set global_config_new(gui.encoding) [encoding system]
+	} elseif {[tcl_encoding $enc] eq {}} {
+		error_popup [mc "Invalid global encoding '%s'" $enc]
+		return 0
+	}
+
+	set enc $repo_config_new(gui.encoding)
+	if {$enc eq {}} {
+		set repo_config_new(gui.encoding) [encoding system]
+	} elseif {[tcl_encoding $enc] eq {}} {
+		error_popup [mc "Invalid repo encoding '%s'" $enc]
+		return 0
+	}
+
+	return 1
+}
+
 proc save_config {} {
 	global default_config font_descs
 	global repo_config global_config
@@ -130,6 +152,7 @@ proc do_options {} {
 		{i-1..99 gui.diffcontext {mc "Number of Diff Context Lines"}}
 		{i-0..99 gui.commitmsgwidth {mc "Commit Message Text Width"}}
 		{t gui.newbranchtemplate {mc "New Branch Name Template"}}
+		{t gui.encoding {mc "Default File Contents Encoding"}}
 		} {
 		set type [lindex $option 0]
 		set name [lindex $option 1]
@@ -275,6 +298,7 @@ proc do_restore_defaults {} {
 }
 
 proc do_save_config {w} {
+	if {![config_check_encodings]} return
 	if {[catch {save_config} err]} {
 		error_popup [strcat [mc "Failed to completely save options:"] "\n\n$err"]
 	}
-- 
1.6.0.20.g6148bc
Previous: Alexander GavrilovNext: Alexander Gavrilov
Message 2 of 44 in “Encoding support in GUI”
  1. 0/8 Encoding support in GUIAlexander Gavrilov, Sep 17, 2008
  2. 1/8 git-gui: Cleanup handling of the default encoding.Alexander Gavrilov, Sep 17, 2008
  3. 2/8 git-gui: Add a menu of available encodings.Alexander Gavrilov, Sep 17, 2008
  4. 3/8 git-gui: Allow forcing display encoding for diffs using a submenu.Alexander Gavrilov, Sep 17, 2008
  5. 4/8 git-gui: Optimize encoding name resolution using a lookup table.Alexander Gavrilov, Sep 17, 2008
  6. 5/8 git-gui: Support the encoding menu in gui blame.Alexander Gavrilov, Sep 17, 2008
  7. 6/8 gitk: Port new encoding logic from git-gui.Alexander Gavrilov, Sep 17, 2008
  8. 7/8 gitk: Implement file contents encoding support.Alexander Gavrilov, Sep 17, 2008
  9. 8/8 gitk: Support filenames in the locale encoding.Alexander Gavrilov, Sep 17, 2008
  10. Johannes SixtSep 19, 2008
  11. Alexander GavrilovSep 19, 2008
  12. Johannes SixtSep 19, 2008
  13. Alexander GavrilovSep 21, 2008
  14. Johannes SixtSep 22, 2008
  15. Johannes SixtSep 22, 2008
  16. Alexander GavrilovSep 22, 2008
  17. Johannes SixtSep 22, 2008
  18. Alexander GavrilovSep 22, 2008
  19. Johannes SixtSep 22, 2008
  20. Alexander GavrilovSep 22, 2008
  21. Dmitry PotapovSep 22, 2008
  22. Dmitry PotapovSep 18, 2008
  23. Alexander GavrilovSep 18, 2008
  24. Johannes SixtSep 18, 2008
  25. Dmitry PotapovSep 18, 2008
  26. Alexander GavrilovSep 18, 2008
  27. Dmitry PotapovSep 18, 2008
  28. Paul MackerrasSep 17, 2008
  29. Alexander GavrilovSep 18, 2008
  30. Paul MackerrasSep 21, 2008
  31. Alexander GavrilovSep 22, 2008
  32. 1/2 check-attr: add an internal check_attr() functionDmitry Potapov, Oct 5, 2008
  33. 2/2 check-attr: Add --stdin-paths optionDmitry Potapov, Oct 5, 2008
  34. Johannes SixtOct 6, 2008
  35. 1/2 check-attr: add an internal check_attr() functionDmitry Potapov, Oct 7, 2008
  36. 2/2 check-attr: Add --stdin-paths optionDmitry Potapov, Oct 7, 2008
  37. Shawn O. PearceOct 8, 2008
  38. Dmitry PotapovOct 12, 2008
  39. Jakub NarebskiOct 12, 2008
  40. Dmitry PotapovOct 12, 2008
  41. Paul MackerrasOct 10, 2008
  42. Dmitry PotapovOct 12, 2008
  43. Johannes SixtOct 1, 2008
  44. Paul MackerrasOct 10, 2008

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