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[PATCH] git-gui: use textconv filter for diff and blame

From
Matthieu Moy <matthieu.moy@imag.fr>
Date
Jul 28, 2010, 12:23 UTC
Message-ID
<1280319830-20483-1-git-send-email-Matthieu.Moy@imag.fr>
From: Clément Poulain <clement.poulain@ensimag.imag.fr>

Create a checkbox "Use Textconv For Diffs and Blame" in git-gui options. If checked and if the driver for the concerned file exists, git-gui calls diff and blame with --textconv option

Signed-off-by: Clément Poulain <clement.poulain@ensimag.imag.fr>
Signed-off-by: Diane Gasselin <diane.gasselin@ensimag.imag.fr>
Signed-off-by: Axel Bonnet <axel.bonnet@ensimag.imag.fr>
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
---

This patch was originally written by Clément Poulain (a student of mine), it was not mergeable at the time it was sent, since it relied on a patch serie introducing "git cat-file --textconv". Now that this cat-file --textconv is in a git release (1.7.2), I guess it's time to get this merged into git-gui.

I did review and test the patch, but I'm mostly useless in TCL, so I may have missed the obvious. That said, the patch is relatively simple and looks OK.

 git-gui/git-gui.sh     |   28 +++++++++++++++++++++++++++-
 git-gui/lib/blame.tcl  |   21 +++++++++++++++++++--
 git-gui/lib/diff.tcl   |    5 ++++-
 git-gui/lib/option.tcl |    1 +
 4 files changed, 51 insertions(+), 4 deletions(-)
diff --git a/git-gui/git-gui.sh b/git-gui/git-gui.sh
index 7d54511..59edf39 100755
--- a/git-gui/git-gui.sh
+++ b/git-gui/git-gui.sh
@@ -269,6 +269,17 @@ proc is_config_true {name} {
 	}
 }
 
+proc is_config_false {name} {
+	global repo_config
+	if {[catch {set v $repo_config($name)}]} {
+		return 0
+	} elseif {$v eq {false} || $v eq {0} || $v eq {no}} {
+		return 1
+	} else {
+		return 0
+	}
+}
+
 proc get_config {name} {
 	global repo_config
 	if {[catch {set v $repo_config($name)}]} {
@@ -782,6 +793,7 @@ set default_config(user.email) {}
 
 set default_config(gui.encoding) [encoding system]
 set default_config(gui.matchtrackingbranch) false
+set default_config(gui.textconv) true
 set default_config(gui.pruneduringfetch) false
 set default_config(gui.trustmtime) false
 set default_config(gui.fastcopyblame) false
@@ -3405,6 +3417,19 @@ lappend diff_actions [list $ctxmsm entryconf [$ctxmsm index last] -state]
 $ctxmsm add separator
 create_common_diff_popup $ctxmsm
 
+proc has_textconv {path} {
+	if {[is_config_false gui.textconv]} {
+		return 0
+	}
+	set filter [gitattr $path diff set]
+	set textconv [get_config [join [list diff $filter textconv] .]]
+	if {$filter ne {set} && $textconv ne {}} {
+		return 1
+	} else {
+		return 0
+	}
+}
+
 proc popup_diff_menu {ctxm ctxmmg ctxmsm x y X Y} {
 	global current_diff_path file_states
 	set ::cursorX $x
@@ -3440,7 +3465,8 @@ proc popup_diff_menu {ctxm ctxmmg ctxmsm x y X Y} {
 			|| {__} eq $state
 			|| {_O} eq $state
 			|| {_T} eq $state
-			|| {T_} eq $state} {
+			|| {T_} eq $state
+			|| [has_textconv $current_diff_path]} {
 			set s disabled
 		} else {
 			set s normal
diff --git a/git-gui/lib/blame.tcl b/git-gui/lib/blame.tcl
index 786b50b..ead68fd 100644
--- a/git-gui/lib/blame.tcl
+++ b/git-gui/lib/blame.tcl
@@ -449,11 +449,28 @@ method _load {jump} {
 
 	$status show [mc "Reading %s..." "$commit:[escape_path $path]"]
 	$w_path conf -text [escape_path $path]
+
+	set do_textconv 0
+	if {![is_config_false gui.textconv] && [git-version >= 1.7.2]} {
+		set filter [gitattr $path diff set]
+		set textconv [get_config [join [list diff $filter textconv] .]]
+		if {$filter ne {set} && $textconv ne {}} {
+			set do_textconv 1
+		}
+	}
 	if {$commit eq {}} {
-		set fd [open $path r]
+		if {$do_textconv ne 0} {
+			set fd [open "|$textconv $path" r]
+		} else {
+			set fd [open $path r]
+		}
 		fconfigure $fd -eofchar {}
 	} else {
-		set fd [git_read cat-file blob "$commit:$path"]
+		if {$do_textconv ne 0} {
+			set fd [git_read cat-file --textconv "$commit:$path"]
+		} else {
+			set fd [git_read cat-file blob "$commit:$path"]
+		}
 	}
 	fconfigure $fd \
 		-blocking 0 \
diff --git a/git-gui/lib/diff.tcl b/git-gui/lib/diff.tcl
index ec8c11e..c628750 100644
--- a/git-gui/lib/diff.tcl
+++ b/git-gui/lib/diff.tcl
@@ -55,7 +55,7 @@ proc handle_empty_diff {} {
 
 	set path $current_diff_path
 	set s $file_states($path)
-	if {[lindex $s 0] ne {_M}} return
+	if {[lindex $s 0] ne {_M} || [has_textconv $path]} return
 
 	# Prevent infinite rescan loops
 	incr diff_empty_count
@@ -280,6 +280,9 @@ proc start_show_diff {cont_info {add_opts {}}} {
 			lappend cmd diff-files
 		}
 	}
+	if {![is_config_false gui.textconv] && [git-version >= 1.6.1]} {
+		lappend cmd --textconv
+	}
 
 	if {[string match {160000 *} [lindex $s 2]]
 	 || [string match {160000 *} [lindex $s 3]]} {
diff --git a/git-gui/lib/option.tcl b/git-gui/lib/option.tcl
index d4c5e45..3807c8d 100644
--- a/git-gui/lib/option.tcl
+++ b/git-gui/lib/option.tcl
@@ -148,6 +148,7 @@ proc do_options {} {
 		{b gui.trustmtime  {mc "Trust File Modification Timestamps"}}
 		{b gui.pruneduringfetch {mc "Prune Tracking Branches During Fetch"}}
 		{b gui.matchtrackingbranch {mc "Match Tracking Branches"}}
+		{b gui.textconv {mc "Use Textconv For Diffs and Blames"}}
 		{b gui.fastcopyblame {mc "Blame Copy Only On Changed Files"}}
 		{i-20..200 gui.copyblamethreshold {mc "Minimum Letters To Blame Copy On"}}
 		{i-0..300 gui.blamehistoryctx {mc "Blame History Context Radius (days)"}}
-- 
1.7.2.25.g9ebe3
Next: Pat Thoyts
Message 1 of 6 in “git-gui: use textconv filter for diff and blame”
  1. git-gui: use textconv filter for diff and blameMatthieu Moy, Jul 28, 2010
  2. Pat ThoytsJul 30, 2010
  3. Matthieu MoyJul 30, 2010
  4. Pat ThoytsJul 30, 2010
  5. Matthieu MoyJul 30, 2010
  6. Junio C HamanoAug 2, 2010

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