git-sed: limit paths via pathspec

Commands.md

@@ -1044,6 +1044,13 @@ git undo 3
 
 Run grep as directed but replace the given files with the pattern.
 
+For example,
+```bash
+$ git sed 'this' 'that'
+$ git sed 'this' 'that' g
+$ git sed 'this' 'that' -- path/ path2/
+```
+
 ## git setup
 
 Set up a git repository (if one doesn't exist), add all files, and make an initial commit. `dir` defaults to the current working directory.

bin/git-sed

@@ -16,6 +16,7 @@ do_commit() {
     true
 }
 
+pathspec=
 while [ "X$1" != "X" ]; do
     case "$1" in
         -c|--commit)
@@ -44,6 +45,10 @@ actual command:
             usage
             exit
             ;;
+        --)
+            pathspec="$*"
+            break
+            ;;
         -*)
             usage
             echo "unknown flag: $1"
@@ -88,10 +93,12 @@ r=$(xargs -r false < /dev/null > /dev/null 2>&1 && echo r)
 need_bak=$(sed -i s/hello/world/ "$(git_extra_mktemp)" > /dev/null 2>&1 || echo true)
 
 if [ "$need_bak" ]; then
-    command="git grep -lz '$search' | xargs -0$r sed -i '' 's$sep$search$sep$replacement$sep$flags'"
-    git grep -lz "$search" | xargs -0"$r" sed -i '' "s$sep$search$sep$replacement$sep$flags"
+    command="git grep -lz '$search' $pathspec | xargs -0$r sed -i '' 's$sep$search$sep$replacement$sep$flags'"
+    # shellcheck disable=SC2086
+    git grep -lz "$search" $pathspec | xargs -0"$r" sed -i '' "s$sep$search$sep$replacement$sep$flags"
 else
-    command="git grep -lz '$search' | xargs -0$r sed -i 's$sep$search$sep$replacement$sep$flags'"
-    git grep -lz "$search" | xargs -0"$r" sed -i "s$sep$search$sep$replacement$sep$flags"
+    command="git grep -lz '$search' $pathspec | xargs -0$r sed -i 's$sep$search$sep$replacement$sep$flags'"
+    # shellcheck disable=SC2086
+    git grep -lz "$search" $pathspec | xargs -0"$r" sed -i "s$sep$search$sep$replacement$sep$flags"
 fi
 do_commit

man/git-sed.1

@@ -1,13 +1,13 @@
 .\" generated with Ronn/v0.7.3
 .\" http://github.com/rtomayko/ronn/tree/0.7.3
 .
-.TH "GIT\-SED" "1" "May 2018" "" "Git Extras"
+.TH "GIT\-SED" "1" "January 2020" "" "Git Extras"
 .
 .SH "NAME"
 \fBgit\-sed\fR \- replace patterns in git\-controlled files
 .
 .SH "SYNOPSIS"
-\fBgit\-sed\fR [ \-c ] [ \-f \fIflags\fR ] \fIsearch\fR \fIreplacement\fR [ \fIflags\fR ]
+\fBgit\-sed\fR [ \-c ] [ \-f \fIflags\fR ] \fIsearch\fR \fIreplacement\fR [ \fIflags\fR ] [ \-\- \fIpathspec\fR ]
 .
 .SH "DESCRIPTION"
 Run git grep and then send results to sed for replacement with the given flags, if they are provided via \-f or as the third argument\.
@@ -19,7 +19,7 @@ Also runs git commit if \-c is provided\.
 \-c
 .
 .P
-commit the resulting changes with a standard commit message detailing the exact command ran\. will fail if there are unstaged changes\.
+commit the resulting changes with a standard commit message detailing the exact command ran\. It will fail if there are unstaged changes\.
 .
 .P
 <flags> \-f <flags>
@@ -39,6 +39,12 @@ the pattern passed to grep and to the first part of the sed expression\.
 .P
 the replacement passed to sed, the second part of the sed expression\.
 .
+.P
+\-\- <pathspec>
+.
+.P
+limit the paths which will be applied on\. Read https://git\-scm\.com/docs/gitglossary\.html#Documentation/gitglossary\.txt\-aiddefpathspecapathspec for the supported patterns of pathspec\.
+.
 .SH "EXAMPLES"
 .
 .nf
@@ -51,11 +57,13 @@ $ git sed \-c \'do_stuff\' \'stuff\'
 $ git sed \-f g do_stuff stuff
 # \.\. g is actually pretty important, otherwise you will miss some
 # stuff!
+$ git sed \'my_method\' \'do_stuff\' \-\- lake/
+# \.\.\. only replace \'my_method\' occurs under lake/\.
 .
 .fi
 .
 .SH "AUTHOR"
-Written by Antoine Beaupré <\fIanarcat@debian\.org\fR> from inspiration by https://github\.com/da\-x/git\-search\-replace and http://stackoverflow\.com/questions/9651898/is\-there\-a\-git\-sed\-or\-equivalent
+Written by Antoine Beaupré <\fIanarcat@debian\.org\fR> from inspiration by https://github\.com/da\-x/git\-search\-replace and https://stackoverflow\.com/questions/9651898/is\-there\-a\-git\-sed\-or\-equivalent
 .
 .SH "REPORTING BUGS"
 <\fIhttps://github\.com/tj/git\-extras/issues\fR>

man/git-sed.md

@@ -3,7 +3,7 @@ git-sed(1) -- replace patterns in git-controlled files
 
 ## SYNOPSIS
 
-`git-sed` [ -c ] [ -f <flags> ] <search> <replacement> [ <flags> ]
+`git-sed` [ -c ] [ -f <flags> ] <search> <replacement> [ <flags> ] [ -- <pathspec> ]
 
 ## DESCRIPTION
 
@@ -17,7 +17,7 @@ Also runs git commit if -c is provided.
   -c
 
   commit the resulting changes with a standard commit message
-  detailing the exact command ran. will fail if there are unstaged
+  detailing the exact command ran. It will fail if there are unstaged
   changes.
 
   &lt;flags&gt;
@@ -34,6 +34,12 @@ Also runs git commit if -c is provided.
 
   the replacement passed to sed, the second part of the sed expression.
 
+  -- &lt;pathspec&gt;
+
+  limit the paths which will be applied on.
+  Read https://git-scm.com/docs/gitglossary.html#Documentation/gitglossary.txt-aiddefpathspecapathspec
+  for the supported patterns of pathspec.
+
 ## EXAMPLES
 
     $ git sed 'my_function' 'do_stuff'
@@ -44,6 +50,8 @@ Also runs git commit if -c is provided.
     $ git sed -f g do_stuff stuff
     # .. g is actually pretty important, otherwise you will miss some
     # stuff!
+    $ git sed 'my_method' 'do_stuff' -- lake/
+    # ... only replace 'my_method' occurs under lake/.
 
 ## AUTHOR