No match for regexp /diff --git (a\/.*) (b\/.*)\n/

[nWidart]

Q	A
Branch	0.9.1
Bug?	yes
New feature?	no
Question?	no
Documentation?	no
Related tickets

Hi,

I installed GrumPHP with one task, php-cs-fixer, and when commiting a file, it shows the following error.

However when I run php ./vendor/bin/grumphp run it works as expected.

My configuration

parameters:
    git_dir: .
    bin_dir: vendor/bin
    tasks:
      phpcsfixer:
        config_file: .php_cs

• Run GrumpHP:
• git add .
• git commit composer.json "Test"

Result:

[Gitonomy\Git\Exception\RuntimeException]                                                    
  No match for regexp /diff --git (a\/.*) (b\/.*)\n/ Upcoming: diff --git c/composer.json i/c 

[Kanti]

Maybe your git color.ui config is set to always?

Use color.ui true and it should work.

[nWidart]

I have/had this in my gitconfig file:

[color]
     ui = true

[Kanti]

this is more a gitonomy/gitlib problem.
https://github.com/gitonomy/gitlib/issues
Maybe they over there could help out.

[veewee]

I've tried the steps you've described but I am able to commit.
Can you paste your git diff in this issue?

git diff -r -p -m -M --full-index --staged | cat

Did you overwrite the basic git diff command or added a custom diff pager? (For example diff-so-fancy)

[nWidart]

The output is the following:

diff --git c/composer.json i/composer.json
index 2d1cef9d4a4dec5d3f18c7f87eb89eb2559202b2..7814c002ac39b65249575ef200225e65dc44f7b1 100644
--- c/composer.json
+++ i/composer.json
@@ -29,7 +29,9 @@
     "mockery/mockery": "~0.9",
     "orchestra/testbench": "^3.1|^3.2",
     "satooshi/php-coveralls": "~1.0",
-    "phpunit/phpcov": "2.*"
+    "phpunit/phpcov": "2.*",
+    "phpro/grumphp": "^0.9.1",
+    "friendsofphp/php-cs-fixer": "^1.11"
   },
   "autoload": {
     "psr-4": {
diff --git c/grumphp.yml i/grumphp.yml
new file mode 100644
index 0000000000000000000000000000000000000000..a68a3a9d8c2b4612420bee3a8d382a3bf16f9536
--- /dev/null
+++ i/grumphp.yml
@@ -0,0 +1,6 @@
+parameters:
+    git_dir: .
+    bin_dir: vendor/bin
+    tasks:
+      phpcsfixer:
+        config_file: .php_cs

I do indeed have diff-so-fancy installed, could that be reason ?

[nWidart]

In my .gitconfig file I commented out the pager option :

[core]
   autocrlf = input
   editor = vim
   excludesfile = ~/.yadr/git/gitignore
   # pager = diff-so-fancy | less --tabs=4 -RFX

But it's still showing the same error.

[veewee]

I also use diff-so-fancy, but only with the command:

git dsf

If you overwrite default diff behaviour, your diff can't probably be parsed correctly which results in this error.

Take a look at the message:

No match for regexp /diff --git (a\/.*) (b\/.*)\n/ Upcoming: diff --git c/composer.json i/c 

Your diffs looks like:

diff --git c/composer.json i/composer.json
index 2d1cef9d4a4dec5d3f18c7f87eb89eb2559202b2..7814c002ac39b65249575ef200225e65dc44f7b1 100644
--- c/composer.json
+++ i/composer.json

It should look like

diff --git a/file.json b/file.json

Instead it looks like this:

diff --git c/composer.json i/composer.json

This means that gitlib can't parse the diff. I would expect that diff-so-fancy is the cause of this problem.

[nWidart]

Hm I see, that makes sense indeed.

How could I disable diff-so-fancy though, since I've already commented out the pager option.

When I try to source the .gitconfig file, I'm getting the following error

/Users/nicolaswidart/.gitconfig:3: no matches found: [color]

Which is odd since there I have:

[color]
   ui = true

Thanks!

[nWidart]

I also removed diff-so-fancy that was installed with brew, using brew uninstall diff-so-fancy, but the error remains.

[veewee]

I've looked into diff-so-fancy and it doesn't seem to transform those a/ b/ things to i/ c/.
Can you tell me which version of git you've installed. Maybe this is a BC break in git or something?

[nWidart]

Hello,

I'm using git version 2.9.0.

Thanks,

[veewee]

I've just took a look at the git source code and it looks like it is expecting it to be a/ and b/:
https://github.com/git/git/blob/master/t/t4000-diff-format.sh#L38

Not sure what is going wrong in your installation. Maybe you can try to reinstall git?

[nWidart]

Hello,

Thanks to the help of @armababy it was a matter of setting the following:

git config --global diff.mnemonicprefix false

With this, it works..