Closes #381: oh-my-fish self update

plugins/omf/omf.fish

@@ -13,6 +13,12 @@ function omf -d "Oh My Fish helper"
         omf.packages --update
       case 'list' 'ls'
         omf.packages --list
+      case 'self-update'
+        omf.git --update $fish_path
+
+        if [ $status -eq 0 ]
+          omf.log 'green' 'Oh My Fish has been successfully updated.'
+        end
       case '*'
         omf.helper
     end

plugins/omf/omf.git.fish

+function omf.git
+  switch $argv[1]
+    case '--clone'
+      set -l repo_url $argv[2]
+      set -l path $argv[3]
+
+      git clone --quiet $repo_url $path ^ /tmp/oh-my-fish.clone.log
+    case '--update'
+      set -l path $argv[2]
+      return (cd $path; and git pull --rebase > /dev/null; echo $status)
+    case '*'
+      omf.log red 'Unknown option'
+  end
+end

plugins/omf/omf.helper.fish

@@ -12,5 +12,6 @@ function omf.helper -d 'Prints all functions supported by Oh My Fish helper'
   omf.log normal '    omf install'
   omf.log normal '    omf update'
   omf.log normal '    omf list'
+  omf.log normal '    omf self-update'
 end
 

plugins/omf/omf.packages.fish

@@ -65,6 +65,7 @@ function omf.packages.report.failed -e omf_package_install_failed -e omf_package
 
   set_color yellow
   cat /tmp/oh-my-fish.clone.log
+  echo -e ''
   set_color normal
 
   set __omf_packages_modified (expr $__omf_packages_modified + 1)

plugins/omf/omf.packages.install.fish

@@ -15,7 +15,7 @@ function omf.packages.install --argument-names type name -d "Install a plugin or
         # Plugin is already installed. Skipping.
       else
         emit omf_package_installing $name
-        git clone --quiet "https://github.com/oh-my-fish/plugin-$name" $fish_path/plugins/$name ^ /tmp/oh-my-fish.clone.log
+        omf.git --clone "https://github.com/oh-my-fish/plugin-$name" $fish_path/plugins/$name
 
         if [ $status -eq 0 ]
           emit omf_package_installed $name
@@ -28,7 +28,7 @@ function omf.packages.install --argument-names type name -d "Install a plugin or
         # Theme is already installed. Skipping.
       else
         emit omf_package_installing $name
-        git clone --quiet "https://github.com/oh-my-fish/theme-$name" $fish_path/themes/$name ^ /tmp/oh-my-fish.clone.log
+        omf.git --clone "https://github.com/oh-my-fish/plugin-$name" $fish_path/themes/$name
 
         if [ $status -eq 0 ]
           emit omf_package_installed $name

plugins/omf/omf.packages.update.fish

@@ -15,12 +15,12 @@ function omf.packages.update --argument-names type name -d "Update a plugin or t
     case '--plugin'
       if [ -e $fish_path/plugins/$name -a -e $fish_path/plugins/$name/.git ]
         emit omf_package_updating $name
-        echo (cd $fish_path/plugins/$name; and git pull --rebase > /dev/null) >/dev/null
+        omf.git --update $fish_path/plugins/$name
         emit omf_package_updated $name
       else
         if [ -e $fish_custom/plugins/$name -a -e $fish_custom/plugins/$name/.git ]
           emit omf_package_updating $name
-          echo (cd $fish_custom/plugins/$name; and git pull --rebase > /dev/null) >/dev/null
+          omf.git --update $fish_path/plugins/$name
           emit omf_package_updated $name
         else
           # Plugin is not installed or not a git repo. Skipping.
@@ -29,12 +29,12 @@ function omf.packages.update --argument-names type name -d "Update a plugin or t
     case '--theme'
       if [ -e $fish_path/themes/$name -a -e $fish_path/themes/$name/.git ]
         emit omf_package_updating $name
-        echo (cd $fish_path/themes/$name; and git pull --rebase > /dev/null) >/dev/null
+        omf.git --update $fish_path/themes/$name
         emit omf_package_updated $name
       else
         if [ -e $fish_custom/themes/$name -a -e $fish_custom/themes/$name/.git ]
           emit omf_package_updating $name
-          echo (cd $fish_custom/themes/$name; and git pull --rebase > /dev/null) >/dev/null
+          omf.git --update $fish_custom/themes/$name
           emit omf_package_updated $name
         else
           # Theme is not installed or not a git repo. Skipping.