From 84626341beec9c2b4407ca87929181b25b7e7a65 Mon Sep 17 00:00:00 2001
From: William Boman <william@redwill.se>
Date: Thu, 19 Feb 2015 05:54:50 +0100
Subject: [PATCH 1/4] Add feedback output to git hook init script.

---
 package.json                 |  3 ++-
 scripts/init-git-post-commit | 17 +++++++++++++----
 2 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/package.json b/package.json
index eb54986..bb35516 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,8 @@
   },
   "author": "Ionică Bizău <bizauionica@gmail.com>",
   "contributors": [
-    "Gnab <as0n@gnab.fr>"
+    "Gnab <as0n@gnab.fr>",
+    "William Boman <william@redwill.se>"
   ],
   "license": "MIT",
   "devDependencies": {},
diff --git a/scripts/init-git-post-commit b/scripts/init-git-post-commit
index ebf3d9e..428cd2c 100755
--- a/scripts/init-git-post-commit
+++ b/scripts/init-git-post-commit
@@ -1,10 +1,12 @@
 #!/bin/sh
 
+echo "Setting up git-stats hooks.";
+
 git_templates_dir=$(git config --global --get init.templatedir);
 if [ $? -ne 0 ]; then
 	# Create a new global templatedir if there are none
 	git_templates_dir="${HOME}/.git-templates"
-	git config --global init.templatedir "$git_templates_dir"
+	git config --global init.templatedir "$git_templates_dir" && echo "Set new global git template dir at ${git_templates_dir}"
 fi
 git_hooks_dir="${git_templates_dir}/hooks"
 post_commit_path="${git_hooks_dir}/post-commit"
@@ -25,8 +27,15 @@ EOF
 );
 
 if [ ! -f "$post_commit_path" ]; then
-	printf "#!/bin/sh\n%s" "$hook" > "$post_commit_path"
-	chmod +x "$post_commit_path"
+	printf "#!/bin/sh\n%s" "$hook" > "$post_commit_path" \
+		&& chmod +x "$post_commit_path" \
+		&& echo "Successfully set up git-stats hook at ${post_commit_path}." \
+		&& exit 0
 else
-	printf "\n%s\n" "$hook" >> "$post_commit_path"
+	printf "\n%s\n" "$hook" >> "$post_commit_path" \
+		&& echo "Successfully set up git-stats hook at ${post_commit_path}." \
+		&& exit 0
 fi
+
+echo "Couldn't set up git-stats hook."
+exit 1

From 3800e2487063f9e4f53282eaa4f80ada8787e257 Mon Sep 17 00:00:00 2001
From: William Boman <william@redwill.se>
Date: Fri, 20 Feb 2015 00:11:36 +0100
Subject: [PATCH 2/4] Don't use backticks.

---
 scripts/init-git-post-commit | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/scripts/init-git-post-commit b/scripts/init-git-post-commit
index 428cd2c..a174581 100755
--- a/scripts/init-git-post-commit
+++ b/scripts/init-git-post-commit
@@ -17,9 +17,9 @@ hook=$(cat <<EOF
 
 ### git-stats hook (begin) ###
 # Copy last commit hash to clipboard on commit
-commit_hash=\`git rev-parse HEAD\`
-repo_url=\`git config --get remote.origin.url\`
-commit_date=\`git log -1 --format=%cd\`
+commit_hash=\$(git rev-parse HEAD)
+repo_url=\$(git config --get remote.origin.url)
+commit_date=\$(git log -1 --format=%cd)
 commit_data="\"{ \"date\": \"\$commit_date\", \"url\": \"\$repo_url\", \"hash\": \"\$commit_hash\" }\""
 git-stats --record "\$commit_data"
 ### git-stats hook (end) ###

From 2ca918fd2fd8bf775f166a20a20884031c8f2785 Mon Sep 17 00:00:00 2001
From: William Boman <william@redwill.se>
Date: Fri, 20 Feb 2015 00:12:55 +0100
Subject: [PATCH 3/4] Now ensures the user has required binaries before trying
 to set git hook.

---
 scripts/init-git-post-commit | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/scripts/init-git-post-commit b/scripts/init-git-post-commit
index a174581..8345dec 100755
--- a/scripts/init-git-post-commit
+++ b/scripts/init-git-post-commit
@@ -1,5 +1,13 @@
 #!/bin/sh
 
+check_command() {
+	command -v "$1" > /dev/null 2>&1 || { echo "git-stats hook script requires the \`${1}\` binary in order to run." >&2; exit 1; }
+}
+
+check_command "perl"
+check_command "printf"
+check_command "git"
+
 echo "Setting up git-stats hooks.";
 
 git_templates_dir=$(git config --global --get init.templatedir);

From bd763d8fe832771ab225653255e93008d5e78097 Mon Sep 17 00:00:00 2001
From: William Boman <william@redwill.se>
Date: Fri, 20 Feb 2015 00:57:46 +0100
Subject: [PATCH 4/4] Remove any previous git-stats code blocks in pre-existing
 git hook files.

---
 scripts/init-git-post-commit | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/scripts/init-git-post-commit b/scripts/init-git-post-commit
index 8345dec..a21d6c2 100755
--- a/scripts/init-git-post-commit
+++ b/scripts/init-git-post-commit
@@ -22,14 +22,13 @@ post_commit_path="${git_hooks_dir}/post-commit"
 mkdir -p "$git_hooks_dir"
 
 hook=$(cat <<EOF
-
 ### git-stats hook (begin) ###
 # Copy last commit hash to clipboard on commit
 commit_hash=\$(git rev-parse HEAD)
 repo_url=\$(git config --get remote.origin.url)
 commit_date=\$(git log -1 --format=%cd)
 commit_data="\"{ \"date\": \"\$commit_date\", \"url\": \"\$repo_url\", \"hash\": \"\$commit_hash\" }\""
-git-stats --record "\$commit_data"
+git-stats --record "\${commit_data}"
 ### git-stats hook (end) ###
 EOF
 );
@@ -40,6 +39,8 @@ if [ ! -f "$post_commit_path" ]; then
 		&& echo "Successfully set up git-stats hook at ${post_commit_path}." \
 		&& exit 0
 else
+	# Remove any previous git-stats hook code blocks
+	perl -i -0pe 's/(([ \t]*# Copy last commit hash to clipboard on commit\s*(\n.*){5}\s*git-stats --record "\$commit_data"\s*)|([ \t]*### git-stats hook \(begin\) ###\s*(\n.*){7}\s*### git-stats hook \(end\) ###\s*))//g' "$post_commit_path"
 	printf "\n%s\n" "$hook" >> "$post_commit_path" \
 		&& echo "Successfully set up git-stats hook at ${post_commit_path}." \
 		&& exit 0