Replace bash scripts with python scripts

pre-commit.d/autoflake.py

@@ -0,0 +1,47 @@
+#!/usr/bin/env python
+
+import os
+import subprocess
+import sys
+
+from shutil import which
+
+if not os.getenv("VIRTUAL_ENV"):
+    sys.exit("Ensure your virtualenv is activated.")
+
+file_extensions = (".py",)
+autoflake = os.getenv("AUTOFLAKE_BIN", "autoflake")
+options = [
+    "--in-place",
+    "--remove-unused-variables",
+    "--remove-all-unused-imports",
+    "--ignore-init-module-imports"
+]
+
+if not which(autoflake):
+    sys.exit("Autoflake binary not found")
+
+diff = subprocess.check_output(
+    ["git", "diff", "--cached", "--name-only", "--diff-filter", "ACM"],
+    universal_newlines=True
+)
+
+python_files = [
+    item for item in diff.splitlines() if item.endswith(file_extensions)
+]
+
+if not python_files:
+    sys.exit(0)
+
+try:
+    output = subprocess.check_output(
+        [autoflake, *options, *python_files],
+        universal_newlines=True,
+        stderr=subprocess.STDOUT
+    )
+except subprocess.CalledProcessError as e:
+    print("Formatting was unsuccessful:")
+    sys.exit(e.stdout)
+
+subprocess.run(["git", "add", "-u", *python_files])
+sys.exit(0)

pre-commit.d/autoflake.sh

@@ -1,14 +0,0 @@
-#!/bin/bash
-FILES=$(git diff --cached --name-only --diff-filter=ACM "*.py" | sed 's| |\\ |g')
-
-if [ ! -z "$FILES" ]; then
-    # Format all selected files
-    echo "$FILES" | xargs -I {} /bin/bash -c "/home/sonny/.local/bin/autoflake --in-place --remove-unused-variables {}"
-
-    if [ $? -ne 0 ]; then
-        exit 1
-    fi
-
-    # Add back the modified files to staging
-    echo "$FILES" | xargs git add
-fi

pre-commit.d/black.py

@@ -0,0 +1,43 @@
+#!/usr/bin/env python
+
+import os
+import subprocess
+import sys
+
+from shutil import which
+
+if not os.getenv("VIRTUAL_ENV"):
+    sys.exit("Ensure your virtualenv is activated.")
+
+file_extensions = (".py",)
+line_length = os.getenv("BLACK_LINE_LENGTH", 88)
+black = os.getenv("BLACK_BIN", "black")
+options = ["-l", str(line_length),]
+
+if not which(black):
+    sys.exit("Black binary not found")
+
+diff = subprocess.check_output(
+    ["git", "diff", "--cached", "--name-only", "--diff-filter", "ACM"],
+    universal_newlines=True
+)
+
+python_files = [
+    item for item in diff.splitlines() if item.endswith(file_extensions)
+]
+
+if not python_files:
+    sys.exit(0)
+
+try:
+    output = subprocess.check_output(
+        [black, *options, *python_files],
+        universal_newlines=True,
+        stderr=subprocess.STDOUT
+    )
+except subprocess.CalledProcessError as e:
+    print("Formatting was unsuccessful:")
+    sys.exit(e.stdout)
+
+subprocess.run(["git", "add", "-u", *python_files])
+sys.exit(0)

pre-commit.d/isort.py

@@ -0,0 +1,39 @@
+#!/usr/bin/env python
+
+import os
+import subprocess
+import sys
+
+from shutil import which
+
+if not os.getenv("VIRTUAL_ENV"):
+    sys.exit("Ensure your virtualenv is activated.")
+
+file_extensions = (".py",)
+isort = os.getenv("ISORT_BIN", "isort")
+
+if not which(isort):
+    sys.exit("Isort binary not found")
+
+diff = subprocess.check_output(
+    ["git", "diff", "--cached", "--name-only", "--diff-filter", "ACM"],
+    universal_newlines=True
+)
+
+python_files = [
+    item for item in diff.splitlines() if item.endswith(file_extensions)
+]
+
+if not python_files:
+    sys.exit(0)
+
+try:
+    output = subprocess.check_output(
+        [isort, *python_files], universal_newlines=True, stderr=subprocess.STDOUT
+    )
+except subprocess.CalledProcessError as e:
+    print("Formatting was unsuccessful:")
+    sys.exit(e.stdout)
+
+subprocess.run(["git", "add", "-u", *python_files])
+sys.exit(0)

pre-commit.d/isort.sh

@@ -1,14 +0,0 @@
-#!/bin/bash
-FILES=$(git diff --cached --name-only --diff-filter=ACM "*.py" | sed 's| |\\ |g')
-
-if [ ! -z "$FILES" ]; then
-    # Format all selected files
-    echo "$FILES" | xargs ./env/bin/isort
-
-    if [ $? -ne 0 ]; then
-        exit 1
-    fi
-
-    # Add back the modified/prettified files to staging
-    echo "$FILES" | xargs git add
-fi

pre-commit.d/prettier.py

@@ -0,0 +1,42 @@
+#!/usr/bin/env python
+
+import os
+import subprocess
+import sys
+
+from shutil import which
+
+if not os.getenv("VIRTUAL_ENV"):
+    sys.exit("Ensure your virtualenv is activated.")
+
+file_extensions = (".js", ".jsx",)
+prettier = os.getenv("PRETTIER_BIN", "./node_modules/.bin/prettier")
+options = ["--write"]
+
+if not which(prettier):
+    sys.exit("Prettier binary not found")
+
+diff = subprocess.check_output(
+    ["git", "diff", "--cached", "--name-only", "--diff-filter", "ACM"],
+    universal_newlines=True
+)
+
+javascript_files = [
+    item for item in diff.splitlines() if item.endswith(file_extensions)
+]
+
+if not javascript_files:
+    sys.exit(0)
+
+try:
+    output = subprocess.check_output(
+        [prettier, *options, *javascript_files],
+        universal_newlines=True,
+        stderr=subprocess.STDOUT
+    )
+except subprocess.CalledProcessError as e:
+    print("Formatting was unsuccessful:")
+    sys.exit(e.stdout)
+
+subprocess.run(["git", "add", "-u", *javascript_files])
+sys.exit(0)

pre-commit.d/prettier.sh

@@ -1,14 +0,0 @@
-#!/bin/sh
-FILES=$(git diff --cached --name-only --diff-filter=ACM "*.js" | sed 's| |\\ |g')
-
-if [ ! -z "$FILES" ]; then
-    # Prettify all selected files
-    echo "$FILES" | xargs ./node_modules/.bin/prettier --write
-
-    if [ $? -ne 0 ]; then
-        exit 1
-    fi
-
-    # Add back the modified/prettified files to staging
-    echo "$FILES" | xargs git add
-fi

pre-commit.d/yapf.sh

@@ -1,14 +0,0 @@
-#!/bin/bash
-FILES=$(git diff --cached --name-only --diff-filter=ACM "*.py" | sed 's| |\\ |g')
-
-if [ ! -z "$FILES" ]; then
-    # Format all selected files
-    echo "$FILES" | xargs ./env/bin/yapf --in-place --verbose --style=./yapf.conf
-
-    if [ $? -ne 0 ]; then
-        exit 1
-    fi
-
-    # Add back the modified files to staging
-    echo "$FILES" | xargs git add
-fi