Fix date serialization in JS redirect generation and remove old Python version (#2097)

* Make sure proper ISO date is used in redirect comments

* Purge Python version of `safe_rename`

* Add test

scripts/safe_rename.js

@@ -10,8 +10,9 @@ const log = (...args) => {
     }
 }
 
+/** Return date (without time) in ISO format. */
 const formatDate = (date) => {
-    return `${date.getFullYear()}-${date.getMonth() + 1}-${date.getDate()}`
+    return date.toISOString().slice(0, 10)
 }
 
 const redirectText = (from, to) => {

scripts/safe_rename.py

@@ -1,87 +0,0 @@
-import re
-import requests
-from datetime import date
-
-redirect_text = '''
-[[redirects]]
-    from = "{}"
-    to = "{}"
-'''
-
-redirect_with_date_comment_text = '''
-# Added: {}{}'''
-
-netlify_config_text = None
-local_netlify_config_text = None
-
-# Rules
-def same_path(from_path, to_path, new_redirect):
-    return from_path == to_path
-
-def md_to_mdx(from_path, to_path, new_redirect):
-    # old rule
-    # return '.mdx' not in from_paths[i] and '.mdx' in to_paths[i]
-    return from_path.endswith('.md') and to_path.endswith('.mdx')
-
-def redirect_exists(from_path, to_path, new_redirect):
-    return new_redirect.strip() in local_netlify_config_text
-
-def from_dot_star(from_path, to_path, new_redirect):
-    return from_path == '(.*)'
-
-def is_snippets_rename(from_path, to_path, new_redirect):
-    return '/snippets/' in from_path or '/snippets' in to_path
-
-skip_rules = [
-    same_path,
-    md_to_mdx,
-    redirect_exists,
-    from_dot_star,
-    is_snippets_rename
-]
-
-try:
-    with open("./pr_diff", "r") as git_diff_file:
-        git_diff = git_diff_file.read()
-
-    rename_from_regex = r'rename from contents(.*).md'
-    rename_to_regex = r'rename to contents(.*).md'
-
-    from_paths = re.findall(rename_from_regex, git_diff)
-    to_paths = re.findall(rename_to_regex, git_diff)
-
-    if len(from_paths) > 0 and len(from_paths) == len(to_paths):
-        new_redirects = ''
-
-        for i in range(len(from_paths)):
-            # Load existing remote redirect config
-            netlify_config_text = requests.get('https://raw.githubusercontent.com/PostHog/posthog.com/master/netlify.toml').text
-
-            # Load existing redirect file to be used to avoid duplicates
-            local_netlify_config_file = open("./netlify.toml", "r")
-            local_netlify_config_text = local_netlify_config_file.read()
-            local_netlify_config_file.close()
-
-            # handle index default directory files. /path/index will become /path
-            from_paths[i] = re.sub("\/index$", "", from_paths[i])
-            to_paths[i] = re.sub("\/index$", "", to_paths[i])
-            
-            new_redirect = redirect_text.format(from_paths[i], to_paths[i])
-
-            print(f'Testing if redirects are required for: "{from_paths[i]}" to "{to_paths[i]}"')
-            skip_redirect = False
-            for skip_rule in skip_rules:
-                if(not skip_redirect):
-                    skip_redirect = skip_rule(from_paths[i], to_paths[i], new_redirect)
-                    print(f'Rule: "{skip_rule.__name__}"', 'skip_redirect?', skip_redirect)
-                    
-            if not skip_redirect:
-                print("Creating redirect: ", new_redirect)
-                new_redirects += redirect_with_date_comment_text.format(date.today(), new_redirect)
-            else:
-                print('Not including redirect:', new_redirect)
-        
-        with open("./netlify.toml", "a") as netlify_config:
-            netlify_config.write(new_redirects)
-except Exception as e:
-    print(e)

scripts/safe_rename.test.js

@@ -1,6 +1,8 @@
 /* eslint-disable @typescript-eslint/no-var-requires */
 const getRedirects = require('./safe_rename').getRedirects
 
+jest.useFakeTimers().setSystemTime(new Date('2021-08-09').getTime())
+
 const debug = false
 
 const singleRenameGitDiff = `
@@ -33,6 +35,7 @@ test('redirect will be added for single file rename', async () => {
     const redirects = await getRedirects({ gitDiff, localConfig, remoteConfig, debug })
 
     expect(redirects.length).toBe(1)
+    expect(redirects[0]).toContain('# Added: 2021-08-09')
     expect(redirects[0]).toContain('from = "/docs/one"')
     expect(redirects[0]).toContain('to = "/docs/two"')
 })
@@ -46,8 +49,12 @@ test('redirect will be added for multi file rename', async () => {
     const redirects = await getRedirects({ gitDiff, localConfig, remoteConfig, debug })
 
     expect(redirects.length).toBe(3)
+
+    expect(redirects[0]).toContain('# Added: 2021-08-09')
     expect(redirects[0]).toContain('from = "/docs/one"')
     expect(redirects[0]).toContain('to = "/docs/two"')
+
+    expect(redirects[1]).toContain('# Added: 2021-08-09')
     expect(redirects[1]).toContain('from = "/docs/cheese"')
     expect(redirects[1]).toContain('to = "/docs/mushroom"')
     expect(redirects[2]).toContain('from = "/docs/fish"')