From 9a0f4d846190c3e1a19a84902a58027b4a079dfb Mon Sep 17 00:00:00 2001
From: vlang-bot <alexander+bot@vlang.io>
Date: Thu, 19 Sep 2024 13:51:27 +0300
Subject: [PATCH] tools: make fast.v and fast_job.v more self sufficient

---
 cmd/tools/fast/fast.v     |  9 ++++++---
 cmd/tools/fast/fast_job.v | 24 ++++++++++++++++--------
 2 files changed, 22 insertions(+), 11 deletions(-)

diff --git a/cmd/tools/fast/fast.v b/cmd/tools/fast/fast.v
index 56f125fa171ea8..791392ebbeaa22 100644
--- a/cmd/tools/fast/fast.v
+++ b/cmd/tools/fast/fast.v
@@ -14,11 +14,11 @@ const discard_highest_samples = 16
 
 const voptions = ' -skip-unused -show-timings -stats '
 
-const fast_dir = os.dir(@FILE)
+const fast_dir = os.real_path(os.dir(@FILE))
 
-const fast_log_path = os.join_path(fast_dir, 'fast.log')
+const fast_log_path = os.real_path(os.join_path(fast_dir, 'fast.log'))
 
-const vdir = os.dir(os.dir(os.dir(fast_dir)))
+const vdir = os.real_path(os.dir(os.dir(os.dir(fast_dir))))
 
 fn elog(msg string) {
 	line := '${time.now().format_ss_micro()} ${msg}\n'
@@ -40,6 +40,9 @@ fn lexec(cmd string) string {
 }
 
 fn main() {
+	// ensure all log messages will be visible to the observers, even if the program panics
+	log.set_always_flush(true)
+
 	total_sw := time.new_stopwatch()
 	elog('fast.html generator start')
 	defer {
diff --git a/cmd/tools/fast/fast_job.v b/cmd/tools/fast/fast_job.v
index cc61161ad6bfe1..542bf01fde570b 100644
--- a/cmd/tools/fast/fast_job.v
+++ b/cmd/tools/fast/fast_job.v
@@ -31,6 +31,17 @@ fn delay() {
 	time.sleep(sleep_period * time.second)
 }
 
+fn check_output_repo(url string, branch string, folder string) {
+	if os.exists(folder) {
+		elog('Note: ${folder} already exists; using it.')
+		return
+	}
+	cmd := 'git clone --filter=blob:none --branch=${branch}  ${url}  ${folder}'
+	elog('Note: ${folder} is missing. Cloning to `${folder}`, with: `${cmd}` ...')
+	res := os.system(cmd)
+	elog('... cloning done, result: ${res}')
+}
+
 fn main() {
 	elog('fast_job start setup ...')
 	// ensure a more stable working environment for the used tools, independent on how this executable was started:
@@ -48,14 +59,11 @@ fn main() {
 		elog('fast_job end')
 	}
 
-	if !os.exists('fast.vlang.io/') {
-		println('cloning the fast.vlang.io/ repo...')
-		os.system('git clone git@github.com:/vlang/website.git fast.vlang.io/')
-	}
-	if !os.exists('docs.vlang.io') {
-		println('cloning the docs.vlang.io/ repo...')
-		os.system('git clone git@github.com:/vlang/docs.git docs.vlang.io/')
-	}
+	elog('fast_job clone output repos...')
+	check_output_repo('https://github.com/vlang/website', 'gh-pages', 'fast.vlang.io/')
+	check_output_repo('https://github.com/vlang/docs/', 'main', 'docs.vlang.io/')
+	check_output_repo('https://github.com/vlang/docs/', 'generator', 'docs.vlang.io/docs_generator/')
+
 	mut i := 0
 	for {
 		i++