tools: make fast.v and fast_job.v more self sufficient

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 {

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++