almost working impl

TODO.md

@@ -36,6 +36,7 @@
     - [ ] existence of `.local`, `.local/programs`, `.local/bin`
     - [ ] that permissions are ok
     - [ ] that `.local/bin` are in `PATH`
+  - [ ] UI, add some progress to install
   - [ ] allow to list versions
   - [ ] allow to force installation of a given version
   - [-] improve search algorithm, fuzzing

cliget.py

@@ -1,15 +1,17 @@
 """Cliget - install cli tools in you user profile
 
 Usage:
-  cliget [-v] [-c URL] list
   cliget [-v] [-c URL] search PAT
+  cliget [-v] [-c URL] info TOOL
+  cliget [-v] [-c URL] list
   cliget [-v] [-c URL] versions TOOLS ...
   cliget [-v] [-c URL] allversions TOOL
   cliget [-v] [-c URL] install TOOLS ...
   cliget [-v] [-c URL] update [--all] [TOOLS ...]
 
-list               list all installed tools
 search             search catalog for tools with the given pattern
+info               show details of an entry in the catalog
+list               list all installed tools
 versions TOOLS     list current and latest versions of some tools
 allversions TOOL   list all versions of a tool
 install TOOLS      install some tools
@@ -25,7 +27,7 @@ Options:
 """
 
 import logging
-import sys, os
+import sys, os, shutil
 from docopt import docopt
 from yaml import load, SafeLoader
 from semver import VersionInfo
@@ -39,7 +41,7 @@ def trace(*mess):
     print("TRACE", mess)
 
 def warn(*mess):
-  print(f"WARN {mess[0]}")
+  print("WARN", mess)
 
 class DotDict(dict):
         def __getattr__(self, name):
@@ -61,12 +63,12 @@ def _find_semver(s:str) -> VersionInfo:
     except Exception as e:
       trace("parse error", e)
   return ver
-    
 
 def _local_version(cmd):
   ver = VersionInfo(0)
   try:
     first_line = run([cmd, '--version'], input='', text=True, capture_output=True, check=True, timeout=0.1).stdout.split('\n')[0]
+    trace(cmd, '=>', first_line)
     ver = _find_semver(first_line)
   except Exception as e:
     trace("run error", e)
@@ -92,6 +94,16 @@ def dolist(options):
   for (cli, _, ver) in _internal_list(options):
     print(cli, ver)
 
+def doinfo(options):
+  tool = options.TOOL
+  ctl = _load_catalog(options)
+  if tool in ctl:
+    print(tool)
+    for (k,v) in ctl[tool].items():
+      print(f'  {k}: {v}')
+  else:
+    warn(f'{tool} not in catalog')
+
 def dosearch(options):
   pat = options.PAT
   ctl = _load_catalog(options)
@@ -100,7 +112,7 @@ def dosearch(options):
     trace(cli, props)
     rtitle = fuzz.ratio(cli, pat)
     rdesc = fuzz.partial_token_set_ratio(props['desc'], pat)
-    score = 0.2 * rtitle + rdesc
+    score = rtitle + rdesc if rtitle>60 else rdesc
     L.append((cli, props['desc'], score))
   L = sorted(L, key=lambda x: -x[-1])
   # TODO format a as table
@@ -114,7 +126,6 @@ def dolistupdate(options):
       pass
   pass
 
-
 def _gh_versions(repo:str) -> [VersionInfo|None]:
   [owner, repo] = repo.split("/")
   url = f'https://api.github.com/repos/{owner}/{repo}/releases'
@@ -140,7 +151,7 @@ def doversions(options):
       print(f"{cli} | {lver} | {rver}")
     else:
       warn(f'{tool} not in catalog')
-  
+
 def doallversions(options):
   tool = options.TOOL
   ctl = _load_catalog(options)
@@ -152,7 +163,6 @@ def doallversions(options):
       print("\n".join(vers))
   else:
     warn(f'{tool} not in catalog')
-  
 
 def doinstall(options):
   tools = options.TOOLS
@@ -161,19 +171,53 @@ def doinstall(options):
     if tool in ctl:
       props  = ctl[tool]
       if props.github:
-        vers = _gh_version(props.github)
-        trace(vers)
+        rver = _gh_version(props.github)
+        lver = _local_version(tool)
+        trace(lver,rver)
+        if rver > lver:
+          _perform_install(tool, props.github)
     else:
       warn(f'{tool} not in catalog')
-  
-def perform_install(cli, repo):
-  # get arch and os
-  # dl asset
-  # mkdirs
-  # unpack
-  # symlink
 
-  
+def _match_arch_machine(name:str) -> bool:
+  sysname = os.uname().sysname.lower()  # os
+  machine = os.uname().machine.lower()  # arch
+  return name.lower().find(sysname)>0 and name.lower().find(machine)>0  
+
+def _perform_install(cli, repo, version=None):
+  # get asset list
+  [owner, repo] = repo.split("/")
+  url = f'https://api.github.com/repos/{owner}/{repo}/releases/latest'
+  r = requests.get(url)
+  assets = r.json()['assets']
+  trace(assets)
+  # select right asset
+  asset = DotDict(next(filter(lambda x: _match_arch_machine(x['name']),assets)))
+  trace(asset.name, asset.url)
+  # mkdirs
+  p = os.path
+  home = os.environ["HOME"]
+  assetshome = p.join(home, '.cache/cliget/assets')
+  os.makedirs(assetshome, exist_ok=True)
+  location = p.join(assetshome, asset.name)
+  trace(f"will dl {location}")
+  # dl asset if not already there
+  if not p.exists(location):
+    dlurl = requests.get(asset.url).json()['browser_download_url']
+    r = requests.get(dlurl, allow_redirects=True, stream=True)
+    with open(location, 'wb') as fd:
+          shutil.copyfileobj(r.raw, fd)
+    trace("downloaded")
+  # unpack asset
+  if not asset.name.endswith('.tar.gz'):
+    raise ValueError('package type not handled')
+  progloc = p.join(home, '.local/program/'+cli)
+  trace("process tgz")
+  os.makedirs(progloc, exist_ok=True)
+  run(["tar", "xfz", location, "-C", progloc])
+  # symlink
+  os.symlink(p.join(progloc, cli), p.join(home, '.local/bin', cli))
+
 if __name__ == '__main__':
   if "DEBUG" in os.environ:
     logging.basicConfig(level=logging.DEBUG)
@@ -183,13 +227,15 @@ if __name__ == '__main__':
   options = docopt(__doc__, version='Cliget 0.1.0')
   options = DotDict({k.replace('-','_'):v for (k,v) in options.items() if v is not None})
   trace(options)
-  if options.list:
+  if options.info:
+    doinfo(options)
+  elif options.list:
     dolist(options)
   elif options.search:
     dosearch(options)
   elif options.versions:
     doversions(options)
-  elif options.allversions(options):
+  elif options.allversions:
     doallversions(options)
   elif options.install or options.update:
     if not options.__all and len(options.TOOLS)==0: