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Merge pull request #5633 from ahmadia/improve_no_lessc_error

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Provide more help if lessc is not found.
This commit is contained in:
Min RK 2014-04-15 20:58:48 -07:00
commit 5476c5f028
1 changed files with 7 additions and 3 deletions
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10
IPython/html/fabfile.py vendored
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@ -33,13 +33,17 @@ def _compile_less(source, target, minify=True, verbose=False):
ver_flag = '--verbose' if verbose is True else ''
# pin less to 1.4
out = check_output(['lessc', '--version'])
try:
out = check_output(['lessc', '--version'])
except OSError as err:
raise ValueError("Unable to find lessc. Please install lessc >= %s and < %s " \
% (min_less_version, max_less_version))
out = out.decode('utf8', 'replace')
less_version = out.split()[1]
if V(less_version) < V(min_less_version):
raise ValueError("lessc too old: %s < %s" % (less_version, min_less_version))
if V(less_version) > V(max_less_version):
raise ValueError("lessc too new: %s > %s" % (less_version, max_less_version))
if V(less_version) >= V(max_less_version):
raise ValueError("lessc too new: %s >= %s" % (less_version, max_less_version))
with lcd(static_dir):
local('lessc {min_flag} {ver_flag} {source} {target}'.format(**locals()))