nixpkgs/pkgs/development/python-modules/dot2tex/path.patch
2020-06-14 15:10:07 +02:00

105 lines
3.4 KiB
Diff

diff --git a/dot2tex/dotparsing.py b/dot2tex/dotparsing.py
index 391b5dc..6dc77a3 100644
--- a/dot2tex/dotparsing.py
+++ b/dot2tex/dotparsing.py
@@ -180,18 +180,8 @@ def __find_executables(path):
def find_graphviz():
"""Locate Graphviz's executables in the system.
- Tries three methods:
-
- First: Windows Registry (Windows only)
- This requires Mark Hammond's pywin32 is installed.
-
- Secondly: Search the path
- It will look for 'dot', 'twopi' and 'neato' in all the directories
- specified in the PATH environment variable.
-
- Thirdly: Default install location (Windows only)
- It will look for 'dot', 'twopi' and 'neato' in the default install
- location under the "Program Files" directory.
+ It will look for 'dot', 'twopi' and 'neato' in
+ @graphviz@/bin.
It will return a dictionary containing the program names as keys
and their paths as values.
@@ -199,75 +189,9 @@ def find_graphviz():
If this fails, it returns None.
"""
- # Method 1 (Windows only)
- #
- if os.sys.platform == 'win32':
- try:
- import win32api, win32con
-
- # Get the GraphViz install path from the registry
- #
- hkey = win32api.RegOpenKeyEx(win32con.HKEY_LOCAL_MACHINE,
- "SOFTWARE\AT&T Research Labs\Graphviz", 0, win32con.KEY_QUERY_VALUE)
-
- path = win32api.RegQueryValueEx(hkey, "InstallPath")[0]
- win32api.RegCloseKey(hkey)
-
- # Now append the "bin" subdirectory:
- #
- path = os.path.join(path, "bin")
- progs = __find_executables(path)
- if progs is not None:
- # print("Used Windows registry")
- return progs
-
- except ImportError:
- # Print a messaged suggesting they install these?
- #
- log.debug('The win32api is not installed')
- pass
- except:
- log.debug('Failed to access the registry key')
-
- # Method 2 (Linux, Windows etc)
- #
- if 'PATH' in os.environ:
- for path in os.environ['PATH'].split(os.pathsep):
- progs = __find_executables(path)
- if progs is not None:
- return progs
-
- # Method 3 (Windows only)
- #
- if os.sys.platform == 'win32':
- # Try and work out the equivalent of "C:\Program Files" on this
- # machine (might be on drive D:, or in a different language)
- #
- if 'PROGRAMFILES' in os.environ:
- # Note, we could also use the win32api to get this
- # information, but win32api may not be installed.
-
- path = os.path.join(os.environ['PROGRAMFILES'], 'ATT', 'GraphViz', 'bin')
-
- else:
- # Just in case, try the default...
- path = r"C:\Program Files\att\Graphviz\bin"
-
- progs = __find_executables(path)
-
- if progs is not None:
- # print("Used default install location")
- return progs
-
- for path in (
- '/usr/bin', '/usr/local/bin',
- '/opt/local/bin',
- '/opt/bin', '/sw/bin', '/usr/share',
- '/Applications/Graphviz.app/Contents/MacOS/'):
- progs = __find_executables(path)
- if progs is not None:
- # print("Used path")
- return progs
+ progs = __find_executables('@graphviz@/bin')
+ if progs is not None:
+ return progs
# Failed to find GraphViz
#