From e5eac13db392f851f15e014a1c20debb22da89b2 Mon Sep 17 00:00:00 2001
From: PJ Eby <distutils-sig@python.org>
Date: Wed, 6 Jul 2005 03:46:16 +0000
Subject: Added ``develop`` command to ``setuptools``-based packages.  This
 command installs an ``.egg-link`` pointing to the package's source directory,
 and script wrappers that ``execfile()`` the source versions of the package's
 scripts.  This lets you put your development checkout(s) on sys.path without
 having to actually install them.  (To uninstall the link, use use ``setup.py
 develop --uninstall``.)

--HG--
branch : setuptools
extra : convert_revision : svn%3A6015fed2-1504-0410-9fe1-9d1591cc4771/sandbox/trunk/setuptools%4041080
---
 setuptools/command/develop.py | 164 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 164 insertions(+)
 create mode 100755 setuptools/command/develop.py

(limited to 'setuptools/command/develop.py')

diff --git a/setuptools/command/develop.py b/setuptools/command/develop.py
new file mode 100755
index 00000000..fd9f2dfd
--- /dev/null
+++ b/setuptools/command/develop.py
@@ -0,0 +1,164 @@
+from setuptools.command.easy_install import easy_install
+from distutils.util import convert_path
+from pkg_resources import Distribution, PathMetadata
+from distutils import log
+import sys, os
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+class develop(easy_install):
+    """Set up package for development"""
+
+    description = "install package in 'development mode'"
+
+    user_options = [
+        ("install-dir=", "d", "link package from DIR"),
+        ("script-dir=", "s", "create script wrappers in DIR"),
+        ("multi-version", "m", "make apps have to require() a version"),
+        ("exclude-scripts", "x", "Don't install scripts"),
+        ("always-copy", "a", "Copy all needed dependencies to install dir"),
+        ("uninstall", "u", "Uninstall this source package"),
+    ]
+
+    boolean_options = [
+        'multi-version', 'exclude-scripts', 'always-copy', 'uninstall'
+    ]
+
+    command_consumes_arguments = False  # override base
+
+    def initialize_options(self):
+        self.uninstall = None
+        easy_install.initialize_options(self)
+
+    def finalize_options(self):
+        ei = self.get_finalized_command("egg_info")
+        self.args = [ei.egg_name]
+        easy_install.finalize_options(self)
+        self.egg_link = os.path.join(self.install_dir, ei.egg_name+'.egg-link')
+        self.egg_base = ei.egg_base
+        self.egg_path = os.path.abspath(ei.egg_base)
+
+        # Make a distribution for the package's source
+        self.dist = Distribution(
+            self.egg_path,
+            PathMetadata(self.egg_path, os.path.abspath(ei.egg_info)),
+            name = ei.egg_name
+        )
+
+
+
+    def run(self):
+        if self.uninstall:
+            self.multi_version = True
+            self.uninstall_link()
+        else:
+            self.install_for_development()
+
+    def install_for_development(self):
+        # Ensure metadata is up-to-date
+        self.run_command('egg_info')
+        ei = self.get_finalized_command("egg_info")
+
+        # Build extensions in-place
+        self.reinitialize_command('build_ext', inplace=1)
+        self.run_command('build_ext')
+
+
+        # create an .egg-link in the installation dir, pointing to our egg
+        log.info("Creating %s (link to %s)", self.egg_link, self.egg_base)
+        if not self.dry_run:
+            f = open(self.egg_link,"w")
+            f.write(self.egg_path)
+            f.close()
+
+        # postprocess the installed distro, fixing up .pth, installing scripts,
+        # and handling requirements
+        self.process_distribution(None, self.dist)
+
+    def uninstall_link(self):
+        if os.path.exists(self.egg_link):
+            log.info("Removing %s (link to %s)", self.egg_link, self.egg_base)
+            contents = [line.rstrip() for line in file(self.egg_link)]
+            if contents != [self.egg_path]:
+                log.warn("Link points to %s: uninstall aborted", contents)
+                return
+            if not self.dry_run:
+                os.unlink(self.egg_link)
+        self.update_pth(self.dist)  # remove any .pth link to us
+        if self.distribution.scripts:
+            log.warn("Note: you must uninstall or replace scripts manually!")
+
+    def install_egg_scripts(self, dist):
+        if dist is not self.dist:
+            # Installing a dependency, so fall back to normal behavior
+            return easy_install.install_egg_scripts(self,dist)
+
+        # create wrapper scripts in the script dir, pointing to dist.scripts
+        for script_name in self.distribution.scripts or []:
+            script_path = os.path.abspath(convert_path(script_name))
+            script_name = os.path.basename(script_path)
+            f = open(script_path,'rU')
+            script_text = f.read()
+            f.close()
+            self.install_script(dist, script_name, script_text, script_path)
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-- 
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