Makefile: Simplify handling of python scripts

The sed script intended to add a standard opening to python scripts
was non-compatible and overly complex.  Simplifying it down to a set
of one-liners removes the compatibility issues of newlines.  Moving
the environment alterations from the Makefile to the python scripts
makes also makes the scripts easier to run in-place.

Specifically, the new sed script:

 - Alters the shebang line to use the configured Python.
 - Alters any os.getenv("GITPYTHONLIB") calls to use @@INSTLIBDIR@@ as the
   default.  This will replace any existing default or add a default if
   none is provided.
 - Replaces the @@INSTLIBDIR@@ placeholder with the directory git installs
   its python libraries to.

The last two steps could be combined into a single step, but is left
separate in case someone has another need for @@INSTLIBDIR@@ in their
script.

Suggested-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Brian Gernhardt <brian@gernhardtsoftware.com>
Acked-by: Sverre Rabbelier <srabbelier@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/Makefile b/Makefile
index b1e5f61131ee7cf6fac23ced0b4956b011cd3ee8..29aa5a6ccc274b408699c83cc4b2898a11cb560a 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -1606,14 +1606,8 @@ $(patsubst %.py,%,$(SCRIPT_PYTHON)): % : %.py
        INSTLIBDIR=`MAKEFLAGS= $(MAKE) -C git_remote_helpers -s \
                --no-print-directory prefix='$(prefix_SQ)' DESTDIR='$(DESTDIR_SQ)' \
                instlibdir` && \
-       sed -e '1{' \
-           -e '        s|#!.*python|#!$(PYTHON_PATH_SQ)|' \
-           -e '}' \
-           -e 's|^import sys.*|&; \\\
-                  import os; \\\
-                  sys.path[0] = os.environ.has_key("GITPYTHONLIB") and \\\
-                                os.environ["GITPYTHONLIB"] or \\\
-                                "@@INSTLIBDIR@@"|' \
+       sed -e '1s|#!.*python|#!$(PYTHON_PATH_SQ)|' \
+           -e 's|\(os\.getenv("GITPYTHONLIB"\)[^)]*)|\1,"@@INSTLIBDIR@@")|' \
            -e 's|@@INSTLIBDIR@@|'"$$INSTLIBDIR"'|g' \
            $@.py >$@+ && \
        chmod +x $@+ && \

diff --git a/git-remote-testgit.py b/git-remote-testgit.py
index f61624e4822d3fcdd5ea8c8988f3b8852b62e838..92539222c57d1966f847a641c976754f1941dc2b 100644 (file)
--- a/git-remote-testgit.py
+++ b/git-remote-testgit.py
@@ -2,6 +2,8 @@
 
 import hashlib
 import sys
+import os
+sys.path.insert(0, os.getenv("GITPYTHONLIB","."))
 
 from git_remote_helpers.util import die, debug, warn
 from git_remote_helpers.git.repo import GitRepo