[docwriter] Drop support for Python < 3.5.

Python versions < 3.5 have reached end-of-life and as such, no
security or bug fixes will be provided for those versions.  See

  https://devguide.python.org/#status-of-python-branches

for more information.

* Jamfile (RefDoc): Add `site' parameter.

* builds/detect.mk (std_setup): Update Python version requirement.

* builds/freetype.mk (refdoc-venv): Use pip as `python -m pip'.

* builds/unix/ax_compare_version.m4,
builds/unix/ax_prog_python_version.m4: Macros to detect Python
version.  New files.

* builds/unix/configure.raw: Check for Python >= 3.5 and remove
check for `pip'.

* docs/CHANGES, docs/INSTALL.GNU, docs/README: Updated.
This commit is contained in:
Nikhil Ramakrishnan 2020-03-21 20:17:17 +05:30
parent 6a431038c9
commit 1fd3148713
10 changed files with 303 additions and 29 deletions

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@ -1,3 +1,29 @@
2020-03-21 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
[docwriter] Drop support for Python < 3.5.
Python versions < 3.5 have reached end-of-life and as such, no
security or bug fixes will be provided for those versions. See
https://devguide.python.org/#status-of-python-branches
for more information.
* Jamfile (RefDoc): Add `site' parameter.
* builds/detect.mk (std_setup): Update Python version requirement.
* builds/freetype.mk (refdoc-venv): Use pip as `python -m pip'.
* builds/unix/ax_compare_version.m4,
builds/unix/ax_prog_python_version.m4: Macros to detect Python
version. New files.
* builds/unix/configure.raw: Check for Python >= 3.5 and remove
check for `pip'.
* docs/CHANGES, docs/INSTALL.GNU, docs/README: Updated.
2020-03-02 Moazin Khatti <moazinkhatri@gmail.com>
[gzip] Support `gzip' encoded header conditionally.

15
Jamfile
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@ -208,13 +208,14 @@ rule RefDoc
actions RefDoc
{
python -m docwriter
--prefix=ft2
--title=FreeType-2.10.1
--output=$(DOC_DIR)
$(FT2_INCLUDE)/freetype/*.h
$(FT2_INCLUDE)/freetype/config/*.h
$(FT2_INCLUDE)/freetype/cache/*.h
python3 -m docwriter
--prefix=ft2
--title=FreeType-2.10.1
--site=reference
--output=$(DOC_DIR)
$(FT2_INCLUDE)/freetype/*.h
$(FT2_INCLUDE)/freetype/config/*.h
$(FT2_INCLUDE)/freetype/cache/*.h
}
RefDoc refdoc ;

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@ -120,7 +120,7 @@ std_setup:
$(info `$(CONFIG_MK)' from this directory then read the INSTALL file for help.)
$(info )
$(info Otherwise, simply type `$(MAKE)' again to build the library,)
$(info or `$(MAKE) refdoc' to build the API reference (this needs python >= 2.6).)
$(info or `$(MAKE) refdoc' to build the API reference (this needs Python >= 3.5).)
$(info )
@$(COPY) $(subst /,$(SEP),$(CONFIG_RULES) $(CONFIG_MK))

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@ -290,11 +290,8 @@ objects: $(OBJECTS_LIST)
library: $(PROJECT_LIBRARY)
# Run `docwriter' in the current Python environment.
# Option `-B' disables generation of .pyc files (available since python 2.6)
#
PYTHON ?= python
PIP ?= pip
refdoc:
@echo Running docwriter...
@ -319,13 +316,12 @@ refdoc:
VENV_NAME := env
VENV_DIR := $(DOC_DIR)$(SEP)$(VENV_NAME)
ENV_PYTHON := $(VENV_DIR)$(SEP)$(BIN)$(SEP)$(PYTHON)
ENV_PIP := $(VENV_DIR)$(SEP)$(BIN)$(SEP)$(PIP)
refdoc-venv:
@echo Setting up virtualenv for Python...
virtualenv --python=$(PYTHON) $(VENV_DIR)
@echo Installing docwriter...
$(ENV_PIP) install docwriter
$(ENV_PYTHON) -m pip install docwriter
@echo Running docwriter...
$(ENV_PYTHON) -m docwriter \
--prefix=ft2 \

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@ -0,0 +1,177 @@
# ===========================================================================
# https://www.gnu.org/software/autoconf-archive/ax_compare_version.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_COMPARE_VERSION(VERSION_A, OP, VERSION_B, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
#
# DESCRIPTION
#
# This macro compares two version strings. Due to the various number of
# minor-version numbers that can exist, and the fact that string
# comparisons are not compatible with numeric comparisons, this is not
# necessarily trivial to do in a autoconf script. This macro makes doing
# these comparisons easy.
#
# The six basic comparisons are available, as well as checking equality
# limited to a certain number of minor-version levels.
#
# The operator OP determines what type of comparison to do, and can be one
# of:
#
# eq - equal (test A == B)
# ne - not equal (test A != B)
# le - less than or equal (test A <= B)
# ge - greater than or equal (test A >= B)
# lt - less than (test A < B)
# gt - greater than (test A > B)
#
# Additionally, the eq and ne operator can have a number after it to limit
# the test to that number of minor versions.
#
# eq0 - equal up to the length of the shorter version
# ne0 - not equal up to the length of the shorter version
# eqN - equal up to N sub-version levels
# neN - not equal up to N sub-version levels
#
# When the condition is true, shell commands ACTION-IF-TRUE are run,
# otherwise shell commands ACTION-IF-FALSE are run. The environment
# variable 'ax_compare_version' is always set to either 'true' or 'false'
# as well.
#
# Examples:
#
# AX_COMPARE_VERSION([3.15.7],[lt],[3.15.8])
# AX_COMPARE_VERSION([3.15],[lt],[3.15.8])
#
# would both be true.
#
# AX_COMPARE_VERSION([3.15.7],[eq],[3.15.8])
# AX_COMPARE_VERSION([3.15],[gt],[3.15.8])
#
# would both be false.
#
# AX_COMPARE_VERSION([3.15.7],[eq2],[3.15.8])
#
# would be true because it is only comparing two minor versions.
#
# AX_COMPARE_VERSION([3.15.7],[eq0],[3.15])
#
# would be true because it is only comparing the lesser number of minor
# versions of the two values.
#
# Note: The characters that separate the version numbers do not matter. An
# empty string is the same as version 0. OP is evaluated by autoconf, not
# configure, so must be a string, not a variable.
#
# The author would like to acknowledge Guido Draheim whose advice about
# the m4_case and m4_ifvaln functions make this macro only include the
# portions necessary to perform the specific comparison specified by the
# OP argument in the final configure script.
#
# LICENSE
#
# Copyright (c) 2008 Tim Toolan <toolan@ele.uri.edu>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#serial 13
dnl #########################################################################
AC_DEFUN([AX_COMPARE_VERSION], [
AC_REQUIRE([AC_PROG_AWK])
# Used to indicate true or false condition
ax_compare_version=false
# Convert the two version strings to be compared into a format that
# allows a simple string comparison. The end result is that a version
# string of the form 1.12.5-r617 will be converted to the form
# 0001001200050617. In other words, each number is zero padded to four
# digits, and non digits are removed.
AS_VAR_PUSHDEF([A],[ax_compare_version_A])
A=`echo "$1" | sed -e 's/\([[0-9]]*\)/Z\1Z/g' \
-e 's/Z\([[0-9]]\)Z/Z0\1Z/g' \
-e 's/Z\([[0-9]][[0-9]]\)Z/Z0\1Z/g' \
-e 's/Z\([[0-9]][[0-9]][[0-9]]\)Z/Z0\1Z/g' \
-e 's/[[^0-9]]//g'`
AS_VAR_PUSHDEF([B],[ax_compare_version_B])
B=`echo "$3" | sed -e 's/\([[0-9]]*\)/Z\1Z/g' \
-e 's/Z\([[0-9]]\)Z/Z0\1Z/g' \
-e 's/Z\([[0-9]][[0-9]]\)Z/Z0\1Z/g' \
-e 's/Z\([[0-9]][[0-9]][[0-9]]\)Z/Z0\1Z/g' \
-e 's/[[^0-9]]//g'`
dnl # In the case of le, ge, lt, and gt, the strings are sorted as necessary
dnl # then the first line is used to determine if the condition is true.
dnl # The sed right after the echo is to remove any indented white space.
m4_case(m4_tolower($2),
[lt],[
ax_compare_version=`echo "x$A
x$B" | sed 's/^ *//' | sort -r | sed "s/x${A}/false/;s/x${B}/true/;1q"`
],
[gt],[
ax_compare_version=`echo "x$A
x$B" | sed 's/^ *//' | sort | sed "s/x${A}/false/;s/x${B}/true/;1q"`
],
[le],[
ax_compare_version=`echo "x$A
x$B" | sed 's/^ *//' | sort | sed "s/x${A}/true/;s/x${B}/false/;1q"`
],
[ge],[
ax_compare_version=`echo "x$A
x$B" | sed 's/^ *//' | sort -r | sed "s/x${A}/true/;s/x${B}/false/;1q"`
],[
dnl Split the operator from the subversion count if present.
m4_bmatch(m4_substr($2,2),
[0],[
# A count of zero means use the length of the shorter version.
# Determine the number of characters in A and B.
ax_compare_version_len_A=`echo "$A" | $AWK '{print(length)}'`
ax_compare_version_len_B=`echo "$B" | $AWK '{print(length)}'`
# Set A to no more than B's length and B to no more than A's length.
A=`echo "$A" | sed "s/\(.\{$ax_compare_version_len_B\}\).*/\1/"`
B=`echo "$B" | sed "s/\(.\{$ax_compare_version_len_A\}\).*/\1/"`
],
[[0-9]+],[
# A count greater than zero means use only that many subversions
A=`echo "$A" | sed "s/\(\([[0-9]]\{4\}\)\{m4_substr($2,2)\}\).*/\1/"`
B=`echo "$B" | sed "s/\(\([[0-9]]\{4\}\)\{m4_substr($2,2)\}\).*/\1/"`
],
[.+],[
AC_WARNING(
[invalid OP numeric parameter: $2])
],[])
# Pad zeros at end of numbers to make same length.
ax_compare_version_tmp_A="$A`echo $B | sed 's/./0/g'`"
B="$B`echo $A | sed 's/./0/g'`"
A="$ax_compare_version_tmp_A"
# Check for equality or inequality as necessary.
m4_case(m4_tolower(m4_substr($2,0,2)),
[eq],[
test "x$A" = "x$B" && ax_compare_version=true
],
[ne],[
test "x$A" != "x$B" && ax_compare_version=true
],[
AC_WARNING([invalid OP parameter: $2])
])
])
AS_VAR_POPDEF([A])dnl
AS_VAR_POPDEF([B])dnl
dnl # Execute ACTION-IF-TRUE / ACTION-IF-FALSE.
if test "$ax_compare_version" = "true" ; then
m4_ifvaln([$4],[$4],[:])dnl
m4_ifvaln([$5],[else $5])dnl
fi
]) dnl AX_COMPARE_VERSION

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@ -0,0 +1,66 @@
# ===========================================================================
# https://www.gnu.org/software/autoconf-archive/ax_prog_python_version.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_PROG_PYTHON_VERSION([VERSION],[ACTION-IF-TRUE],[ACTION-IF-FALSE])
#
# DESCRIPTION
#
# Makes sure that python supports the version indicated. If true the shell
# commands in ACTION-IF-TRUE are executed. If not the shell commands in
# ACTION-IF-FALSE are run. Note if $PYTHON is not set (for example by
# running AC_CHECK_PROG or AC_PATH_PROG) the macro will fail.
#
# Example:
#
# AC_PATH_PROG([PYTHON],[python])
# AX_PROG_PYTHON_VERSION([2.4.4],[ ... ],[ ... ])
#
# This will check to make sure that the python you have supports at least
# version 2.4.4.
#
# NOTE: This macro uses the $PYTHON variable to perform the check.
# AX_WITH_PYTHON can be used to set that variable prior to running this
# macro. The $PYTHON_VERSION variable will be valorized with the detected
# version.
#
# LICENSE
#
# Copyright (c) 2009 Francesco Salvestrini <salvestrini@users.sourceforge.net>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#serial 12
AC_DEFUN([AX_PROG_PYTHON_VERSION],[
AC_REQUIRE([AC_PROG_SED])
AC_REQUIRE([AC_PROG_GREP])
AS_IF([test -n "$PYTHON"],[
ax_python_version="$1"
AC_MSG_CHECKING([for python version])
changequote(<<,>>)
python_version=`$PYTHON -V 2>&1 | $GREP "^Python " | $SED -e 's/^.* \([0-9]*\.[0-9]*\.[0-9]*\)/\1/'`
changequote([,])
AC_MSG_RESULT($python_version)
AC_SUBST([PYTHON_VERSION],[$python_version])
AX_COMPARE_VERSION([$ax_python_version],[le],[$python_version],[
:
$2
],[
:
$3
])
],[
AC_MSG_WARN([could not find the python interpreter])
$3
])
])

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@ -1012,16 +1012,20 @@ case "$CFLAGS" in
;;
esac
# Check for python and docwriter
# Check for Python and docwriter
AC_CHECK_PROGS([PYTHON], [python3 python2 python], [missing])
have_py3=no
have_docwriter=no
if test "x$PYTHON" != "xmissing"; then
AC_CHECK_PROGS([PIP], [pip3 pip2 pip], [missing])
PIP=pip
if test "x$PIP" != "xmissing"; then
AC_CHECK_PROGS([PYTHON], [python3 python], [missing])
if test "x$PYTHON" != "xmissing"; then
AX_PROG_PYTHON_VERSION([3.5], [have_py3=yes], [])
if test "x$have_py3" = "xyes"; then
PIP="$PYTHON -m $PIP"
AC_MSG_CHECKING([for \`docwriter' Python module])
$PIP show -q docwriter
$PYTHON -m docwriter -h > /dev/null 2>&1
if test "x$?" = "x0"; then
have_docwriter=yes
AC_MSG_RESULT([yes])
@ -1191,9 +1195,9 @@ Library configuration:
if test $have_docwriter = no; then
AC_MSG_NOTICE([
Warning: \`make refdoc' will fail since pip package \`docwriter' is not
installed. To install, run \`$PIP install docwriter', or to use a python
installed. To install, run \`$PIP install docwriter', or to use a Python
virtual environment, run \`make refdoc-venv' (requires pip package
\`virtualenv').
\`virtualenv'). These operations require Python >= 3.5.
])
fi

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@ -12,6 +12,10 @@ CHANGES BETWEEN 2.10.1 and 2.10.2
- Function `FT_Get_Var_Axis_Flags' returned random data for Type 1
MM fonts.
- Drop support for Python 2 in Freetype's API reference generator
`docwriter' (Python >= 3.5 is required for targets `make refdoc'
and `make refdoc-venv').
======================================================================

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@ -63,7 +63,7 @@ instructions in the file `INSTALL.UNIX' instead.
Otherwise, simply type 'make' again to build the library
or 'make refdoc' to build the API reference (the latter needs
python).
Python >= 3.5).
=============================================================

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@ -1,6 +1,6 @@
After saying `make refdoc' or `make refdoc-venv' the `site/' directory
contains the FreeType API reference. You need python and pip to make this
target.
contains the FreeType API reference. You need Python >= 3.5 and pip to make
this target.
There are two ways to generate the documentation:
@ -13,7 +13,7 @@ There are two ways to generate the documentation:
2. Using `make refdoc-venv' (requires internet access):
- Ensure `python', `pip' and python package `virtualenv' are available.
- Ensure `python', `pip' and Python package `virtualenv' are available.
- Make target with `make refdoc-venv'.
- This may or may not require internet access every time depending on
pip and system caching.
@ -25,11 +25,11 @@ Some troubleshooting tips:
* Regularly run `pip install --upgrade docwriter' to check for updates which
may include bug fixes.
* Ensure that `docwriter' is installed in the same python target that
`make refdoc' uses (python3/python2/python).
* `Docwriter' does not support Python 2. Ensure that Python >= 3.5 is
installed and available as `python3'/`python'.
* `pip' and `python' may point to different versions of Python. Check using
`python --version' and `pip --version'.
* Ensure that `docwriter' is installed in the same Python target that
`make refdoc' uses (python3/python).
* If none of this works, send a mail to `freetype-devel@nongnu.org' or file
an issue at `https://github.com/freetype/docwriter/issues'.