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    你的位置：在路上 > 工作和技术 > OS_Platform > Linux > makefile > 【记录】cygwin中给docbook的webhelp中的classpath的值加上环境变量中已有的java的CLASSPATH

    【记录】cygwin中给docbook的webhelp中的classpath的值加上环境变量中已有的java的CLASSPATH

    makefile crifan 2342浏览 0评论

    【背景】

    之前在：

    【已解决】docbook中去make webhelp编译webhelp结果出错：Error: Could not find or load main class com.nexwave.nquindexer.IndexerMain

    已经写成了：

    #classpath := $(INDEXER_JAR):$(TAGSOUP_JAR):$(LUCENE_ANALYZER_JAR):$(LUCENE_CORE_JAR)
#【已解决】docbook中去make webhelp编译webhelp结果出错：Error: Could not find or load main class com.nexwave.nquindexer.IndexerMain
#https://www.crifan.com/docbook_make_webhelp_error__could_not_find_or_load_main_class_com_nexwave_nquindexer_indexermain/
OS_NAME = $(shell uname -o)
LC_OS_NAME = $(shell echo $(OS_NAME) | tr '[A-Z]' '[a-z]')
ifeq ($(LC_OS_NAME), cygwin)
classpath := "$(INDEXER_JAR);$(TAGSOUP_JAR);$(LUCENE_ANALYZER_JAR);$(LUCENE_CORE_JAR)"
else
classpath := $(INDEXER_JAR):$(TAGSOUP_JAR):$(LUCENE_ANALYZER_JAR):$(LUCENE_CORE_JAR)
endif

    然后此处，继续去：

    对于classpath的路径，

    至少是对于当前的cygwin，是windows的平台，

    还是想要先从环境变量中获得原先的java的CLASSPATH的值

    再去加上当前的要设置的classpath路径，

    并且最后加上引号，

    这样就实现了，在不影响路径的前提下，解决了cygwin中路径带空格等问题，

    保证所用到的classpath的值，

    是当前已经设置好的java的CLASSPATH，加上当前针对docbook的webhelp的classpath的值。

    【折腾过程】

    1.这就涉及到，makefile中，先要获得，环境变量中，已有的CLASSPATH的值是如何。

    2.关于这部分，涉及到makefile中的，给变量赋值，的几种方式

    • :=
    • ?=
    • +=
    • =

    需要去参考之前：

    【整理】makefile的参考资料：在线手册

    总结的makefile的在线文档：

    6.5 Setting Variables

    3.学习到的是：

    • =赋值：(recursively expanded)递归扩展变量
    • :=赋值：(simply expanded)简单扩展变量

    但是看了：

    6.2 The Two Flavors of Variables

    的解释，还是很晕，很复杂。。

    4.还是只是去看看：

    6.9 Variables from the Environment

    然后去试试：

    CLASSPATH_FROM_ENV = $(CLASSPATH)

test_classpath:
	@echo $(CLASSPATH_FROM_ENV)

    结果是：

    无法执行：

    CLi@PC-CLI-1 ~/develop/docbook/books/crifanlib_python/src
$ make test_classpath
.
/bin/sh: C:Program: command not found
/bin/sh: D:DevToolDD_ParserParserANTLRantlrantlr-4.0-complete.jar: command not found
make: *** [test_classpath] Error 127

    5.再去试试：

    #CLASSPATH_FROM_ENV = $(CLASSPATH)
CLASSPATH_FROM_ENV := $(CLASSPATH)

test_classpath:
	@echo $(CLASSPATH_FROM_ENV)

    结果：

    CLi@PC-CLI-1 ~/develop/docbook/books/crifanlib_python/src
$ make test_classpath
.
/bin/sh: C:Program: command not found
/bin/sh: D:DevToolDD_ParserParserANTLRantlrantlr-4.0-complete.jar: command not found
make: *** [test_classpath] Error 127

    6.再去试试：

    CLi@PC-CLI-1 ~/develop/docbook/books/crifanlib_python/src
$ echo $CLASSPATH
.;C:\Program Files\Java\jdk1.7.0_11\jre\lib\rt.jar;D:\DevTool\DD_Parser\Parser\ANTLR\antlr\antlr-4.0-complete.jar;

    以及：

    #CLASSPATH_FROM_ENV = $(CLASSPATH)
#CLASSPATH_FROM_ENV := $(CLASSPATH)
CLASSPATH_FROM_ENV ?= $(CLASSPATH)

test_classpath:
	@echo "$(CLASSPATH_FROM_ENV)"

    结果是：

    CLi@PC-CLI-1 ~/develop/docbook/books/crifanlib_python/src
$ make test_classpath
.;C:\Program Files\Java\jdk1.7.0_11\jre\lib\rt.jar;D:\DevTool\DD_Parser\Parser\ANTLR\antlr\antlr-4.0-complete.jar;

    7.再回去试试：

    #CLASSPATH_FROM_ENV = $(CLASSPATH)
CLASSPATH_FROM_ENV := $(CLASSPATH)
#CLASSPATH_FROM_ENV ?= $(CLASSPATH)

test_classpath:
	@echo "$(CLASSPATH_FROM_ENV)"

    结果是：

    CLi@PC-CLI-1 ~/develop/docbook/books/crifanlib_python/src
$ make test_classpath
.;C:\Program Files\Java\jdk1.7.0_11\jre\lib\rt.jar;D:\DevTool\DD_Parser\Parser\ANTLR\antlr\antlr-4.0-complete.jar;

    8.试试：

    CLASSPATH_FROM_ENV = $(CLASSPATH)
#CLASSPATH_FROM_ENV := $(CLASSPATH)
#CLASSPATH_FROM_ENV ?= $(CLASSPATH)

test_classpath:
	@echo "$(CLASSPATH_FROM_ENV)"

    结果是：

    CLi@PC-CLI-1 ~/develop/docbook/books/crifanlib_python/src
$ make test_classpath
.;C:\Program Files\Java\jdk1.7.0_11\jre\lib\rt.jar;D:\DevTool\DD_Parser\Parser\ANTLR\antlr\antlr-4.0-complete.jar;

    9.然后可以继续去加上后面的值了。

    最后是，用：

    # =================================================
# You probably don't need to change anything below
# unless you choose to add a validation step.
# ================================================
INDEXER_JAR         := $(TOOLS_XSL_NS_EXTENSIONS)/webhelpindexer.jar
TAGSOUP_JAR         := $(TOOLS_XSL_NS_EXTENSIONS)/tagsoup-1.2.1.jar
LUCENE_ANALYZER_JAR := $(TOOLS_XSL_NS_EXTENSIONS)/lucene-analyzers-3.0.0.jar
LUCENE_CORE_JAR     := $(TOOLS_XSL_NS_EXTENSIONS)/lucene-core-3.0.0.jar

#manually set value for test in linux
OS_NAME_LOWCASE=linux
CLASSPATH=.:/usr/bin/java

CLASSPATH_FROM_ENV = $(CLASSPATH)
#CLASSPATH_FROM_ENV := $(CLASSPATH)
#CLASSPATH_FROM_ENV ?= $(CLASSPATH)

#WEBHELP_CLASSPATH := $(INDEXER_JAR):$(TAGSOUP_JAR):$(LUCENE_ANALYZER_JAR):$(LUCENE_CORE_JAR)
#under Windows(Cygwin), (java classpath)
#(1)path seperator is semicolon ';' (not Linux's colon ':')
#(2) command contain semicolon means multile command, so need quote
# so become -> "path1;path2;path3"
#detail can refer:
#【已解决】docbook中去make webhelp编译webhelp结果出错：Error: Could not find or load main class com.nexwave.nquindexer.IndexerMain
#https://www.crifan.com/docbook_make_webhelp_error__could_not_find_or_load_main_class_com_nexwave_nquindexer_indexermain/
ifeq ($(OS_NAME_LOWCASE), cygwin)
PATH_DELIMITER = ;
else
PATH_DELIMITER = :
endif

#WEBHELP_CLASSPATH := "$(INDEXER_JAR);$(TAGSOUP_JAR);$(LUCENE_ANALYZER_JAR);$(LUCENE_CORE_JAR)"
#WEBHELP_CLASSPATH := $(INDEXER_JAR):$(TAGSOUP_JAR):$(LUCENE_ANALYZER_JAR):$(LUCENE_CORE_JAR)
#WEBHELP_CLASSPATH := "$(CLASSPATH_FROM_ENV)$(PATH_DELIMITER)$(INDEXER_JAR)$(PATH_DELIMITER)$(TAGSOUP_JAR)$(PATH_DELIMITER)$(LUCENE_ANALYZER_JAR)$(PATH_DELIMITER)$(LUCENE_CORE_JAR)"
#WEBHELP_CLASSPATH = "$(INDEXER_JAR)$(PATH_DELIMITER)$(TAGSOUP_JAR)$(PATH_DELIMITER)$(LUCENE_ANALYZER_JAR)$(PATH_DELIMITER)$(LUCENE_CORE_JAR)$(PATH_DELIMITER)$(CLASSPATH_FROM_ENV)"
WEBHELP_CLASSPATH := "$(INDEXER_JAR)$(PATH_DELIMITER)$(TAGSOUP_JAR)$(PATH_DELIMITER)$(LUCENE_ANALYZER_JAR)$(PATH_DELIMITER)$(LUCENE_CORE_JAR)$(PATH_DELIMITER)$(CLASSPATH_FROM_ENV)"

test_classpath:
	@echo "CLASSPATH_FROM_ENV=$(CLASSPATH_FROM_ENV)"
	@echo "OS_NAME_LOWCASE=$(OS_NAME_LOWCASE)"
	@echo "PATH_DELIMITER=$(PATH_DELIMITER)"
	@echo $(WEBHELP_CLASSPATH)

    可以得到要的输出：

    CLi@PC-CLI-1 ~/develop/docbook/books/crifanlib_python/src
$ make test_classpath
CLASSPATH_FROM_ENV=.:/usr/bin/java
OS_NAME_LOWCASE=linux
PATH_DELIMITER=:
D:/tmp/tmp_dev_root/cgwin/home/CLi/develop/docbook/tools/docbook-xsl-ns-1.78.1/extensions/webhelpindexer.jar:D:/tmp/tmp_dev_root/cgwin/home/CLi/develop/docbook/tools/docbook-xsl-ns-1.78.1/extensions/tagsoup-1.2.1.jar:D:/tmp/tmp_dev_root/cgwin/home/CLi/develop/docbook/tools/docbook-xsl-ns-1.78.1/extensions/lucene-analyzers-3.0.0.jar:D:/tmp/tmp_dev_root/cgwin/home/CLi/develop/docbook/tools/docbook-xsl-ns-1.78.1/extensions/lucene-core-3.0.0.jar:.:/usr/bin/java

    不加针对linux的测试的赋值，回到正常的此处的cygwin时：

    # =================================================
# You probably don't need to change anything below
# unless you choose to add a validation step.
# ================================================
INDEXER_JAR         := $(TOOLS_XSL_NS_EXTENSIONS)/webhelpindexer.jar
TAGSOUP_JAR         := $(TOOLS_XSL_NS_EXTENSIONS)/tagsoup-1.2.1.jar
LUCENE_ANALYZER_JAR := $(TOOLS_XSL_NS_EXTENSIONS)/lucene-analyzers-3.0.0.jar
LUCENE_CORE_JAR     := $(TOOLS_XSL_NS_EXTENSIONS)/lucene-core-3.0.0.jar

#manually set value for test in linux
#OS_NAME_LOWCASE=linux
#CLASSPATH=.:/usr/bin/java

CLASSPATH_FROM_ENV = $(CLASSPATH)
#CLASSPATH_FROM_ENV := $(CLASSPATH)
#CLASSPATH_FROM_ENV ?= $(CLASSPATH)

#WEBHELP_CLASSPATH := $(INDEXER_JAR):$(TAGSOUP_JAR):$(LUCENE_ANALYZER_JAR):$(LUCENE_CORE_JAR)
#under Windows(Cygwin), (java classpath)
#(1)path seperator is semicolon ';' (not Linux's colon ':')
#(2) command contain semicolon means multile command, so need quote
# so become -> "path1;path2;path3"
#detail can refer:
#【已解决】docbook中去make webhelp编译webhelp结果出错：Error: Could not find or load main class com.nexwave.nquindexer.IndexerMain
#https://www.crifan.com/docbook_make_webhelp_error__could_not_find_or_load_main_class_com_nexwave_nquindexer_indexermain/
ifeq ($(OS_NAME_LOWCASE), cygwin)
PATH_DELIMITER = ;
else
PATH_DELIMITER = :
endif

#WEBHELP_CLASSPATH := "$(INDEXER_JAR);$(TAGSOUP_JAR);$(LUCENE_ANALYZER_JAR);$(LUCENE_CORE_JAR)"
#WEBHELP_CLASSPATH := $(INDEXER_JAR):$(TAGSOUP_JAR):$(LUCENE_ANALYZER_JAR):$(LUCENE_CORE_JAR)
#WEBHELP_CLASSPATH := "$(CLASSPATH_FROM_ENV)$(PATH_DELIMITER)$(INDEXER_JAR)$(PATH_DELIMITER)$(TAGSOUP_JAR)$(PATH_DELIMITER)$(LUCENE_ANALYZER_JAR)$(PATH_DELIMITER)$(LUCENE_CORE_JAR)"
#WEBHELP_CLASSPATH = "$(INDEXER_JAR)$(PATH_DELIMITER)$(TAGSOUP_JAR)$(PATH_DELIMITER)$(LUCENE_ANALYZER_JAR)$(PATH_DELIMITER)$(LUCENE_CORE_JAR)$(PATH_DELIMITER)$(CLASSPATH_FROM_ENV)"
WEBHELP_CLASSPATH := "$(INDEXER_JAR)$(PATH_DELIMITER)$(TAGSOUP_JAR)$(PATH_DELIMITER)$(LUCENE_ANALYZER_JAR)$(PATH_DELIMITER)$(LUCENE_CORE_JAR)$(PATH_DELIMITER)$(CLASSPATH_FROM_ENV)"

test_classpath:
	@echo "CLASSPATH_FROM_ENV=$(CLASSPATH_FROM_ENV)"
	@echo "OS_NAME_LOWCASE=$(OS_NAME_LOWCASE)"
	@echo "PATH_DELIMITER=$(PATH_DELIMITER)"
	@echo $(WEBHELP_CLASSPATH)

    结果是：

    CLi@PC-CLI-1 ~/develop/docbook/books/crifanlib_python/src
$ make test_classpath
CLASSPATH_FROM_ENV=.;C:\Program Files\Java\jdk1.7.0_11\jre\lib\rt.jar;D:\DevTool\DD_Parser\Parser\ANTLR\antlr\antlr-4.0-complete.jar;
OS_NAME_LOWCASE=cygwin
PATH_DELIMITER=;
D:/tmp/tmp_dev_root/cgwin/home/CLi/develop/docbook/tools/docbook-xsl-ns-1.78.1/extensions/webhelpindexer.jar;D:/tmp/tmp_dev_root/cgwin/home/CLi/develop/docbook/tools/docbook-xsl-ns-1.78.1/extensions/tagsoup-1.2.1.jar;D:/tmp/tmp_dev_root/cgwin/home/CLi/develop/docbook/tools/docbook-xsl-ns-1.78.1/extensions/lucene-analyzers-3.0.0.jar;D:/tmp/tmp_dev_root/cgwin/home/CLi/develop/docbook/tools/docbook-xsl-ns-1.78.1/extensions/lucene-core-3.0.0.jar;.;C:\Program Files\Java\jdk1.7.0_11\jre\lib\rt.jar;D:\DevTool\DD_Parser\Parser\ANTLR\antlr\antlr-4.0-complete.jar;

     

    【总结】

    1.此处，从cygwin中，makefile中，从环境变量中获得对应的，windows的Java的CLASSPATH 的值，直接使用：

    CLASSPATH_FROM_ENV = $(CLASSPATH)

    即可。

    写成：

    CLASSPATH_FROM_ENV := $(CLASSPATH)

    或：

    CLASSPATH_FROM_ENV ?= $(CLASSPATH)

    都可以。

    2.然后此处，要先获得Java的CLASSPATH

    然后判断当前os类型是cygwin还是linux，

    决定路径的分隔符是分号还是冒号

    然后再加上当前docbook的webhelp的classpath的路径

    最终是使用：

    # =================================================
# You probably don't need to change anything below
# unless you choose to add a validation step.
# ================================================
INDEXER_JAR         := $(TOOLS_XSL_NS_EXTENSIONS)/webhelpindexer.jar
TAGSOUP_JAR         := $(TOOLS_XSL_NS_EXTENSIONS)/tagsoup-1.2.1.jar
LUCENE_ANALYZER_JAR := $(TOOLS_XSL_NS_EXTENSIONS)/lucene-analyzers-3.0.0.jar
LUCENE_CORE_JAR     := $(TOOLS_XSL_NS_EXTENSIONS)/lucene-core-3.0.0.jar

#manually set value for test in linux
#OS_NAME_LOWCASE=linux
#CLASSPATH=.:/usr/bin/java

CLASSPATH_FROM_ENV = $(CLASSPATH)
#CLASSPATH_FROM_ENV := $(CLASSPATH)
#CLASSPATH_FROM_ENV ?= $(CLASSPATH)

#WEBHELP_CLASSPATH := $(INDEXER_JAR):$(TAGSOUP_JAR):$(LUCENE_ANALYZER_JAR):$(LUCENE_CORE_JAR)
#under Windows(Cygwin), (java classpath)
#(1)path seperator is semicolon ';' (not Linux's colon ':')
#(2) command contain semicolon means multile command, so need quote
# so become -> "path1;path2;path3"
#detail can refer:
#【已解决】docbook中去make webhelp编译webhelp结果出错：Error: Could not find or load main class com.nexwave.nquindexer.IndexerMain
#https://www.crifan.com/docbook_make_webhelp_error__could_not_find_or_load_main_class_com_nexwave_nquindexer_indexermain/
ifeq ($(OS_NAME_LOWCASE), cygwin)
PATH_DELIMITER = ;
else
PATH_DELIMITER = :
endif

#WEBHELP_CLASSPATH := "$(INDEXER_JAR);$(TAGSOUP_JAR);$(LUCENE_ANALYZER_JAR);$(LUCENE_CORE_JAR)"
#WEBHELP_CLASSPATH := $(INDEXER_JAR):$(TAGSOUP_JAR):$(LUCENE_ANALYZER_JAR):$(LUCENE_CORE_JAR)
#WEBHELP_CLASSPATH := "$(CLASSPATH_FROM_ENV)$(PATH_DELIMITER)$(INDEXER_JAR)$(PATH_DELIMITER)$(TAGSOUP_JAR)$(PATH_DELIMITER)$(LUCENE_ANALYZER_JAR)$(PATH_DELIMITER)$(LUCENE_CORE_JAR)"
#WEBHELP_CLASSPATH = "$(INDEXER_JAR)$(PATH_DELIMITER)$(TAGSOUP_JAR)$(PATH_DELIMITER)$(LUCENE_ANALYZER_JAR)$(PATH_DELIMITER)$(LUCENE_CORE_JAR)$(PATH_DELIMITER)$(CLASSPATH_FROM_ENV)"
WEBHELP_CLASSPATH := "$(INDEXER_JAR)$(PATH_DELIMITER)$(TAGSOUP_JAR)$(PATH_DELIMITER)$(LUCENE_ANALYZER_JAR)$(PATH_DELIMITER)$(LUCENE_CORE_JAR)$(PATH_DELIMITER)$(CLASSPATH_FROM_ENV)"

test_classpath:
	@echo "CLASSPATH_FROM_ENV=$(CLASSPATH_FROM_ENV)"
	@echo "OS_NAME_LOWCASE=$(OS_NAME_LOWCASE)"
	@echo "PATH_DELIMITER=$(PATH_DELIMITER)"
	@echo $(WEBHELP_CLASSPATH)

    的配置，而使得后面的，docbook在makefile中去处理webhelp：

    webhelp_index:
	java \
        -DhtmlDir=$(OUTPUT_DIR_WEBHELP) \
        -DindexerLanguage=$(WEBHELP_INDEX_LANGUAGE) \
        -DhtmlExtension=html \
        -DdoStem=true \
        -DindexerExcludedFiles=$(INDEXER_EXCLUDED_FILES) \
        -Dorg.xml.sax.driver=org.ccil.cowan.tagsoup.Parser \
        -Djavax.xml.parsers.SAXParserFactory=org.ccil.cowan.tagsoup.jaxp.SAXFactoryImpl \
        -classpath $(WEBHELP_CLASSPATH) \
        com.nexwave.nquindexer.IndexerMain
	mkdir -p ${OUTPUT_DIR_WEBHELP}/search
	cp -r $(TOOLS_XSL_NS_WEBHELP)/template/search/* ${OUTPUT_DIR_WEBHELP}/search

    就是正常的了。

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