| 1 | #!/bin/sh
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| 2 | # Copyright (C) 2008 Tim Post
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| 3 | # All Rights Reserved
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| 4 | #
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| 5 | # Redistribution and use in source and binary forms, with or without
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| 6 | # modification, are permitted provided that the following conditions are met:
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| 7 | #
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| 8 | # Redistributions of source code must retain the above copyright notice, this
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| 9 | # list of conditions and the following disclaimer.
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| 10 | #
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| 11 | # Redistributions in binary form must reproduce the above copyright notice,
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| 12 | # this list of conditions and the following disclaimer in the documentation
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| 13 | # and/or other materials provided with the distribution.
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| 14 | #
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| 15 | # Neither the name of the original program's authors nor the names of its
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| 16 | # contributors may be used to endorse or promote products derived from this
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| 17 | # software without specific prior written permission.
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| 18 | #
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| 19 | # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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| 20 | # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 21 | # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 22 | # ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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| 23 | # LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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| 24 | # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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| 25 | # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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| 26 | # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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| 27 | # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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| 28 | # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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| 29 | # POSSIBILITY OF SUCH DAMAGE.
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| 30 |
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| 31 | # Script to generate skeletal files for a new command
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| 32 | # Uses `getopt', not quite a bash-ism but might be
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| 33 | # lacking on some legacy systems.
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| 34 |
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| 35 | # If your shell does not support eval, shift (x) or
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| 36 | # here-now documents, sorry :)
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| 37 |
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| 38 | usage()
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| 39 | {
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| 40 | def="$DEFAULT_COMMAND"
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| 41 | cat << EOF
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| 42 | \`$PROGNAME' generates skeletal command files to simplify adding commands
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| 43 | Usage: $PROGNAME [options] <location>
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| 44 | Options:
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| 45 | -n, --name Name of the command (default: ${def})
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| 46 | -d, --desc Short (20 30 chars) description of the command
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| 47 | (def: "The $def command")
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| 48 | -e, --entry Entry function of the command (def: cmd_${def})
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| 49 | -h, --help-entry Entry function for command help (def: help_cmd_${def})
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| 50 | -a, --alias Alias (nickname) for this command (def: none)
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| 51 | -t, --type Type of command (module or builtin) (def: module)
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| 52 | -H, --help This help summary
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| 53 | -V, --version Print $PROGNAME version and exit normally
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| 54 |
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| 55 | Notes:
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| 56 | You must supply at least the name of the command.
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| 57 |
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| 58 | If you do not specify a location (i.e. modules/foo), the command will be
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| 59 | created in modules/command_name or builtins/command_name depending on your
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| 60 | selection.
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| 61 |
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| 62 | This script will only create skeletal files and inform you what headers
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| 63 | need to be modified to incorporate the command. You will also have to
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| 64 | manually update the main Makefile.
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| 65 |
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| 66 | This script is intended only to be a convenience for developers. Example use:
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| 67 | $PROGNAME -n foo -d "Foo power" -a bar -r both -t module modules/foo
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| 68 |
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| 69 | The example would generate a modular command named 'foo', which is also
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| 70 | reached by typing 'bar'.
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| 71 |
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| 72 | Skeletal files do *not* depend on the autoconf generated "config.h" unless you
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| 73 | include it. This may or may not be desirable depending on your use.
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| 74 |
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| 75 | Report bugs to $PROGMAINT
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| 76 |
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| 77 | EOF
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| 78 | }
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| 79 |
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| 80 | # Convert a string to all uppercase
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| 81 | toupper()
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| 82 | {
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| 83 | local str="$1"
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| 84 |
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| 85 | echo "${str}" | tr 'a-z' 'A-Z'
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| 86 | }
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| 87 |
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| 88 | # Template stored `here-now' style, this generates all files needed
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| 89 | # for a new command according to arguments passed.
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| 90 | generate_code()
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| 91 | {
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| 92 | echo "Creating ${OUTDIR}/${CMDNAME}_def.inc ..."
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| 93 | cat << EOF > ${OUTDIR}/${CMDNAME}_def.inc
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| 94 | {
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| 95 | "${CMDNAME}",
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| 96 | "${CMDDESC}",
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| 97 | &${CMDENTRY},
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| 98 | &${HELPENTRY},
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| 99 | },
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| 100 |
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| 101 | EOF
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| 102 | [ -n "${CMDALIAS}" ] && cat << EOF >> ${OUTDIR}/${CMDNAME}_def.inc
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| 103 | {
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| 104 | "${CMDALIAS}",
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| 105 | NULL,
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| 106 | &${CMDENTRY},
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| 107 | &${HELPENTRY},
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| 108 | },
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| 109 |
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| 110 | EOF
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| 111 | local defname=$(toupper "${CMDNAME}")
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| 112 | echo "Creating ${OUTDIR}/entry.h ..."
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| 113 | cat << EOF > ${OUTDIR}/entry.h
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| 114 | #ifndef ${defname}_ENTRY_H
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| 115 | #define ${defname}_ENTRY_H
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| 116 |
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| 117 | EOF
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| 118 | [ "${CMDTYPE}" = "module" ] && cat << EOF >> ${OUTDIR}/entry.h
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| 119 | /* Entry points for the ${CMDNAME} command */
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| 120 | extern int ${CMDENTRY}(char **);
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| 121 | extern void ${HELPENTRY}(unsigned int);
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| 122 |
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| 123 | #endif /* ${defname}_ENTRY_H */
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| 124 |
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| 125 | EOF
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| 126 | [ "${CMDTYPE}" = "builtin" ] && cat << EOF >> ${OUTDIR}/entry.h
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| 127 | /* Pick up cliuser_t */
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| 128 | #include "scli.h"
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| 129 |
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| 130 | /* Entry points for the ${CMDNAME} command */
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| 131 | extern int * ${CMDENTRY}(char **, cliuser_t *);
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| 132 | extern void * ${HELPENTRY}(unsigned int);
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| 133 |
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| 134 | #endif /* ${defname}_ENTRY_H */
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| 135 |
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| 136 | EOF
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| 137 | echo "Creating ${OUTDIR}/${CMDNAME}.h ..."
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| 138 | cat << EOF > ${OUTDIR}/${CMDNAME}.h
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| 139 | #ifndef ${defname}_H
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| 140 | #define ${defname}_H
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| 141 |
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| 142 | /* Prototypes for the ${CMDNAME} command, excluding entry points */
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| 143 |
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| 144 |
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| 145 | #endif /* ${defname}_H */
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| 146 |
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| 147 | EOF
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| 148 | echo "Creating ${OUTDIR}/${CMDNAME}.c ..."
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| 149 | cat << EOF > ${OUTDIR}/${CMDNAME}.c
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| 150 | /* Automatically generated by ${PROGNAME} on ${TIMESTAMP}
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| 151 | * This is machine generated output. The author of ${PROGNAME} claims no
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| 152 | * copyright over the contents of this file. Where legally permitted, the
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| 153 | * contents herein are donated to the public domain.
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| 154 | *
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| 155 | * You should apply any license and copyright that you wish to this file,
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| 156 | * replacing this header in its entirety. */
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| 157 |
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| 158 | #include <stdio.h>
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| 159 | #include <stdlib.h>
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| 160 | #include "config.h"
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| 161 | #include "util.h"
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| 162 | #include "errors.h"
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| 163 | #include "entry.h"
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| 164 | #include "${CMDNAME}.h"
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| 165 | #include "cmds.h"
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| 166 |
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| 167 | static const char *cmdname = "${CMDNAME}";
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| 168 |
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| 169 | /* Dispays help for ${CMDNAME} in various levels */
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| 170 | void ${HELPENTRY}(unsigned int level)
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| 171 | {
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| 172 | printf("This is the %s help for '%s'.\n",
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| 173 | level ? EXT_HELP : SHORT_HELP, cmdname);
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| 174 | return;
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| 175 | }
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| 176 |
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| 177 | EOF
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| 178 | [ "${CMDTYPE}" = "module" ] && cat << EOF >> ${OUTDIR}/${CMDNAME}.c
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| 179 | /* Main entry point for ${CMDNAME}, accepts an array of arguments */
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| 180 | int ${CMDENTRY}(char **argv)
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| 181 | EOF
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| 182 | [ "${CMDTYPE}" = "builtin" ] && cat << EOF >> ${OUTDIR}/${CMDNAME}.c
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| 183 | /* Main entry point for ${CMDNAME}, accepts an array of arguments and a
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| 184 | * pointer to the cliuser_t structure */
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| 185 | int ${CMDENTRY}(char **argv, cliuser_t *usr)
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| 186 | EOF
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| 187 | cat << EOF >> ${OUTDIR}/${CMDNAME}.c
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| 188 | {
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| 189 | unsigned int argc;
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| 190 | unsigned int i;
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| 191 |
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| 192 | /* Count the arguments */
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| 193 | for (argc = 0; argv[argc] != NULL; argc ++);
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| 194 |
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| 195 | printf("%s %s\n", TEST_ANNOUNCE, cmdname);
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| 196 | printf("%d arguments passed to %s", argc - 1, cmdname);
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| 197 |
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| 198 | if (argc < 2) {
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| 199 | printf("\n");
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| 200 | return CMD_SUCCESS;
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| 201 | }
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| 202 |
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| 203 | printf(":\n");
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| 204 | for (i = 1; i < argc; i++)
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| 205 | printf("[%d] -> %s\n", i, argv[i]);
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| 206 |
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| 207 | return CMD_SUCCESS;
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| 208 | }
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| 209 |
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| 210 | EOF
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| 211 | printf "Done.\n\nYou should now modify %ss/%ss.h and ../Makefile" \
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| 212 | "${CMDTYPE}" "${CMDTYPE}"
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| 213 | printf " to include your new command.\n"
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| 214 | [ -n "$CMDALIAS" ] && {
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| 215 | printf "\nYou should also modify %ss/%s_aliases.c and " \
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| 216 | "${CMDTYPE}" "${CMDTYPE}"
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| 217 | printf "add %s as an alias for %s\n" \
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| 218 | "${CMDALIAS}" "${CMDNAME}"
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| 219 | }
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| 220 | printf "\nOnce completed, re-run make\n\n"
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| 221 | }
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| 222 |
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| 223 | # Main program
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| 224 |
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| 225 | TIMESTAMP="$(date)"
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| 226 | PROGNAME=$(basename $0)
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| 227 | PROGVER="0.0.1"
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| 228 | PROGMAINT="Tim Post <echo@echoreply.us>"
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| 229 | DEFAULT_COMMAND="cmdname"
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| 230 |
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| 231 | # We need at least one
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| 232 | [ $# = 0 ] && usage && exit 1;
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| 233 |
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| 234 | TEMP=$(getopt -o n:d:e:h:a:t:HV \
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| 235 | --long name:,desc:,entry:,help-entry:,alias:,type:,help,version \
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| 236 | -- "$@") || {
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| 237 | echo "Try $PROGNAME --help for help"
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| 238 | }
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| 239 |
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| 240 | eval set -- "$TEMP"
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| 241 |
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| 242 | while true; do
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| 243 | case "$1" in
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| 244 | -n | --name)
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| 245 | CMDNAME="$2"
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| 246 | shift 2
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| 247 | continue
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| 248 | ;;
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| 249 | -d | --desc)
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| 250 | CMDDESC="$2"
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| 251 | shift 2
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| 252 | continue
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| 253 | ;;
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| 254 | -e | --entry)
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| 255 | CMDENTRY="$2"
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| 256 | shift 2
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| 257 | continue
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| 258 | ;;
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| 259 | -h | --help-entry)
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| 260 | HELPENTRY="$2"
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| 261 | shift 2
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| 262 | continue
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| 263 | ;;
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| 264 | -a | --alias)
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| 265 | CMDALIAS="$2"
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| 266 | shift 2
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| 267 | continue
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| 268 | ;;
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| 269 | -t | --type)
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| 270 | CMDTYPE="$2"
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| 271 | shift 2
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| 272 | continue
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| 273 | ;;
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| 274 | -H | --help)
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| 275 | usage
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| 276 | exit 0
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| 277 | ;;
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| 278 | -V | --version)
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| 279 | echo "$PROGVER"
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| 280 | exit 0
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| 281 | ;;
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| 282 | --)
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| 283 | break
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| 284 | ;;
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| 285 | esac
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| 286 | done
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| 287 |
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| 288 | # Pick up a location if one was specified
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| 289 | eval set -- "$*"
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| 290 | [ -n "$2" ] && OUTDIR="$2"
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| 291 |
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| 292 | # Fill in defaults for whatever was not specified
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| 293 | [ -n "$CMDNAME" ] || CMDNAME="$DEFAULT_COMMAND"
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| 294 | [ -n "$CMDDESC" ] || CMDDESC="The $CMDNAME command"
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| 295 | [ -n "$CMDENTRY" ] || CMDENTRY="cmd_${CMDNAME}"
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| 296 | [ -n "$HELPENTRY" ] || HELPENTRY="help_cmd_${CMDNAME}"
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| 297 | [ -n "$CMDTYPE" ] || CMDTYPE="module"
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| 298 | [ -n "$OUTDIR" ] || OUTDIR="${CMDTYPE}s/${CMDNAME}"
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| 299 |
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| 300 |
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| 301 | # Do a little sanity
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| 302 | [ -d $OUTDIR ] && {
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| 303 | echo "$OUTDIR already exists, remove it to proceed."
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| 304 | exit 1
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| 305 | }
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| 306 |
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| 307 | mkdir -p ${OUTDIR} >/dev/null 2>&1 || {
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| 308 | echo "Could not create ${OUTDIR}, aborting!"
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| 309 | exit 1
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| 310 | }
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| 311 |
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| 312 | # Generate the files and inform on how to include them based on options
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| 313 | generate_code
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| 314 |
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| 315 | exit 0
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| 316 |
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