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Commit7e20c35

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committed
Add ecpg --help and --version. Renumber the exit status codes, which were
documented wrong.
1 parent9cf701f commit7e20c35

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3 files changed

+67
-25
lines changed

3 files changed

+67
-25
lines changed

‎doc/src/sgml/ref/ecpg-ref.sgml

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,5 @@
11
<!--
2-
$Header: /cvsroot/pgsql/doc/src/sgml/ref/ecpg-ref.sgml,v 1.8 2001/07/11 03:43:52 momjian Exp $
2+
$Header: /cvsroot/pgsql/doc/src/sgml/ref/ecpg-ref.sgml,v 1.9 2001/08/24 22:37:36 petere Exp $
33
Postgres documentation
44
-->
55

@@ -116,7 +116,7 @@ ecpg [ -v ] [ -t ] [ -I include-path ] [ -o outfile ] file1 [ file2 ] [ ... ]
116116
<term><replaceable>return value</replaceable></term>
117117
<listitem>
118118
<para>
119-
<application>ecpg</application> returns 0 to the shell on successful completion,-1
119+
<application>ecpg</application> returns 0 to the shell on successful completion,non-zero
120120
for errors.
121121
</para>
122122
</listitem>

‎src/interfaces/ecpg/preproc/ecpg.c

Lines changed: 60 additions & 16 deletions
Original file line numberDiff line numberDiff line change
@@ -1,6 +1,8 @@
1+
/* $Header: /cvsroot/pgsql/src/interfaces/ecpg/preproc/ecpg.c,v 1.47 2001/08/24 22:37:36 petere Exp $ */
2+
13
/* New main for ecpg, the PostgreSQL embedded SQL precompiler. */
24
/* (C) Michael Meskes <meskes@postgresql.org> Feb 5th, 1998 */
3-
/* Placed under the samecopyright as PostgresSQL */
5+
/* Placed under the samelicense as PostgresSQL */
46

57
#include"postgres_fe.h"
68

@@ -10,24 +12,42 @@
1012
#include"getopt.h"
1113
#endif
1214

15+
externintoptind;
16+
externchar*optarg;
17+
1318
#include"extern.h"
1419

15-
intret_value=OK,
20+
intret_value=0,
1621
autocommit=0;
1722
struct_include_path*include_paths=NULL;
1823
structcursor*cur=NULL;
1924
structtypedefs*types=NULL;
2025
struct_defines*defines=NULL;
2126

2227
staticvoid
23-
usage(char*progname)
28+
help(constchar*progname)
2429
{
25-
fprintf(stderr,"ecpg - the postgresql preprocessor, version: %d.%d.%d\n",MAJOR_VERSION,MINOR_VERSION,PATCHLEVEL);
26-
fprintf(stderr,"Usage: %s: "
30+
printf("%s is the PostgreSQL embedded SQL preprocessor for C programs.\n\n",
31+
progname);
32+
printf("Usage:\n"
33+
" %s %s[-I DIRECTORY] [-o OUTFILE] [-t] file1 [file2...]\n\n",
34+
progname,
35+
#ifdefYYDEBUG
36+
"[-d] "
37+
#else
38+
""
39+
#endif
40+
);
41+
printf("Options:\n");
2742
#ifdefYYDEBUG
28-
"[-d]"
43+
printf(" -d generate parser debug output\n");
2944
#endif
30-
" [-v] [-t] [-I include path] [ -o output file name] [-D define name] file1 [file2] ...\n",progname);
45+
printf(" -I DIRECTORY search DIRECTORY for include files\n");
46+
printf(" -o OUTFILE write result to OUTFILE\n");
47+
printf(" -t turn on autocommit of transactions\n");
48+
printf("\nIf no output file is specified, the name is formed by adding .c\n"
49+
"to the input file name, after stripping off .pgc if present.\n");
50+
printf("\nReport bugs to <pgsql-bugs@postgresql.org>.\n");
3151
}
3252

3353
staticvoid
@@ -60,9 +80,27 @@ main(int argc, char *const argv[])
6080
verbose= false,
6181
out_option=0;
6282
struct_include_path*ip;
83+
char*progname;
6384

64-
externintoptind;
65-
externchar*optarg;
85+
if (!strrchr(argv[0],'/'))
86+
progname=argv[0];
87+
else
88+
progname=strrchr(argv[0],'/')+1;
89+
90+
if (argc>1)
91+
{
92+
if (strcmp(argv[1],"--help")==0||strcmp(argv[1],"-?")==0)
93+
{
94+
help(progname);
95+
exit(0);
96+
}
97+
elseif (strcmp(argv[1],"--version")==0)
98+
{
99+
printf("ecpg (PostgreSQL %s) %d.%d.%d\n",PG_VERSION,
100+
MAJOR_VERSION,MINOR_VERSION,PATCHLEVEL);
101+
exit(0);
102+
}
103+
}
66104

67105
add_include_path("/usr/include");
68106
add_include_path(INCLUDE_PATH);
@@ -90,32 +128,38 @@ main(int argc, char *const argv[])
90128
verbose= true;
91129
break;
92130
case'D':
131+
/* XXX not documented */
93132
add_preprocessor_define(optarg);
94133
break;
95-
#ifdefYYDEBUG
96134
case'd':
135+
#ifdefYYDEBUG
97136
yydebug=1;
98-
break;
137+
#else
138+
fprintf(stderr,"%s: parser debug support (-d) not available\n",
139+
progname);
99140
#endif
141+
break;
100142
default:
101-
usage(argv[0]);
143+
fprintf(stderr,"Try '%s --help' for more information.\n",argv[0]);
102144
returnILLEGAL_OPTION;
103145
}
104146
}
105147

106148
if (verbose)
107149
{
108-
fprintf(stderr,"ecpg - the postgresql preprocessor, version: %d.%d.%d\n",MAJOR_VERSION,MINOR_VERSION,PATCHLEVEL);
150+
fprintf(stderr,"%s, the PostgreSQL embedded C preprocessor, version %d.%d.%d\n",
151+
progname,MAJOR_VERSION,MINOR_VERSION,PATCHLEVEL);
109152
fprintf(stderr,"exec sql include ... search starts here:\n");
110153
for (ip=include_paths;ip!=NULL;ip=ip->next)
111154
fprintf(stderr," %s\n",ip->path);
112-
fprintf(stderr,"End of search list.\n");
113-
returnOK;
155+
fprintf(stderr,"end of search list\n");
156+
return0;
114157
}
115158

116159
if (optind >=argc)/* no files specified */
117160
{
118-
usage(argv[0]);
161+
fprintf(stderr,"%s: no input files specified\n",progname);
162+
fprintf(stderr,"Try '%s --help' for more information.\n",argv[0]);
119163
return (ILLEGAL_OPTION);
120164
}
121165
else

‎src/interfaces/ecpg/preproc/extern.h

Lines changed: 5 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -80,10 +80,8 @@ extern ScanKeyword *ScanKeywordLookup(char *text);
8080

8181
/* return codes */
8282

83-
#defineOK 0
84-
#definePARSE_ERROR-1
85-
#defineILLEGAL_OPTION-2
86-
#defineINDICATOR_NOT_ARRAY -3
87-
88-
#defineNO_INCLUDE_FILEENOENT
89-
#defineOUT_OF_MEMORYENOMEM
83+
#defineILLEGAL_OPTION1
84+
#defineNO_INCLUDE_FILE2
85+
#definePARSE_ERROR3
86+
#defineINDICATOR_NOT_ARRAY 4
87+
#defineOUT_OF_MEMORY5

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