rpm/rpmio/rpmmacro.h

197 lines
5.2 KiB
C

#ifndef _H_MACRO_
#define _H_MACRO_
/** \ingroup rpmio
* \file rpmio/rpmmacro.h
*/
#ifdef __cplusplus
extern "C" {
#endif
typedef struct rpmMacroEntry_s * rpmMacroEntry;
typedef struct rpmMacroContext_s * rpmMacroContext;
extern rpmMacroContext rpmGlobalMacroContext;
extern rpmMacroContext rpmCLIMacroContext;
/** \ingroup rpmrc
* List of macro files to read when configuring rpm.
* This is a colon separated list of files. URI's are permitted as well,
* identified by the token '://', so file paths must not begin with '//'.
*/
extern const char * macrofiles;
/**
* Markers for sources of macros added throughout rpm.
*/
#define RMIL_DEFAULT -15
#define RMIL_MACROFILES -13
#define RMIL_RPMRC -11
#define RMIL_CMDLINE -7
#define RMIL_TARBALL -5
#define RMIL_SPEC -3
#define RMIL_OLDSPEC -1
#define RMIL_GLOBAL 0
/**
* Print macros to file stream.
* @param mc macro context (NULL uses global context).
* @param fp file stream (NULL uses stderr).
*/
void rpmDumpMacroTable (rpmMacroContext mc,
FILE * fp);
/**
* Return URL path(s) from a (URL prefixed) pattern glob.
* @param patterns glob pattern
* @retval *argcPtr no. of paths
* @retval *argvPtr array of paths (malloc'd contiguous blob)
* @return 0 on success
*/
int rpmGlob(const char * patterns, int * argcPtr,
const char *** argvPtr);
/**
* Expand macro into buffer.
* @deprecated Use rpmExpand().
* @todo Eliminate from API.
* @param spec cookie (unused)
* @param mc macro context (NULL uses global context).
* @retval sbuf input macro to expand, output expansion
* @param slen size of buffer
* @return 0 on success
*/
int expandMacros (void * spec, rpmMacroContext mc,
char * sbuf,
size_t slen);
/**
* Add macro to context.
* @deprecated Use rpmDefineMacro().
* @param mc macro context (NULL uses global context).
* @param n macro name
* @param o macro paramaters
* @param b macro body
* @param level macro recursion level (0 is entry API)
*/
void addMacro (rpmMacroContext mc, const char * n,
const char * o,
const char * b, int level);
/**
* Delete macro from context.
* @param mc macro context (NULL uses global context).
* @param n macro name
*/
void delMacro (rpmMacroContext mc, const char * n);
/**
* Define macro in context.
* @param mc macro context (NULL uses global context).
* @param macro macro name, options, body
* @param level macro recursion level (0 is entry API)
* @return @todo Document.
*/
int rpmDefineMacro (rpmMacroContext mc, const char * macro,
int level);
/**
* Load macros from specific context into global context.
* @param mc macro context (NULL does nothing).
* @param level macro recursion level (0 is entry API)
*/
void rpmLoadMacros (rpmMacroContext mc, int level);
/**
* Load macro context from a macro file.
* @param mc (unused)
* @param fn macro file name
*/
int rpmLoadMacroFile(rpmMacroContext mc, const char * fn);
/**
* Initialize macro context from set of macrofile(s).
* @param mc macro context
* @param macrofiles colon separated list of macro files (NULL does nothing)
*/
void rpmInitMacros (rpmMacroContext mc, const char * macrofiles);
/**
* Destroy macro context.
* @param mc macro context (NULL uses global context).
*/
void rpmFreeMacros (rpmMacroContext mc);
typedef enum rpmCompressedMagic_e {
COMPRESSED_NOT = 0, /*!< not compressed */
COMPRESSED_OTHER = 1, /*!< gzip can handle */
COMPRESSED_BZIP2 = 2, /*!< bzip2 can handle */
COMPRESSED_ZIP = 3, /*!< unzip can handle */
COMPRESSED_LZMA = 4 /*!< lzma can handle */
} rpmCompressedMagic;
/**
* Return type of compression used in file.
* @param file name of file
* @retval compressed address of compression type
* @return 0 on success, 1 on I/O error
*/
int isCompressed (const char * file,
rpmCompressedMagic * compressed);
/**
* Return (malloc'ed) concatenated macro expansion(s).
* @param arg macro(s) to expand (NULL terminates list)
* @return macro expansion (malloc'ed)
*/
char * rpmExpand (const char * arg, ...);
/**
* Canonicalize file path.
* @param path path to canonicalize (in-place)
* @return canonicalized path (malloc'ed)
*/
char * rpmCleanPath (char * path);
/**
* Return (malloc'ed) expanded, canonicalized, file path.
* @param path macro(s) to expand (NULL terminates list)
* @return canonicalized path (malloc'ed)
*/
/* LCL: shrug */
const char * rpmGetPath (const char * path, ...);
/**
* Merge 3 args into path, any or all of which may be a url.
* The leading part of the first URL encountered is used
* for the result, other URL prefixes are discarded, permitting
* a primitive form of URL inheiritance.
* @param urlroot root URL (often path to chroot, or NULL)
* @param urlmdir directory URL (often a directory, or NULL)
* @param urlfile file URL (often a file, or NULL)
* @return expanded, merged, canonicalized path (malloc'ed)
*/
/* LCL: shrug */
const char * rpmGenPath (const char * urlroot,
const char * urlmdir,
const char * urlfile);
/**
* Return macro expansion as a numeric value.
* Boolean values ('Y' or 'y' returns 1, 'N' or 'n' returns 0)
* are permitted as well. An undefined macro returns 0.
* @param arg macro to expand
* @return numeric value
*/
int rpmExpandNumeric (const char * arg);
#ifdef __cplusplus
}
#endif
#endif /* _H_ MACRO_ */