/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/*
Copyright (c) 2013 D. Richard Hipp
This program is free software; you can redistribute it and/or
modify it under the terms of the Simplified BSD License (also
known as the "2-Clause License" or "FreeBSD License".)
This program is distributed in the hope that it will be useful,
but without any warranty; without even the implied warranty of
merchantability or fitness for a particular purpose.
Author contact information:
drh@hwaci.com
http://www.hwaci.com/drh/
*****************************************************************************
This file implements a basic 'ls' for in-repo content
(not yet filesystem-level).
*/
#include "fossil-scm/fossil-cli.h" /* Fossil App mini-framework */
#include <stdlib.h> /* atoi() */
static void fcli_local_help(){
printf("Usage:\n\t%s [options]fromArtifactUuid toArtifactUuid\n\n", fcli.appName);
puts("Generates diff of individual blobs (not checkin versions!). Options:");
puts("\n\t--context-lines|-c=### Specifies the number of context lines around differences.\n");
puts("\n\t--html|-h Specifies HTML-format output, marked for styling via CSS.\n");
puts("\n\t--invert|-v Inverts the to/from arguments for diff purposes.\n");
puts("\n\t--sbs-width|-w=### specifies a side-by-side diff with the given column width.\n");
puts("\nResults may be weird if specifying conflicting options (-i and -w).\n");
}
struct ADiffOpt {
int diffFlags;
short sbsWidth;
short contextLines;
};
typedef struct ADiffOpt ADiffOpt;
/**
*/
static int f_adiff(fsl_id_t v1, fsl_id_t v2, const ADiffOpt * opt){
int rc = 0;
fsl_cx * f = fcli_cx();
fsl_buffer lhs = fsl_buffer_empty;
fsl_buffer rhs = fsl_buffer_empty;
rc = fsl_content_get(f, v1, &lhs);
if(rc) return rc;
rc = fsl_content_get(f, v2, &rhs);
if(rc) return rc;
rc = fsl_diff_text(&lhs, &rhs, fsl_output_f_FILE, stdout,
opt->contextLines, opt->sbsWidth,
opt->diffFlags);
fsl_buffer_clear(&lhs);
fsl_buffer_clear(&rhs);
return rc;
}
int main(int argc, char * const * argv ){
int rc = 0;
char * vFrom = NULL;
char * vTo = NULL;
char * tmpVal = NULL;
fsl_cx * f;
fsl_id_t idFrom = 0, idTo = 0;
ADiffOpt diffOpt = {
0/*diffFlags*/,
0/*sbsWidth*/,
0/*contextLines*/
};
fcli.appHelp = fcli_local_help;
rc = fcli_setup(argc, argv);
if(FSL_RC_BREAK==rc) /* --help */ return 0;
else if(rc) goto end;
/* Set up/validate args... */
f = fcli.f;
if(!fsl_cx_db_repo(f)){
rc = fcli_err_set(FSL_RC_NOT_A_REPO,
"Requires a repository db. See --help.");
goto end;
}
if(fcli_flag2("v", "invert", NULL)){
diffOpt.diffFlags |= FSL_DIFF_INVERT;
}
if(fcli_flag2("l", "line-numbers", NULL)){
diffOpt.diffFlags |= FSL_DIFF_LINENO;
}
if(fcli_flag2("h", "html", NULL)){
diffOpt.diffFlags |= FSL_DIFF_HTML;
}
if(fcli_flag2("w", "sbs-width", &tmpVal)){
diffOpt.diffFlags |= FSL_DIFF_SIDEBYSIDE;
diffOpt.sbsWidth = atoi(tmpVal);
fsl_free(tmpVal);
tmpVal = NULL;
}
if(fcli_flag2("c", "context-lines", &tmpVal)){
diffOpt.contextLines = atoi(tmpVal);
fsl_free(tmpVal);
tmpVal = NULL;
}
if( fcli_flag_or_arg( "v1", "from", &vFrom) ){
fcli_flag_or_arg( "v2", "to", &vTo);
}
if(fcli_has_unused_flags(0)) goto end;
if(!vFrom || !vTo){
rc = fcli_err_set(FSL_RC_MISUSE, "Both of -v1 UUID and -v2 UUID are required.");
goto end;
}
rc = fsl_sym_to_rid(f, vFrom, FSL_CATYPE_ANY, &idFrom);
if(!rc){
rc = fsl_sym_to_rid(f, vTo, FSL_CATYPE_ANY, &idTo);
}
if(rc) goto end;
rc = f_adiff( idFrom, idTo, &diffOpt );
end:
fsl_free(vFrom);
fsl_free(vTo);
return fcli_end_of_main(rc);
}