scmrw.cpp@ 42469

Last change on this file since 42469 was 40534, checked in by vboxsync, 13 years ago
scm: more splitting and some header merging.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 15.0 KB

Line
1	/* $Id: scmrw.cpp 40534 2012-03-19 11:49:34Z vboxsync $ */
2	/** @file
3	* IPRT Testcase / Tool - Source Code Massager.
4	*/
5
6	/*
7	* Copyright (C) 2010-2012 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18	/*******************************************************************************
19	* Header Files *
20	*******************************************************************************/
21	#include <iprt/assert.h>
22	#include <iprt/ctype.h>
23	#include <iprt/dir.h>
24	#include <iprt/env.h>
25	#include <iprt/file.h>
26	#include <iprt/err.h>
27	#include <iprt/getopt.h>
28	#include <iprt/initterm.h>
29	#include <iprt/mem.h>
30	#include <iprt/message.h>
31	#include <iprt/param.h>
32	#include <iprt/path.h>
33	#include <iprt/process.h>
34	#include <iprt/stream.h>
35	#include <iprt/string.h>
36
37	#include "scm.h"
38
39
40
41	/**
42	* Strip trailing blanks (space & tab).
43	*
44	* @returns True if modified, false if not.
45	* @param pIn The input stream.
46	* @param pOut The output stream.
47	* @param pSettings The settings.
48	*/
49	bool rewrite_StripTrailingBlanks(PSCMRWSTATE pState, PSCMSTREAM pIn, PSCMSTREAM pOut, PCSCMSETTINGSBASE pSettings)
50	{
51	if (!pSettings->fStripTrailingBlanks)
52	return false;
53
54	bool fModified = false;
55	SCMEOL enmEol;
56	size_t cchLine;
57	const char *pchLine;
58	while ((pchLine = ScmStreamGetLine(pIn, &cchLine, &enmEol)) != NULL)
59	{
60	int rc;
61	if ( cchLine == 0
62	\|\| !RT_C_IS_BLANK(pchLine[cchLine - 1]) )
63	rc = ScmStreamPutLine(pOut, pchLine, cchLine, enmEol);
64	else
65	{
66	cchLine--;
67	while (cchLine > 0 && RT_C_IS_BLANK(pchLine[cchLine - 1]))
68	cchLine--;
69	rc = ScmStreamPutLine(pOut, pchLine, cchLine, enmEol);
70	fModified = true;
71	}
72	if (RT_FAILURE(rc))
73	return false;
74	}
75	if (fModified)
76	ScmVerbose(pState, 2, " * Stripped trailing blanks\n");
77	return fModified;
78	}
79
80	/**
81	* Expand tabs.
82	*
83	* @returns True if modified, false if not.
84	* @param pIn The input stream.
85	* @param pOut The output stream.
86	* @param pSettings The settings.
87	*/
88	bool rewrite_ExpandTabs(PSCMRWSTATE pState, PSCMSTREAM pIn, PSCMSTREAM pOut, PCSCMSETTINGSBASE pSettings)
89	{
90	if (!pSettings->fConvertTabs)
91	return false;
92
93	size_t const cchTab = pSettings->cchTab;
94	bool fModified = false;
95	SCMEOL enmEol;
96	size_t cchLine;
97	const char *pchLine;
98	while ((pchLine = ScmStreamGetLine(pIn, &cchLine, &enmEol)) != NULL)
99	{
100	int rc;
101	const char pchTab = (const char )memchr(pchLine, '\t', cchLine);
102	if (!pchTab)
103	rc = ScmStreamPutLine(pOut, pchLine, cchLine, enmEol);
104	else
105	{
106	size_t offTab = 0;
107	const char *pchChunk = pchLine;
108	for (;;)
109	{
110	size_t cchChunk = pchTab - pchChunk;
111	offTab += cchChunk;
112	ScmStreamWrite(pOut, pchChunk, cchChunk);
113
114	size_t cchToTab = cchTab - offTab % cchTab;
115	ScmStreamWrite(pOut, g_szTabSpaces, cchToTab);
116	offTab += cchToTab;
117
118	pchChunk = pchTab + 1;
119	size_t cchLeft = cchLine - (pchChunk - pchLine);
120	pchTab = (const char *)memchr(pchChunk, '\t', cchLeft);
121	if (!pchTab)
122	{
123	rc = ScmStreamPutLine(pOut, pchChunk, cchLeft, enmEol);
124	break;
125	}
126	}
127
128	fModified = true;
129	}
130	if (RT_FAILURE(rc))
131	return false;
132	}
133	if (fModified)
134	ScmVerbose(pState, 2, " * Expanded tabs\n");
135	return fModified;
136	}
137
138	/**
139	* Worker for rewrite_ForceNativeEol, rewrite_ForceLF and rewrite_ForceCRLF.
140	*
141	* @returns true if modifications were made, false if not.
142	* @param pIn The input stream.
143	* @param pOut The output stream.
144	* @param pSettings The settings.
145	* @param enmDesiredEol The desired end of line indicator type.
146	* @param pszDesiredSvnEol The desired svn:eol-style.
147	*/
148	static bool rewrite_ForceEol(PSCMRWSTATE pState, PSCMSTREAM pIn, PSCMSTREAM pOut, PCSCMSETTINGSBASE pSettings,
149	SCMEOL enmDesiredEol, const char *pszDesiredSvnEol)
150	{
151	if (!pSettings->fConvertEol)
152	return false;
153
154	bool fModified = false;
155	SCMEOL enmEol;
156	size_t cchLine;
157	const char *pchLine;
158	while ((pchLine = ScmStreamGetLine(pIn, &cchLine, &enmEol)) != NULL)
159	{
160	if ( enmEol != enmDesiredEol
161	&& enmEol != SCMEOL_NONE)
162	{
163	fModified = true;
164	enmEol = enmDesiredEol;
165	}
166	int rc = ScmStreamPutLine(pOut, pchLine, cchLine, enmEol);
167	if (RT_FAILURE(rc))
168	return false;
169	}
170	if (fModified)
171	ScmVerbose(pState, 2, " * Converted EOL markers\n");
172
173	/* Check svn:eol-style if appropriate */
174	if ( pSettings->fSetSvnEol
175	&& ScmSvnIsInWorkingCopy(pState))
176	{
177	char *pszEol;
178	int rc = ScmSvnQueryProperty(pState, "svn:eol-style", &pszEol);
179	if ( (RT_SUCCESS(rc) && strcmp(pszEol, pszDesiredSvnEol))
180	\|\| rc == VERR_NOT_FOUND)
181	{
182	if (rc == VERR_NOT_FOUND)
183	ScmVerbose(pState, 2, " * Setting svn:eol-style to %s (missing)\n", pszDesiredSvnEol);
184	else
185	ScmVerbose(pState, 2, " * Setting svn:eol-style to %s (was: %s)\n", pszDesiredSvnEol, pszEol);
186	int rc2 = ScmSvnSetProperty(pState, "svn:eol-style", pszDesiredSvnEol);
187	if (RT_FAILURE(rc2))
188	RTMsgError("ScmSvnSetProperty: %Rrc\n", rc2); /** @todo propagate the error somehow... */
189	}
190	if (RT_SUCCESS(rc))
191	RTStrFree(pszEol);
192	}
193
194	/** @todo also check the subversion svn:eol-style state! */
195	return fModified;
196	}
197
198	/**
199	* Force native end of line indicator.
200	*
201	* @returns true if modifications were made, false if not.
202	* @param pIn The input stream.
203	* @param pOut The output stream.
204	* @param pSettings The settings.
205	*/
206	bool rewrite_ForceNativeEol(PSCMRWSTATE pState, PSCMSTREAM pIn, PSCMSTREAM pOut, PCSCMSETTINGSBASE pSettings)
207	{
208	#if defined(RT_OS_WINDOWS) \|\| defined(RT_OS_OS2)
209	return rewrite_ForceEol(pState, pIn, pOut, pSettings, SCMEOL_CRLF, "native");
210	#else
211	return rewrite_ForceEol(pState, pIn, pOut, pSettings, SCMEOL_LF, "native");
212	#endif
213	}
214
215	/**
216	* Force the stream to use LF as the end of line indicator.
217	*
218	* @returns true if modifications were made, false if not.
219	* @param pIn The input stream.
220	* @param pOut The output stream.
221	* @param pSettings The settings.
222	*/
223	bool rewrite_ForceLF(PSCMRWSTATE pState, PSCMSTREAM pIn, PSCMSTREAM pOut, PCSCMSETTINGSBASE pSettings)
224	{
225	return rewrite_ForceEol(pState, pIn, pOut, pSettings, SCMEOL_LF, "LF");
226	}
227
228	/**
229	* Force the stream to use CRLF as the end of line indicator.
230	*
231	* @returns true if modifications were made, false if not.
232	* @param pIn The input stream.
233	* @param pOut The output stream.
234	* @param pSettings The settings.
235	*/
236	bool rewrite_ForceCRLF(PSCMRWSTATE pState, PSCMSTREAM pIn, PSCMSTREAM pOut, PCSCMSETTINGSBASE pSettings)
237	{
238	return rewrite_ForceEol(pState, pIn, pOut, pSettings, SCMEOL_CRLF, "CRLF");
239	}
240
241	/**
242	* Strip trailing blank lines and/or make sure there is exactly one blank line
243	* at the end of the file.
244	*
245	* @returns true if modifications were made, false if not.
246	* @param pIn The input stream.
247	* @param pOut The output stream.
248	* @param pSettings The settings.
249	*
250	* @remarks ASSUMES trailing white space has been removed already.
251	*/
252	bool rewrite_AdjustTrailingLines(PSCMRWSTATE pState, PSCMSTREAM pIn, PSCMSTREAM pOut, PCSCMSETTINGSBASE pSettings)
253	{
254	if ( !pSettings->fStripTrailingLines
255	&& !pSettings->fForceTrailingLine
256	&& !pSettings->fForceFinalEol)
257	return false;
258
259	size_t const cLines = ScmStreamCountLines(pIn);
260
261	/* Empty files remains empty. */
262	if (cLines <= 1)
263	return false;
264
265	/* Figure out if we need to adjust the number of lines or not. */
266	size_t cLinesNew = cLines;
267
268	if ( pSettings->fStripTrailingLines
269	&& ScmStreamIsWhiteLine(pIn, cLinesNew - 1))
270	{
271	while ( cLinesNew > 1
272	&& ScmStreamIsWhiteLine(pIn, cLinesNew - 2))
273	cLinesNew--;
274	}
275
276	if ( pSettings->fForceTrailingLine
277	&& !ScmStreamIsWhiteLine(pIn, cLinesNew - 1))
278	cLinesNew++;
279
280	bool fFixMissingEol = pSettings->fForceFinalEol
281	&& ScmStreamGetEolByLine(pIn, cLinesNew - 1) == SCMEOL_NONE;
282
283	if ( !fFixMissingEol
284	&& cLines == cLinesNew)
285	return false;
286
287	/* Copy the number of lines we've arrived at. */
288	ScmStreamRewindForReading(pIn);
289
290	size_t cCopied = RT_MIN(cLinesNew, cLines);
291	ScmStreamCopyLines(pOut, pIn, cCopied);
292
293	if (cCopied != cLinesNew)
294	{
295	while (cCopied++ < cLinesNew)
296	ScmStreamPutLine(pOut, "", 0, ScmStreamGetEol(pIn));
297	}
298	/* Fix missing EOL if required. */
299	else if (fFixMissingEol)
300	{
301	if (ScmStreamGetEol(pIn) == SCMEOL_LF)
302	ScmStreamWrite(pOut, "\n", 1);
303	else
304	ScmStreamWrite(pOut, "\r\n", 2);
305	}
306
307	ScmVerbose(pState, 2, " * Adjusted trailing blank lines\n");
308	return true;
309	}
310
311	/**
312	* Make sure there is no svn:executable keyword on the current file.
313	*
314	* @returns false - the state carries these kinds of changes.
315	* @param pState The rewriter state.
316	* @param pIn The input stream.
317	* @param pOut The output stream.
318	* @param pSettings The settings.
319	*/
320	bool rewrite_SvnNoExecutable(PSCMRWSTATE pState, PSCMSTREAM pIn, PSCMSTREAM pOut, PCSCMSETTINGSBASE pSettings)
321	{
322	if ( !pSettings->fSetSvnExecutable
323	\|\| !ScmSvnIsInWorkingCopy(pState))
324	return false;
325
326	int rc = ScmSvnQueryProperty(pState, "svn:executable", NULL);
327	if (RT_SUCCESS(rc))
328	{
329	ScmVerbose(pState, 2, " * removing svn:executable\n");
330	rc = ScmSvnDelProperty(pState, "svn:executable");
331	if (RT_FAILURE(rc))
332	RTMsgError("ScmSvnSetProperty: %Rrc\n", rc); /** @todo error propagation here.. */
333	}
334	return false;
335	}
336
337	/**
338	* Make sure the Id and Revision keywords are expanded.
339	*
340	* @returns false - the state carries these kinds of changes.
341	* @param pState The rewriter state.
342	* @param pIn The input stream.
343	* @param pOut The output stream.
344	* @param pSettings The settings.
345	*/
346	bool rewrite_SvnKeywords(PSCMRWSTATE pState, PSCMSTREAM pIn, PSCMSTREAM pOut, PCSCMSETTINGSBASE pSettings)
347	{
348	if ( !pSettings->fSetSvnKeywords
349	\|\| !ScmSvnIsInWorkingCopy(pState))
350	return false;
351
352	char *pszKeywords;
353	int rc = ScmSvnQueryProperty(pState, "svn:keywords", &pszKeywords);
354	if ( RT_SUCCESS(rc)
355	&& ( !strstr(pszKeywords, "Id") /** @todo need some function for finding a word in a string. */
356	\|\| !strstr(pszKeywords, "Revision")) )
357	{
358	if (!strstr(pszKeywords, "Id") && !strstr(pszKeywords, "Revision"))
359	rc = RTStrAAppend(&pszKeywords, " Id Revision");
360	else if (!strstr(pszKeywords, "Id"))
361	rc = RTStrAAppend(&pszKeywords, " Id");
362	else
363	rc = RTStrAAppend(&pszKeywords, " Revision");
364	if (RT_SUCCESS(rc))
365	{
366	ScmVerbose(pState, 2, " * changing svn:keywords to '%s'\n", pszKeywords);
367	rc = ScmSvnSetProperty(pState, "svn:keywords", pszKeywords);
368	if (RT_FAILURE(rc))
369	RTMsgError("ScmSvnSetProperty: %Rrc\n", rc); /** @todo error propagation here.. */
370	}
371	else
372	RTMsgError("RTStrAppend: %Rrc\n", rc); /** @todo error propagation here.. */
373	RTStrFree(pszKeywords);
374	}
375	else if (rc == VERR_NOT_FOUND)
376	{
377	ScmVerbose(pState, 2, " * setting svn:keywords to 'Id Revision'\n");
378	rc = ScmSvnSetProperty(pState, "svn:keywords", "Id Revision");
379	if (RT_FAILURE(rc))
380	RTMsgError("ScmSvnSetProperty: %Rrc\n", rc); /** @todo error propagation here.. */
381	}
382	else if (RT_SUCCESS(rc))
383	RTStrFree(pszKeywords);
384
385	return false;
386	}
387
388	/**
389	* Makefile.kup are empty files, enforce this.
390	*
391	* @returns true if modifications were made, false if not.
392	* @param pIn The input stream.
393	* @param pOut The output stream.
394	* @param pSettings The settings.
395	*/
396	bool rewrite_Makefile_kup(PSCMRWSTATE pState, PSCMSTREAM pIn, PSCMSTREAM pOut, PCSCMSETTINGSBASE pSettings)
397	{
398	/* These files should be zero bytes. */
399	if (pIn->cb == 0)
400	return false;
401	ScmVerbose(pState, 2, " * Truncated file to zero bytes\n");
402	return true;
403	}
404
405	/**
406	* Rewrite a kBuild makefile.
407	*
408	* @returns true if modifications were made, false if not.
409	* @param pIn The input stream.
410	* @param pOut The output stream.
411	* @param pSettings The settings.
412	*
413	* @todo
414	*
415	* Ideas for Makefile.kmk and Config.kmk:
416	* - sort if1of/ifn1of sets.
417	* - line continuation slashes should only be preceded by one space.
418	*/
419	bool rewrite_Makefile_kmk(PSCMRWSTATE pState, PSCMSTREAM pIn, PSCMSTREAM pOut, PCSCMSETTINGSBASE pSettings)
420	{
421	return false;
422	}
423
424	/**
425	* Rewrite a C/C++ source or header file.
426	*
427	* @returns true if modifications were made, false if not.
428	* @param pIn The input stream.
429	* @param pOut The output stream.
430	* @param pSettings The settings.
431	*
432	* @todo
433	*
434	* Ideas for C/C++:
435	* - space after if, while, for, switch
436	* - spaces in for (i=0;i<x;i++)
437	* - complex conditional, bird style.
438	* - remove unnecessary parentheses.
439	* - sort defined RT_OS_*\|\| and RT_ARCH
440	* - sizeof without parenthesis.
441	* - defined without parenthesis.
442	* - trailing spaces.
443	* - parameter indentation.
444	* - space after comma.
445	* - while (x--); -> multi line + comment.
446	* - else statement;
447	* - space between function and left parenthesis.
448	* - TODO, XXX, @todo cleanup.
449	* - Space before/after '*'.
450	* - ensure new line at end of file.
451	* - Indentation of precompiler statements (#ifdef, #defines).
452	* - space between functions.
453	* - string.h -> iprt/string.h, stdarg.h -> iprt/stdarg.h, etc.
454	*/
455	bool rewrite_C_and_CPP(PSCMRWSTATE pState, PSCMSTREAM pIn, PSCMSTREAM pOut, PCSCMSETTINGSBASE pSettings)
456	{
457
458	return false;
459	}
460

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source: vbox/trunk/src/bldprogs/scmrw.cpp@ 42469

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