diff options
Diffstat (limited to 'subversion/libsvn_client/cat.c')
| -rw-r--r-- | subversion/libsvn_client/cat.c | 308 |
1 files changed, 308 insertions, 0 deletions
diff --git a/subversion/libsvn_client/cat.c b/subversion/libsvn_client/cat.c new file mode 100644 index 0000000..7c58f88 --- /dev/null +++ b/subversion/libsvn_client/cat.c @@ -0,0 +1,308 @@ +/* + * cat.c: implementation of the 'cat' command + * + * ==================================================================== + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + * ==================================================================== + */ + +/* ==================================================================== */ + + + +/*** Includes. ***/ + +#include "svn_hash.h" +#include "svn_client.h" +#include "svn_string.h" +#include "svn_error.h" +#include "svn_subst.h" +#include "svn_io.h" +#include "svn_time.h" +#include "svn_dirent_uri.h" +#include "svn_path.h" +#include "svn_props.h" +#include "client.h" + +#include "svn_private_config.h" +#include "private/svn_wc_private.h" + + +/*** Code. ***/ + +svn_error_t * +svn_client__get_normalized_stream(svn_stream_t **normal_stream, + svn_wc_context_t *wc_ctx, + const char *local_abspath, + const svn_opt_revision_t *revision, + svn_boolean_t expand_keywords, + svn_boolean_t normalize_eols, + svn_cancel_func_t cancel_func, + void *cancel_baton, + apr_pool_t *result_pool, + apr_pool_t *scratch_pool) +{ + apr_hash_t *kw = NULL; + svn_subst_eol_style_t style; + apr_hash_t *props; + svn_string_t *eol_style, *keywords, *special; + const char *eol = NULL; + svn_boolean_t local_mod = FALSE; + svn_stream_t *input; + svn_node_kind_t kind; + + SVN_ERR_ASSERT(SVN_CLIENT__REVKIND_IS_LOCAL_TO_WC(revision->kind)); + + SVN_ERR(svn_wc_read_kind2(&kind, wc_ctx, local_abspath, + (revision->kind != svn_opt_revision_working), + FALSE, scratch_pool)); + + if (kind == svn_node_unknown || kind == svn_node_none) + return svn_error_createf(SVN_ERR_UNVERSIONED_RESOURCE, NULL, + _("'%s' is not under version control"), + svn_dirent_local_style(local_abspath, + scratch_pool)); + if (kind != svn_node_file) + return svn_error_createf(SVN_ERR_CLIENT_IS_DIRECTORY, NULL, + _("'%s' refers to a directory"), + svn_dirent_local_style(local_abspath, + scratch_pool)); + + if (revision->kind != svn_opt_revision_working) + { + SVN_ERR(svn_wc_get_pristine_contents2(&input, wc_ctx, local_abspath, + result_pool, scratch_pool)); + if (input == NULL) + return svn_error_createf(SVN_ERR_ILLEGAL_TARGET, NULL, + _("'%s' has no pristine version until it is committed"), + svn_dirent_local_style(local_abspath, scratch_pool)); + + SVN_ERR(svn_wc_get_pristine_props(&props, wc_ctx, local_abspath, + scratch_pool, scratch_pool)); + } + else + { + svn_wc_status3_t *status; + + SVN_ERR(svn_stream_open_readonly(&input, local_abspath, scratch_pool, + result_pool)); + + SVN_ERR(svn_wc_prop_list2(&props, wc_ctx, local_abspath, scratch_pool, + scratch_pool)); + SVN_ERR(svn_wc_status3(&status, wc_ctx, local_abspath, scratch_pool, + scratch_pool)); + if (status->node_status != svn_wc_status_normal) + local_mod = TRUE; + } + + eol_style = svn_hash_gets(props, SVN_PROP_EOL_STYLE); + keywords = svn_hash_gets(props, SVN_PROP_KEYWORDS); + special = svn_hash_gets(props, SVN_PROP_SPECIAL); + + if (eol_style) + svn_subst_eol_style_from_value(&style, &eol, eol_style->data); + + if (keywords) + { + svn_revnum_t changed_rev; + const char *rev_str; + const char *author; + const char *url; + apr_time_t tm; + const char *repos_root_url; + const char *repos_relpath; + + SVN_ERR(svn_wc__node_get_changed_info(&changed_rev, &tm, &author, wc_ctx, + local_abspath, scratch_pool, + scratch_pool)); + SVN_ERR(svn_wc__node_get_repos_info(NULL, &repos_relpath, &repos_root_url, + NULL, + wc_ctx, local_abspath, scratch_pool, + scratch_pool)); + url = svn_path_url_add_component2(repos_root_url, repos_relpath, + scratch_pool); + + if (local_mod) + { + /* For locally modified files, we'll append an 'M' + to the revision number, and set the author to + "(local)" since we can't always determine the + current user's username */ + rev_str = apr_psprintf(scratch_pool, "%ldM", changed_rev); + author = _("(local)"); + + if (! special) + { + /* Use the modified time from the working copy for files */ + SVN_ERR(svn_io_file_affected_time(&tm, local_abspath, + scratch_pool)); + } + } + else + { + rev_str = apr_psprintf(scratch_pool, "%ld", changed_rev); + } + + SVN_ERR(svn_subst_build_keywords3(&kw, keywords->data, rev_str, url, + repos_root_url, tm, author, + scratch_pool)); + } + + /* Wrap the output stream if translation is needed. */ + if (eol != NULL || kw != NULL) + input = svn_subst_stream_translated( + input, + (eol_style && normalize_eols) ? SVN_SUBST_NATIVE_EOL_STR : eol, + FALSE, kw, expand_keywords, result_pool); + + *normal_stream = input; + + return SVN_NO_ERROR; +} + +svn_error_t * +svn_client_cat2(svn_stream_t *out, + const char *path_or_url, + const svn_opt_revision_t *peg_revision, + const svn_opt_revision_t *revision, + svn_client_ctx_t *ctx, + apr_pool_t *pool) +{ + svn_ra_session_t *ra_session; + svn_client__pathrev_t *loc; + svn_string_t *eol_style; + svn_string_t *keywords; + apr_hash_t *props; + const char *repos_root_url; + svn_stream_t *output = out; + svn_error_t *err; + + /* ### Inconsistent default revision logic in this command. */ + if (peg_revision->kind == svn_opt_revision_unspecified) + { + peg_revision = svn_cl__rev_default_to_head_or_working(peg_revision, + path_or_url); + revision = svn_cl__rev_default_to_head_or_base(revision, path_or_url); + } + else + { + peg_revision = svn_cl__rev_default_to_head_or_working(peg_revision, + path_or_url); + revision = svn_cl__rev_default_to_peg(revision, peg_revision); + } + + if (! svn_path_is_url(path_or_url) + && SVN_CLIENT__REVKIND_IS_LOCAL_TO_WC(peg_revision->kind) + && SVN_CLIENT__REVKIND_IS_LOCAL_TO_WC(revision->kind)) + { + const char *local_abspath; + svn_stream_t *normal_stream; + + SVN_ERR(svn_dirent_get_absolute(&local_abspath, path_or_url, pool)); + SVN_ERR(svn_client__get_normalized_stream(&normal_stream, ctx->wc_ctx, + local_abspath, revision, TRUE, FALSE, + ctx->cancel_func, ctx->cancel_baton, + pool, pool)); + + /* We don't promise to close output, so disown it to ensure we don't. */ + output = svn_stream_disown(output, pool); + + return svn_error_trace(svn_stream_copy3(normal_stream, output, + ctx->cancel_func, + ctx->cancel_baton, pool)); + } + + /* Get an RA plugin for this filesystem object. */ + SVN_ERR(svn_client__ra_session_from_path2(&ra_session, &loc, + path_or_url, NULL, + peg_revision, + revision, ctx, pool)); + + /* Find the repos root URL */ + SVN_ERR(svn_ra_get_repos_root2(ra_session, &repos_root_url, pool)); + + /* Grab some properties we need to know in order to figure out if anything + special needs to be done with this file. */ + err = svn_ra_get_file(ra_session, "", loc->rev, NULL, NULL, &props, pool); + if (err) + { + if (err->apr_err == SVN_ERR_FS_NOT_FILE) + { + return svn_error_createf(SVN_ERR_CLIENT_IS_DIRECTORY, err, + _("URL '%s' refers to a directory"), + loc->url); + } + else + { + return svn_error_trace(err); + } + } + + eol_style = svn_hash_gets(props, SVN_PROP_EOL_STYLE); + keywords = svn_hash_gets(props, SVN_PROP_KEYWORDS); + + if (eol_style || keywords) + { + /* It's a file with no special eol style or keywords. */ + svn_subst_eol_style_t eol; + const char *eol_str; + apr_hash_t *kw; + + if (eol_style) + svn_subst_eol_style_from_value(&eol, &eol_str, eol_style->data); + else + { + eol = svn_subst_eol_style_none; + eol_str = NULL; + } + + + if (keywords) + { + svn_string_t *cmt_rev, *cmt_date, *cmt_author; + apr_time_t when = 0; + + cmt_rev = svn_hash_gets(props, SVN_PROP_ENTRY_COMMITTED_REV); + cmt_date = svn_hash_gets(props, SVN_PROP_ENTRY_COMMITTED_DATE); + cmt_author = svn_hash_gets(props, SVN_PROP_ENTRY_LAST_AUTHOR); + if (cmt_date) + SVN_ERR(svn_time_from_cstring(&when, cmt_date->data, pool)); + + SVN_ERR(svn_subst_build_keywords3(&kw, keywords->data, + cmt_rev->data, loc->url, + repos_root_url, when, + cmt_author ? + cmt_author->data : NULL, + pool)); + } + else + kw = NULL; + + /* Interject a translating stream */ + output = svn_subst_stream_translated(svn_stream_disown(out, pool), + eol_str, FALSE, kw, TRUE, pool); + } + + SVN_ERR(svn_ra_get_file(ra_session, "", loc->rev, output, NULL, NULL, pool)); + + if (out != output) + /* Close the interjected stream */ + SVN_ERR(svn_stream_close(output)); + + return SVN_NO_ERROR; +} |
