diff options
Diffstat (limited to 'src/blogc-make/sass.c')
| -rw-r--r-- | src/blogc-make/sass.c | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/src/blogc-make/sass.c b/src/blogc-make/sass.c new file mode 100644 index 0000000..da4b8b6 --- /dev/null +++ b/src/blogc-make/sass.c @@ -0,0 +1,148 @@ +/* + * blogc: A blog compiler. + * Copyright (C) 2014-2019 Rafael G. Martins <rafael@rafaelmartins.eng.br> + * + * This program can be distributed under the terms of the BSD License. + * See the file LICENSE. + */ + +#include <sass.h> +#include <errno.h> +#include <libgen.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include "ctx.h" +#include "exec-native.h" +#include "rules.h" +#include "./sass.h" +#include "../common/utils.h" + + +bc_slist_t* +bm_sass_outputlist(bm_ctx_t *ctx) +{ + if (ctx == NULL || ctx->settings == NULL || ctx->settings->sass == NULL) + return NULL; + + bc_slist_t *rv = NULL; + + for (size_t i = 0; ctx->settings->sass[i] != NULL; i++) { + char *t = bc_strdup(ctx->settings->sass[i]); + for (int i = strlen(t); i >= 0 ; i--) { + if (t[i] == '.') { + t[i] = '\0'; + break; + } + } + + char *f = bc_strdup_printf("%s/%s.css", ctx->short_output_dir, t); + free(t); + rv = bc_slist_append(rv, bm_filectx_new(ctx, f, NULL, NULL)); + free(f); + } + + return rv; +} + + +int +bm_sass_exec(bm_ctx_t *ctx, bc_slist_t *outputs, bc_trie_t *args) +{ + if (ctx == NULL || ctx->settings == NULL || ctx->settings->sass == NULL) + return 0; + + int rv = 0; + + size_t i = 0; + bc_slist_t *o = outputs; + + for (; ctx->settings->sass[i] != NULL, o != NULL; i++, o = o->next) { + bm_filectx_t *o_fctx = o->data; + if (o_fctx == NULL) + continue; + + if (bc_str_starts_with(basename(ctx->settings->sass[i]), "_")) { + fprintf(stderr, "blogc-make: error: sass: Mixins must be included " + "by other files (%s)\n", ctx->settings->sass[i]); + return 3; + } + if (!bc_str_ends_with(ctx->settings->sass[i], ".scss")) { + fprintf(stderr, "blogc-make: error: sass: Only .scss Sass sources " + "are supported (%s)\n", ctx->settings->sass[i]); + return 3; + } + + bm_filectx_t *f = bm_filectx_new(ctx, ctx->settings->sass[i], NULL, NULL); + + struct Sass_File_Context *fctx = sass_make_file_context(f->path); + struct Sass_Context *sctx = sass_file_context_get_context(fctx); + struct Sass_Compiler *comp = sass_make_file_compiler(fctx); + struct Sass_Options *opts = sass_context_get_options(sctx); + sass_option_set_output_style(opts, SASS_STYLE_COMPRESSED); + char *sass_dir = bc_strdup_printf("%s/sass", ctx->root_dir); + sass_option_push_include_path(opts, sass_dir); + free(sass_dir); + sass_dir = bc_strdup_printf("%s/_sass", ctx->root_dir); + sass_option_push_include_path(opts, sass_dir); + free(sass_dir); + + bc_slist_t *sources = NULL; + + rv = sass_compiler_parse(comp); + if (rv != 0 || 0 != sass_context_get_error_status(sctx)) { + fprintf(stderr, "blogc-make: error: sass: %s\n%s", + o_fctx->path, sass_context_get_error_message(sctx)); + rv = 3; + goto clean; + } + + char **inc = sass_context_get_included_files(sctx); + for (size_t i = 0; inc != NULL && inc[i] != NULL; i++) { + sources = bc_slist_append(sources, bm_filectx_new(ctx, inc[i], NULL, NULL)); + } + + if (!bm_rule_need_rebuild(sources, ctx->settings_fctx, NULL, NULL, o_fctx, false)) + goto clean; + + if (ctx->verbose) + printf("Compiling '%s' to '%s'\n", f->path, o_fctx->path); + else + printf(" SASS %s\n", o_fctx->short_path); + fflush(stdout); + + rv = sass_compiler_execute(comp); + if (rv != 0 || 0 != sass_context_get_error_status(sctx)) { + fprintf(stderr, "blogc-make: error: sass: %s\n%s", + o_fctx->path, sass_context_get_error_message(sctx)); + rv = 3; + goto clean; + } + + rv = bm_exec_native_mkdir_p(o_fctx->path); + if (rv != 0) + goto clean; + + FILE *fp = fopen(o_fctx->path, "w"); + if (fp == NULL) { + fprintf(stderr, "blogc-make: error: sass: failed to open output " + "file (%s): %s\n", o_fctx->path, strerror(errno)); + rv = 3; + goto clean; + } + + fputs(sass_context_get_output_string(sctx), fp); + fclose(fp); + +clean: + bm_filectx_free(f); + bc_slist_free_full(sources, (bc_free_func_t) bm_filectx_free); + sass_delete_compiler(comp); + sass_delete_file_context(fctx); + + if (rv != 0) + return rv; + } + + return 0; +} |