aegis -MoVe_file_Undo(1) General Commands Manual aegis -MoVe_file_Undo(1) NNAAMMEE aegis move file undo - undo the rename a file as part of a change SSYYNNOOPPSSIISS aaeeggiiss --MMooVVee__ffiillee__UUnnddoo [ _o_p_t_i_o_n... ] _f_i_l_e_n_a_m_e... aaeeggiiss --MMooVVee__ffiillee__UUnnddoo --LLiisstt [ _o_p_t_i_o_n... ] aaeeggiiss --MMooVVee__ffiillee__UUnnddoo --HHeellpp DDEESSCCRRIIPPTTIIOONN The _a_e_g_i_s _-_M_o_V_e___f_i_l_e___U_n_d_o command is used to reverse the effects of the _a_e_g_i_s _-_M_o_V_e___f_i_l_e command. You only need to name one half of the rename, the other half will be determined automatically. You may apply this command to whole directories. The named files will be removed from the development directory, and removed from the list of files in the change. FFiillee NNaammee IInntteerrpprreettaattiioonn The aegis program will attempt to determine the project file names from the file names given on the command line. All file names are stored within aegis projects as relative to the root of the baseline directory tree. The development directory and the integration direc- tory are shadows of this baseline directory, and so these relative names apply here, too. Files named on the command line are first con- verted to absolute paths if necessary. They are then compared with the baseline path, the development directory path, and the integration directory path, to determine a baseline-relative name. It is an error if the file named is outside one of these directory trees. The --BBAAssee__RREEllaattiivvee option may be used to cause relative filenames to be interpreted as relative to the baseline path; absolute filenames will still be compared with the various paths in order to determine a baseline-relative name. The _r_e_l_a_t_i_v_e___f_i_l_e_n_a_m_e___p_r_e_f_e_r_e_n_c_e in the user configuration file may be used to modify this default behavior. See _a_e_u_c_o_n_f(5) for more infor- mation. PPrroocceessss SSiiddee EEffffeeccttss This command will cancel any build or test registrations, because adding another file logically invalidates them. NNoottiiffiiccaattiioonn The _n_e_w___f_i_l_e___u_n_d_o___c_o_m_m_a_n_d and _r_e_m_o_v_e___f_i_l_e___u_n_d_o___c_o_m_m_a_n_d in the project _c_o_n_f_i_g file are run, if set. The _p_r_o_j_e_c_t___f_i_l_e___c_o_m_m_a_n_d is also run, if set, and if there has been an integration recently. See _a_e_p_c_o_n_f(5) for more information. WWHHIITTEEOOUUTT Aegis provides you with what is often called a "view path" which indi- cates to development tools (compilers, build systems, _e_t_c) look first in the development directory, then in the branch baseline, and so on up to the trunk baseline. The problem with view paths is that in order to remove files, you need some kind of "whiteout" to say "stop looking, it's been removed." When you user the _a_e_r_m(1) or _a_e_m_v(1) commands, this means "add infor- mation to this change which will remove the file from the baseline when this change is integrated". _I_._e_. while the change is in the _b_e_i_n_g _d_e_v_e_l_o_p_e_d state, the file is only "removed" in the development directory - it's still present in the baseline, and will be until the change is successfully integrated. When you use the _a_e_r_m(1) or _a_e_m_v(1) commands, Aegis will create a 1K file to act as the whiteout. It's contents are rather ugly so that if you compile or include the "removed" file accidentally, you get a fatal error. This will remind you to remove obsolete references. When the change in integrated, the removed file is _n_o_t copied/linked from the baseline to the integration directory, and is _n_o_t copied from the development directory. At this time it is physically gone (no whiteout). It is assumed that because of the error inducing whiteout all old references were found and fixed while the change was in the _b_e_i_n_g _d_e_v_e_l_o_p_e_d state. FFiillee MMaanniiffeessttss When generating list of files to be compiled or linked, it is impor- tant that the file manifest be generated from information known by Aegis, rather than from the file system. This is for several reasons: (a) Aegis knows exactly what (source) files are where, whereas every- thing else is inferring Aegis' knowledge; and (b) looking in the file system is hard when the view path is longer that 2 directories (and Aegis' branching method can make it arbi- trarily long); and (c) The whiteout files, and anything else left "lying around", will confuse any method which interrogates the file system. The easiest way to use Aegis' file knowledge is with something like an _a_w_k(1) script processing the Aegis file lists. For example, you can do this with _m_a_k_e(1) as follows: # generate the file manifest manifest.make.inc: manifest.make.awk ( aegis -l cf -ter ; aegis -l pf -ter ) | \ awk -f manifest.make.awk > manifest.make.inc # now include the file manifest include manifest.make.inc Note: this would be inefficient of you did it once per directory, but there is nothing stopping you writing numerous assignments into the _m_a_n_i_f_e_s_t_._m_a_k_e_._i_n_c file, all in one pass. It is possible to do the same thing with Aegis' report generator (see _a_e_r(1) for more information), but this is more involved than the _a_w_k(1) script. However, with the information "straight from the horse's mouth" as it were, it can also be much smarter. This file manifest would become out-of-date without an interlock to Aegis' file operations commands. By using the _p_r_o_j_e_c_t_-_f_i_l_e___c_o_m_m_a_n_d and _c_h_a_n_g_e___f_i_l_e___c_o_m_m_a_n_d fields of the project _c_o_n_f_i_g file (see _a_e_p_- _c_o_n_f(5) for more information), you can delete this file at strategic times. /* run when the change file manifest is altered */ change_file_command = "rm -f manifest.make.inc"; /* run when the project file manifest is altered */ project_file_command = "rm -f manifest.make.inc"; The new file manifest will thus be re-built during the next _a_e_b(1) command. OOppttiioonnss aanndd PPrreeffeerreenncceess There is a --NNoo--WWhhiitteeOOuutt option, which may be used to suppress whiteout files when you use the _a_e_r_m(1) and _a_e_m_v(1) commands. There is a cor- responding --WWhhiitteeOOuutt option, which is usually the default. There is a _w_h_i_t_e_o_u_t___p_r_e_f_e_r_e_n_c_e field in the user preferences file (see _a_e_u_c_o_n_f(5) for more information) if you want to set this option more permanently. WWhhiitteeoouutt FFiillee TTeemmppllaatteess The _w_h_i_t_e_o_u_t___t_e_m_p_l_a_t_e field of the project _c_o_n_f_i_g file may be used to produce language-specific error files. If no whiteout template entry matches, a very ugly 1KB file will be produced - it should induce com- piler errors for just about any language. If you want a more human-readable error message, entries such as whiteout_template = [ { pattern = [ "*.[ch]" ]; body = "#error This file has been removed."; } ]; can be very effective (this example assumes _g_c_c(1) is being used). If it is essential that _n_o whiteout file be produced, say for C source files, you could use a whiteout template such as whiteout_template = [ { pattern = [ "*.c" ]; } ]; because an absent _b_o_d_y sub-field means generate no whiteout file at all. You may have more than one whiteout template entry, but note that the order of the entries is important. The first entry which matches will be used. NNoottiiffiiccaattiioonn On successful completion of this command, the notifications usually performed by the _a_e_r_m_u(1), _a_e_n_f_u(1) and _a_e_n_t_u(1) commands are run, as appropriate. These include the _p_r_o_j_e_c_t___f_i_l_e___c_o_m_m_a_n_d, _n_e_w___f_i_l_e___u_n_d_o___- _c_o_m_m_a_n_d, _n_e_w___t_e_s_t___u_n_d_o___c_o_m_m_a_n_d and _r_e_m_o_v_e___f_i_l_e___u_n_d_o___c_o_m_m_a_n_d fields of the project _c_o_n_f_i_g file. See _a_e_p_c_o_n_f(5) for more information. OOPPTTIIOONNSS The following options are understood: --CChhaannggee _n_u_m_b_e_r This option may be used to specify a particular change within a project. See _a_e_g_i_s(1) for a complete description of this option. --HHeellpp This option may be used to obtain more information about how to use the _a_e_g_i_s program. --LLiisstt This option may be used to obtain a list of suitable subjects for this command. The list may be more general than expected. --NNoott__LLooggggiinngg This option may be used to disable the automatic logging of output and errors to a file. This is often useful when sev- eral aegis commands are combined in a shell script. --PPrroojjeecctt _n_a_m_e This option may be used to select the project of interest. When no --PPrroojjeecctt option is specified, the _A_E_G_I_S___P_R_O_J_E_C_T envi- ronment variable is consulted. If that does not exist, the user's _$_H_O_M_E_/_._a_e_g_i_s_r_c file is examined for a default project field (see _a_e_u_c_o_n_f(5) for more information). If that does not exist, when the user is only working on changes within a sin- gle project, the project name defaults to that project. Oth- erwise, it is an error. --TTEERRssee This option may be used to cause listings to produce the bare minimum of information. It is usually useful for shell scripts. --VVeerrbboossee This option may be used to cause aegis to produce more output. By default aegis only produces output on errors. When used with the --LLiisstt option this option causes column headings to be added. --VVeerriiffyy__SSyymmbboolliicc__LLiinnkkss This option may be used to request that the symbolic links, or hard links, or file copies, in the work area be updated to reflect the current state of the baseline. This is controlled by the _d_e_v_e_l_o_p_m_e_n_t___d_i_r_e_c_t_o_r_y___s_t_y_l_e field of the project con- figuration file. Only files which are not involved in the change are updated. See also the "symbolic_links_preference" field of _a_e_u_c_o_n_f(5). This option is the default, if meaning- ful for your configuration. The name is an historical acci- dent, hard links and file copies are included. --AAssssuummee__SSyymmbboolliicc__LLiinnkkss This option may be used to request that no update of baseline mirror files take place. This options is useful when you _d_e_f_- _i_n_i_t_e_l_y _k_n_o_w the files' up-to-date-ness isn't important right now; incorrect use of this option may have unanticipated build side-effects. See also the "symbolic_links_preference" field of _a_e_u_c_o_n_f(5). This option is the default, if not meaningful for your configuration. The name is an historical accident, hard links and file copies are included. --WWaaiitt This option may be used to require Aegis commands to wait for access locks, if they cannot be obtained immediately. Defaults to the user's _l_o_c_k___w_a_i_t___p_r_e_f_e_r_e_n_c_e if not specified, see _a_e_u_c_o_n_f(5) for more information. --NNoo__WWaaiitt This option may be used to require Aegis commands to emit a fatal error if access locks cannot be obtained immediately. Defaults to the user's _l_o_c_k___w_a_i_t___p_r_e_f_e_r_e_n_c_e if not specified, see _a_e_u_c_o_n_f(5) for more information. --WWhhiitteeOOuutt This option may be used to request that deleted files be replaced by a "whiteout" file in the development directory. The idea is that compiling such a file will result in a fatal error, in order that all references may be found. This is usually the default. --NNoo__WWhhiitteeOOuutt This option may be used to request that no "whiteout" file be placed in the development directory. See also _a_e_g_i_s(1) for options common to all aegis commands. All options may be abbreviated; the abbreviation is documented as the upper case letters, all lower case letters and underscores (_) are optional. You must use consecutive sequences of optional letters. All options are case insensitive, you may type them in upper case or lower case or a combination of both, case is not important. For example: the arguments "-project", "-PROJ" and "-p" are all inter- preted to mean the --PPrroojjeecctt option. The argument "-prj" will not be understood, because consecutive optional characters were not supplied. Options and other command line arguments may be mixed arbitrarily on the command line, after the function selectors. The GNU long option names are understood. Since all option names for _a_e_g_i_s are long, this means ignoring the extra leading '-'. The "----_o_p_t_i_o_n==_v_a_l_u_e" convention is also understood. RREECCOOMMMMEENNDDEEDD AALLIIAASS The recommended alias for this command is csh% alias aemvu 'aegis -mvu \!* -v' sh$ aemvu(){aegis -mvu "$@" -v} EERRRROORRSS It is an error if the change is not in the _b_e_i_n_g _d_e_v_e_l_o_p_e_d state. It is an error if the change is not assigned to the current user. It is an error if the file is not being moved by the change. EEXXIITT SSTTAATTUUSS The _a_e_g_i_s command will exit with a status of 1 on any error. The _a_e_g_i_s command will only exit with a status of 0 if there are no errors. EENNVVIIRROONNMMEENNTT VVAARRIIAABBLLEESS See _a_e_g_i_s(1) for a list of environment variables which may affect this command. See _a_e_p_c_o_n_f(5) for the project configuration file's _p_r_o_j_e_c_t___s_p_e_c_i_f_i_c field for how to set environment variables for all commands executed by Aegis. SSEEEE AALLSSOO _a_e_c_p(1) copy files into a change _a_e_d_b(1) begin development of a change _a_e_m_v(1) rename files as part of a change _a_e_n_f(1) add files to be created by a change _a_e_n_f_u(1) remove files to be created by a change _a_e_r_m(1) add files to be deleted by a change _a_e_r_m_u(1) remove files to be deleted by a change _a_e_u_c_o_n_f(5) user configuration file format CCOOPPYYRRIIGGHHTT aegis version 4.25.D611 Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014 Peter Miller The aegis program comes with ABSOLUTELY NO WARRANTY; for details use the '_a_e_g_i_s _-_V_E_R_S_i_o_n _L_i_c_e_n_s_e' command. This is free software and you are welcome to redistribute it under certain conditions; for details use the '_a_e_g_i_s _-_V_E_R_S_i_o_n _L_i_c_e_n_s_e' command. AAUUTTHHOORR Peter Miller E-Mail: pmiller@opensource.org.au /\/\* WWW: http://miller.emu.id.au/pmiller/ Reference Manual Aegis aegis -MoVe_file_Undo(1)